Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 39.58 41.74 47.70 55.64 64.69 70.97 74.33 72.95 68.58 58.13 48.51 41.89
1952 41.37 43.78 48.81 57.06 66.58 72.96 75.65 73.08 65.60 57.04 47.78 43.41
1953 41.78 45.15 50.00 58.69 66.72 73.57 75.25 73.38 67.68 58.58 49.63 42.43
1954 41.24 43.41 51.01 56.47 65.09 70.11 74.59 73.68 68.07 57.93 46.92 39.10
1955 37.61 41.91 50.07 58.75 64.63 70.59 73.73 73.93 67.00 56.88 45.99 39.17
1956 38.43 42.44 48.39 55.98 64.41 71.42 74.34 72.70 67.02 57.52 51.56 43.77
1957 43.13 42.60 50.84 58.27 67.00 72.21 74.46 73.18 66.18 58.12 48.83 42.04
1958 36.80 37.18 44.66 54.93 64.42 71.14 74.54 73.47 67.28 59.80 48.91 41.71
1959 38.23 42.14 49.61 58.52 67.39 72.96 75.86 74.69 69.16 58.79 49.68 42.93
1960 40.24 38.09 45.11 53.48 65.87 70.80 75.41 74.21 68.66 59.22 47.74 39.17
1961 37.10 42.92 49.32 55.44 61.66 69.12 73.50 73.83 68.22 60.38 49.32 42.22
1962 38.79 40.79 46.82 56.22 65.48 71.56 73.05 70.91 66.40 57.15 47.47 38.91
1963 34.97 40.16 48.73 58.60 65.57 70.76 74.09 72.02 66.76 58.25 46.70 39.41
1964 35.56 41.00 47.33 56.95 65.76 71.70 73.76 71.39 63.96 56.80 48.17 43.04
1965 38.81 39.95 46.58 57.14 66.15 71.95 73.69 73.49 67.21 58.53 49.48 41.40
1966 37.23 38.88 46.06 55.40 63.39 71.54 74.34 72.38 65.03 56.63 47.34 42.14
1967 37.75 41.45 47.85 56.08 63.58 68.29 72.43 69.92 63.64 54.19 47.15 39.85
1968 36.23 39.27 47.46 57.37 64.63 70.73 74.82 72.56 66.30 57.23 46.69 38.35
1969 34.67 37.90 46.45 55.71 64.89 70.41 71.90 69.25 62.71 54.94 46.13 38.79
1970 36.47 39.26 48.01 57.14 66.49 72.25 74.47 73.94 68.15 59.31 49.20 41.18
1971 38.29 39.92 47.28 55.37 65.21 70.90 73.92 72.07 68.44 60.15 52.87 45.17
1972 41.94 42.27 47.96 56.50 63.11 68.71 71.86 72.34 65.72 56.54 47.99 42.49
1973 40.06 42.54 48.26 56.35 63.89 70.51 74.42 73.53 68.30 60.80 50.61 46.35
1974 42.90 46.96 51.41 59.61 65.27 70.00 72.45 71.40 65.10 56.51 47.92 42.95
1975 40.96 42.62 47.73 56.37 65.27 71.08 73.71 72.28 67.69 59.30 49.64 40.97
1976 38.86 43.23 51.53 57.19 63.36 68.06 71.53 70.15 63.08 52.90 42.67 33.33
1977 31.90 37.95 49.60 58.75 64.13 70.57 74.02 74.40 66.33 57.40 46.57 38.12
1978 32.11 34.75 44.29 54.81 63.55 69.03 73.28 73.34 67.64 59.53 49.94 42.44
1979 36.08 39.07 46.80 57.26 63.25 68.57 71.97 71.34 65.46 57.48 48.94 42.77
1980 37.85 38.78 45.22 55.31 64.35 71.73 75.97 76.70 69.64 59.66 49.56 42.22
1981 39.18 40.16 48.94 57.23 67.34 71.83 74.07 70.78 64.17 56.51 46.27 37.89
1982 35.47 39.78 48.01 57.07 64.65 71.31 72.29 70.87 65.11 57.82 50.15 42.86
1983 39.02 40.71 46.58 54.37 61.95 69.62 75.05 74.40 68.58 59.37 48.50 40.45
1984 38.69 41.41 47.78 53.82 63.71 69.64 72.91 69.06 65.65 55.66 50.64 40.63
1985 39.37 40.57 50.55 59.44 66.42 70.36 71.86 70.20 65.60 60.30 50.24 42.05
1986 36.81 40.76 48.57 56.70 65.37 71.91 73.84 71.43 64.35 56.75 47.45 39.53
1987 36.18 38.84 45.58 55.17 64.23 72.28 76.12 75.05 66.60 57.53 48.08 40.33
1988 35.63 36.60 44.50 52.37 60.66 67.44 72.33 70.22 61.65 51.31 42.85 40.22
1989 38.45 41.44 45.86 52.74 61.17 67.91 71.41 69.46 63.31 56.01 43.59 39.50
1990 38.67 46.98 52.16 58.37 65.52 71.54 74.76 72.84 67.12 59.73 50.75 43.40
1991 40.17 43.24 50.73 58.92 66.76 73.28 75.89 74.60 67.64 58.54 50.15 44.11
1992 42.77 43.53 49.06 54.82 62.50 69.06 72.81 72.28 64.93 56.80 47.71 43.10
1993 39.65 40.81 45.57 54.87 64.35 72.24 76.01 75.76 69.03 59.89 48.96 39.92
1994 36.51 40.33 50.74 58.36 66.83 71.84 75.81 73.45 66.57 59.31 51.49 45.41
1995 40.48 42.74 48.88 57.95 64.94 71.34 75.61 74.24 68.28 57.00 46.25 37.44
1996 35.75 38.37 46.87 55.59 65.47 70.60 73.05 71.15 65.88 55.64 46.84 39.35
1997 39.45 42.53 48.27 54.35 61.37 69.01 73.26 72.29 65.68 55.86 46.72 40.06

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  11   9    0.926 0.923 0.908 0.906
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.0 38.7 39.4 36.8 36.2 35.6 38.5 38.7 40.2 42.8 39.7 36.5 40.5 35.8 39.5
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
S- 10 -1.7  0.2 -0.9 -2.1 -2.2 -2.5 -2.2 -2.2 -3.3  0.0 -0.7 -1.0 -1.0 -1.5 -2.3
S- 13 -4.3 -3.1 -4.1 -5.8 -5.3 -5.3 -5.8 -6.0 -5.7 -3.2 -3.3 -4.6 -3.2 -5.1 -5.3
S- 11  0.4  3.2  2.8  1.0 -0.9 -0.2 -0.2  0.6 -0.3  2.5  1.2  1.2  2.1  0.6 -0.1
S-  9  3.8  7.3  6.5  5.3  3.8  3.5  3.9  5.0  3.8  7.0  5.8  6.2  6.3  5.1  4.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.00-0.53-0.68-1.21-1.29-1.40 38.91 39.40-0.49 38.51 40.07-1.57  -1.08
     13 -4.32-4.08-4.11-4.46-4.61-4.33       42.99-4.08       43.16-4.65  -0.58
     11  1.39 1.61 1.56 1.49 1.14 1.03       37.27 1.63       37.59 0.92  -0.71
      9  5.89 6.07 6.37 6.04 5.36 5.47       32.62 6.29       33.35 5.16  -1.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.52  2.48                   2.26  2.49 0.91  1.94  1.82 1.06   1.17
     13         2.54                         2.78 0.81        1.66 1.16   1.43
     11         2.77                         3.08 0.73        1.75 1.11   1.51
      9         2.89                         2.99 0.76        1.85 1.05   1.38
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 40.07)(1.06) + 38.51      0.96(F 13 - 43.16)(1.16) + 38.51

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12  11    0.943 0.936 0.920 0.906
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.7 41.4 40.6 40.8 38.8 36.6 41.4 47.0 43.2 43.5 40.8 40.3 42.7 38.4 42.5
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0
cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3
S- 10 -1.1  0.8 -0.4 -1.8 -1.4 -3.2 -2.1 -1.2 -1.7 -0.1 -0.8 -0.4 -0.2 -1.0 -1.7
S- 13 -3.7 -3.7 -4.1 -5.9 -5.1 -6.5 -6.2 -4.4 -4.8 -3.6 -4.0 -5.0 -3.3 -5.0 -6.4
S- 12 -6.4 -6.3 -6.9 -8.8 -7.6 -9.2 -9.4 -7.5 -7.9 -6.2 -7.6 -8.7 -6.1 -8.5 -9.4
S- 11  1.1  2.6  3.0  0.4 -1.0 -1.2 -1.7  1.5  0.9  1.8  0.8  1.6  2.0  0.9 -0.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.61-0.48-0.21-0.61-0.96-0.85 41.55 41.89-0.34 41.26 42.35-1.09  -0.75
     13 -4.41-4.37-3.96-4.43-4.76-4.57       45.76-4.21       46.03-4.77  -0.56
     12 -7.30-7.03-6.80-7.51-7.56-7.78       48.54-6.99       49.03-7.77  -0.78
     11  1.30 1.45 1.60 1.55 0.79 1.05       40.04 1.51       40.46 0.80  -0.71
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.44  2.45                   2.04  2.14 0.95  2.36  2.25 1.05   1.11
     13         2.57                         2.47 0.82        2.21 1.07   1.30
     12         2.68                         2.35 0.86        2.27 1.04   1.21
     11         2.71                         2.61 0.78        2.27 1.04   1.33
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.97(F 10 - 42.35)(1.05) + 41.26      0.97(F 13 - 46.03)(1.07) + 41.26

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   9    0.924 0.897 0.895 0.862
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 46.6 47.8 50.5 48.6 45.6 44.5 45.9 52.2 50.7 49.1 45.6 50.7 48.9 46.9 48.3
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
S- 10 -0.7  0.2  0.1 -1.0 -0.8 -3.0 -2.1 -0.1 -0.5  0.0 -0.6  0.5  0.3  0.5 -1.1
S- 12 -5.8 -6.2 -5.4 -7.9 -6.2 -8.7 -8.9 -6.0 -6.7 -5.7 -6.2 -6.0 -6.1 -5.8 -8.3
S- 13 -3.5 -3.5 -3.2 -5.7 -4.4 -6.6 -6.4 -3.3 -4.1 -3.4 -3.5 -3.2 -3.7 -3.2 -5.4
S-  9  4.7  6.3  6.9  4.5  3.7  2.6  3.7  6.0  5.5  5.9  5.7  7.2  6.7  7.0  4.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.14-0.25 0.28 0.08-0.67-0.14 48.33 48.40-0.06 48.11 48.67-0.56  -0.50
     12 -6.25-6.07-6.03-6.06-6.73-6.40       54.41-6.08       54.77-6.66  -0.58
     13 -3.91-3.86-3.74-3.71-4.42-3.78       52.13-3.79       52.32-4.20  -0.41
      9  5.92 6.09 6.07 6.25 5.13 6.13       42.19 6.14       42.70 5.41  -0.73
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.98  1.97                   1.88  1.95 0.96  2.20  1.80 1.23   1.28
     12         1.96                         1.90 0.99        2.02 1.09   1.10
     13         1.96                         2.04 0.92        1.92 1.15   1.25
      9         2.04                         2.10 0.89        1.69 1.30   1.46
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.96(F 10 - 48.67)(1.23) + 48.11      0.95(F 12 - 54.77)(1.09) + 48.11

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  12  11    0.838 0.837 0.815 0.772
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 54.4 53.8 59.4 56.7 55.2 52.4 52.7 58.4 58.9 54.8 54.9 58.4 58.0 55.6 54.3
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1
S- 13 -3.7 -4.2 -2.4 -4.5 -4.2 -6.6 -5.9 -2.6 -3.9 -3.1 -3.0 -2.1 -3.5 -2.9 -4.7
S- 10 -1.1 -0.5  0.3 -1.0 -0.8 -3.3 -2.5  0.5 -1.0 -0.3 -0.8  1.1  0.7  0.7 -0.7
S- 12 -5.7 -6.8 -4.2 -6.2 -5.4 -8.3 -8.1 -4.9 -6.2 -5.1 -5.3 -4.3 -5.6 -5.2 -7.4
S- 11  1.9  1.7  3.4  1.2  0.1 -1.4 -1.0  3.0  1.2  2.0  2.5  4.4  2.4  2.8  1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -3.40-3.48-3.17-3.06-3.93-3.32 56.81 60.19-3.38 55.86 59.67-3.81  -0.43
     10  0.00-0.14 0.53 0.25-0.64-0.04       56.76 0.04       56.44-0.58  -0.63
     12 -5.30-5.21-4.89-5.07-5.84-5.60       61.92-5.11       61.78-5.92  -0.81
     11  2.06 2.20 1.97 2.44 1.40 2.36       54.68 2.13       54.16 1.70  -0.43
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.73  1.53                   1.52  1.59 0.96  2.21  1.57 1.40   1.47
     10         1.52                         1.54 0.99        1.62 1.36   1.38
     12         1.46                         1.46 1.04        1.58 1.40   1.34
     11         1.54                         1.66 0.92        1.58 1.40   1.53
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.92(F 13 - 59.67)(1.40) + 55.86      0.91(F 10 - 56.44)(1.36) + 55.86

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  12  10  11    0.825 0.824 0.817 0.814
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 62.0 63.7 66.4 65.4 64.2 60.7 61.2 65.5 66.8 62.5 64.3 66.8 64.9 65.5 61.4
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
S- 13 -3.5 -3.0 -2.6 -4.6 -3.9 -5.9 -5.4 -2.3 -3.2 -2.7 -3.1 -1.5 -3.2 -2.6 -2.5
S- 12 -5.1 -5.1 -4.3 -5.6 -4.8 -7.2 -7.8 -4.3 -5.2 -4.5 -4.5 -3.0 -5.2 -4.3 -4.8
S- 10 -1.2 -0.9 -0.3 -1.4 -1.2 -3.1 -3.4  0.5 -1.1 -0.2 -1.0  0.5  0.0  0.2 -0.4
S- 11  2.0  2.3  3.3  1.1  0.9 -0.7  0.6  3.4  1.7  2.3  2.5  4.1  2.6  2.9  2.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -3.13-3.42-2.81-2.99-3.64-2.68 65.43 68.64-3.21 64.08 67.41-3.32  -0.11
     12 -4.59-4.48-4.10-4.63-5.22-4.52       69.77-4.34       69.13-5.05  -0.71
     10 -0.36-0.42 0.22-0.27-1.01-0.31       65.60-0.17       64.96-0.87  -0.70
     11  2.21 2.17 2.12 2.40 1.83 2.70       63.26 2.17       61.96 2.12  -0.05
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.64  1.50                   1.36  1.36 1.00  2.02  1.66 1.22   1.22
     12         1.33                         1.16 1.17        1.56 1.30   1.11
     10         1.42                         1.39 0.98        1.58 1.28   1.31
     11         1.51                         1.45 0.94        1.64 1.23   1.31
Suggested regression eqns from two most closely related CDs ( 13 and  12): 
          0.91(F 13 - 67.41)(1.22) + 64.08      0.91(F 12 - 69.13)(1.30) + 64.08

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  10  13   9    0.825 0.810 0.799 0.760
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.6 69.6 70.4 71.9 72.3 67.4 67.9 71.5 73.3 69.1 72.2 71.8 71.3 70.6 69.0
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
S- 11  1.5  2.0  1.8  1.1  1.2 -0.5  0.7  2.9  2.3  2.3  1.9  3.8  2.6  1.5  2.6
S- 10 -1.7 -1.8 -1.4 -2.1 -1.7 -3.8 -3.9 -0.6 -1.5 -1.0 -1.6 -0.5 -0.9 -1.0 -0.7
S- 13 -4.0 -3.4 -3.5 -4.9 -3.6 -5.4 -5.0 -3.0 -2.6 -3.1 -3.9 -1.7 -3.0 -4.1 -2.5
S-  9  3.5  3.5  3.8  3.4  2.7  0.3  1.5  5.2  2.9  4.0  4.0  5.2  4.2  4.1  4.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  2.01 1.91 2.36 2.02 1.46 2.43 71.45 69.39 2.06 70.54 68.69 1.85  -0.21
     10 -1.05-0.87-0.45-1.06-1.84-1.02       72.15-0.69       72.15-1.61  -0.92
     13 -3.22-3.40-2.62-3.14-3.90-2.97       74.61-3.15       74.11-3.58  -0.42
      9  3.84 4.09 4.09 3.73 3.27 4.10       67.31 4.14       67.04 3.50  -0.65
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.46  1.47                   1.13  1.43 0.79  1.66  1.45 1.14   1.45
     10         1.30                         1.15 0.98        1.40 1.19   1.21
     13         1.48                         1.32 0.86        1.49 1.12   1.30
      9         1.42                         1.45 0.78        1.53 1.09   1.40
Suggested regression eqns from two most closely related CDs ( 11 and  10): 
          0.91(F 11 - 68.69)(1.14) + 70.54      0.90(F 10 - 72.15)(1.19) + 70.54

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  11  13   9    0.744 0.694 0.681 0.671
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.1 72.9 71.9 73.8 76.1 72.3 71.4 74.8 75.9 72.8 76.0 75.8 75.6 73.1 73.3
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
S- 10 -1.1 -2.2 -2.5 -2.8 -1.4 -3.7 -4.5 -1.0 -0.9 -1.2 -1.2 -0.4 -0.9 -1.7 -0.8
S- 11  2.2  1.2  0.7  0.3  2.4 -0.2 -0.1  2.6  3.3  2.6  2.1  3.7  2.5  1.6  2.5
S- 13 -3.0 -3.6 -4.4 -5.4 -2.9 -5.1 -5.3 -3.4 -1.7 -3.0 -3.3 -1.2 -2.2 -3.8 -2.3
S-  9  3.6  2.4  2.7  2.8  3.4  0.2  0.6  4.5  3.9  4.3  3.9  4.6  3.2  3.3  4.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.45-1.15-1.11-1.60-2.26-1.01 74.42 75.44-1.02 74.05 75.81-1.76  -0.74
     11  1.88 1.82 2.25 1.87 1.07 2.63       72.39 2.03       72.21 1.83  -0.19
     13 -3.20-3.33-2.70-3.17-4.11-2.49       77.48-3.06       77.42-3.38  -0.31
      9  3.48 3.80 3.67 3.38 2.77 3.90       70.51 3.91       70.87 3.18  -0.73
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.32  1.07                   0.80  0.93 0.86  1.59  1.08 1.47   1.72
     11         1.21                         1.17 0.68        1.06 1.49   2.19
     13         1.24                         1.16 0.69        1.16 1.37   1.99
      9         1.17                         1.06 0.75        1.25 1.27   1.69
Suggested regression eqns from two most closely related CDs ( 10 and  11): 
          0.86(F 10 - 75.81)(1.47) + 74.05      0.83(F 11 - 72.21)(1.49) + 74.05

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  11  12    0.823 0.773 0.739 0.735
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.4 69.1 70.2 71.4 75.1 70.2 69.5 72.8 74.6 72.3 75.8 73.4 74.2 71.2 72.3
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
S- 10 -1.0 -3.5 -3.3 -3.4 -1.2 -4.4 -4.6 -1.5 -0.8 -1.6 -0.6 -0.2 -0.9 -2.0 -1.2
S- 13 -2.8 -5.1 -4.3 -5.8 -2.6 -5.9 -5.5 -4.1 -1.6 -3.1 -2.6 -1.0 -2.3 -4.0 -3.1
S- 11  2.5 -0.1  0.5 -0.8  3.1 -1.2 -0.7  1.7  3.1  2.2  3.0  4.0  2.4  1.5  2.1
S- 12 -3.9 -6.7 -6.4 -7.2 -3.8 -7.5 -7.6 -5.4 -3.4 -5.5 -3.5 -2.9 -3.4 -5.6 -4.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.69-1.29-1.57-1.69-2.67-1.03 73.13 74.33-1.21 72.43 74.43-2.00  -0.79
     13 -3.35-3.25-3.18-3.15-4.38-2.52       76.22-3.10       76.00-3.58  -0.48
     11  1.65 1.67 1.80 1.83 0.65 2.60       71.32 1.81       70.88 1.55  -0.25
     12 -4.69-4.17-4.54-4.52-5.90-4.15       77.28-4.15       77.61-5.18  -1.02
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.73  1.24                   0.99  1.12 0.89  2.06  1.08 1.91   2.14
     13         1.32                         1.12 0.89        1.23 1.67   1.88
     11         1.34                         1.14 0.87        1.11 1.85   2.14
     12         1.09                         0.92 1.07        0.97 2.13   1.99
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.91(F 10 - 74.43)(1.91) + 72.43      0.88(F 13 - 76.00)(1.67) + 72.43

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  11  13   9    0.763 0.761 0.756 0.737
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.6 65.7 65.6 64.3 66.6 61.7 63.3 67.1 67.6 64.9 69.0 66.6 68.3 65.9 65.7
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
S- 10 -0.4 -3.6 -3.2 -4.2 -0.7 -4.5 -4.8 -1.4 -0.8 -1.2  0.4  0.2 -0.8 -1.4 -1.4
S- 11  2.8 -0.6  0.0 -1.5  3.0 -1.4 -0.8  1.8  2.4  1.8  4.0  3.2  2.7  1.8  1.8
S- 13 -2.1 -5.4 -4.7 -6.1 -2.3 -6.6 -6.0 -4.0 -2.0 -3.0 -1.5 -1.3 -2.3 -2.8 -3.4
S-  9  4.9  1.3  1.9  1.1  4.7  0.3  0.7  4.0  4.2  3.9  5.8  5.3  4.1  3.8  4.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.57-1.10-1.70-1.54-2.55-0.72 67.19 68.22-1.04 66.06 67.92-1.86  -0.82
     11  1.59 1.73 1.50 1.90 0.57 2.54       65.38 1.80       64.65 1.41  -0.39
     13 -3.35-3.17-3.43-3.09-4.42-2.32       70.25-3.06       69.62-3.56  -0.50
      9  3.66 4.08 3.42 3.95 2.58 4.51       63.15 4.03       62.70 3.36  -0.67
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.85  1.42                   1.29  1.31 0.98  1.93  1.07 1.81   1.85
     11         1.43                         1.27 1.02        1.04 1.86   1.83
     13         1.44                         1.41 0.92        1.10 1.76   1.92
      9         1.50                         1.33 0.97        1.10 1.76   1.82
Suggested regression eqns from two most closely related CDs ( 10 and  11): 
          0.87(F 10 - 67.92)(1.81) + 66.06      0.87(F 11 - 64.65)(1.86) + 66.06

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  11    0.807 0.797 0.782 0.777
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 59.4 55.7 60.3 56.8 57.5 51.3 56.0 59.7 58.5 56.8 59.9 59.3 57.0 55.6 55.9
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
S- 10 -0.1 -3.9 -2.8 -3.9 -0.9 -5.1 -3.7 -1.0 -0.7 -1.8 -0.2 -0.1 -1.2 -1.6 -2.1
S-  9  5.7  1.7  2.8  1.9  4.8  0.2  2.6  4.6  5.1  3.8  6.2  5.1  5.0  4.5  4.4
S- 13 -1.6 -5.9 -4.7 -6.3 -2.3 -7.5 -5.1 -3.1 -1.9 -3.4 -1.6 -1.5 -2.7 -3.3 -3.7
S- 11  3.5 -0.9  0.3 -1.8  3.1 -2.3  0.7  2.5  2.6  1.7  4.0  3.1  2.9  1.6  1.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.50-1.18-1.47-1.32-2.32-1.10 58.21 59.27-1.06 57.31 59.25-1.94  -0.88
      9  4.21 4.58 3.97 4.54 3.28 4.88       53.73 4.48       53.41 3.90  -0.58
     13 -3.36-3.24-3.37-3.13-4.24-2.60       61.38-3.17       60.96-3.64  -0.47
     11  1.81 2.05 1.74 2.05 0.90 2.50       56.22 1.99       55.81 1.50  -0.49
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.93  1.52                   1.02  0.78 1.30  2.27  1.55 1.47   1.13
      9         1.66                         0.90 1.13        1.63 1.39   1.23
     13         1.52                         0.79 1.29        1.60 1.41   1.10
     11         1.62                         0.81 1.26        1.72 1.32   1.05
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.90(F 10 - 59.25)(1.47) + 57.31      0.89(F  9 - 53.41)(1.39) + 57.31

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  10   9  38    0.872 0.869 0.868 0.858
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.5 50.6 50.2 47.5 48.1 42.8 43.6 50.8 50.2 47.7 49.0 51.5 46.3 46.8 46.7
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S- 11  3.2  0.2  1.0 -1.2  2.1 -1.1  0.8  1.6  3.0  2.4  3.3  2.6  2.4  1.0  2.1
S- 10 -0.2 -2.6 -2.3 -3.6 -0.9 -4.2 -2.9 -2.4 -0.6 -1.3 -0.5 -0.6 -1.3 -1.8 -1.8
S-  9  6.3  3.0  4.4  3.0  4.6  1.6  4.2  4.0  5.7  4.9  6.1  5.1  5.2  4.2  4.5
S- 38  4.2  1.2  2.8  1.3  2.6 -0.9  2.3  2.6  3.5  3.0  4.8  2.8  3.7  1.7  2.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  1.94 2.29 1.92 2.25 0.99 2.39 48.45 46.20 2.24 48.01 46.46 1.55  -0.69
     10 -1.31-0.90-1.19-1.14-2.13-1.13       49.29-0.84       49.82-1.81  -0.96
      9  4.85 5.31 4.85 5.09 3.98 5.10       43.22 5.23       43.56 4.45  -0.78
     38  2.77 3.13 2.76 3.04 1.92 3.12       45.35 3.09       45.48 2.54  -0.56
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.09  2.00                   1.37  1.44 0.95  2.45  2.26 1.08   1.14
     10         1.96                         1.43 0.96        2.11 1.16   1.21
      9         2.15                         1.54 0.89        2.26 1.09   1.22
     38         2.17                         1.48 0.93        2.20 1.11   1.20
Suggested regression eqns from two most closely related CDs ( 11 and  10): 
          0.93(F 11 - 46.46)(1.08) + 48.01      0.93(F 10 - 49.82)(1.16) + 48.01

Station#1856  BEDFORD             , va  4055102    lat/lon 79.53   37.33    37M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11   9    0.900 0.891 0.887 0.866
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.5 40.6 42.0 39.5 40.3 40.2 39.5 43.4 44.1 43.1 39.9 45.4 37.4 39.3 40.1
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
S- 13 -2.7 -4.4 -4.5 -5.9 -4.0 -6.2 -5.4 -4.6 -2.4 -3.0 -3.3 -2.3 -4.4 -5.2 -4.8
S- 10  0.3 -1.9 -2.2 -3.0 -1.7 -3.2 -2.2 -2.6 -0.5 -1.2 -1.3 -1.0 -1.7 -2.4 -3.5
S- 11  3.2  1.8  1.9 -1.3  0.9 -0.9  1.4  0.4  3.2  1.8  2.4  2.6  0.9  0.1  0.4
S-  9  7.2  4.8  5.4  3.6  3.9  2.2  5.2  3.9  7.0  5.1  6.2  5.6  4.8  4.2  2.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -3.85-3.83-3.62-3.56-4.53-3.62 41.37 45.11-3.74 41.03 45.23-4.20  -0.46
     10 -1.22-0.77-0.86-1.05-1.93-1.64       42.12-0.75       42.90-1.86  -1.12
     11  1.78 2.09 1.95 2.23 0.96 1.64       39.26 2.11       39.78 1.25  -0.87
      9  5.49 5.92 5.86 5.88 4.56 5.09       35.43 5.94       36.24 4.79  -1.15
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.36  2.24                   1.68  1.95 0.86  2.06  1.65 1.25   1.45
     10         2.36                         1.90 0.89        1.95 1.06   1.19
     11         2.43                         2.14 0.79        1.87 1.10   1.40
      9         2.64                         2.20 0.77        2.10 0.98   1.28
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.95(F 13 - 45.23)(1.25) + 41.03      0.94(F 10 - 42.90)(1.06) + 41.03

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 38.66 40.88 46.75 55.43 64.79 71.85 75.46 74.56 69.35 58.47 48.38 41.29
1952 40.50 42.27 47.69 55.84 66.47 73.76 77.12 74.36 66.86 58.36 48.31 42.99
1953 40.80 43.65 48.95 58.03 67.09 75.02 77.24 76.63 70.89 62.03 51.68 42.71
1954 40.28 42.13 50.30 56.46 65.65 71.18 75.99 76.19 71.41 60.73 48.18 39.13
1955 37.16 41.61 49.91 59.55 66.37 73.05 76.01 75.69 68.71 58.63 46.95 38.93
1956 37.41 41.21 47.44 54.85 64.33 71.71 75.41 73.25 67.26 57.71 51.14 42.81
1957 40.89 40.45 48.95 57.68 66.92 73.08 75.80 74.70 66.60 57.83 48.08 41.24
1958 35.28 35.36 42.89 53.74 63.43 70.54 74.02 73.85 67.34 59.85 47.60 39.78
1959 35.61 40.35 48.43 58.09 67.30 73.27 76.39 75.29 69.63 58.96 49.09 41.82
1960 38.81 36.48 44.22 52.99 65.96 70.66 75.18 74.07 68.49 59.74 47.77 38.67
1961 35.14 40.41 47.21 54.31 61.71 69.93 74.42 74.97 69.44 61.25 49.31 40.68
1962 35.82 37.94 45.17 55.94 65.44 71.36 73.35 71.41 67.22 57.59 47.16 37.40
1963 32.78 38.17 47.21 57.85 65.52 71.60 75.44 73.40 67.80 59.58 47.69 39.97
1964 35.07 40.47 46.21 56.50 65.55 72.84 75.14 73.02 65.84 59.08 49.66 42.91
1965 37.48 38.52 44.88 56.03 65.40 72.61 74.15 74.33 67.75 59.13 49.50 41.28
1966 36.82 38.73 45.56 54.89 63.64 72.94 77.01 74.96 66.94 57.91 47.50 42.13
1967 36.99 40.11 46.29 54.55 63.35 68.55 73.26 71.32 65.47 55.92 47.47 38.90
1968 35.51 38.65 47.59 56.79 64.61 70.88 75.99 74.79 69.11 59.86 48.35 39.02
1969 34.61 37.20 46.11 56.01 66.20 72.14 74.69 72.96 66.97 57.97 46.91 37.28
1970 33.83 36.37 45.33 55.71 66.33 72.99 75.63 75.67 70.41 61.10 49.71 40.14
1971 36.69 37.77 45.81 54.12 64.37 70.75 74.56 73.67 69.46 60.82 52.39 44.25
1972 39.93 39.98 45.58 55.06 62.62 69.23 72.69 73.20 66.25 56.86 47.70 41.97
1973 38.97 41.72 47.77 56.25 64.43 71.46 76.19 75.37 69.71 61.04 49.71 43.86
1974 39.94 43.41 49.02 57.53 64.39 69.98 73.10 72.31 65.83 57.76 49.21 43.26
1975 40.05 40.81 45.46 54.41 63.97 70.71 73.70 71.67 67.49 59.40 49.81 39.96
1976 37.75 42.51 52.11 57.94 65.11 69.91 73.26 71.62 64.28 54.24 43.01 33.74
1977 31.77 38.21 50.07 59.78 65.80 72.50 75.69 76.21 67.87 58.25 46.07 37.16
1978 31.03 33.16 42.61 53.64 63.95 69.44 74.10 73.56 68.24 59.82 50.15 41.92
1979 34.43 37.04 45.11 56.91 63.75 69.78 73.41 72.59 66.07 57.80 49.01 42.34
1980 36.85 37.86 45.12 56.00 65.40 72.45 76.07 76.55 69.19 58.88 47.16 38.74
1981 36.56 38.86 48.82 56.41 66.60 71.49 74.58 72.20 65.35 57.49 46.55 37.21
1982 33.76 37.12 45.95 55.66 64.18 71.85 73.02 71.96 65.51 58.35 50.21 42.63
1983 38.56 39.85 45.47 53.60 62.02 70.46 75.06 74.08 66.93 57.37 45.93 38.08
1984 36.59 39.03 46.33 53.16 64.15 70.25 73.60 70.96 68.11 59.01 52.48 41.38
1985 38.74 39.57 50.06 59.20 66.40 70.68 72.90 72.57 67.51 61.07 49.81 41.95
1986 36.72 41.24 48.68 57.88 66.48 73.25 75.37 73.28 67.09 58.44 48.29 39.38
1987 36.63 39.97 46.58 55.96 65.04 74.09 77.74 75.79 66.89 58.08 48.54 41.27
1988 36.96 39.18 46.88 55.45 64.07 71.61 76.51 74.19 65.84 56.36 47.26 43.85
1989 40.27 43.01 47.12 54.82 64.13 70.70 74.27 71.85 66.44 58.03 44.64 39.66
1990 38.78 46.84 50.99 56.67 63.75 70.47 74.01 72.62 66.73 59.59 51.11 44.14
1991 41.63 44.21 51.11 59.82 68.24 74.45 75.88 74.10 67.76 58.74 49.95 42.84
1992 40.44 41.01 47.12 53.67 61.54 68.66 72.42 71.98 64.30 55.61 45.99 40.31
1993 36.83 37.72 43.49 53.58 64.27 72.37 75.71 74.28 66.32 56.69 45.99 36.52
1994 33.30 36.44 47.79 55.41 65.21 70.08 73.33 71.41 65.38 59.63 51.83 45.61
1995 40.24 42.11 48.10 57.32 64.37 71.43 75.72 74.50 68.60 56.99 45.98 37.32
1996 35.39 37.75 45.63 54.48 65.52 71.25 74.91 72.58 66.86 56.28 47.25 39.62
1997 39.48 42.35 48.44 54.87 62.23 70.09 73.95 72.94 66.47 57.27 48.07 40.41

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.963 0.954 0.947 0.942
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.6 36.6 38.7 36.7 36.6 37.0 40.3 38.8 41.6 40.4 36.8 33.3 40.2 35.4 39.5
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3
S-  7  2.4  3.8  3.9  4.4  3.5  4.1  5.3  4.2  4.2  4.0  2.5  2.9  4.4  4.0  2.8
S- 10 -2.1 -1.9 -1.5 -2.2 -1.7 -1.2 -0.4 -2.1 -1.8 -2.3 -3.5 -4.2 -1.2 -1.8 -2.3
S-  9  3.4  5.2  5.9  5.2  4.2  4.8  5.8  5.1  5.3  4.7  2.9  3.0  6.1  4.8  4.0
S-  8  6.9 10.0 10.3 10.2  8.5  9.4 10.6 10.0 10.0  9.3  8.0  9.1 10.5  9.4  8.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  3.80 3.79 4.04 3.60 3.93 3.56 37.45 33.45 3.99 38.04 34.28 3.76  -0.23
     10 -2.09-1.83-2.04-2.56-1.68-2.46       39.40-1.95       40.07-2.04  -0.09
      9  4.79 4.77 5.02 4.68 4.97 4.40       32.62 4.83       33.35 4.69  -0.14
      8  9.52 9.35 9.64 9.72 9.59 9.20       27.83 9.62       28.68 9.36  -0.26
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.54  2.52                   2.41  2.68 0.90  2.16  2.00 1.08   1.20
     10         2.48                         2.49 0.97        1.82 1.18   1.22
      9         2.89                         2.99 0.81        1.85 1.17   1.44
      8         2.85                         2.97 0.81        2.18 0.99   1.22
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.98(F  7 - 34.28)(1.08) + 38.04      0.98(F 10 - 40.07)(1.18) + 38.04

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.960 0.943 0.932 0.928
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.8 39.0 39.6 41.2 40.0 39.2 43.0 46.8 44.2 41.0 37.7 36.4 42.1 37.8 42.3
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd  8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6
S-  7  2.8  4.8  4.0  5.0  4.4  4.5  5.6  4.8  5.3  4.0  2.7  4.2  4.7  4.1  3.9
S- 10 -2.0 -1.6 -1.4 -1.3 -0.3 -0.7 -0.5 -1.4 -0.8 -2.6 -3.9 -4.3 -0.8 -1.7 -1.9
S-  9  3.8  5.2  6.1  5.4  4.6  5.2  4.8  4.8  6.2  4.0  2.5  3.3  6.1  4.9  4.5
S-  8  7.5 11.0 10.5 10.6  9.1 10.2 10.7 10.1 10.9  9.3  7.9 10.5 10.5  9.6  9.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.19 3.98 4.42 4.00 4.42 4.12 39.99 35.81 4.18 40.69 36.37 4.31   0.13
     10 -1.82-1.88-1.71-2.17-1.22-2.27       41.89-1.90       42.35-1.66   0.23
      9  4.81 4.80 4.93 4.75 5.01 4.49       35.21 4.78       35.92 4.76  -0.02
      8  9.90 9.5410.0410.0510.03 9.79       30.17 9.83       30.80 9.88   0.06
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.55  2.26                   2.19  1.94 1.13  2.63  2.33 1.13   1.00
     10         2.45                         2.14 1.03        2.25 1.17   1.14
      9         2.79                         2.46 0.89        2.36 1.11   1.25
      8         2.54                         2.13 1.03        2.53 1.04   1.01
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.98(F  7 - 36.37)(1.13) + 40.69      0.97(F 10 - 42.35)(1.17) + 40.69

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.953 0.951 0.923 0.898
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.5 46.3 50.1 48.7 46.6 46.9 47.1 51.0 51.1 47.1 43.5 47.8 48.1 45.6 48.4
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10 -1.8 -1.3 -0.3 -0.9  0.2 -0.6 -0.9 -1.3 -0.1 -2.0 -2.7 -2.4 -0.5 -0.8 -0.9
S-  7  2.7  4.3  4.8  5.6  4.0  4.3  4.9  4.5  5.2  4.5  3.4  4.8  5.5  4.4  4.0
S-  9  3.6  4.9  6.4  4.6  4.7  4.9  5.0  4.8  5.9  3.9  3.6  4.2  5.9  5.8  5.1
S- 13 -4.6 -5.0 -3.7 -5.6 -3.4 -4.2 -5.1 -4.4 -3.7 -5.4 -5.5 -6.2 -4.5 -4.4 -5.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.10-1.32-1.02-1.06-0.84-1.34 47.08 48.40-1.31 47.59 48.67-1.09   0.23
      7  4.44 4.14 4.64 4.54 4.38 4.52       42.80 4.28       43.14 4.45   0.17
      9  4.96 5.02 4.76 5.11 4.97 4.92       42.19 4.89       42.70 4.89   0.00
     13 -4.87-4.93-5.05-4.85-4.58-4.99       52.13-5.05       52.32-4.73   0.32
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.12  1.97                   2.05  1.95 1.05  2.02  1.80 1.12   1.07
      7         1.89                         1.67 1.23        1.66 1.21   0.99
      9         2.04                         2.10 0.97        1.69 1.19   1.23
     13         1.96                         2.04 1.00        1.92 1.05   1.05
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.98(F 10 - 48.67)(1.12) + 47.59      0.98(F  7 - 43.14)(1.21) + 47.59

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.942 0.936 0.912 0.892
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.6 53.2 59.2 57.9 56.0 55.5 54.8 56.7 59.8 53.7 53.6 55.4 57.3 54.5 54.9
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
S- 10 -1.9 -1.1  0.0  0.2  0.0 -0.2 -0.4 -1.2 -0.1 -1.4 -2.1 -1.8  0.0 -0.4 -0.2
S-  7  2.3  4.0  4.4  4.2  3.2  3.6  4.0  3.8  4.3  3.7  2.7  3.5  4.9  4.5  4.1
S-  9  3.8  4.9  5.5  5.2  4.0  4.5  4.8  4.5  4.7  3.7  3.8  4.9  5.7  5.3  6.1
S- 13 -4.5 -4.8 -2.6 -3.3 -3.4 -3.5 -3.8 -4.3 -3.0 -4.3 -4.3 -5.0 -4.2 -4.0 -4.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.49-0.65-0.21-0.34-0.48-0.86 56.22 56.76-0.55 55.73 56.44-0.71  -0.17
      7  4.11 4.13 4.55 4.11 3.78 3.95       52.01 4.21       51.92 3.80  -0.41
      9  4.91 5.13 4.78 4.99 4.74 4.88       51.18 5.04       50.97 4.76  -0.28
     13 -3.88-3.99-3.91-3.65-3.78-4.14       60.19-3.97       59.67-3.94   0.03
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.76  1.52                   1.75  1.54 1.14  2.00  1.62 1.24   1.09
      7         1.59                         1.43 1.22        1.74 1.15   0.95
      9         1.68                         1.70 1.02        1.83 1.09   1.07
     13         1.53                         1.59 1.10        1.57 1.28   1.16
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 56.44)(1.24) + 55.73      0.97(F  7 - 51.92)(1.15) + 55.73

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9   8    0.935 0.920 0.913 0.894
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 62.0 64.2 66.4 66.5 65.0 64.1 64.1 63.8 68.2 61.5 64.3 65.2 64.4 65.5 62.2
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd  8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7
S- 10 -1.1 -0.4 -0.3 -0.2 -0.3  0.3 -0.5 -1.3  0.3 -1.2 -1.1 -1.1 -0.6  0.2  0.5
S-  7  1.9  3.2  3.6  3.4  2.7  3.1  2.9  2.5  3.6  2.5  2.5  2.2  3.4  4.2  3.1
S-  9  4.0  4.6  5.2  4.7  4.0  4.8  5.6  4.4  4.5  3.6  4.3  4.6  4.6  5.2  6.1
S-  8  6.9  8.4  8.8  8.0  6.2  7.5  8.5  7.1  7.2  6.2  6.8  7.6  8.0  8.1  7.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.17-0.26 0.23-0.03-0.43-0.43 65.46 65.60-0.14 64.49 64.96-0.46  -0.33
      7  3.39 3.60 3.74 3.38 3.09 3.07       61.88 3.58       61.50 2.99  -0.59
      9  4.85 4.96 4.77 5.01 4.77 4.70       60.56 4.90       59.81 4.69  -0.21
      8  7.84 7.94 7.98 7.94 7.83 7.34       57.52 7.94       56.97 7.52  -0.42
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.48  1.42                   1.42  1.39 1.02  1.72  1.58 1.09   1.07
      7         1.33                         1.27 1.11        1.46 1.18   1.06
      9         1.51                         1.56 0.91        1.75 0.98   1.08
      8         1.42                         1.45 0.98        1.62 1.06   1.09
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 64.96)(1.09) + 64.49      0.96(F  7 - 61.50)(1.18) + 64.49

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9   7  38  10    0.890 0.877 0.870 0.861
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.5 70.3 70.7 73.3 74.1 71.6 70.7 70.5 74.4 68.7 72.4 70.1 71.4 71.3 70.1
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
S-  9  4.3  4.1  4.1  4.7  4.5  4.4  4.3  4.1  4.0  3.6  4.1  3.4  4.2  4.7  5.6
S-  7  1.5  1.7  1.6  2.2  3.0  1.6  1.6  1.6  2.2  1.8  1.9  0.3  1.9  3.2  2.6
S- 38  1.3  1.8  1.4  1.5  1.8  1.6  2.6  1.8  1.4  1.4  2.0  1.1  1.7  1.8  3.0
S- 10 -0.9 -1.2 -1.1 -0.7  0.1  0.3 -1.1 -1.7 -0.3 -1.4 -1.5 -2.2 -0.8 -0.4  0.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.56 4.83 4.84 4.43 4.37 4.24 72.16 67.31 4.85 71.32 67.04 4.28  -0.57
      7  2.35 2.86 2.72 2.11 1.97 1.98       69.39 2.77       69.42 1.90  -0.87
     38  1.81 1.72 2.16 1.64 1.74 1.78       70.33 1.83       69.57 1.75  -0.08
     10 -0.33-0.13 0.30-0.36-0.74-0.88       72.15 0.02       72.15-0.83  -0.84
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.48  1.42                   1.33  1.45 0.91  1.55  1.53 1.01   1.11
      7         1.20                         1.07 1.23        1.38 1.12   0.91
     38         1.56                         1.61 0.82        1.65 0.94   1.14
     10         1.30                         1.15 1.15        1.40 1.11   0.96
Suggested regression eqns from two most closely related CDs (  9 and   7): 
          0.94(F  9 - 67.04)(1.01) + 71.32      0.94(F  7 - 69.42)(1.12) + 71.32

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   6   9  38    0.780 0.779 0.771 0.766
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.1 73.6 72.9 75.4 77.7 76.5 74.3 74.0 75.9 72.4 75.7 73.3 75.7 74.9 73.9
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
S-  7  0.8  0.5  0.9  2.0  3.1  1.6  1.1  0.8  1.2  1.8  1.4 -0.7  1.3  2.6  1.8
S-  6  2.2  2.8  4.0  4.6  5.3  3.6  3.6  4.2  2.9  4.4  3.8  2.3  2.3  4.4  4.5
S-  9  3.6  3.1  3.8  4.4  5.0  4.4  3.5  3.7  3.9  3.9  3.6  2.1  3.3  5.1  4.8
S- 38 -0.2  0.3  0.9  1.3  3.0  1.7  1.4  1.5  1.5  2.1  1.4 -0.1  0.4  2.5  2.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.81 2.43 2.12 1.60 1.43 1.34 75.41 73.07 2.34 74.76 73.42 1.34  -1.00
      6  4.09 4.38 4.54 3.97 3.86 3.54       70.99 4.42       71.09 3.67  -0.75
      9  4.43 4.84 4.97 4.34 4.01 3.82       70.51 4.90       70.87 3.89  -1.01
     38  1.62 1.61 2.33 1.44 1.25 1.42       73.63 1.78       73.43 1.33  -0.45
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.32  1.05                   1.06  0.92 1.16  1.40  1.18 1.18   1.02
      6         1.34                         1.30 0.81        1.57 0.89   1.09
      9         1.17                         1.06 1.00        1.25 1.12   1.12
     38         1.33                         1.30 0.82        1.39 1.00   1.23
Suggested regression eqns from two most closely related CDs (  7 and   6): 
          0.88(F  7 - 73.42)(1.18) + 74.76      0.88(F  6 - 71.09)(0.89) + 74.76

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  38  39    0.823 0.818 0.800 0.796
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.1 71.0 72.6 73.3 75.8 74.2 71.8 72.6 74.1 72.0 74.3 71.4 74.5 72.6 72.9
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0
S- 10 -1.3 -1.6 -0.9 -1.6 -0.5 -0.4 -2.2 -1.7 -1.3 -1.9 -2.1 -2.2 -0.6 -0.6 -0.5
S-  7  0.8  0.6  0.9  1.6  3.0  1.3  0.5  1.4  1.5  1.9  1.2  0.2  1.4  1.9  2.0
S- 38 -0.2  0.6  1.6  0.3  3.0  0.8  0.5  1.1  1.7  2.1  1.5  1.0  1.2  2.2  2.2
S- 39 -2.8 -1.5 -0.4 -1.8  0.7 -1.0 -1.0 -0.9 -0.8  0.1 -0.5 -0.7 -0.6  0.3 -0.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.56 0.04 0.14-0.77-1.15-1.31 74.38 74.33 0.05 73.14 74.43-1.29  -1.33
      7  1.92 2.64 2.25 1.85 1.29 1.44       71.85 2.53       71.81 1.33  -1.20
     38  1.74 1.81 2.45 1.68 1.03 1.71       72.45 1.94       71.83 1.31  -0.63
     39 -0.15 0.12 0.64-0.21-1.02-0.31       74.18 0.20       73.87-0.73  -0.94
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.52  1.24                   1.28  1.12 1.15  1.29  1.08 1.19   1.03
      7         1.19                         1.31 0.98        1.04 1.23   1.27
     38         1.54                         1.41 0.91        1.33 0.96   1.06
     39         1.60                         1.40 0.92        1.45 0.89   0.97
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.91(F 10 - 74.43)(1.19) + 73.14      0.90(F  7 - 71.81)(1.23) + 73.14

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   6  38    0.867 0.860 0.852 0.850
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.9 68.1 67.5 67.1 66.9 65.8 66.4 66.7 67.8 64.3 66.3 65.4 68.6 66.9 66.5
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1
cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0
S-  7  0.5  1.8  1.6  2.0  3.2  2.2  1.1  1.1  2.0  1.8  1.4  2.1  1.8  2.2  2.2
S- 10 -2.1 -1.2 -1.3 -1.5 -0.4 -0.3 -1.7 -1.8 -0.7 -1.9 -2.3 -1.0 -0.5 -0.4 -0.6
S-  6  2.4  4.5  4.0  3.5  5.7  4.6  4.4  4.3  4.0  4.3  4.4  3.9  4.4  4.3  5.4
S- 38 -0.7  1.3  1.4  1.0  3.0  1.8  1.7  1.5  1.9  1.6  1.9  1.5  2.1  2.1  2.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.36 2.96 2.74 2.28 1.76 1.92 68.31 65.38 2.93 66.75 64.95 1.80  -1.12
     10 -0.54 0.03 0.15-0.84-1.12-1.05       68.22 0.08       67.92-1.17  -1.25
      6  4.82 5.12 5.19 5.10 4.16 4.38       63.27 5.04       62.48 4.27  -0.77
     38  2.06 2.21 2.68 2.08 1.36 1.95       66.08 2.23       65.11 1.63  -0.60
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.62  1.41                   1.54  1.37 1.12  1.04  1.22 0.85   0.76
     10         1.42                         1.31 1.17        1.07 0.97   0.83
      6         1.60                         1.42 1.08        1.29 0.80   0.74
     38         1.65                         1.37 1.12        1.31 0.79   0.70
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.93(F  7 - 64.95)(0.85) + 66.75      0.93(F 10 - 67.92)(0.97) + 66.75

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    6   5   8  23    0.870 0.865 0.862 0.848
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.4 59.0 61.1 58.4 58.1 56.4 58.0 59.6 58.7 55.6 56.7 59.6 57.0 56.3 57.3
cd  6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3
cd  5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
cd 23 52.4 51.9 52.9 51.3 50.5 49.5 50.0 52.6 50.6 49.9 48.8 53.5 49.3 49.2 49.6
S-  6  3.2  5.9  5.2  4.5  5.6  5.6  5.9  5.3  5.9  3.8  5.1  5.6  6.0  5.5  5.9
S-  5  6.7  8.9  9.3  9.1  9.2  8.1  8.7  8.4  8.9  7.3  8.5  8.7  8.2  8.1  8.9
S-  8  6.2  8.2  7.8  7.9  8.4  7.7  7.5  7.2  8.1  6.2  6.8  8.5  7.1  6.8  7.8
S- 23  5.0  7.1  8.1  7.2  7.5  6.9  8.1  7.0  8.2  5.7  7.8  6.2  7.7  7.1  7.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      6  5.70 6.00 5.92 5.92 5.17 5.43 59.26 53.40 5.86 57.94 52.66 5.28  -0.58
      5  8.69 8.61 8.65 9.14 8.59 8.36       50.65 8.61       49.48 8.46  -0.15
      8  7.85 8.12 8.02 7.99 7.64 7.31       51.17 8.09       50.48 7.47  -0.63
     23  7.34 7.58 7.29 7.47 7.11 7.20       51.94 7.32       50.79 7.15  -0.17
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      6   1.61  1.73                   1.26  1.18 1.06  1.45  1.48 0.97   0.92
      5         1.65                         1.17 1.07        1.17 1.23   1.15
      8         1.60                         1.18 1.06        1.16 1.24   1.17
     23         1.78                         1.53 0.82        1.47 0.98   1.20
Suggested regression eqns from two most closely related CDs (  6 and   5): 
          0.93(F  6 - 52.66)(0.97) + 57.94      0.93(F  5 - 49.48)(1.23) + 57.94

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  39   9   7    0.906 0.904 0.899 0.896
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.9 52.5 49.8 48.3 48.5 47.3 44.6 51.1 50.0 46.0 46.0 51.8 46.0 47.3 48.1
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
cd 39 44.4 50.5 47.2 46.5 46.9 44.7 42.5 48.2 47.8 46.0 45.0 50.0 44.5 45.9 45.3
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
S- 38  1.7  3.1  2.4  2.2  3.1  3.5  3.3  2.9  3.3  1.2  1.8  3.1  3.4  2.1  3.7
S- 39  1.5  2.0  2.6  1.7  1.6  2.6  2.2  2.9  2.2  0.0  1.0  1.8  1.4  1.3  2.7
S-  9  3.7  4.8  4.0  3.8  5.0  6.0  5.3  4.4  5.5  3.2  3.1  5.5  4.9  4.6  5.8
S-  7  1.2  3.5  3.0  2.4  3.5  3.8  3.1  2.2  3.5  1.6  1.3  4.1  2.5  2.6  2.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38  2.94 3.30 3.33 2.79 2.55 2.68 48.70 45.35 3.35 48.21 45.48 2.73  -0.62
     39  2.00 2.49 2.22 1.82 1.85 1.49       46.31 2.39       46.37 1.83  -0.56
      9  5.02 5.47 5.41 4.84 4.61 4.66       43.22 5.48       43.56 4.64  -0.84
      7  3.10 3.38 3.60 2.97 2.79 2.64       45.16 3.54       45.46 2.75  -0.79
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.96  2.17                   1.33  1.48 0.89  2.31  2.20 1.05   1.17
     39         2.03                         1.38 0.96        2.09 1.11   1.15
      9         2.15                         1.54 0.86        2.26 1.02   1.19
      7         1.92                         1.48 0.89        1.99 1.16   1.30
Suggested regression eqns from two most closely related CDs ( 38 and  39): 
          0.95(F 38 - 45.48)(1.05) + 48.21      0.95(F 39 - 46.37)(1.11) + 48.21

Station#1857  CHARLOTTESVILLE/2 W , va  4159303    lat/lon 78.52   38.03    15M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38  10   7    0.927 0.923 0.922 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.1 41.4 42.0 39.4 41.3 43.8 39.7 44.1 42.8 40.3 36.5 45.6 37.3 39.6 40.4
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
S-  9  4.9  5.6  5.3  3.5  4.8  5.8  5.3  4.6  5.7  2.3  2.8  5.8  4.7  4.5  3.1
S- 38  3.7  4.2  3.9  1.8  2.6  3.2  3.2  3.1  3.8  0.9  1.7  4.1  3.1  2.6  1.0
S- 10 -2.0 -1.2 -2.3 -3.1 -0.8  0.4 -2.1 -1.9 -1.7 -4.0 -4.7 -0.8 -1.8 -2.2 -3.1
S-  7  3.0  3.6  3.7  2.5  4.2  5.0  3.8  3.8  3.7  1.3  1.5  3.7  3.5  2.6  0.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.94 5.30 5.30 4.92 4.82 4.12 40.77 35.43 5.34 40.82 36.24 4.58  -0.77
     38  3.07 3.15 3.43 3.28 2.88 2.43       37.37 3.40       37.97 2.85  -0.55
     10 -1.77-1.39-1.42-2.01-1.66-2.60       42.12-1.35       42.90-2.07  -0.73
      7  3.42 3.73 3.88 3.31 3.47 2.40       36.91 3.86       37.72 3.10  -0.76
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.40  2.64                   1.69  2.20 0.77  2.48  2.10 1.18   1.54
     38         2.70                         2.22 0.76        2.24 1.11   1.46
     10         2.36                         1.90 0.89        1.95 1.28   1.43
      7         2.43                         1.96 0.86        2.15 1.16   1.34
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.96(F  9 - 36.24)(1.18) + 40.82      0.96(F 38 - 37.97)(1.11) + 40.82

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 38.70 41.59 47.18 55.44 64.34 71.38 75.19 74.24 69.37 58.42 48.31 41.68
1952 41.24 43.34 47.98 55.96 66.44 73.92 76.65 73.19 65.21 56.58 47.30 42.86
1953 41.38 44.34 49.29 58.38 67.32 74.12 75.38 73.50 67.99 58.98 49.25 41.81
1954 40.52 43.19 50.71 56.38 65.07 70.50 75.55 75.50 70.29 59.53 47.50 38.90
1955 37.35 41.79 50.01 59.00 65.20 71.46 74.81 75.27 68.24 57.88 46.12 38.86
1956 37.55 41.35 47.18 54.68 63.49 71.11 74.68 73.22 67.19 57.36 50.70 43.19
1957 42.15 41.38 48.94 56.98 66.43 72.05 74.18 72.90 65.20 56.76 47.38 40.97
1958 35.91 36.38 43.87 54.34 64.09 71.54 75.11 73.92 66.74 58.45 46.91 39.46
1959 36.21 40.64 48.55 57.54 66.21 72.03 75.17 74.09 68.63 58.59 49.46 42.51
1960 39.29 37.10 44.28 53.01 65.64 70.77 75.22 74.03 68.59 59.07 47.42 38.43
1961 36.06 41.42 47.47 54.35 61.39 69.67 73.97 74.26 68.35 60.35 49.30 41.40
1962 37.47 39.19 46.06 56.19 65.56 71.69 73.12 71.43 67.23 57.74 47.50 38.12
1963 33.86 38.58 47.39 57.72 65.15 70.66 74.07 72.31 66.89 58.48 47.07 39.45
1964 35.43 40.59 47.25 56.91 65.71 71.96 74.34 72.07 64.60 57.24 48.82 43.18
1965 38.78 39.50 45.68 56.40 65.57 72.19 73.78 73.67 67.32 58.70 49.04 41.25
1966 37.46 39.34 46.09 54.86 62.96 71.23 74.42 72.93 65.31 56.86 47.20 42.29
1967 37.87 41.17 47.37 55.52 63.15 68.28 72.66 70.48 64.04 54.32 47.33 39.65
1968 36.27 38.56 46.49 55.87 63.30 70.19 75.14 73.94 67.99 58.49 47.88 39.19
1969 35.83 37.87 46.19 55.05 65.50 72.04 74.76 72.65 65.65 56.32 45.85 37.27
1970 34.87 37.54 46.40 55.75 65.75 71.99 74.54 74.50 68.96 60.07 49.37 40.84
1971 37.49 38.54 44.67 52.68 62.58 70.10 73.81 72.67 68.49 60.08 52.22 44.62
1972 40.90 41.32 46.16 55.07 61.79 68.48 72.34 72.88 66.06 56.33 47.50 41.71
1973 38.97 41.81 47.88 56.15 63.98 70.86 75.28 74.19 68.46 59.97 49.20 44.44
1974 40.94 44.51 48.22 56.24 62.27 68.08 70.41 69.60 62.95 54.85 46.00 40.75
1975 38.80 40.61 44.80 52.95 61.45 69.00 72.14 71.16 66.79 58.31 48.92 40.28
1976 38.30 41.60 48.92 54.22 61.43 66.82 70.92 68.84 61.60 51.63 42.15 34.06
1977 32.12 37.23 47.41 56.75 63.62 70.64 74.20 74.18 66.05 56.76 45.11 36.74
1978 30.77 32.92 41.61 51.65 61.41 67.48 72.47 71.71 64.51 56.13 46.58 40.99
1979 34.29 36.66 43.45 53.90 60.67 66.44 70.27 69.96 63.59 55.43 46.38 40.71
1980 35.49 36.27 42.24 52.14 61.11 68.28 73.03 74.15 66.83 55.48 43.84 35.66
1981 33.85 35.51 45.30 52.44 63.46 68.57 71.96 68.77 61.02 53.19 43.23 35.30
1982 33.05 36.39 44.47 53.39 61.83 69.25 70.61 69.11 63.10 55.64 48.29 41.04
1983 37.47 38.47 44.15 52.08 60.28 68.37 73.23 71.90 65.21 55.17 44.50 36.21
1984 34.88 37.55 44.53 51.14 60.94 67.44 71.21 68.34 65.76 56.13 50.21 39.40
1985 37.25 37.97 46.99 55.93 63.69 68.64 71.09 69.88 64.71 58.67 47.71 39.67
1986 34.72 38.12 46.00 53.84 63.76 70.34 73.24 71.19 64.72 56.78 46.75 38.40
1987 34.28 36.56 42.50 52.46 62.17 71.13 75.07 73.74 64.03 54.34 44.69 37.83
1988 34.03 35.81 44.06 52.64 60.66 68.06 72.83 71.58 62.83 51.93 42.23 38.98
1989 37.39 40.91 45.45 52.27 61.43 68.84 73.02 71.05 64.60 55.84 42.88 38.18
1990 37.42 44.31 48.71 54.91 61.82 68.84 72.61 71.65 65.37 56.86 48.72 41.64
1991 39.03 41.05 47.80 57.00 65.14 72.12 73.90 72.30 64.80 55.00 46.27 40.74
1992 39.62 40.91 45.91 51.72 59.17 66.58 70.42 70.06 62.19 53.97 43.83 38.74
1993 35.32 36.80 41.65 51.84 62.37 71.58 74.70 73.89 65.17 55.27 43.97 36.23
1994 33.71 37.46 46.62 53.71 62.95 69.45 73.77 70.81 62.99 55.05 47.56 42.05
1995 38.05 40.06 45.89 54.59 62.14 69.19 73.58 72.09 65.78 54.27 43.77 35.92
1996 34.31 36.28 42.95 52.03 62.40 69.18 72.14 70.51 64.42 53.88 45.03 38.26
1997 38.34 41.18 46.41 51.67 58.26 66.18 71.00 70.28 63.50 53.84 44.49 38.05

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10   9  38    0.891 0.889 0.877 0.876
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 37.5 34.9 37.3 34.7 34.3 34.0 37.4 37.4 39.0 39.6 35.3 33.7 38.0 34.3 38.3
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
S- 13 -5.8 -6.9 -6.2 -7.8 -7.2 -6.9 -6.9 -7.2 -6.9 -6.4 -7.6 -7.4 -5.6 -6.5 -6.4
S- 10 -3.2 -3.6 -3.0 -4.2 -4.1 -4.1 -3.3 -3.5 -4.4 -3.1 -5.0 -3.8 -3.4 -2.9 -3.5
S-  9  2.3  3.5  4.4  3.2  1.9  1.9  2.9  3.7  2.7  3.9  1.4  3.4  3.9  3.7  2.9
S- 38 -0.6  2.4  3.6  1.2 -0.7  0.1  0.8  1.6  1.4  1.4 -0.2  1.6  1.9  1.8  1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -5.68-4.89-4.47-5.75-6.92-6.67 38.13 42.99-4.86 36.39 43.16-6.77  -1.91
     10 -2.36-1.34-1.05-2.49-3.61-3.74       39.40-1.27       40.07-3.69  -2.42
      9  4.52 5.26 6.01 4.75 3.05 3.13       32.62 5.51       33.35 3.04  -2.47
     38  2.52 2.95 3.95 2.99 1.05 1.27       34.82 3.31       35.24 1.15  -2.16
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.56  2.54                   2.37  2.78 0.85  1.93  1.66 1.16   1.36
     10         2.48                         2.49 0.95        1.82 1.06   1.11
      9         2.89                         2.99 0.79        1.85 1.04   1.32
     38         3.07                         3.13 0.76        2.04 0.94   1.25
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.94(F 13 - 43.16)(1.16) + 36.39      0.94(F 10 - 40.07)(1.06) + 36.39

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  38    0.893 0.872 0.864 0.859
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.5 37.5 38.0 38.1 36.6 35.8 40.9 44.3 41.0 40.9 36.8 37.5 40.1 36.3 41.2
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10 -3.3 -3.1 -3.0 -4.4 -3.7 -4.0 -2.6 -3.9 -3.9 -2.7 -4.8 -3.3 -2.9 -3.1 -3.0
S- 13 -5.9 -7.5 -6.7 -8.6 -7.3 -7.3 -6.8 -7.1 -7.0 -6.2 -8.0 -7.9 -5.9 -7.1 -7.7
S-  9  2.4  3.7  4.5  2.3  1.2  1.9  2.7  2.3  3.0  3.9  1.6  4.3  4.0  3.5  3.3
S- 38 -0.3  1.7  3.2 -0.5 -2.2 -0.1  0.5  0.1  1.0  1.3 -0.3  2.5  1.8  1.5  1.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.21-1.21-0.99-2.27-3.53-3.40 40.69 41.89-1.20 38.90 42.35-3.45  -2.25
     13 -6.01-5.10-4.74-6.10-7.32-7.12       45.76-5.07       46.03-7.13  -2.06
      9  4.43 5.47 5.65 4.65 2.70 3.37       35.21 5.48       35.92 2.97  -2.51
     38  2.15 2.95 3.41 2.57 0.28 1.30       37.64 3.05       38.13 0.76  -2.29
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.61  2.45                   2.15  2.14 1.01  2.31  2.25 1.03   1.02
     13         2.57                         2.47 0.87        2.21 1.05   1.20
      9         2.79                         2.46 0.88        2.36 0.98   1.12
     38         3.03                         2.71 0.80        2.54 0.91   1.15
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.95(F 10 - 42.35)(1.03) + 38.90      0.93(F 13 - 46.03)(1.05) + 38.90

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  38   9  13    0.811 0.794 0.790 0.789
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.2 44.5 47.0 46.0 42.5 44.1 45.5 48.7 47.8 45.9 41.7 46.6 45.9 43.0 46.4
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10 -3.2 -3.1 -3.4 -3.5 -3.8 -3.5 -2.5 -3.6 -3.5 -3.2 -4.5 -3.6 -2.7 -3.4 -3.0
S- 38 -0.3  0.5  1.1 -1.0 -3.0  0.2  0.6  0.4 -0.1 -0.3 -0.4  1.1  0.8  1.4  0.6
S-  9  2.3  3.1  3.3  1.9  0.6  2.1  3.3  2.5  2.6  2.7  1.8  3.1  3.7  3.1  3.0
S- 13 -5.9 -6.8 -6.7 -8.2 -7.5 -7.0 -6.8 -6.7 -7.0 -6.6 -7.4 -7.3 -6.7 -7.1 -7.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.06-1.07-0.54-2.39-3.31-3.41 47.46 48.40-0.94 45.31 48.67-3.36  -2.43
     38  1.37 2.64 2.48 1.12-0.12 0.45       44.93 2.53       45.19 0.11  -2.41
      9  4.00 5.27 5.25 3.78 2.50 2.86       42.19 5.27       42.70 2.61  -2.66
     13 -5.84-4.69-4.57-6.18-7.05-7.05       52.13-4.67       52.32-7.01  -2.34
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.13  1.97                   1.87  1.95 0.96  1.92  1.80 1.07   1.11
     38         2.21                         2.29 0.81        1.81 1.06   1.30
      9         2.04                         2.10 0.89        1.69 1.13   1.28
     13         1.96                         2.04 0.92        1.92 1.00   1.09
Suggested regression eqns from two most closely related CDs ( 10 and  38): 
          0.90(F 10 - 48.67)(1.07) + 45.31      0.89(F 38 - 45.19)(1.06) + 45.31

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  38  10  11    0.738 0.728 0.726 0.722
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 52.1 51.1 55.9 53.8 52.5 52.6 52.3 54.9 57.0 51.7 51.8 53.7 54.6 52.0 51.7
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1
S- 13 -6.0 -6.8 -5.9 -7.3 -6.9 -6.3 -6.3 -6.0 -5.8 -6.2 -6.1 -6.7 -6.9 -6.5 -7.3
S- 38  0.0  0.8 -0.5 -1.5 -3.0 -0.6 -0.7  0.7 -1.0 -1.1  0.0  1.0  0.2  0.5  0.4
S- 10 -3.4 -3.2 -3.2 -3.8 -3.5 -3.1 -3.0 -3.0 -2.9 -3.4 -3.8 -3.5 -2.7 -2.9 -3.4
S- 11 -0.4 -1.0 -0.1 -1.7 -2.6 -1.1 -1.5 -0.5 -0.7 -1.1 -0.5 -0.3 -1.0 -0.8 -1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -5.26-4.09-3.91-5.63-6.55-6.51 56.22 60.19-3.97 53.19 59.67-6.48  -2.51
     38  0.81 2.25 1.91 0.34-0.71 0.01       54.02 2.19       53.51-0.32  -2.52
     10 -1.87-0.75-0.21-2.33-3.25-3.23       56.76-0.55       56.44-3.25  -2.70
     11  0.19 1.60 1.23-0.14-1.22-0.82       54.68 1.54       54.16-0.97  -2.50
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.02  1.53                   1.59  1.59 1.00  1.68  1.57 1.07   1.07
     38         1.82                         1.74 0.91        2.05 0.82   0.90
     10         1.52                         1.54 1.03        1.62 1.04   1.00
     11         1.54                         1.66 0.96        1.58 1.07   1.12
Suggested regression eqns from two most closely related CDs ( 13 and  38): 
          0.86(F 13 - 59.67)(1.07) + 53.19      0.85(F 38 - 53.51)(0.82) + 53.19

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  38   9    0.805 0.797 0.791 0.782
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 60.3 60.9 63.7 63.8 62.2 60.7 61.4 61.8 65.1 59.2 62.4 63.0 62.1 62.4 58.3
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
S- 11  0.3 -0.5  0.5 -0.5 -1.2 -0.7  0.9 -0.3  0.1 -1.0  0.5  0.2 -0.2 -0.1 -0.3
S- 13 -5.1 -5.7 -5.3 -6.2 -5.9 -5.9 -5.2 -6.0 -4.8 -6.0 -5.1 -5.4 -6.0 -5.7 -5.6
S- 38  0.0 -0.9 -0.2 -0.9 -2.2 -1.5  0.6  0.2 -1.6 -1.3  0.7  0.1 -0.4  0.0 -0.2
S-  9  2.3  1.4  2.5  2.0  1.1  1.3  3.0  2.5  1.4  1.2  2.4  2.3  2.4  2.1  2.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  0.77 1.91 1.76 0.29-0.27-0.13 65.17 63.26 1.91 61.81 61.96-0.15  -2.06
     13 -4.58-3.68-3.16-5.09-5.74-5.50       68.64-3.46       67.41-5.60  -2.13
     38  0.46 1.61 1.49-0.11-0.52-0.40       63.55 1.63       62.31-0.50  -2.13
      9  3.21 4.55 4.40 2.66 2.09 1.99       60.56 4.61       59.81 2.00  -2.61
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.06  1.51                   1.38  1.45 0.96  1.73  1.64 1.05   1.10
     13         1.50                         1.36 1.02        1.66 1.04   1.02
     38         1.68                         1.64 0.84        1.97 0.88   1.04
      9         1.51                         1.56 0.89        1.75 0.99   1.11
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.90(F 11 - 61.96)(1.05) + 61.81      0.89(F 13 - 67.41)(1.04) + 61.81

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  11   9  13    0.745 0.743 0.739 0.713
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.4 67.4 68.6 70.3 71.1 68.1 68.8 68.8 72.1 66.6 71.6 69.4 69.2 69.2 66.2
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
S- 38 -0.8 -1.0 -0.6 -1.4 -1.2 -1.9  0.7  0.1 -0.9 -0.7  1.2  0.5 -0.6 -0.2 -0.9
S- 11  0.3 -0.2  0.1 -0.5  0.0  0.1  1.6  0.2  1.2 -0.2  1.2  1.5  0.5  0.1 -0.3
S-  9  2.2  1.3  2.0  1.8  1.5  0.9  2.5  2.5  1.7  1.5  3.3  2.8  2.0  2.7  1.7
S- 13 -5.3 -5.6 -5.2 -6.5 -4.7 -4.8 -4.1 -5.7 -3.8 -5.6 -4.5 -4.1 -5.1 -5.5 -5.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38  0.30 1.19 1.56-0.37-0.80-0.23 71.67 70.33 1.34 69.06 69.57-0.51  -1.85
     11  1.23 2.12 2.52 0.73 0.03 0.56       69.39 2.28       68.69 0.37  -1.90
      9  3.06 4.30 4.24 2.43 1.84 2.23       67.31 4.36       67.04 2.02  -2.34
     13 -4.00-3.19-2.46-4.43-5.34-4.84       74.61-2.94       74.11-5.05  -2.11
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.90  1.56                   1.14  1.61 0.70  1.65  1.65 1.00   1.41
     11         1.47                         1.43 0.79        1.45 1.13   1.43
      9         1.42                         1.45 0.78        1.53 1.08   1.38
     13         1.48                         1.32 0.86        1.49 1.11   1.28
Suggested regression eqns from two most closely related CDs ( 38 and  11): 
          0.86(F 38 - 69.57)(1.00) + 69.06      0.86(F 11 - 68.69)(1.13) + 69.06

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  38  11   9    0.640 0.637 0.635 0.635
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.2 71.2 71.1 73.2 75.1 72.8 73.0 72.6 73.9 70.4 74.7 73.8 73.6 72.1 71.0
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
S- 10 -2.9 -3.9 -3.3 -3.4 -2.5 -3.2 -2.9 -3.2 -2.9 -3.6 -2.5 -2.5 -2.9 -2.6 -3.0
S- 38 -2.0 -2.1 -0.9 -0.8  0.3 -2.0  0.2  0.1 -0.5  0.1  0.4  0.3 -1.7 -0.2 -0.8
S- 11  0.4 -0.5 -0.1 -0.3  1.4  0.3  1.5  0.5  1.3  0.2  0.8  1.7  0.5  0.7  0.3
S-  9  1.8  0.7  2.0  2.2  2.3  0.8  2.2  2.3  1.9  1.9  2.6  2.5  1.2  2.4  1.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.93-0.78-0.64-2.43-3.24-2.86 74.75 75.44-0.69 72.79 75.81-3.02  -2.33
     38  0.18 0.94 1.50-0.35-0.97-0.35       73.63 1.12       73.43-0.64  -1.76
     11  1.40 2.19 2.72 1.04 0.09 0.78       72.39 2.36       72.21 0.57  -1.78
      9  3.00 4.17 4.14 2.55 1.79 2.05       70.51 4.24       70.87 1.92  -2.32
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.60  1.07                   0.84  0.93 0.90  1.34  1.08 1.24   1.38
     38         1.33                         1.30 0.64        1.39 0.96   1.49
     11         1.21                         1.17 0.72        1.06 1.26   1.76
      9         1.17                         1.06 0.79        1.25 1.07   1.36
Suggested regression eqns from two most closely related CDs ( 10 and  38): 
          0.80(F 10 - 75.81)(1.24) + 72.79      0.80(F 38 - 73.43)(0.96) + 72.79

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  13  11  10    0.727 0.722 0.718 0.715
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.9 68.3 69.9 71.2 73.7 71.6 71.1 71.7 72.3 70.1 73.9 70.8 72.1 70.5 70.3
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
S- 38 -2.4 -2.1 -1.1 -1.8  0.9 -1.8 -0.3  0.1 -0.1  0.2  1.1  0.4 -1.2  0.1 -0.4
S- 13 -5.3 -5.8 -4.7 -6.0 -3.9 -4.5 -3.9 -5.3 -3.9 -5.4 -4.4 -3.6 -4.5 -4.6 -5.1
S- 11  0.0 -0.8  0.2 -1.0  1.8  0.2  0.9  0.5  0.8 -0.1  1.1  1.4  0.2  0.8  0.1
S- 10 -3.5 -4.2 -3.6 -3.7 -2.5 -3.0 -3.0 -2.6 -3.1 -3.8 -2.5 -2.8 -3.1 -2.6 -3.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38  0.27 0.94 1.59-0.06-1.19 0.01 73.57 72.45 1.13 71.28 71.83-0.55  -1.68
     13 -3.69-2.79-2.33-3.97-5.09-4.50       76.22-2.65       76.00-4.72  -2.07
     11  1.31 2.13 2.65 1.01-0.06 0.63       71.32 2.25       70.88 0.41  -1.84
     10 -2.03-0.83-0.71-2.51-3.38-3.01       74.33-0.76       74.43-3.15  -2.38
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.83  1.54                   1.07  1.41 0.76  1.39  1.33 1.05   1.37
     13         1.32                         1.12 0.96        1.23 1.13   1.18
     11         1.34                         1.14 0.94        1.11 1.25   1.34
     10         1.24                         1.12 0.96        1.08 1.29   1.34
Suggested regression eqns from two most closely related CDs ( 38 and  13): 
          0.85(F 38 - 71.83)(1.05) + 71.28      0.85(F 13 - 76.00)(1.13) + 71.28

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  50  38    0.816 0.805 0.803 0.803
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 65.2 65.8 64.7 64.7 64.0 62.8 64.6 65.4 64.8 62.2 65.2 63.0 65.8 64.4 63.5
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd 50 69.8 69.2 68.6 69.1 67.0 67.1 67.2 68.7 68.8 65.7 67.6 66.8 68.8 67.0 67.1
cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0
S- 13 -5.5 -5.3 -5.6 -5.8 -4.9 -5.4 -4.7 -5.8 -4.8 -5.7 -5.3 -4.9 -4.8 -4.3 -5.5
S- 11 -0.5 -0.5 -0.9 -1.1  0.5 -0.3  0.4  0.1 -0.4 -0.9  0.2 -0.4  0.2  0.3 -0.4
S- 50 -4.6 -3.4 -3.9 -4.4 -3.0 -4.2 -2.6 -3.3 -4.0 -3.5 -2.4 -3.8 -3.0 -2.6 -3.6
S- 38 -2.4 -1.1 -1.4 -1.4  0.1 -1.2 -0.2  0.2 -1.0 -0.5  0.8 -0.8 -0.7 -0.3 -0.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -4.02-2.95-2.63-4.29-5.50-5.05 67.46 70.25-2.79 64.41 69.62-5.22  -2.43
     11  0.91 1.96 2.29 0.69-0.51-0.20       65.38 2.07       64.65-0.24  -2.31
     50 -2.29-1.38-0.98-2.28-3.81-3.28       68.78-1.32       67.90-3.50  -2.18
     38  0.35 1.30 1.62 0.18-1.14-0.45       66.08 1.38       65.11-0.71  -2.09
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.16  1.44                   1.53  1.41 1.09  1.05  1.10 0.96   0.88
     11         1.43                         1.27 1.21        1.04 1.01   0.84
     50         1.61                         1.45 1.06        1.12 0.94   0.89
     38         1.65                         1.37 1.12        1.31 0.80   0.72
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.90(F 13 - 69.62)(0.96) + 64.41      0.90(F 11 - 64.65)(1.01) + 64.41

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    5   8   6  13    0.815 0.794 0.773 0.771
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 55.2 56.1 58.7 56.8 54.3 51.9 55.8 56.9 55.0 54.0 55.3 55.0 54.3 53.9 53.8
cd  5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
cd  6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
S-  5  4.5  6.1  6.9  7.4  5.5  3.7  6.5  5.6  5.1  5.6  7.0  4.1  5.5  5.7  5.5
S-  8  4.0  5.3  5.4  6.2  4.7  3.3  5.3  4.4  4.4  4.5  5.4  3.9  4.3  4.4  4.3
S-  6  1.0  3.0  2.8  2.8  1.8  1.2  3.7  2.6  2.2  2.2  3.7  1.1  3.3  3.2  2.5
S- 13 -5.8 -5.4 -6.3 -6.3 -5.5 -6.9 -5.3 -6.0 -5.4 -6.3 -6.2 -5.8 -5.5 -5.1 -5.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      5  6.76 7.54 7.57 7.15 5.66 5.51 58.28 50.65 7.63 55.13 49.48 5.65  -1.98
      8  5.92 7.05 6.94 6.00 4.72 4.46       51.17 7.11       50.48 4.66  -2.45
      6  3.78 4.93 4.84 3.93 2.24 2.58       53.40 4.87       52.66 2.47  -2.40
     13 -4.40-3.27-2.85-4.66-5.89-5.70       61.38-3.10       60.96-5.82  -2.72
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      5   2.14  1.65                   1.00  1.17 0.85  1.55  1.17 1.32   1.55
      8         1.60                         1.18 0.84        1.16 1.33   1.58
      6         1.73                         1.18 0.84        1.48 1.04   1.24
     13         1.52                         0.79 1.25        1.60 0.97   0.77
Suggested regression eqns from two most closely related CDs (  5 and   8): 
          0.90(F  5 - 49.48)(1.32) + 55.13      0.89(F  8 - 50.48)(1.33) + 55.13

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  38   9  11    0.805 0.777 0.777 0.776
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.5 50.2 47.7 46.8 44.7 42.2 42.9 48.7 46.3 43.8 44.0 47.6 43.8 45.0 44.5
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
S- 13 -6.2 -5.3 -7.1 -6.6 -6.1 -7.4 -6.4 -6.1 -6.1 -6.8 -6.8 -5.9 -5.9 -5.4 -5.4
S- 38  0.2  0.8  0.3  0.6 -0.8 -1.5  1.6  0.5 -0.3 -0.9 -0.2 -1.2  1.2 -0.1  0.1
S-  9  2.3  2.5  1.9  2.3  1.2  1.0  3.5  2.0  1.8  1.0  1.1  1.2  2.7  2.4  2.2
S- 11 -0.8 -0.2 -1.6 -1.9 -1.3 -1.8  0.1 -0.4 -0.9 -1.5 -1.7 -1.4 -0.1 -0.8 -0.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -4.79-3.76-3.26-4.97-6.28-6.06 48.14 51.66-3.52 45.51 51.75-6.24  -2.72
     38  1.39 2.61 2.94 1.16-0.01-0.20       45.35 2.79       45.48 0.03  -2.76
      9  3.47 4.79 5.02 3.21 2.05 1.78       43.22 4.92       43.56 1.94  -2.98
     11  0.56 1.77 2.10 0.37-0.94-0.93       46.20 1.94       46.46-0.96  -2.89
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.28  1.84                   1.20  1.31 0.91  2.20  2.05 1.07   1.17
     38         2.17                         1.48 0.81        2.20 1.00   1.23
      9         2.15                         1.54 0.78        2.26 0.97   1.25
     11         2.00                         1.44 0.83        2.26 0.97   1.17
Suggested regression eqns from two most closely related CDs ( 13 and  38): 
          0.90(F 13 - 51.75)(1.07) + 45.51      0.88(F 38 - 45.48)(1.00) + 45.51

Station#1858  CHATHAM             , va  4161402    lat/lon 79.32   36.87    35M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11   9    0.862 0.827 0.822 0.807
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 36.2 39.4 39.7 38.4 37.8 39.0 38.2 41.6 40.7 38.7 36.2 42.0 35.9 38.3 38.0
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
S- 13 -7.0 -5.7 -6.9 -7.0 -6.5 -7.4 -6.7 -6.3 -5.7 -7.4 -7.0 -5.7 -5.9 -6.3 -6.8
S- 10 -3.9 -3.2 -4.6 -4.1 -4.2 -4.5 -3.5 -4.4 -3.8 -5.5 -5.0 -4.3 -3.2 -3.5 -5.5
S- 11 -1.1  0.6 -0.5 -2.4 -1.6 -2.2  0.0 -1.4 -0.1 -2.5 -1.3 -0.7 -0.6 -1.0 -1.6
S-  9  3.0  3.6  3.0  2.5  1.4  0.9  3.8  2.1  3.6  0.7  2.5  2.2  3.3  3.1  0.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -5.25-4.52-3.89-5.24-6.56-6.39 40.80 45.11-4.31 38.69 45.23-6.54  -2.24
     10 -2.63-1.47-1.13-2.73-3.95-4.41       42.12-1.32       42.90-4.21  -2.89
     11  0.38 1.39 1.68 0.54-1.06-1.13       39.26 1.55       39.78-1.10  -2.64
      9  4.08 5.23 5.59 4.20 2.53 2.32       35.43 5.37       36.24 2.44  -2.93
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.41  2.24                   1.73  1.95 0.89  1.78  1.65 1.08   1.22
     10         2.36                         1.90 0.91        1.95 0.91   1.00
     11         2.43                         2.14 0.81        1.87 0.95   1.18
      9         2.64                         2.20 0.79        2.10 0.85   1.08
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.93(F 13 - 45.23)(1.08) + 38.69      0.91(F 10 - 42.90)(0.91) + 38.69

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 36.19 38.76 43.83 51.72 60.57 67.84 71.05 70.10 65.49 55.32 45.50 38.73
1952 38.28 40.14 44.67 52.11 62.45 69.81 73.15 69.98 62.11 53.55 44.25 39.70
1953 37.73 40.74 45.35 54.46 63.29 70.78 72.74 71.05 65.32 55.79 46.48 38.51
1954 37.29 38.78 46.74 52.22 61.13 66.21 70.97 71.14 65.99 55.85 43.91 35.40
1955 33.69 37.93 45.93 54.77 61.04 68.13 71.72 72.33 65.28 54.80 43.19 34.76
1956 33.74 37.38 44.00 51.34 60.58 67.97 71.01 68.74 63.13 54.11 48.11 39.69
1957 38.33 37.31 45.86 53.61 63.08 68.62 71.66 70.76 63.20 54.42 44.67 37.78
1958 31.87 31.49 39.22 50.12 60.17 67.55 70.90 70.20 63.18 55.36 43.83 36.53
1959 33.32 37.30 44.68 53.54 62.64 69.00 72.47 71.76 66.12 55.44 45.73 38.34
1960 34.98 31.98 39.26 48.21 61.48 66.55 71.38 70.52 64.81 55.13 42.38 32.68
1961 29.62 35.55 42.90 49.95 57.50 65.84 70.81 70.98 65.08 56.37 44.50 36.99
1962 33.69 35.81 42.16 51.85 61.86 68.16 70.45 68.83 64.35 54.36 42.70 33.13
1963 28.72 34.88 43.62 54.28 62.05 68.41 72.15 69.92 64.62 55.98 43.82 35.45
1964 30.35 36.08 43.02 53.84 63.05 70.04 72.86 71.13 62.98 54.48 45.24 38.88
1965 35.09 36.04 43.12 53.34 62.27 69.12 71.42 71.55 64.77 55.65 45.90 37.57
1966 33.07 35.26 42.41 52.27 60.34 69.20 72.51 69.91 61.92 52.87 43.33 38.30
1967 33.82 38.15 44.37 52.72 60.92 66.33 70.54 67.56 61.36 51.55 43.38 34.46
1968 31.08 34.64 43.91 53.76 61.63 68.19 73.00 71.12 64.74 55.28 44.75 36.19
1969 31.92 33.88 42.41 52.47 63.82 70.15 72.59 69.97 63.11 53.54 42.02 32.69
1970 30.03 33.09 42.02 51.92 62.20 69.61 72.47 72.57 66.83 57.24 45.88 35.92
1971 33.07 34.64 42.32 50.37 60.61 67.58 71.04 70.28 66.27 57.28 48.80 40.76
1972 37.41 37.21 42.40 51.57 59.14 66.01 69.36 69.95 63.18 53.82 44.61 38.26
1973 35.52 38.54 44.64 52.86 60.73 67.79 71.53 69.44 63.25 55.29 45.10 41.07
1974 37.71 41.61 45.75 54.04 60.48 66.05 68.58 67.00 59.47 50.81 42.47 37.95
1975 35.98 37.67 42.33 51.50 60.91 68.17 70.60 68.21 63.38 55.47 46.85 38.48
1976 36.94 41.16 48.65 54.19 61.69 67.63 70.81 69.01 61.72 51.24 40.32 30.37
1977 29.25 35.11 47.12 56.75 63.27 70.46 74.05 73.93 65.43 55.64 44.14 34.82
1978 27.32 29.17 38.89 50.76 61.13 67.49 72.26 71.50 65.02 55.66 45.64 37.87
1979 31.08 33.82 41.43 53.29 60.30 66.74 70.34 69.52 63.30 54.98 46.10 38.89
1980 33.45 34.43 41.29 51.86 61.23 69.16 73.29 73.65 66.25 55.50 44.11 35.31
1981 33.43 35.22 45.16 52.56 62.95 67.99 71.49 69.30 62.32 53.46 42.52 33.99
1982 31.50 35.52 43.62 53.27 61.50 69.36 70.69 69.52 63.37 55.99 48.10 40.28
1983 35.58 36.63 42.53 51.45 59.78 68.15 73.30 72.15 65.48 55.49 44.23 35.62
1984 34.07 36.67 43.86 50.68 61.89 68.79 72.55 69.31 65.89 55.73 49.50 38.67
1985 36.72 37.17 46.48 55.44 63.00 68.29 70.70 70.13 65.16 58.92 47.92 39.55
1986 34.30 38.18 45.67 54.73 63.82 70.99 73.60 72.14 65.59 56.60 46.14 37.25
1987 33.58 36.16 42.69 52.67 62.28 71.10 74.88 72.95 64.12 54.77 45.50 37.97
1988 34.07 35.95 43.99 52.79 60.98 68.88 73.81 72.37 63.45 53.16 43.55 40.02
1989 37.25 40.07 44.23 51.77 61.03 68.56 72.38 70.26 64.21 55.16 41.00 36.31
1990 36.13 44.80 48.49 54.06 61.83 69.17 72.94 71.37 65.47 57.62 48.90 41.26
1991 38.84 40.82 47.95 57.00 65.52 72.00 73.53 72.21 66.18 56.77 47.31 39.97
1992 37.96 39.53 45.71 52.32 60.23 67.38 71.09 70.45 62.90 54.42 44.64 39.24
1993 35.31 36.38 41.56 51.77 62.16 70.47 74.41 73.38 65.56 55.33 43.77 33.78
1994 29.95 32.91 43.86 51.26 61.84 67.73 72.27 68.93 61.12 53.95 45.87 40.13
1995 34.29 36.24 41.39 51.08 59.42 67.59 72.43 70.67 64.40 52.60 41.14 32.15
1996 29.84 32.03 39.67 48.72 60.08 66.42 70.12 68.02 62.30 51.67 42.33 34.70
1997 34.50 37.28 42.81 49.06 57.08 66.11 70.64 69.32 62.08 52.33 42.91 35.87

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10   7  13    0.939 0.938 0.926 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 35.6 34.1 36.7 34.3 33.6 34.1 37.3 36.1 38.8 38.0 35.3 30.0 34.3 29.8 34.5
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S-  9  0.4  2.7  3.9  2.8  1.2  1.9  2.7  2.4  2.5  2.2  1.4 -0.4  0.1 -0.8 -0.9
S- 10 -5.1 -4.5 -3.6 -4.7 -4.8 -4.1 -3.4 -4.8 -4.6 -4.8 -5.0 -7.6 -7.2 -7.4 -7.3
S-  7 -0.6  1.3  1.9  2.0  0.4  1.2  2.2  1.6  1.5  1.6  1.0 -0.4 -1.5 -1.5 -2.2
S- 13 -7.7 -7.7 -6.8 -8.3 -7.9 -6.8 -7.0 -8.5 -7.0 -8.0 -7.6-11.1 -9.4-11.0-10.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.60 1.77 1.35 1.72 2.28 0.60 34.19 32.62 1.57 34.83 33.35 1.48  -0.09
     10 -5.28-4.83-5.70-5.53-4.38-6.27       39.40-5.20       40.07-5.25  -0.05
      7  0.61 0.79 0.38 0.63 1.23-0.25       33.45 0.74       34.28 0.55  -0.19
     13 -8.60-8.38-9.12-8.78-7.69-9.20       42.99-8.79       43.16-8.33   0.46
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.87  2.89                   2.99  2.99 1.00  2.45  1.85 1.32   1.32
     10         2.48                         2.49 1.20        1.82 1.34   1.12
      7         2.52                         2.68 1.11        2.00 1.22   1.10
     13         2.54                         2.78 1.07        1.66 1.47   1.37
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.97(F  9 - 33.35)(1.32) + 34.83      0.97(F 10 - 40.07)(1.34) + 34.83

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  38   7    0.940 0.939 0.924 0.917
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 36.6 36.7 37.2 38.2 36.2 36.0 40.1 44.8 40.8 39.5 36.4 32.9 36.2 32.0 37.3
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
S-  9  0.6  2.8  3.7  2.3  0.8  2.0  1.9  2.8  2.8  2.5  1.2 -0.3  0.2 -0.8 -0.6
S- 10 -5.2 -4.0 -3.8 -4.3 -4.1 -3.9 -3.5 -3.4 -4.1 -4.1 -5.2 -7.9 -6.7 -7.4 -6.9
S- 38 -2.2  0.8  2.4 -0.5 -2.6  0.1 -0.3  0.5  0.8 -0.1 -0.8 -2.0 -2.0 -2.7 -2.6
S-  7 -0.4  2.4  1.6  1.9  0.6  1.3  2.7  2.7  1.9  2.5  1.4  0.7 -1.2 -1.7 -1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.63 1.54 1.61 1.84 2.18 0.72 36.68 35.21 1.47 37.39 35.92 1.47   0.00
     10 -5.01-5.14-5.03-5.08-4.05-6.05       41.89-5.21       42.35-4.96   0.25
     38 -0.64-0.98-0.63-0.24-0.24-1.35       37.64-0.96       38.13-0.75   0.22
      7  1.01 0.72 1.10 1.09 1.59 0.35       35.81 0.87       36.37 1.01   0.15
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.90  2.79                   2.52  2.46 1.02  3.00  2.36 1.27   1.24
     10         2.45                         2.14 1.18        2.25 1.34   1.14
     38         3.03                         2.71 0.93        2.54 1.18   1.27
      7         2.26                         1.94 1.30        2.33 1.29   0.99
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.97(F  9 - 35.92)(1.27) + 37.39      0.97(F 10 - 42.35)(1.34) + 37.39

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  38  39    0.923 0.910 0.897 0.880
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.5 43.9 46.5 45.7 42.7 44.0 44.2 48.5 48.0 45.7 41.6 43.9 41.4 39.7 42.8
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
cd 39 44.8 45.1 47.1 49.0 47.4 45.2 45.2 49.1 49.2 48.4 43.1 46.9 47.3 42.9 46.8
S-  9  0.6  2.4  2.8  1.6  0.8  2.1  2.1  2.3  2.7  2.5  1.7  0.3 -0.8 -0.2 -0.5
S- 10 -4.8 -3.8 -3.9 -3.9 -3.6 -3.5 -3.8 -3.8 -3.3 -3.4 -4.6 -6.4 -7.2 -6.7 -6.5
S- 38 -2.0 -0.1  0.6 -1.3 -2.8  0.1 -0.6  0.2  0.0 -0.5 -0.5 -1.7 -3.7 -1.9 -3.0
S- 39 -2.3 -1.2 -0.6 -3.3 -4.7 -1.2 -1.0 -0.6 -1.3 -2.7 -1.5 -3.1 -5.9 -3.2 -4.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.55 1.42 1.60 1.73 1.95 0.82 43.62 42.19 1.43 44.06 42.70 1.36  -0.07
     10 -4.51-4.91-4.19-4.44-3.86-5.45       48.40-4.77       48.67-4.61   0.16
     38 -1.08-1.21-1.17-0.94-0.66-1.59       44.93-1.30       45.19-1.13   0.17
     39 -2.27-2.02-2.47-2.13-1.87-3.09       45.89-2.26       46.50-2.44  -0.18
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.28  2.04                   2.12  2.10 1.01  2.37  1.69 1.40   1.40
     10         1.97                         1.95 1.08        1.80 1.32   1.22
     38         2.21                         2.29 0.92        1.81 1.31   1.42
     39         2.43                         2.45 0.86        1.98 1.20   1.39
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.96(F  9 - 42.70)(1.40) + 44.06      0.95(F 10 - 48.67)(1.32) + 44.06

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38   6  24    0.920 0.890 0.881 0.854
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 51.5 50.7 55.4 54.7 52.7 52.8 51.8 54.1 57.0 52.3 51.8 51.3 51.1 48.7 49.1
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
cd  6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3
cd 24 48.6 46.3 54.7 53.7 54.5 51.7 49.6 51.0 55.6 50.6 49.3 50.5 50.7 47.5 48.5
S-  9  1.7  2.4  1.8  2.0  0.7  1.8  1.8  1.9  1.9  2.3  2.0  0.7 -0.5 -0.5  0.3
S- 38 -0.6  0.3 -1.0 -0.7 -2.8 -0.4 -1.2 -0.1 -1.0 -0.5  0.0 -1.5 -3.3 -2.8 -2.2
S-  6  3.1  5.5  2.7  2.8  0.8  3.4  3.8  3.8  2.5  3.5  3.5  2.8  1.9  2.1  1.8
S- 24  2.8  4.3  0.7  1.1 -1.8  1.1  2.2  3.1  1.4  1.7  2.4  0.8  0.4  1.3  0.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.41 1.07 1.56 1.55 1.80 0.88 52.36 51.18 1.17 52.32 50.97 1.35   0.18
     38 -1.31-1.71-1.31-1.11-0.88-1.61       54.02-1.67       53.51-1.19   0.47
      6  3.12 2.83 3.44 3.35 3.25 2.58       49.44 2.92       49.40 2.92   0.00
     24  1.73 1.84 1.93 1.77 1.75 1.22       50.60 1.75       50.85 1.47  -0.28
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.83  1.68                   1.82  1.70 1.07  2.18  1.83 1.19   1.11
     38         1.82                         1.74 1.05        2.05 1.06   1.01
      6         1.97                         1.60 1.14        2.40 0.91   0.80
     24         2.18                         1.79 1.02        2.65 0.82   0.81
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.96(F  9 - 50.97)(1.19) + 52.32      0.94(F 38 - 53.51)(1.06) + 52.32

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38  10  11    0.885 0.840 0.834 0.826
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 59.8 61.9 63.0 63.8 62.3 61.0 61.0 61.8 65.5 60.2 62.2 61.8 59.4 60.1 57.1
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
S-  9  1.8  2.4  1.8  2.0  1.2  1.7  2.5  2.5  1.8  2.3  2.2  1.2 -0.3 -0.2  0.9
S- 38 -0.5  0.1 -0.9 -0.8 -2.1 -1.2  0.2  0.2 -1.2 -0.3  0.5 -1.0 -3.1 -2.3 -1.3
S- 10 -3.4 -2.7 -3.7 -2.9 -3.1 -2.8 -3.6 -3.2 -2.4 -2.5 -3.2 -4.5 -5.6 -5.2 -4.6
S- 11 -0.2  0.5 -0.1 -0.4 -1.1 -0.4  0.5 -0.3  0.5  0.1  0.3 -0.9 -3.0 -2.4 -1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.42 0.77 1.56 1.58 2.00 1.12 61.54 60.56 0.98 61.40 59.81 1.59   0.61
     38 -1.32-2.17-1.35-1.20-0.62-1.27       63.55-2.00       62.31-0.92   1.08
     10 -3.60-4.45-2.98-3.46-3.21-4.01       65.60-4.05       64.96-3.56   0.49
     11 -1.02-1.87-1.08-0.79-0.36-1.00       63.26-1.72       61.96-0.57   1.15
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.53  1.51                   1.44  1.56 0.92  1.93  1.75 1.10   1.19
     38         1.68                         1.64 0.88        1.97 0.98   1.12
     10         1.42                         1.39 1.04        1.58 1.22   1.18
     11         1.51                         1.45 1.00        1.64 1.17   1.18
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.94(F  9 - 59.81)(1.10) + 61.40      0.92(F 38 - 62.31)(0.98) + 61.40

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9   7  10  39    0.848 0.823 0.822 0.771
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.2 68.8 68.3 71.0 71.1 68.9 68.6 69.2 72.0 67.4 70.5 67.7 67.6 66.4 66.1
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5
S-  9  2.0  2.6  1.7  2.5  1.5  1.7  2.2  2.8  1.6  2.3  2.2  1.1  0.4 -0.1  1.6
S-  7 -0.8  0.3 -0.8 -0.1  0.0 -1.2 -0.5  0.3 -0.2  0.5  0.0 -2.1 -1.9 -1.7 -1.4
S- 10 -3.2 -2.6 -3.5 -3.0 -2.9 -2.4 -3.3 -3.0 -2.8 -2.7 -3.4 -4.6 -4.6 -5.2 -3.6
S- 39 -3.3 -2.2 -3.4 -3.1 -3.5 -3.5 -1.5 -1.3 -2.9 -2.5 -2.3 -3.4 -4.2 -5.4 -3.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.46 0.66 1.76 1.52 2.02 1.29 68.27 67.31 0.96 68.78 67.04 1.73   0.78
      7 -0.75-1.31-0.36-0.80-0.39-0.97       69.39-1.13       69.42-0.65   0.48
     10 -3.43-4.29-2.78-3.27-3.09-3.83       72.15-3.88       72.15-3.37   0.50
     39 -3.43-4.16-3.04-3.72-2.80-3.43       72.21-3.95       71.83-3.05   0.89
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.48  1.42                   1.34  1.45 0.93  1.66  1.53 1.09   1.18
      7         1.20                         1.07 1.25        1.38 1.20   0.96
     10         1.30                         1.15 1.17        1.40 1.19   1.02
     39         1.51                         1.60 0.84        1.61 1.04   1.24
Suggested regression eqns from two most closely related CDs (  9 and   7): 
          0.92(F  9 - 67.04)(1.09) + 68.78      0.91(F  7 - 69.42)(1.20) + 68.78

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  11    0.783 0.745 0.721 0.669
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.3 72.6 70.7 73.6 74.9 73.8 72.4 72.9 73.5 71.1 74.4 72.3 72.4 70.1 70.6
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
S- 10 -2.8 -2.6 -3.7 -3.0 -2.7 -2.2 -3.5 -2.8 -3.2 -2.9 -2.8 -4.0 -4.1 -4.6 -3.4
S-  9  1.9  2.1  1.6  2.6  2.2  1.7  1.6  2.7  1.6  2.5  2.3  1.0  0.1  0.4  1.5
S-  7 -1.0 -0.5 -1.3  0.2  0.2 -1.1 -0.8 -0.2 -1.1  0.4  0.1 -1.7 -2.0 -2.2 -1.5
S- 11  0.5  0.8 -0.5  0.0  1.2  1.2  0.8  0.8  0.9  0.9  0.5  0.2 -0.7 -1.4 -0.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -3.49-4.26-2.84-3.73-3.09-3.57 71.65 75.44-3.79 72.58 75.81-3.23   0.56
      9  1.44 0.69 1.94 1.25 1.94 1.33       70.51 1.14       70.87 1.71   0.57
      7 -1.19-1.73-0.91-1.49-0.64-1.15       73.07-1.42       73.42-0.84   0.58
     11 -0.16-1.30 0.52-0.26 0.23 0.07       72.39-0.74       72.21 0.36   1.10
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.32  1.07                   0.81  0.93 0.87  1.38  1.08 1.28   1.47
      9         1.17                         1.06 0.76        1.25 1.10   1.44
      7         1.05                         0.92 0.88        1.18 1.16   1.32
     11         1.21                         1.17 0.69        1.06 1.30   1.87
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.88(F 10 - 75.81)(1.28) + 72.58      0.86(F  9 - 70.87)(1.10) + 72.58

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  39  11    0.820 0.820 0.779 0.776
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.2 69.3 70.1 72.1 72.9 72.4 70.3 71.4 72.2 70.4 73.4 68.9 70.7 68.0 69.3
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
S- 10 -3.2 -3.3 -3.3 -2.7 -3.3 -2.2 -3.8 -2.9 -3.2 -3.4 -3.0 -4.7 -4.5 -5.1 -4.2
S-  9  2.0  1.8  1.6  2.3  2.1  1.7  1.2  2.3  2.0  2.1  2.2  0.6  0.3  0.4  1.5
S- 39 -4.8 -3.2 -2.9 -2.9 -2.1 -2.8 -2.6 -2.2 -2.7 -1.4 -1.4 -3.2 -4.4 -4.2 -3.7
S- 11  0.3  0.1  0.4 -0.1  1.0  0.9  0.1  0.3  0.7  0.3  0.6 -0.5 -1.2 -1.7 -0.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -3.72-4.16-3.18-4.19-3.15-4.00 70.60 74.33-3.74 70.91 74.43-3.52   0.22
      9  1.36 0.85 1.77 1.03 1.83 1.30       69.36 1.24       69.30 1.61   0.37
     39 -3.30-4.08-2.69-3.64-3.02-3.00       74.18-3.58       73.87-2.96   0.62
     11 -0.38-1.20 0.18-0.68 0.17-0.37       71.32-0.72       70.88 0.04   0.76
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.56  1.24                   0.97  1.12 0.87  1.55  1.08 1.43   1.65
      9         1.38                         1.36 0.71        1.21 1.28   1.80
     39         1.60                         1.40 0.69        1.45 1.07   1.55
     11         1.34                         1.14 0.85        1.11 1.39   1.65
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.91(F 10 - 74.43)(1.43) + 70.91      0.91(F  9 - 69.30)(1.28) + 70.91

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11   9  10  13    0.822 0.815 0.803 0.799
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 65.5 65.9 65.2 65.6 64.1 63.5 64.2 65.5 66.2 62.9 65.6 61.1 64.4 62.3 62.1
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
S- 11 -0.2 -0.3 -0.4 -0.2  0.6  0.4  0.1  0.2  1.0 -0.2  0.5 -2.3 -1.1 -1.8 -1.8
S-  9  1.8  1.6  1.5  2.3  2.2  2.1  1.6  2.3  2.7  1.9  2.3 -0.2  0.2  0.2  0.9
S- 10 -3.5 -3.4 -3.7 -3.0 -3.1 -2.7 -3.9 -3.1 -2.2 -3.3 -3.1 -5.2 -4.7 -5.0 -5.0
S- 13 -5.2 -5.2 -5.1 -4.9 -4.8 -4.8 -5.1 -5.7 -3.5 -5.0 -4.9 -6.7 -6.2 -6.4 -7.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.75-1.33-0.37-1.11-0.14-0.82 64.43 65.38-0.96 64.26 64.65-0.39   0.57
      9  1.32 1.02 1.55 0.94 1.88 1.16       63.15 1.28       62.70 1.56   0.29
     10 -3.91-4.16-3.57-4.55-3.25-4.07       68.22-3.79       67.92-3.66   0.14
     13 -5.68-6.23-5.29-6.10-5.13-5.67       70.25-5.82       69.62-5.36   0.45
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.62  1.43                   1.18  1.27 0.93  1.52  1.04 1.46   1.57
      9         1.50                         1.33 0.89        1.10 1.38   1.56
     10         1.42                         1.31 0.90        1.07 1.42   1.58
     13         1.44                         1.41 0.84        1.10 1.38   1.64
Suggested regression eqns from two most closely related CDs ( 11 and   9): 
          0.91(F 11 - 64.65)(1.46) + 64.26      0.90(F  9 - 62.70)(1.38) + 64.26

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  11  13  10    0.879 0.864 0.860 0.859
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 55.5 55.7 58.9 56.6 54.8 53.2 55.2 57.6 56.8 54.4 55.3 54.0 52.6 51.7 52.3
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
S-  9  1.9  1.8  1.4  1.8  2.1  2.1  1.8  2.5  3.3  1.4  1.6 -0.2  0.6  0.5  0.9
S- 11 -0.3 -0.8 -1.1 -2.0  0.3 -0.5 -0.1  0.4  0.8 -0.7 -0.6 -2.3 -1.5 -2.4 -1.8
S- 13 -5.4 -5.8 -6.0 -6.5 -5.1 -5.7 -5.9 -5.2 -3.6 -5.8 -6.2 -6.9 -7.1 -7.3 -7.2
S- 10 -4.0 -3.8 -4.2 -4.1 -3.7 -3.3 -4.5 -3.1 -2.4 -4.2 -4.8 -5.5 -5.6 -5.6 -5.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.38 1.35 1.36 1.08 1.87 1.17 55.11 53.73 1.38 54.97 53.41 1.55   0.18
     11 -1.02-1.17-0.87-1.41-0.51-1.21       56.22-1.11       55.81-0.84   0.27
     13 -6.19-6.46-5.97-6.59-5.65-6.31       61.38-6.27       60.96-5.99   0.28
     10 -4.33-4.41-4.08-4.77-3.73-4.81       59.27-4.17       59.25-4.29  -0.12
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.68  1.66                   0.77  0.90 0.85  1.96  1.63 1.20   1.41
     11         1.62                         0.81 0.95        1.72 1.14   1.21
     13         1.52                         0.79 0.97        1.60 1.22   1.27
     10         1.52                         0.78 0.98        1.55 1.27   1.30
Suggested regression eqns from two most closely related CDs (  9 and  11): 
          0.94(F  9 - 53.41)(1.20) + 54.97      0.93(F 11 - 55.81)(1.14) + 54.97

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13  11    0.928 0.921 0.915 0.906
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.2 49.5 47.9 46.1 45.5 43.5 41.0 48.9 47.3 44.6 43.8 45.9 41.1 42.3 42.9
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
S-  9  2.0  1.8  2.1  1.7  2.0  2.3  1.6  2.2  2.9  1.8  0.9 -0.5  0.1 -0.3  0.7
S- 10 -4.5 -3.8 -4.6 -4.9 -3.5 -3.5 -5.5 -4.2 -3.4 -4.4 -5.6 -6.2 -6.4 -6.3 -5.6
S- 13 -6.5 -6.0 -6.9 -7.2 -5.3 -6.1 -8.3 -5.9 -5.1 -6.0 -7.0 -7.6 -8.5 -8.1 -7.0
S- 11 -1.1 -0.9 -1.4 -2.5 -0.5 -0.4 -1.8 -0.3  0.1 -0.7 -1.9 -3.1 -2.7 -3.5 -1.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.37 1.56 1.24 1.23 1.86 0.79 44.68 43.22 1.47 44.98 43.56 1.42  -0.05
     10 -4.79-4.65-4.80-5.00-4.25-5.44       49.29-4.61       49.82-4.84  -0.23
     13 -6.89-6.99-7.05-6.95-6.47-7.05       51.66-6.98       51.75-6.77   0.21
     11 -1.54-1.46-1.69-1.61-1.13-1.92       46.20-1.52       46.46-1.48   0.04
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.11  2.15                   1.47  1.54 0.95  2.56  2.26 1.13   1.19
     10         1.96                         1.43 1.03        2.11 1.21   1.18
     13         1.84                         1.31 1.12        2.05 1.25   1.12
     11         2.00                         1.44 1.02        2.26 1.13   1.12
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.96(F  9 - 43.56)(1.13) + 44.98      0.96(F 10 - 49.82)(1.21) + 44.98

Station#1859  DALE ENTERPRISE     , va  4220805    lat/lon 78.93   38.45     7M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  38  13    0.941 0.934 0.918 0.918
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 35.6 38.7 39.5 37.3 38.0 40.0 36.3 41.3 40.0 39.2 33.8 40.1 32.2 34.7 35.9
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
S-  9  2.4  2.9  2.9  1.4  1.5  2.0  2.0  1.7  2.8  1.2  0.1  0.3 -0.5 -0.5 -1.4
S- 10 -4.5 -3.9 -4.7 -5.2 -4.1 -3.4 -5.4 -4.7 -4.6 -5.0 -7.4 -6.2 -7.0 -7.1 -7.7
S- 38  1.2  1.5  1.5 -0.4 -0.7 -0.6 -0.1  0.2  0.9 -0.2 -1.1 -1.4 -2.1 -2.3 -3.6
S- 13 -7.6 -6.4 -7.0 -8.2 -6.4 -6.4 -8.5 -6.7 -6.5 -6.9 -9.4 -7.6 -9.7 -9.9 -8.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.41 1.57 1.29 1.58 1.96 0.30 36.94 35.43 1.51 37.50 36.24 1.25  -0.26
     10 -5.30-5.12-5.43-5.35-4.52-6.43       42.12-5.18       42.90-5.40  -0.22
     38 -0.47-0.57-0.59-0.07 0.02-1.40       37.37-0.43       37.97-0.47  -0.04
     13 -7.93-8.18-8.19-7.86-7.13-8.42       45.11-8.17       45.23-7.73   0.44
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.58  2.64                   2.16  2.20 0.98  2.59  2.10 1.23   1.25
     10         2.36                         1.90 1.14        1.95 1.33   1.17
     38         2.70                         2.22 0.97        2.24 1.15   1.19
     13         2.24                         1.95 1.11        1.65 1.57   1.42
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.97(F  9 - 36.24)(1.23) + 37.50      0.97(F 10 - 42.90)(1.33) + 37.50

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 41.06 44.10 50.13 58.13 66.92 73.65 77.51 76.41 71.33 60.21 50.00 43.80
1952 43.45 45.67 50.35 58.17 68.69 75.69 78.68 75.33 67.07 57.90 48.49 44.66
1953 43.23 46.63 51.47 60.81 69.15 76.06 77.84 76.34 70.47 60.86 50.74 43.66
1954 42.69 45.62 53.33 58.76 67.43 72.32 77.03 76.56 71.12 60.50 48.76 40.69
1955 39.52 43.99 51.78 60.36 66.54 72.83 76.11 76.46 69.24 59.07 47.50 40.48
1956 39.30 43.23 49.34 56.99 65.62 72.71 76.02 74.23 68.79 59.21 52.59 44.96
1957 43.86 43.46 51.35 59.37 69.07 74.86 77.02 75.74 67.85 59.37 49.86 43.15
1958 38.03 38.21 45.88 56.81 66.42 73.19 76.24 75.25 68.22 59.99 48.98 42.35
1959 39.34 43.21 51.11 60.22 69.47 74.83 77.82 76.04 70.50 59.72 50.22 43.06
1960 40.55 40.45 47.57 56.12 67.00 71.81 75.90 74.44 69.18 59.98 48.75 40.06
1961 37.89 43.58 50.25 56.95 63.51 71.13 75.00 75.09 68.65 60.41 49.39 42.17
1962 39.45 41.20 47.90 57.16 66.49 72.52 73.88 72.40 68.14 58.94 48.79 40.26
1963 36.35 41.73 50.15 60.02 66.86 72.02 75.79 74.27 68.63 59.55 47.40 40.08
1964 36.09 41.75 48.41 58.68 67.28 73.43 75.33 73.16 65.67 57.84 49.12 43.57
1965 39.78 40.96 47.11 58.08 67.20 74.18 75.78 75.93 69.42 60.48 49.97 42.43
1966 38.27 40.52 46.81 56.01 64.32 73.06 76.49 74.92 67.11 58.20 48.38 42.86
1967 38.57 42.34 49.33 57.75 65.49 70.16 74.48 72.02 65.86 55.64 48.19 40.21
1968 36.81 39.19 47.30 56.98 64.87 71.84 77.18 75.98 69.76 59.57 48.63 40.03
1969 37.03 39.08 47.05 55.54 66.37 72.72 75.82 73.64 67.32 57.61 46.96 37.97
1970 35.67 38.70 48.18 57.75 67.75 73.82 76.66 76.77 71.35 62.22 51.50 42.78
1971 39.27 39.87 46.60 54.95 65.04 72.28 76.02 75.04 70.56 61.85 53.74 46.29
1972 42.66 43.04 47.79 56.66 63.76 70.63 74.61 74.50 67.21 57.51 48.99 43.16
1973 40.23 42.87 49.48 57.99 66.25 73.12 77.76 76.78 70.97 61.91 50.80 45.87
1974 42.68 46.35 50.32 58.67 64.93 71.00 73.98 73.02 65.84 56.63 47.27 42.06
1975 39.85 41.64 46.68 55.40 65.46 72.66 76.22 74.78 69.87 60.86 50.43 41.26
1976 39.52 44.07 52.53 58.53 65.49 71.57 75.17 73.31 64.98 54.17 43.68 34.99
1977 33.11 38.95 50.63 60.92 67.47 74.19 77.76 78.05 69.41 59.60 47.78 39.53
1978 33.72 36.18 45.21 55.50 65.59 71.96 77.19 76.47 69.47 60.09 49.59 42.56
1979 36.42 39.33 47.25 58.06 65.08 70.99 74.96 74.51 68.15 59.65 50.16 43.85
1980 38.47 39.72 46.25 56.59 65.98 73.17 77.65 78.42 70.28 58.68 46.82 39.09
1981 37.59 39.61 48.86 56.27 67.58 73.71 77.55 74.23 66.49 57.51 46.69 38.09
1982 35.95 39.88 48.44 57.88 66.70 74.64 76.30 74.81 68.00 59.56 51.59 44.13
1983 40.67 41.66 47.43 55.83 64.40 72.96 77.77 76.88 70.12 59.82 48.50 40.03
1984 38.60 41.25 48.03 55.09 65.45 72.56 76.43 73.64 70.46 60.11 53.32 42.31
1985 40.31 41.29 50.96 60.36 68.91 74.03 76.45 74.66 69.57 63.43 52.51 43.87
1986 38.59 42.19 50.35 58.33 67.99 75.06 78.28 76.31 69.53 61.19 50.88 41.86
1987 37.80 40.25 46.62 56.77 66.41 75.50 79.18 77.97 68.54 58.86 48.96 41.71
1988 38.05 39.91 48.34 57.07 65.74 73.27 78.25 76.59 67.90 56.86 47.18 43.16
1989 40.75 43.62 48.72 56.27 66.02 73.20 77.38 75.25 68.89 60.12 47.04 42.01
1990 41.10 48.56 53.53 60.03 67.46 74.76 78.19 76.53 69.75 60.98 52.49 45.25
1991 42.64 44.46 51.35 60.41 68.58 75.32 77.30 75.97 68.84 58.83 49.93 43.73
1992 42.62 43.72 49.16 55.15 62.95 70.59 74.50 74.17 66.18 58.07 47.93 42.68
1993 39.19 40.73 45.54 55.40 65.59 74.54 77.95 77.34 68.96 58.95 47.63 39.37
1994 36.68 40.22 49.75 57.20 66.65 73.20 77.29 74.40 66.54 58.41 50.47 44.56
1995 40.57 42.71 49.26 58.47 66.07 72.97 77.25 75.90 69.51 57.72 46.87 38.80
1996 37.13 39.32 46.22 55.44 66.25 73.44 76.39 74.55 67.94 57.34 48.06 41.18
1997 41.25 44.60 49.97 55.91 62.54 70.73 75.36 74.84 68.13 57.88 47.82 40.61

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10   9  38    0.954 0.953 0.950 0.938
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.7 38.6 40.3 38.6 37.8 38.0 40.8 41.1 42.6 42.6 39.2 36.7 40.6 37.1 41.3
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
S- 13 -2.6 -3.2 -3.2 -4.0 -3.7 -2.9 -3.5 -3.5 -3.2 -3.4 -3.7 -4.4 -3.1 -3.7 -3.5
S- 10  0.0  0.1  0.0 -0.4 -0.5 -0.1  0.1  0.2 -0.8 -0.1 -1.2 -0.9 -0.9 -0.1 -0.5
S-  9  5.5  7.2  7.5  7.1  5.4  5.9  6.2  7.4  6.3  6.9  5.3  6.4  6.4  6.5  5.8
S- 38  2.6  6.1  6.7  5.1  2.8  4.1  4.1  5.3  5.0  4.4  3.7  4.6  4.4  4.6  3.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -3.40-2.82-3.27-3.96-3.41-3.57 40.04 42.99-2.95 39.73 43.16-3.43  -0.48
     10 -0.08 0.73 0.15-0.71-0.10-0.64       39.40 0.64       40.07-0.34  -0.99
      9  6.81 7.33 7.21 6.54 6.55 6.23       32.62 7.42       33.35 6.38  -1.04
     38  4.80 5.02 5.15 4.78 4.56 4.37       34.82 5.22       35.24 4.49  -0.73
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.47  2.54                   2.37  2.78 0.85  1.82  1.66 1.09   1.28
     10         2.48                         2.49 0.95        1.82 1.00   1.05
      9         2.89                         2.99 0.79        1.85 0.98   1.24
     38         3.07                         3.13 0.76        2.04 0.89   1.17
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.98(F 13 - 43.16)(1.09) + 39.73      0.98(F 10 - 40.07)(1.00) + 39.73

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  38    0.960 0.940 0.932 0.920
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.7 41.3 41.3 42.2 40.3 39.9 43.6 48.6 44.5 43.7 40.7 40.2 42.7 39.3 44.6
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10 -0.1  0.6  0.4 -0.3  0.0  0.1  0.1  0.3 -0.5  0.1 -0.9 -0.6 -0.2 -0.1  0.4
S- 13 -2.7 -3.8 -3.4 -4.5 -3.7 -3.2 -4.1 -2.8 -3.6 -3.4 -4.0 -5.1 -3.3 -4.1 -4.3
S-  9  5.6  7.4  7.8  6.3  4.9  6.0  5.5  6.6  6.5  6.7  5.5  7.1  6.7  6.5  6.7
S- 38  2.9  5.4  6.5  3.5  1.5  4.0  3.2  4.3  4.4  4.1  3.6  5.3  4.5  4.6  4.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.30 1.13 0.54-0.21 0.14-0.25 42.92 41.89 1.03 42.30 42.35-0.05  -1.08
     13 -3.50-2.75-3.21-4.04-3.66-3.97       45.76-2.84       46.03-3.73  -0.89
      9  6.94 7.82 7.18 6.70 6.36 6.51       35.21 7.71       35.92 6.38  -1.33
     38  4.66 5.29 4.94 4.63 3.94 4.45       37.64 5.28       38.13 4.17  -1.11
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.48  2.45                   2.16  2.14 1.01  2.33  2.25 1.04   1.03
     13         2.57                         2.47 0.87        2.21 1.05   1.21
      9         2.79                         2.46 0.88        2.36 0.98   1.12
     38         3.03                         2.71 0.80        2.54 0.92   1.15
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.98(F 10 - 42.35)(1.04) + 42.30      0.97(F 13 - 46.03)(1.05) + 42.30

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  12    0.945 0.920 0.905 0.893
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 47.4 48.0 51.0 50.3 46.6 48.3 48.7 53.5 51.3 49.2 45.5 49.8 49.3 46.2 50.0
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5
S- 10  0.1  0.4  0.6  0.8  0.3  0.8  0.7  1.2  0.1  0.0 -0.6 -0.5  0.7 -0.2  0.6
S- 13 -2.7 -3.3 -2.8 -3.9 -3.4 -2.8 -3.5 -1.9 -3.5 -3.3 -3.5 -4.2 -3.3 -3.8 -3.7
S-  9  5.5  6.6  7.3  6.2  4.7  6.4  6.6  7.3  6.1  6.0  5.6  6.2  7.1  6.4  6.6
S- 12 -5.0 -6.0 -5.0 -6.2 -5.2 -4.8 -6.0 -4.6 -6.1 -5.6 -6.2 -7.0 -5.7 -6.5 -6.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.72 1.36 1.07 0.35 0.60 0.02 49.74 48.40 1.35 49.02 48.67 0.34  -1.00
     13 -3.05-2.25-2.96-3.45-3.14-3.62       52.13-2.38       52.32-3.30  -0.92
      9  6.78 7.70 6.86 6.52 6.41 6.29       42.19 7.55       42.70 6.32  -1.24
     12 -5.39-4.45-5.24-5.79-5.46-6.24       54.41-4.67       54.77-5.76  -1.09
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.04  1.97                   1.95  1.95 1.00  2.04  1.80 1.14   1.14
     13         1.96                         2.04 0.96        1.92 1.07   1.11
      9         2.04                         2.10 0.93        1.69 1.21   1.30
     12         1.96                         1.90 1.03        2.02 1.01   0.98
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.97(F 10 - 48.67)(1.14) + 49.02      0.96(F 13 - 52.32)(1.07) + 49.02

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  12    0.920 0.903 0.867 0.865
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 55.8 55.1 60.4 58.3 56.8 57.1 56.3 60.0 60.4 55.2 55.4 57.2 58.5 55.4 55.9
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
S- 10  0.4  0.8  1.2  0.6  0.8  1.4  1.0  2.1  0.5  0.0 -0.2 -0.1  1.2  0.5  0.9
S- 13 -2.3 -2.9 -1.5 -2.8 -2.6 -1.9 -2.3 -0.9 -2.4 -2.8 -2.5 -3.2 -3.0 -3.1 -3.1
S-  9  6.1  6.8  6.7  5.7  4.8  6.1  6.3  7.9  5.3  5.2  5.6  6.7  6.9  6.3  7.1
S- 12 -4.3 -5.5 -3.3 -4.6 -3.8 -3.6 -4.6 -3.2 -4.8 -4.8 -4.8 -5.5 -5.1 -5.4 -5.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.11 1.66 1.42 0.82 1.03 0.40 58.44 56.76 1.68 57.18 56.44 0.74  -0.93
     13 -2.28-1.69-2.28-2.48-2.27-2.87       60.19-1.75       59.67-2.49  -0.74
      9  6.50 7.43 6.42 6.16 6.25 6.14       51.18 7.26       50.97 6.21  -1.04
     12 -4.19-3.41-4.00-4.50-4.18-5.15       61.92-3.48       61.78-4.59  -1.12
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.69  1.52                   1.42  1.54 0.93  1.84  1.62 1.14   1.23
     13         1.53                         1.59 0.89        1.57 1.17   1.31
      9         1.68                         1.70 0.83        1.83 1.00   1.20
     12         1.46                         1.46 0.97        1.58 1.16   1.20
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 56.44)(1.14) + 57.18      0.95(F 13 - 59.67)(1.17) + 57.18

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12   9    0.923 0.919 0.904 0.883
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.4 65.4 68.9 68.0 66.4 65.7 66.0 67.5 68.6 63.0 65.6 66.7 66.1 66.3 62.5
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
S- 10  1.2  0.9  2.2  1.3  1.0  2.0  1.4  2.4  0.7  0.2  0.2  0.3  1.1  1.0  0.8
S- 13 -1.0 -1.2 -0.1 -2.0 -1.7 -0.8 -0.6 -0.4 -1.4 -2.2 -1.9 -1.7 -2.0 -1.8 -1.3
S- 12 -2.6 -3.3 -1.8 -3.0 -2.6 -2.1 -2.9 -2.4 -3.4 -4.0 -3.3 -3.2 -4.1 -3.6 -3.6
S-  9  6.4  5.9  7.7  6.2  5.4  6.4  7.5  8.1  4.8  5.0  5.6  6.0  6.3  6.0  6.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.29 1.54 1.47 1.10 1.55 0.61 67.18 65.60 1.58 66.07 64.96 1.11  -0.47
     13 -1.48-1.47-1.55-1.62-1.07-1.76       68.64-1.46       67.41-1.34   0.12
     12 -2.94-2.53-2.84-3.26-2.66-3.60       69.77-2.59       69.13-3.07  -0.47
      9  6.31 6.76 6.01 6.13 6.76 5.74       60.56 6.61       59.81 6.26  -0.35
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.57  1.42                   1.47  1.39 1.06  1.75  1.58 1.11   1.05
     13         1.50                         1.36 1.09        1.66 1.06   0.97
     12         1.33                         1.16 1.27        1.56 1.13   0.89
      9         1.51                         1.56 0.94        1.75 1.00   1.06
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 64.96)(1.11) + 66.07      0.96(F 13 - 67.41)(1.06) + 66.07

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  11  13    0.930 0.878 0.869 0.869
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.0 72.6 74.0 75.1 75.5 73.3 73.2 74.8 75.3 70.6 74.5 73.2 73.0 73.4 70.7
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
S- 10  1.6  1.2  2.2  1.1  1.5  2.0  1.4  2.6  0.6  0.5  0.7  0.9  0.8  1.8  1.0
S-  9  6.8  6.4  7.4  6.5  5.9  6.1  6.8  8.4  4.9  5.5  6.3  6.5  5.8  6.9  6.2
S- 11  4.9  4.9  5.5  4.2  4.4  5.3  6.0  6.1  4.3  3.8  4.2  5.2  4.2  4.3  4.3
S- 13 -0.7 -0.5  0.2 -1.8 -0.3  0.4  0.3  0.2 -0.6 -1.6 -1.6 -0.4 -1.3 -1.2 -0.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.28 1.25 1.20 1.18 1.75 0.90 73.42 72.15 1.27 73.48 72.15 1.33   0.06
      9  6.17 6.21 5.74 5.97 6.86 6.02       67.31 6.11       67.04 6.43   0.33
     11  4.34 4.03 4.02 4.26 5.05 4.34       69.39 4.02       68.69 4.79   0.76
     13 -0.89-1.28-0.96-0.90-0.32-1.06       74.61-1.19       74.11-0.64   0.55
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.44  1.30                   1.40  1.15 1.22  1.43  1.40 1.02   0.84
      9         1.42                         1.45 0.97        1.53 0.93   0.97
     11         1.47                         1.43 0.98        1.45 0.98   1.00
     13         1.48                         1.32 1.06        1.49 0.96   0.90
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 72.15)(1.02) + 73.48      0.94(F  9 - 67.04)(0.93) + 73.48

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  11  13   9    0.892 0.824 0.818 0.817
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 77.8 76.4 76.4 78.3 79.2 78.3 77.4 78.2 77.3 74.5 77.9 77.3 77.3 76.4 75.4
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
S- 10  1.7  1.3  2.1  1.6  1.6  2.2  1.5  2.4  0.5  0.5  0.8  1.1  0.7  1.6  1.3
S- 11  5.0  4.7  5.3  4.7  5.5  5.7  5.8  6.1  4.7  4.3  4.1  5.2  4.2  4.9  4.6
S- 13 -0.3 -0.1  0.2 -1.0  0.1  0.8  0.6  0.1 -0.3 -1.3 -1.4  0.3 -0.6 -0.4 -0.2
S-  9  6.4  6.0  7.3  7.3  6.5  6.2  6.6  7.9  5.3  6.0  5.8  6.1  4.9  6.6  6.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.21 1.05 0.92 1.22 1.85 0.93 76.40 75.44 0.96 77.20 75.81 1.39   0.43
     11  4.55 4.02 4.29 4.69 5.18 4.57       72.39 4.01       72.21 4.98   0.98
     13 -0.54-1.13-0.67-0.35 0.01-0.55       77.48-1.08       77.42-0.23   0.86
      9  6.14 6.00 5.70 6.20 6.88 5.84       70.51 5.89       70.87 6.33   0.44
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.27  1.07                   1.21  0.93 1.30  1.17  1.08 1.09   0.84
     11         1.21                         1.17 1.03        1.06 1.10   1.07
     13         1.24                         1.16 1.04        1.16 1.01   0.97
      9         1.17                         1.06 1.14        1.25 0.94   0.82
Suggested regression eqns from two most closely related CDs ( 10 and  11): 
          0.94(F 10 - 75.81)(1.09) + 77.20      0.91(F 11 - 72.21)(1.10) + 77.20

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12   9    0.920 0.885 0.877 0.850
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.9 73.6 74.7 76.3 78.0 76.6 75.3 76.5 76.0 74.2 77.3 74.4 75.9 74.6 74.8
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
S- 10  1.5  1.1  1.2  1.5  1.7  2.0  1.2  2.2  0.6  0.3  1.0  0.8  0.8  1.4  1.4
S- 13 -0.3 -0.5  0.1 -0.9  0.3  0.5  0.3 -0.4 -0.2 -1.2 -1.0  0.0 -0.7 -0.6 -0.6
S- 12 -1.4 -2.1 -2.0 -2.3 -0.9 -1.1 -1.8 -1.7 -2.0 -3.6 -2.0 -1.9 -1.8 -2.2 -2.1
S-  9  6.7  6.2  6.2  6.5  7.1  5.9  6.2  7.4  5.8  5.9  6.2  6.0  5.5  6.9  7.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.06 0.86 0.88 1.05 1.59 0.88 75.18 74.33 0.84 75.67 74.43 1.24   0.39
     13 -0.59-1.09-0.73-0.41-0.13-0.61       76.22-1.05       76.00-0.34   0.71
     12 -1.94-2.02-2.09-1.79-1.65-2.24       77.28-2.11       77.61-1.94   0.17
      9  6.14 5.87 5.83 6.27 6.56 6.18       69.36 5.82       69.30 6.36   0.55
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.43  1.24                   1.21  1.12 1.09  1.23  1.08 1.14   1.05
     13         1.32                         1.12 1.09        1.23 1.00   0.92
     12         1.09                         0.92 1.31        0.97 1.27   0.97
      9         1.38                         1.36 0.90        1.21 1.02   1.14
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 74.43)(1.14) + 75.67      0.94(F 13 - 76.00)(1.00) + 75.67

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11  12    0.944 0.940 0.919 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.1 70.5 69.6 69.5 68.5 67.9 68.9 69.8 68.8 66.2 69.0 66.5 69.5 67.9 68.1
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2
S- 13 -0.6 -0.6 -0.7 -1.0 -0.4 -0.3 -0.4 -1.4 -0.8 -1.8 -1.5 -1.3 -1.1 -0.7 -0.9
S- 10  1.1  1.2  0.8  1.0  1.3  1.8  0.8  1.2  0.4  0.0  0.3  0.2  0.4  0.6  1.1
S- 11  4.4  4.2  4.0  3.7  5.0  4.8  4.7  4.4  3.6  3.0  3.9  3.2  4.0  3.9  4.2
S- 12 -2.7 -2.1 -3.5 -3.2 -2.5 -2.6 -3.0 -3.6 -3.1 -4.4 -3.5 -3.6 -3.2 -3.0 -3.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -1.08-1.32-1.08-1.15-0.71-1.16 68.95 70.25-1.29 68.72 69.62-0.90   0.39
     10  0.69 0.75 0.65 0.40 1.16 0.44       68.22 0.73       67.92 0.81   0.08
     11  3.86 3.59 3.85 3.83 4.28 3.69       65.38 3.57       64.65 4.08   0.51
     12 -3.01-2.86-2.99-3.06-2.82-3.41       71.85-2.89       71.86-3.14  -0.25
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.59  1.44                   1.47  1.41 1.04  1.18  1.10 1.08   1.03
     10         1.42                         1.31 1.12        1.07 1.11   0.99
     11         1.43                         1.27 1.16        1.04 1.14   0.98
     12         1.30                         1.13 1.30        1.01 1.17   0.90
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.97(F 13 - 69.62)(1.08) + 68.72      0.97(F 10 - 67.92)(1.11) + 68.72

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10   9  11    0.953 0.947 0.936 0.922
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 59.8 60.1 63.4 61.2 58.9 56.9 60.1 61.0 58.8 58.1 59.0 58.4 57.7 57.3 57.9
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
S- 13 -1.1 -1.5 -1.5 -1.9 -1.0 -2.0 -1.0 -1.9 -1.6 -2.2 -2.6 -2.4 -2.0 -1.6 -1.7
S- 10  0.4  0.5  0.3  0.5  0.4  0.4  0.5  0.3 -0.4 -0.5 -1.2 -1.0 -0.5  0.1 -0.1
S-  9  6.2  6.1  5.9  6.3  6.2  5.8  6.7  5.8  5.4  5.1  5.2  4.2  5.7  6.2  6.4
S- 11  4.0  3.5  3.4  2.6  4.4  3.2  4.8  3.8  2.9  2.9  3.0  2.2  3.6  3.3  3.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -1.78-1.76-1.66-2.06-1.50-2.00 59.60 61.38-1.78 59.24 60.96-1.72   0.06
     10  0.07 0.30 0.23-0.25 0.42-0.51       59.27 0.33       59.25-0.02  -0.34
      9  5.79 6.06 5.67 5.61 6.03 5.47       53.73 5.87       53.41 5.82  -0.05
     11  3.38 3.53 3.45 3.12 3.64 3.09       56.22 3.38       55.81 3.43   0.04
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.71  1.52                   0.87  0.79 1.10  1.68  1.60 1.05   0.95
     10         1.52                         0.78 1.11        1.55 1.08   0.97
      9         1.66                         0.90 0.97        1.63 1.03   1.06
     11         1.62                         0.81 1.08        1.72 0.98   0.91
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.98(F 13 - 60.96)(1.05) + 59.24      0.97(F 10 - 59.25)(1.08) + 59.24

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11  56    0.971 0.947 0.946 0.939
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.5 53.3 52.5 50.9 49.0 47.2 47.0 52.5 49.9 47.9 47.6 50.5 46.9 48.1 47.8
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
cd 56 52.3 57.4 56.8 56.1 53.5 52.7 51.5 56.3 54.3 52.4 52.8 55.7 51.6 52.8 52.1
S- 13 -2.2 -2.2 -2.3 -2.5 -1.8 -2.4 -2.3 -2.3 -2.5 -2.7 -3.1 -3.0 -2.8 -2.4 -2.1
S- 10 -0.2  0.0  0.0 -0.2  0.0  0.1  0.5 -0.6 -0.8 -1.1 -1.8 -1.6 -0.7 -0.6 -0.7
S- 11  3.2  2.9  3.2  2.2  3.0  3.2  4.3  3.3  2.8  2.6  2.0  1.5  3.0  2.2  3.2
S- 56 -3.8 -4.1 -4.3 -5.2 -4.6 -5.5 -4.5 -3.8 -4.3 -4.5 -5.2 -5.2 -4.7 -4.8 -4.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -2.46-2.20-2.37-2.84-2.29-2.66 49.37 51.66-2.29 49.31 51.75-2.44  -0.15
     10 -0.36 0.13-0.12-0.89-0.07-1.05       49.29 0.08       49.82-0.51  -0.59
     11  2.89 3.32 2.99 2.51 3.05 2.47       46.20 3.17       46.46 2.84  -0.33
     56 -4.35-3.97-4.02-4.65-4.50-4.72       53.39-4.02       53.89-4.59  -0.57
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.97  1.84                   1.25  1.31 0.95  2.09  2.05 1.02   1.07
     10         1.96                         1.43 0.88        2.11 0.99   1.13
     11         2.00                         1.44 0.86        2.26 0.93   1.07
     56         1.82                         1.22 1.03        1.96 1.07   1.04
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.99(F 13 - 51.75)(1.02) + 49.31      0.97(F 10 - 49.82)(0.99) + 49.31

Station#1860  DANVILLE            , va  4224502    lat/lon 79.38   36.60    17M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11  56    0.965 0.937 0.934 0.932
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.0 42.3 43.9 41.9 41.7 43.2 42.0 45.3 43.7 42.7 39.4 44.6 38.8 41.2 40.6
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0
S- 13 -3.2 -2.8 -2.7 -3.5 -2.6 -3.2 -2.9 -2.7 -2.7 -3.4 -3.8 -3.2 -3.0 -3.4 -4.2
S- 10 -0.1 -0.2 -0.4 -0.6 -0.3 -0.3  0.3 -0.8 -0.8 -1.6 -1.8 -1.8 -0.4 -0.6 -2.9
S- 11  2.8  3.5  3.7  1.0  2.3  2.0  3.9  2.2  2.9  1.4  1.9  1.8  2.3  1.9  0.9
S- 56 -4.9 -4.8 -4.8 -6.9 -5.9 -6.4 -5.2 -4.6 -4.4 -5.7 -6.0 -5.4 -5.8 -6.5 -6.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -3.05-2.70-2.92-3.37-2.98-3.40 42.36 45.11-2.76 42.08 45.23-3.16  -0.40
     10 -0.43 0.35-0.15-0.86-0.37-1.42       42.12 0.24       42.90-0.82  -1.06
     11  2.57 3.21 2.65 2.41 2.52 1.86       39.26 3.10       39.78 2.29  -0.81
     56 -5.19-4.77-4.84-5.30-5.48-5.73       47.11-4.75       47.66-5.58  -0.83
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.25  2.24                   1.63  1.95 0.83  1.81  1.65 1.10   1.32
     10         2.36                         1.90 0.86        1.95 0.93   1.08
     11         2.43                         2.14 0.76        1.87 0.97   1.28
     56         2.30                         2.03 0.80        1.64 1.11   1.38
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.98(F 13 - 45.23)(1.10) + 42.08      0.97(F 10 - 42.90)(0.93) + 42.08

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 40.22 42.92 48.60 56.11 65.06 71.72 75.74 74.12 68.69 58.18 48.68 42.90
1952 42.24 44.20 48.69 55.99 66.43 73.64 77.22 73.85 66.01 57.13 47.81 43.94
1953 42.32 45.53 49.94 58.93 67.48 74.43 76.04 74.31 67.91 58.28 48.75 42.16
1954 41.29 43.91 51.69 57.25 65.62 70.56 75.67 75.29 69.88 59.67 48.17 39.95
1955 37.95 42.63 50.48 58.90 65.25 71.82 75.92 75.55 68.36 57.36 45.80 38.40
1956 37.63 41.79 48.30 55.76 64.60 71.76 75.21 73.48 67.53 57.96 50.88 43.39
1957 42.28 42.74 50.85 58.63 67.69 72.95 74.93 73.80 65.88 57.79 48.16 41.46
1958 36.57 36.52 44.45 54.38 64.28 71.77 75.33 73.81 66.26 57.98 46.62 39.96
1959 37.02 41.84 49.40 58.20 67.15 72.90 76.33 75.16 69.62 59.15 49.37 42.36
1960 39.73 37.99 45.07 53.21 65.58 70.44 75.16 73.90 68.14 58.48 46.77 37.96
1961 35.57 41.42 48.30 54.67 61.50 69.45 74.12 74.01 67.72 59.34 48.12 40.59
1962 37.31 39.63 46.68 56.19 65.50 71.07 72.56 70.47 65.97 56.68 46.51 38.32
1963 34.40 40.02 47.97 58.06 65.31 71.01 74.23 72.00 66.58 58.62 47.09 39.84
1964 35.53 41.25 47.88 57.36 65.90 71.92 74.46 72.01 64.46 56.79 49.05 43.96
1965 40.57 41.15 47.29 57.14 65.96 72.49 74.44 74.06 67.25 58.23 49.15 41.14
1966 37.53 39.52 46.98 55.95 63.67 71.44 74.53 72.54 64.82 55.77 46.53 42.11
1967 38.38 42.12 48.01 55.93 63.46 68.53 72.94 70.36 64.02 53.87 46.59 39.07
1968 35.71 38.83 46.94 56.56 63.78 70.03 74.66 73.37 67.76 59.18 48.65 40.14
1969 36.01 38.28 47.02 56.41 66.83 72.71 75.16 72.60 65.95 56.90 46.61 37.89
1970 35.42 38.32 47.10 56.52 66.57 72.76 75.25 74.75 69.64 60.96 50.16 41.40
1971 38.29 39.95 46.80 54.69 64.40 71.28 74.71 73.35 69.24 60.74 53.71 46.42
1972 43.28 43.21 48.19 56.68 63.46 69.65 72.99 73.14 66.07 56.83 48.52 43.11
1973 40.62 43.30 49.40 57.61 65.38 72.13 76.14 74.69 68.59 59.99 49.48 45.46
1974 42.61 47.23 51.69 59.68 65.29 70.30 73.23 72.44 66.32 57.78 49.30 44.25
1975 42.24 43.62 48.04 56.18 65.40 72.13 75.45 73.54 68.80 60.53 50.92 42.26
1976 41.03 45.90 54.03 59.07 65.82 71.31 74.45 72.98 65.52 55.19 44.61 35.35
1977 34.22 39.61 51.12 60.30 66.29 72.69 75.89 75.99 67.99 59.16 48.46 40.26
1978 33.99 36.09 44.99 55.70 65.27 71.14 75.20 74.28 67.94 59.35 49.54 42.63
1979 35.91 39.31 46.87 58.20 64.49 69.92 73.26 72.65 66.88 59.04 50.12 43.23
1980 37.81 39.28 46.36 56.87 65.84 72.70 76.67 76.94 69.85 58.96 47.69 39.29
1981 38.02 39.80 49.57 56.52 67.40 72.56 75.62 72.30 65.01 56.81 46.34 38.29
1982 36.03 40.35 48.34 57.29 65.25 72.41 74.11 72.70 66.71 58.97 51.48 43.90
1983 40.10 41.58 47.69 56.07 63.82 71.70 76.59 75.54 69.05 59.05 48.06 39.16
1984 37.85 40.48 48.23 54.83 65.26 71.85 75.34 72.28 68.99 59.14 53.19 42.45
1985 40.65 41.40 51.15 59.86 67.41 72.16 74.36 73.12 67.87 61.93 51.19 43.26
1986 38.03 42.03 49.52 58.08 67.15 74.17 76.60 74.65 67.98 59.83 49.67 41.17
1987 37.49 40.33 46.91 56.94 66.34 74.79 78.22 76.58 67.42 57.99 48.33 40.69
1988 36.61 38.16 46.13 54.69 62.94 70.78 75.51 73.61 64.64 54.14 44.68 40.79
1989 38.01 40.87 45.53 53.39 63.45 70.99 74.98 72.75 66.59 57.83 44.28 39.51
1990 38.56 46.25 50.44 56.42 63.70 71.05 74.90 73.36 67.30 59.40 51.32 43.98
1991 41.03 42.56 48.91 57.85 66.39 73.64 75.65 74.26 67.31 57.68 48.78 42.22
1992 40.33 41.20 46.79 53.52 61.60 69.24 73.20 72.99 65.04 56.64 46.53 41.27
1993 37.59 38.83 43.84 54.01 64.46 73.35 76.79 76.01 67.65 57.78 46.50 37.89
1994 34.83 38.22 48.39 55.81 65.27 71.42 75.46 72.84 65.13 57.53 49.80 44.05
1995 39.47 41.21 46.97 55.90 63.68 71.22 75.71 74.10 67.89 56.54 45.94 37.35
1996 35.26 37.46 44.55 53.65 64.81 71.68 75.14 73.09 66.89 56.21 46.98 39.64
1997 39.57 42.38 47.87 53.56 60.50 68.83 73.73 72.85 66.28 56.48 46.98 39.94

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.938 0.914 0.912 0.909
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.1 37.8 40.7 38.0 37.5 36.6 38.0 38.6 41.0 40.3 37.6 34.8 39.5 35.3 39.6
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S- 10 -0.6 -0.7  0.4 -0.9 -0.9 -1.5 -2.7 -2.4 -2.4 -2.4 -2.8 -2.7 -2.0 -2.0 -2.2
S-  9  4.9  6.5  7.8  6.5  5.1  4.5  3.5  4.9  4.7  4.6  3.7  4.5  5.3  4.6  4.1
S-  7  3.9  5.1  5.8  5.7  4.3  3.8  3.0  4.0  3.6  3.9  3.2  4.5  3.7  3.9  2.9
S- 13 -3.2 -3.9 -2.8 -4.5 -4.0 -4.3 -6.3 -6.1 -4.9 -5.6 -5.3 -6.2 -4.2 -5.6 -5.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.91-0.65-0.80-0.30-0.91-2.35 38.71 39.40-0.69 38.36 40.07-1.72  -1.03
      9  5.97 5.95 6.26 6.94 5.75 4.51       32.62 6.09       33.35 5.01  -1.08
      7  4.98 4.97 5.28 5.86 4.70 3.67       33.45 5.26       34.28 4.08  -1.17
     13 -4.23-4.20-4.22-3.56-4.22-5.28       42.99-4.28       43.16-4.80  -0.52
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.49  2.48                   2.60  2.49 1.04  1.81  1.82 0.99   0.95
      9         2.89                         2.99 0.87        1.85 0.98   1.12
      7         2.52                         2.68 0.97        2.00 0.90   0.93
     13         2.54                         2.78 0.93        1.66 1.09   1.16
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 40.07)(0.99) + 38.36      0.96(F  9 - 33.35)(0.98) + 38.36

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  38    0.921 0.911 0.892 0.886
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.6 40.5 41.4 42.0 40.3 38.2 40.9 46.3 42.6 41.2 38.8 38.2 41.2 37.5 42.4
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10 -0.2 -0.2  0.5 -0.5  0.1 -1.7 -2.7 -2.0 -2.4 -2.5 -2.8 -2.6 -1.7 -2.0 -1.8
S- 13 -2.8 -4.6 -3.3 -4.7 -3.6 -4.9 -6.8 -5.1 -5.5 -6.0 -5.9 -7.1 -4.8 -5.9 -6.5
S-  9  5.5  6.6  8.0  6.2  5.0  4.2  2.7  4.2  4.6  4.2  3.6  5.1  5.2  4.6  4.5
S- 38  2.8  4.6  6.6  3.4  1.6  2.3  0.5  2.0  2.5  1.5  1.7  3.3  3.0  2.7  2.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.52-0.31-0.32 0.34-0.56-2.24 41.57 41.89-0.32 40.86 42.35-1.49  -1.16
     13 -4.32-4.20-4.06-3.49-4.36-5.96       45.76-4.19       46.03-5.17  -0.97
      9  6.12 6.37 6.33 7.25 5.67 4.53       35.21 6.36       35.92 4.94  -1.42
     38  3.85 3.85 4.09 5.18 3.25 2.46       37.64 3.93       38.13 2.73  -1.20
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.47  2.45                   2.27  2.14 1.06  2.11  2.25 0.94   0.89
     13         2.57                         2.47 0.92        2.21 0.96   1.04
      9         2.79                         2.46 0.92        2.36 0.89   0.97
     38         3.03                         2.71 0.84        2.54 0.83   0.99
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 42.35)(0.94) + 40.86      0.95(F 13 - 46.03)(0.96) + 40.86

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  38  13    0.865 0.850 0.848 0.847
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 47.7 48.2 51.2 49.5 46.9 46.1 45.5 50.4 48.9 46.8 43.8 48.4 47.0 44.5 47.9
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10  0.4  0.6  0.8  0.0  0.6 -1.4 -2.5 -1.9 -2.3 -2.3 -2.3 -1.8 -1.6 -1.8 -1.5
S-  9  5.8  6.8  7.5  5.4  5.0  4.2  3.4  4.2  3.7  3.6  3.9  4.8  4.8  4.7  4.5
S- 38  3.2  4.2  5.3  2.6  1.4  2.3  0.7  2.1  1.0  0.6  1.8  2.8  1.9  3.0  2.1
S- 13 -2.4 -3.1 -2.6 -4.7 -3.1 -5.0 -6.7 -5.0 -5.9 -5.7 -5.2 -5.6 -5.6 -5.5 -5.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.13-0.12 0.24 0.83-0.18-1.97 48.37 48.40-0.02 47.53 48.67-1.14  -1.12
      9  5.93 6.21 6.03 7.00 5.63 4.30       42.19 6.18       42.70 4.83  -1.35
     38  3.30 3.59 3.26 4.33 3.02 1.89       44.93 3.44       45.19 2.33  -1.11
     13 -3.90-3.74-3.79-2.97-3.92-5.61       52.13-3.75       52.32-4.79  -1.03
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.07  1.97                   1.93  1.95 0.99  1.98  1.80 1.10   1.11
      9         2.04                         2.10 0.92        1.69 1.17   1.27
     38         2.21                         2.29 0.84        1.81 1.09   1.29
     13         1.96                         2.04 0.95        1.92 1.03   1.09
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.93(F 10 - 48.67)(1.10) + 47.53      0.92(F  9 - 42.70)(1.17) + 47.53

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  38   7    0.849 0.841 0.823 0.812
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.1 54.8 59.9 58.1 56.9 54.7 53.4 56.4 57.8 53.5 54.0 55.8 55.9 53.7 53.6
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
S-  9  6.3  6.6  6.2  5.4  5.0  3.7  3.4  4.3  2.7  3.5  4.2  5.3  4.3  4.5  4.8
S- 10  0.6  0.5  0.7  0.4  1.0 -1.0 -1.8 -1.5 -2.1 -1.6 -1.6 -1.4 -1.4 -1.3 -1.5
S- 38  4.0  4.5  3.4  2.7  1.5  1.5  0.4  2.2 -0.2  0.7  2.2  3.1  1.5  2.1  2.3
S-  7  4.8  5.6  5.1  4.4  4.2  2.8  2.5  3.5  2.3  3.6  3.1  3.9  3.5  3.6  2.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  5.43 5.60 5.40 6.33 5.27 4.18 56.72 51.18 5.53 55.64 50.97 4.67  -0.86
     10  0.04-0.18 0.41 0.99 0.05-1.55       56.76-0.05       56.44-0.80  -0.75
     38  2.72 2.82 2.53 3.66 2.59 1.68       54.02 2.69       53.51 2.13  -0.57
      7  4.64 4.60 5.17 5.44 4.31 3.26       52.01 4.71       51.92 3.71  -1.00
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.78  1.68                   1.68  1.70 0.98  1.88  1.83 1.03   1.04
     10         1.52                         1.54 1.09        1.62 1.17   1.07
     38         1.82                         1.74 0.96        2.05 0.92   0.95
      7         1.59                         1.43 1.17        1.74 1.09   0.93
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.92(F  9 - 50.97)(1.03) + 55.64      0.92(F 10 - 56.44)(1.17) + 55.64

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13   7    0.876 0.870 0.854 0.834
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 63.8 65.3 67.4 67.2 66.3 62.9 63.5 63.7 66.4 61.6 64.5 65.3 63.7 64.8 60.5
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
S- 10  0.7  0.7  0.7  0.4  0.9 -0.8 -1.2 -1.3 -1.5 -1.2 -0.9 -1.1 -1.3 -0.5 -1.2
S-  9  5.8  5.7  6.2  5.4  5.3  3.6  5.0  4.3  2.6  3.6  4.5  4.7  3.9  4.5  4.3
S- 13 -1.6 -1.4 -1.6 -2.8 -1.8 -3.6 -3.2 -4.1 -3.6 -3.6 -3.0 -3.0 -4.4 -3.2 -3.4
S-  7  3.7  4.3  4.6  4.1  4.0  2.0  2.3  2.4  1.7  2.6  2.7  2.2  2.7  3.5  1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.06-0.18 0.30 0.76 0.16-1.09 65.55 65.60-0.04 64.45 64.96-0.51  -0.46
      9  5.08 5.04 4.84 5.79 5.36 4.03       60.56 4.99       59.81 4.64  -0.35
     13 -2.71-3.18-2.72-1.96-2.47-3.46       68.64-3.08       67.41-2.96   0.13
      7  3.62 3.68 3.81 4.16 3.68 2.41       61.88 3.67       61.50 2.95  -0.72
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.58  1.42                   1.44  1.39 1.04  1.89  1.58 1.19   1.15
      9         1.51                         1.56 0.92        1.75 1.08   1.16
     13         1.50                         1.36 1.06        1.66 1.14   1.07
      7         1.33                         1.27 1.13        1.46 1.29   1.14
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.94(F 10 - 64.96)(1.19) + 64.45      0.93(F  9 - 59.81)(1.08) + 64.45

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  11  13    0.920 0.887 0.872 0.861
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.7 71.8 72.2 74.2 74.8 70.8 71.0 71.1 73.6 69.2 73.3 71.4 71.2 71.7 68.8
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
S- 10  0.4  0.4  0.4  0.2  0.8 -0.5 -0.8 -1.1 -1.1 -0.8 -0.5 -0.9 -1.0  0.0 -0.9
S-  9  5.5  5.7  5.6  5.7  5.2  3.6  4.6  4.7  3.2  4.1  5.1  4.8  4.0  5.2  4.3
S- 11  3.6  4.2  3.6  3.3  3.7  2.8  3.8  2.4  2.7  2.4  3.0  3.4  2.5  2.6  2.4
S- 13 -1.9 -1.2 -1.7 -2.6 -1.0 -2.1 -1.9 -3.5 -2.2 -2.9 -2.8 -2.1 -3.1 -3.0 -2.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.13-0.34-0.14 0.34 0.03-0.73 71.86 72.15-0.28 71.79 72.15-0.36  -0.07
      9  4.76 4.62 4.39 5.14 5.13 4.39       67.31 4.55       67.04 4.75   0.20
     11  2.93 2.43 2.67 3.43 3.32 2.71       69.39 2.47       68.69 3.10   0.63
     13 -2.30-2.87-2.31-1.73-2.04-2.69       74.61-2.75       74.11-2.32   0.42
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.39  1.30                   1.25  1.15 1.08  1.60  1.40 1.15   1.06
      9         1.42                         1.45 0.86        1.53 1.05   1.22
     11         1.47                         1.43 0.87        1.45 1.10   1.27
     13         1.48                         1.32 0.95        1.49 1.08   1.14
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 72.15)(1.15) + 71.79      0.94(F  9 - 67.04)(1.05) + 71.79

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  11   9  13    0.924 0.859 0.855 0.848
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.6 75.3 74.4 76.6 78.2 75.5 75.0 74.9 75.7 73.2 76.8 75.5 75.7 75.1 73.7
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
S- 10  0.5  0.2  0.0  0.0  0.7 -0.5 -0.9 -0.9 -1.1 -0.8 -0.4 -0.8 -0.8  0.4 -0.3
S- 11  3.8  3.6  3.2  3.0  4.5  2.9  3.4  2.8  3.0  3.0  2.9  3.4  2.6  3.7  3.0
S-  9  5.2  4.9  5.2  5.6  5.5  3.4  4.2  4.6  3.7  4.7  4.7  4.2  3.3  5.4  4.6
S- 13 -1.5 -1.2 -1.9 -2.7 -0.8 -1.9 -1.8 -3.2 -1.9 -2.6 -2.5 -1.6 -2.1 -1.7 -1.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.28-0.21-0.48-0.11-0.10-0.55 75.16 75.44-0.28 75.48 75.81-0.33  -0.05
     11  3.06 2.75 2.88 3.35 3.22 3.09       72.39 2.77       72.21 3.26   0.50
      9  4.65 4.74 4.30 4.87 4.93 4.36       70.51 4.65       70.87 4.61  -0.04
     13 -2.03-2.39-2.07-1.69-1.95-2.03       77.48-2.32       77.42-1.94   0.38
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.17  1.07                   1.08  0.93 1.15  1.21  1.08 1.12   0.97
     11         1.21                         1.17 0.92        1.06 1.14   1.24
      9         1.17                         1.06 1.01        1.25 0.97   0.96
     13         1.24                         1.16 0.93        1.16 1.05   1.13
Suggested regression eqns from two most closely related CDs ( 10 and  11): 
          0.96(F 10 - 75.81)(1.12) + 75.48      0.93(F 11 - 72.21)(1.14) + 75.48

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12   9    0.953 0.889 0.876 0.863
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.5 72.3 73.1 74.7 76.6 73.6 72.8 73.4 74.3 73.0 76.0 72.8 74.1 73.1 72.8
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
S- 10  0.2 -0.3 -0.3 -0.2  0.3 -1.0 -1.3 -0.9 -1.1 -0.9 -0.3 -0.8 -1.0 -0.1 -0.6
S- 13 -1.6 -1.8 -1.4 -2.5 -1.1 -2.5 -2.2 -3.6 -1.9 -2.4 -2.3 -1.6 -2.5 -2.0 -2.6
S- 12 -2.8 -3.5 -3.5 -4.0 -2.3 -4.1 -4.3 -4.9 -3.8 -4.8 -3.3 -3.5 -3.6 -3.7 -4.1
S-  9  5.4  4.8  4.6  4.8  5.7  2.9  3.7  4.3  4.1  4.7  4.8  4.5  3.7  5.4  5.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.58-0.49-0.92-0.44-0.41-0.69 73.72 74.33-0.61 73.87 74.43-0.56   0.05
     13 -2.24-2.45-2.53-1.90-2.12-2.19       76.22-2.50       76.00-2.14   0.37
     12 -3.58-3.37-3.89-3.28-3.64-3.81       77.28-3.56       77.61-3.74  -0.18
      9  4.49 4.52 4.03 4.79 4.57 4.61       69.36 4.36       69.30 4.57   0.21
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.37  1.24                   1.30  1.12 1.16  1.26  1.08 1.16   1.00
     13         1.32                         1.12 1.16        1.23 1.02   0.88
     12         1.09                         0.92 1.40        0.97 1.30   0.93
      9         1.38                         1.36 0.96        1.21 1.04   1.09
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.98(F 10 - 74.43)(1.16) + 73.87      0.94(F 13 - 76.00)(1.02) + 73.87

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  11   9    0.945 0.903 0.892 0.885
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.1 69.0 67.9 68.0 67.4 64.6 66.6 67.3 67.3 65.0 67.7 65.1 67.9 66.9 66.3
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
S- 10  0.1 -0.3 -0.9 -0.6  0.2 -1.5 -1.5 -1.3 -1.1 -1.1 -1.0 -1.2 -1.2 -0.4 -0.8
S- 13 -1.6 -2.1 -2.4 -2.5 -1.5 -3.6 -2.7 -3.8 -2.3 -2.9 -2.8 -2.7 -2.7 -1.8 -2.8
S- 11  3.3  2.8  2.3  2.2  3.8  1.5  2.4  2.0  2.1  1.9  2.6  1.7  2.3  2.8  2.4
S-  9  5.4  4.7  4.2  4.7  5.5  3.3  4.0  4.2  3.8  4.0  4.4  3.8  3.7  4.8  5.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.80-0.80-1.13-0.56-0.60-0.98 67.35 68.22-0.87 67.07 67.92-0.85   0.02
     13 -2.58-2.87-2.85-2.11-2.48-2.58       70.25-2.89       69.62-2.55   0.34
     11  2.36 2.04 2.07 2.88 2.51 2.28       65.38 1.97       64.65 2.42   0.45
      9  4.43 4.39 3.99 4.93 4.52 4.25       63.15 4.20       62.70 4.37   0.17
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.51  1.42                   1.45  1.31 1.10  1.29  1.07 1.21   1.10
     13         1.44                         1.41 1.03        1.10 1.17   1.14
     11         1.43                         1.27 1.14        1.04 1.24   1.09
      9         1.50                         1.33 1.09        1.10 1.18   1.08
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.97(F 10 - 67.92)(1.21) + 67.07      0.95(F 13 - 69.62)(1.17) + 67.07

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.923 0.893 0.887 0.879
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 59.0 59.1 61.9 59.8 58.0 54.1 57.8 59.4 57.7 56.6 57.8 57.5 56.5 56.2 56.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
S- 10 -0.4 -0.4 -1.2 -0.8 -0.4 -2.3 -1.8 -1.3 -1.5 -1.9 -2.4 -1.9 -1.7 -1.1 -1.5
S-  9  5.4  5.2  4.4  5.0  5.3  3.1  4.4  4.3  4.2  3.7  4.1  3.3  4.5  5.1  5.0
S-  7  2.6  3.0  3.4  4.1  3.3  0.7  2.0  2.2  2.0  2.5  2.6  1.4  1.3  2.3  1.8
S- 13 -1.9 -2.4 -3.0 -3.2 -1.8 -4.7 -3.3 -3.4 -2.7 -3.6 -3.7 -3.3 -3.2 -2.8 -3.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.08-1.18-1.18-0.59-0.91-1.70 58.11 59.27-1.16 57.88 59.25-1.38  -0.21
      9  4.64 4.57 4.26 5.27 4.69 4.28       53.73 4.38       53.41 4.46   0.09
      7  2.44 2.24 2.02 3.13 2.67 2.00       55.94 2.17       55.53 2.35   0.18
     13 -2.93-3.24-3.07-2.40-2.83-3.19       61.38-3.27       60.96-3.08   0.19
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.64  1.52                   0.85  0.78 1.09  1.78  1.55 1.15   1.06
      9         1.66                         0.90 0.94        1.63 1.09   1.16
      7         1.45                         1.11 0.77        1.28 1.40   1.82
     13         1.52                         0.79 1.07        1.60 1.11   1.04
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 59.25)(1.15) + 57.88      0.95(F  9 - 53.41)(1.09) + 57.88

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.933 0.930 0.913 0.912
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.1 53.2 51.2 49.7 48.3 44.7 44.3 51.3 48.8 46.5 46.5 49.8 45.9 47.0 47.0
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S- 10 -0.6 -0.1 -1.4 -1.4 -0.6 -2.4 -2.2 -1.8 -2.0 -2.5 -2.9 -2.2 -1.6 -1.7 -1.6
S-  9  5.9  5.5  5.3  5.2  4.8  3.5  4.9  4.6  4.3  3.7  3.6  3.5  4.9  4.3  4.7
S-  7  3.3  4.2  4.4  3.8  3.3  1.2  2.8  2.4  2.3  2.1  1.8  2.0  2.5  2.3  1.8
S- 38  3.8  3.8  3.8  3.6  2.9  0.9  3.0  3.1  2.2  1.8  2.3  1.1  3.4  1.8  2.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.20-1.35-1.11-0.58-1.13-2.07 48.06 49.29-1.23 48.15 49.82-1.67  -0.44
      9  4.96 4.85 4.93 5.66 4.98 4.15       43.22 4.85       43.56 4.59  -0.26
      7  3.05 2.76 3.12 3.79 3.16 2.13       45.16 2.90       45.46 2.69  -0.21
     38  2.89 2.68 2.85 3.60 2.92 2.17       45.35 2.71       45.48 2.67  -0.04
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.06  1.96                   1.29  1.43 0.90  2.45  2.11 1.16   1.29
      9         2.15                         1.54 0.84        2.26 1.09   1.30
      7         1.92                         1.48 0.87        1.99 1.23   1.42
     38         2.17                         1.48 0.87        2.20 1.11   1.28
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 49.82)(1.16) + 48.15      0.96(F  9 - 43.56)(1.09) + 48.15

Station#1861  FARMVILLE/2 N       , va  4294102    lat/lon 78.38   37.30    26M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  11    0.935 0.922 0.913 0.894
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.2 42.5 43.3 41.2 40.7 40.8 39.5 44.0 42.2 41.3 37.9 44.0 37.3 39.6 39.9
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
S- 10 -1.0 -0.1 -1.0 -1.3 -1.3 -2.6 -2.2 -2.0 -2.3 -3.0 -3.3 -2.3 -1.8 -2.1 -3.6
S- 13 -4.0 -2.6 -3.3 -4.2 -3.7 -5.6 -5.4 -4.0 -4.2 -4.8 -5.3 -3.7 -4.5 -4.9 -4.9
S-  9  5.9  6.7  6.6  5.3  4.3  2.8  5.2  4.5  5.1  3.3  4.2  4.2  4.7  4.5  2.6
S- 11  1.9  3.6  3.1  0.3  1.2 -0.4  1.4  0.9  1.4  0.0  0.4  1.3  0.8  0.4  0.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.21-1.08-0.94-0.51-1.29-2.64 41.09 42.12-1.03 40.89 42.90-2.01  -0.97
     13 -3.83-4.14-3.71-3.01-3.90-4.63       45.11-4.03       45.23-4.34  -0.31
      9  5.50 5.61 5.78 6.43 5.19 4.09       35.43 5.66       36.24 4.65  -1.01
     11  1.80 1.78 1.86 2.77 1.59 0.64       39.26 1.83       39.78 1.11  -0.72
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.33  2.36                   1.95  1.90 1.03  1.98  1.95 1.01   0.99
     13         2.24                         1.95 1.00        1.65 1.20   1.20
      9         2.64                         2.20 0.89        2.10 0.94   1.06
     11         2.43                         2.14 0.91        1.87 1.06   1.16
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.97(F 10 - 42.90)(1.01) + 40.89      0.96(F 13 - 45.23)(1.20) + 40.89

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 36.70 39.28 44.29 51.72 60.58 67.55 71.33 70.05 65.26 54.14 44.91 38.92
1952 39.14 40.84 45.18 52.89 63.45 70.35 72.97 69.29 61.48 52.89 44.43 40.82
1953 39.25 41.87 46.23 55.34 63.92 70.44 71.80 70.03 65.18 56.53 47.26 39.81
1954 38.37 40.29 47.70 52.70 61.64 66.71 72.02 71.81 66.24 55.78 44.22 35.88
1955 34.73 38.67 47.10 55.56 61.52 67.17 70.22 70.69 64.87 54.99 44.09 35.43
1956 34.58 38.45 44.83 52.12 59.97 67.06 70.24 68.89 63.52 53.93 48.61 41.75
1957 41.37 39.63 46.88 54.03 63.36 68.68 70.84 69.57 62.13 54.10 44.95 38.01
1958 32.06 31.92 39.58 50.54 60.05 66.91 69.87 68.44 61.62 53.85 43.58 37.03
1959 33.99 37.29 44.41 53.09 61.51 67.30 70.00 69.40 64.37 54.61 45.63 38.40
1960 35.35 31.94 38.47 46.60 59.96 64.91 69.58 68.71 63.58 54.30 42.24 34.10
1961 32.19 38.50 44.22 49.99 55.88 63.31 68.10 68.58 62.80 54.52 44.13 37.39
1962 35.50 36.87 42.40 50.50 59.80 66.14 68.14 65.92 61.28 51.22 41.18 33.23
1963 29.54 34.70 42.73 52.36 59.26 63.86 66.92 65.47 60.65 52.69 41.31 34.39
1964 30.10 35.15 41.85 51.74 60.83 66.11 68.73 66.27 59.41 51.83 44.02 39.01
1965 35.46 35.87 42.25 51.85 60.38 65.83 67.45 67.23 61.03 52.93 43.84 36.08
1966 32.34 34.19 41.44 50.14 57.72 65.06 67.87 66.51 59.40 51.04 42.30 37.84
1967 33.98 37.77 43.75 51.98 58.22 62.81 66.23 64.04 58.29 49.41 43.01 35.55
1968 31.78 34.08 41.74 51.17 58.28 64.34 68.73 66.91 61.29 52.25 42.33 34.88
1969 31.76 33.63 40.75 49.54 60.07 66.73 69.06 66.97 60.21 51.27 40.93 32.40
1970 30.38 33.91 43.12 51.68 60.00 65.54 68.20 68.64 63.32 54.68 44.73 36.84
1971 34.30 35.00 41.11 48.22 57.94 64.30 67.95 67.08 63.70 55.11 47.52 40.34
1972 37.52 37.23 41.70 49.85 56.53 62.53 65.96 66.35 60.10 51.14 43.58 37.57
1973 35.02 37.56 43.43 51.03 57.49 63.97 68.32 67.62 62.34 54.13 43.99 40.88
1974 38.29 42.41 45.03 52.59 57.94 63.41 66.27 65.46 59.03 50.23 41.59 37.55
1975 36.10 38.14 41.85 50.08 58.68 65.40 68.28 67.00 62.31 53.72 44.75 36.46
1976 35.37 39.35 46.57 51.71 57.73 63.28 65.93 64.07 57.37 47.69 38.49 28.94
1977 27.56 32.72 43.87 53.08 58.74 64.99 67.83 67.92 60.60 52.48 42.18 33.61
1978 27.41 29.77 39.27 49.38 58.37 64.03 68.50 68.22 62.06 54.01 44.21 37.04
1979 31.30 34.57 42.26 52.19 58.34 63.84 67.09 66.49 60.63 52.95 44.63 39.04
1980 34.01 34.78 40.42 50.09 58.54 65.28 69.13 69.54 62.55 52.50 41.97 34.25
1981 32.32 33.90 43.10 50.21 60.53 65.78 69.40 66.63 59.61 51.25 40.73 33.31
1982 31.49 36.09 42.78 50.90 58.42 65.93 67.67 65.87 59.90 52.16 45.27 37.91
1983 34.29 35.48 41.44 49.50 56.80 64.40 69.04 68.06 61.88 52.48 42.06 34.35
1984 32.98 35.90 42.11 48.40 57.88 64.59 68.19 65.56 62.56 52.92 47.20 36.25
1985 34.49 35.39 44.55 53.39 60.51 65.69 67.79 66.19 61.82 56.59 46.77 38.49
1986 34.01 37.87 45.33 52.48 60.71 67.07 69.73 68.46 62.22 54.62 44.91 36.75
1987 32.87 35.47 41.82 51.36 59.97 67.60 70.44 68.89 60.79 51.98 43.42 36.40
1988 32.80 34.60 42.57 50.43 57.63 63.98 68.52 67.73 59.79 50.36 40.94 38.24
1989 36.08 39.64 43.40 49.70 57.44 64.34 68.66 67.07 61.50 52.92 40.48 36.14
1990 36.01 43.28 46.71 52.46 59.27 65.95 69.08 67.79 62.50 54.71 47.12 40.26
1991 37.87 39.49 45.81 54.04 61.27 67.33 68.96 67.82 61.69 52.71 44.79 38.72
1992 37.87 38.93 43.89 49.45 56.41 63.45 66.95 66.83 60.15 52.73 43.18 38.46
1993 34.77 36.27 40.64 49.59 58.82 66.61 69.89 69.44 62.28 53.23 42.18 34.23
1994 31.40 35.43 44.39 51.15 59.70 65.02 69.64 66.85 60.63 53.43 46.07 39.89
1995 35.51 37.53 43.44 51.82 59.31 65.78 69.95 68.32 62.48 51.77 41.76 33.84
1996 32.48 34.59 41.46 50.27 60.00 66.25 68.32 66.37 60.34 50.02 41.95 35.45
1997 35.89 38.91 43.88 49.53 55.36 63.15 66.96 66.62 60.38 50.78 41.34 34.75

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  56   9    0.970 0.962 0.956 0.951
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 34.3 33.0 34.5 34.0 32.9 32.8 36.1 36.0 37.9 37.9 34.8 31.4 35.5 32.5 35.9
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5
cd 56 45.8 43.4 45.6 45.2 44.6 44.3 47.5 47.0 47.9 48.0 45.8 44.0 46.4 43.8 47.4
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
S- 13 -9.0 -8.8 -9.0 -8.6 -8.6 -8.1 -8.2 -8.6 -8.0 -8.1 -8.1 -9.7 -8.2 -8.4 -8.8
S- 11 -4.3 -2.5 -2.1 -1.8 -4.2 -3.0 -2.6 -2.1 -2.6 -2.4 -3.6 -3.9 -2.9 -2.7 -3.6
S- 56-11.5-10.5-11.1-11.2-11.8-11.5-11.4-11.0-10.0-10.1-11.0-12.6-10.9-11.3-11.5
S-  9 -0.9  1.6  1.6  2.5  0.5  0.6  1.6  2.3  1.5  2.1  0.9  1.1  1.3  1.9  0.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.37-7.37-8.56-8.87-8.62-8.47 35.22 42.99-7.76 34.62 43.16-8.54  -0.77
     11 -2.67-1.68-2.89-2.92-2.87-3.11       37.27-2.05       37.59-2.96  -0.91
     56 *****-9.89********************       45.48*****       45.78*****  -0.90
      9  1.83 2.78 1.92 1.63 1.35 1.33       32.62 2.60       33.35 1.27  -1.33
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.93  2.54                   3.28  2.78 1.18  1.86  1.66 1.12   0.95
     11         2.77                         3.08 1.07        1.75 1.07   1.00
     56         2.68                         3.06 1.07        1.49 1.25   1.17
      9         2.89                         2.99 1.10        1.85 1.01   0.92
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.99(F 13 - 43.16)(1.12) + 34.62      0.98(F 11 - 37.59)(1.07) + 34.62

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  50  56    0.980 0.975 0.970 0.969
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 35.5 35.9 35.4 37.9 35.5 34.6 39.6 43.3 39.5 38.9 36.3 35.4 37.5 34.6 38.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3
cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2
cd 56 46.3 47.2 46.8 49.6 47.1 45.9 51.3 53.4 50.3 49.5 47.6 48.0 49.1 45.7 52.0
S- 13 -8.9 -9.2 -9.3 -8.8 -8.4 -8.5 -8.0 -8.1 -8.5 -8.2 -8.5 -9.9 -8.5 -8.8-10.0
S- 11 -4.1 -2.9 -2.2 -2.5 -4.4 -3.2 -3.5 -2.2 -2.8 -2.8 -3.7 -3.3 -3.2 -2.8 -4.4
S- 50 -6.4 -4.7 -3.9 -5.8 -7.8 -5.7 -5.2 -4.7 -4.9 -5.2 -5.4 -5.5 -5.9 -5.2 -6.3
S- 56-10.8-11.3-11.4-11.7-11.6-11.3-11.6-10.1-10.8-10.6-11.4-12.5-11.6-11.1-13.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.70-8.19-8.65-9.09-8.72-8.92 37.42 45.76-8.35 37.25 46.03-8.78  -0.43
     11 -2.99-2.38-3.09-3.10-3.18-3.30       40.04-2.62       40.46-3.20  -0.59
     50 -5.24-4.88-5.17-5.16-5.60-5.48       42.38-4.97       42.76-5.50  -0.54
     56 ******************************       48.28*****       48.65*****  -0.54
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.84  2.57                   2.91  2.47 1.18  2.35  2.21 1.07   0.90
     11         2.71                         2.61 1.12        2.27 1.03   0.93
     50         3.00                         2.97 0.98        2.32 1.02   1.04
     56         2.71                         2.62 1.11        2.24 1.05   0.94
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.99(F 13 - 46.03)(1.07) + 37.25      0.99(F 11 - 40.46)(1.03) + 37.25

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  56   9    0.954 0.943 0.936 0.932
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.4 42.1 44.5 45.3 41.8 42.6 43.4 46.7 45.8 43.9 40.6 44.4 43.4 41.5 43.9
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd 11 44.9 45.5 47.2 48.4 45.7 45.7 47.3 49.7 48.9 47.2 43.7 47.9 47.0 43.6 48.2
cd 56 51.9 53.3 55.4 56.4 52.8 53.5 55.2 57.1 57.0 54.6 50.9 56.2 55.1 51.5 56.2
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
S- 13 -8.7 -9.2 -9.2 -8.9 -8.2 -8.5 -8.8 -8.7 -9.0 -8.6 -8.4 -9.6 -9.1 -8.6 -9.8
S- 11 -3.4 -3.4 -2.6 -3.0 -3.8 -3.1 -3.9 -3.0 -3.1 -3.3 -3.1 -3.5 -3.5 -2.2 -4.3
S- 56-10.4-11.2-10.9-11.0-11.0-11.0-11.8-10.4-11.2-10.7-10.3-11.8-11.7-10.1-12.3
S-  9 -0.5  0.7  0.9  1.2 -0.1  0.6  1.2  0.5  0.6  0.7  0.7  0.8  1.2  1.6  0.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.76-8.02-8.78-9.17-8.89-9.01 43.87 52.13-8.25 43.43 52.32-8.89  -0.63
     11 -3.15-2.26-3.46-3.42-3.41-3.27       46.55-2.68       46.72-3.29  -0.61
     56 ******************************       54.36*****       54.48*****  -0.56
      9  1.08 1.93 1.03 0.80 0.66 0.90       42.19 1.68       42.70 0.73  -0.96
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.12  1.96                   2.59  2.04 1.27  1.70  1.92 0.89   0.70
     11         1.92                         2.12 1.22        1.76 0.96   0.79
     56         1.98                         2.07 1.25        1.96 0.87   0.69
      9         2.04                         2.10 1.23        1.69 1.01   0.82
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.98(F 13 - 52.32)(0.89) + 43.43      0.97(F 11 - 46.72)(0.96) + 43.43

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  10  56    0.929 0.904 0.889 0.883
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 49.5 48.4 53.4 52.5 51.4 50.4 49.7 52.5 54.0 49.5 49.6 51.2 51.8 50.3 49.5
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 56 59.3 59.9 63.0 62.6 61.4 60.9 61.2 62.2 64.4 59.9 58.8 62.0 63.5 59.9 61.1
S- 13 -8.6 -9.6 -8.4 -8.7 -8.0 -8.5 -8.9 -8.5 -8.8 -8.5 -8.3 -9.3 -9.7 -8.3 -9.5
S- 11 -3.0 -3.7 -2.6 -3.0 -3.7 -3.3 -4.0 -2.9 -3.6 -3.4 -2.8 -2.8 -3.8 -2.5 -3.6
S- 10 -6.0 -5.9 -5.8 -5.2 -4.6 -5.3 -5.5 -5.5 -5.9 -5.7 -6.0 -6.1 -5.5 -4.6 -5.5
S- 56 -9.8-11.5 -9.6-10.2-10.1-10.5-11.5 -9.8-10.4-10.4 -9.2-10.8-11.7 -9.6-11.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.61-7.80-8.68-8.99-8.78-8.89 52.07 60.19-8.12 50.90 59.67-8.76  -0.64
     11 -3.16-2.12-3.54-3.49-3.44-3.21       54.68-2.61       54.16-3.25  -0.64
     10 -5.22-4.46-4.98-5.68-5.48-5.61       56.76-4.70       56.44-5.53  -0.84
     56 *****-9.46********************       61.83-9.77       61.35*****  -0.68
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.77  1.53                   2.13  1.59 1.34  1.59  1.57 1.01   0.76
     11         1.54                         1.66 1.28        1.58 1.01   0.79
     10         1.52                         1.54 1.39        1.62 0.98   0.71
     56         1.54                         1.59 1.34        1.57 1.01   0.76
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.96(F 13 - 59.67)(1.01) + 50.90      0.95(F 11 - 54.16)(1.01) + 50.90

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  56  10    0.926 0.904 0.888 0.867
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.8 57.9 60.5 60.7 60.0 57.6 57.4 59.3 61.3 56.4 58.8 59.7 59.3 60.0 55.4
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd 56 66.4 67.9 69.7 70.8 69.3 68.3 67.7 69.0 70.9 66.6 67.8 69.1 69.3 68.9 65.1
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
S- 13 -8.6 -8.8 -8.5 -9.3 -8.1 -8.9 -9.2 -8.6 -8.7 -8.8 -8.7 -8.6 -8.8 -8.1 -8.5
S- 11 -3.2 -3.5 -2.6 -3.6 -3.4 -3.8 -3.1 -2.8 -3.8 -3.8 -3.1 -3.0 -3.1 -2.5 -3.2
S- 56 -9.6-10.0 -9.2-10.1 -9.3-10.6-10.3 -9.7 -9.6-10.2 -9.0 -9.4-10.0 -8.9 -9.7
S- 10 -6.4 -6.7 -6.2 -6.0 -5.4 -6.1 -7.2 -5.8 -6.6 -6.3 -6.6 -6.6 -5.7 -5.3 -6.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.50-7.50-8.52-9.09-8.82-8.58 60.81 68.64-7.83 58.74 67.41-8.67  -0.84
     11 -3.15-1.92-3.60-3.71-3.35-3.21       63.26-2.46       61.96-3.22  -0.77
     56 -9.64-8.57-9.77*****-9.89-9.55       69.76-8.95       68.44-9.71  -0.75
     10 -5.73-4.50-5.50-6.38-6.20-6.21       65.60-4.79       64.96-6.22  -1.43
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.87  1.50                   1.91  1.36 1.41  1.68  1.66 1.01   0.72
     11         1.51                         1.45 1.32        1.64 1.02   0.77
     56         1.46                         1.32 1.45        1.53 1.10   0.75
     10         1.42                         1.39 1.37        1.58 1.06   0.77
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.96(F 13 - 67.41)(1.01) + 58.74      0.95(F 11 - 61.96)(1.02) + 58.74

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  50  38    0.905 0.897 0.859 0.854
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.4 64.6 65.7 67.1 67.6 64.0 64.3 65.9 67.3 63.5 66.6 65.0 65.8 66.3 63.2
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
cd 50 71.2 71.0 72.3 74.4 75.0 72.4 70.6 71.5 74.4 70.3 73.2 71.0 72.0 72.7 69.8
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
S- 11 -3.7 -3.1 -2.8 -3.8 -3.5 -4.0 -2.9 -2.7 -3.6 -3.4 -3.7 -3.0 -3.0 -2.9 -3.3
S- 13 -9.2 -8.5 -8.2 -9.7 -8.2 -8.9 -8.6 -8.6 -8.5 -8.7 -9.5 -8.5 -8.5 -8.4 -8.3
S- 50 -6.8 -6.4 -6.6 -7.4 -7.4 -8.4 -6.2 -5.5 -7.0 -6.9 -6.6 -6.0 -6.2 -6.4 -6.7
S- 38 -4.8 -3.9 -3.5 -4.7 -4.7 -6.0 -3.8 -2.8 -5.7 -3.8 -3.8 -4.0 -4.0 -3.2 -3.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -3.19-2.06-3.49-3.79-3.39-3.26 66.82 69.39-2.57 65.41 68.69-3.28  -0.70
     13 -8.43-7.36-8.48-8.95-8.75-8.66       74.61-7.79       74.11-8.70  -0.91
     50 -6.65-5.60-6.91-7.41-6.77-6.54       72.92-6.10       72.11-6.70  -0.59
     38 -4.12-2.99-4.45-4.88-4.21-4.04       70.33-3.51       69.57-4.16  -0.65
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.78  1.47                   1.94  1.43 1.36  1.36  1.45 0.94   0.69
     13         1.48                         1.32 1.47        1.49 0.92   0.62
     50         1.56                         1.61 1.21        1.53 0.89   0.74
     38         1.56                         1.61 1.20        1.65 0.82   0.68
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.95(F 11 - 68.69)(0.94) + 65.41      0.95(F 13 - 74.11)(0.92) + 65.41

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  50  38    0.878 0.859 0.836 0.823
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.0 68.2 67.8 69.7 70.4 68.5 68.7 69.1 69.0 66.9 69.9 69.6 69.9 68.3 67.0
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
cd 50 76.7 74.9 75.1 76.9 77.5 77.2 74.6 75.7 76.3 73.1 77.3 75.2 76.5 74.8 74.2
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
S- 11 -3.8 -3.5 -3.4 -3.8 -3.2 -4.1 -2.9 -3.0 -3.7 -3.2 -4.0 -2.4 -3.1 -3.2 -3.8
S- 13 -9.0 -8.3 -8.5 -9.5 -8.6 -8.9 -8.1 -9.0 -8.6 -8.8 -9.4 -7.4 -7.9 -8.5 -8.6
S- 50 -7.7 -6.7 -7.3 -7.2 -7.0 -8.6 -6.0 -6.6 -7.4 -6.2 -7.4 -5.6 -6.5 -6.5 -7.2
S- 38 -6.2 -5.1 -4.2 -4.3 -4.3 -6.3 -4.2 -3.5 -5.5 -3.4 -4.4 -3.8 -5.3 -4.1 -4.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -3.26-2.11-3.41-3.92-3.55-3.34 69.88 72.39-2.51 68.81 72.21-3.41  -0.90
     13 -8.35-7.26-8.36-8.96-8.72-8.46       77.48-7.60       77.42-8.62  -1.02
     50 -6.85-5.96-6.91-7.59-7.06-6.69       76.17-6.29       75.74-6.94  -0.65
     38 -4.48-3.37-4.64-5.32-4.60-4.47       73.63-3.75       73.43-4.62  -0.88
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.56  1.21                   1.70  1.17 1.45  1.02  1.06 0.96   0.66
     13         1.24                         1.16 1.46        1.16 0.88   0.60
     50         1.51                         1.63 1.05        1.25 0.81   0.78
     38         1.33                         1.30 1.31        1.39 0.73   0.56
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.94(F 11 - 72.21)(0.96) + 68.81      0.93(F 13 - 77.42)(0.88) + 68.81

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  50  38    0.884 0.866 0.852 0.836
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.1 65.6 66.2 68.5 68.9 67.7 67.1 67.8 67.8 66.8 69.4 66.8 68.3 66.4 66.6
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
cd 50 76.0 72.5 73.4 76.0 75.6 75.7 73.3 75.0 75.2 72.5 75.6 72.4 75.3 72.8 73.9
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
S- 11 -3.8 -3.6 -3.5 -3.8 -3.0 -3.7 -3.1 -3.3 -3.7 -3.3 -3.3 -2.6 -3.6 -3.3 -3.6
S- 13 -9.1 -8.6 -8.3 -8.7 -8.8 -8.4 -7.9 -9.1 -8.4 -8.6 -8.9 -7.6 -8.2 -8.8 -8.8
S- 50 -7.9 -6.9 -7.2 -7.6 -6.7 -8.0 -6.3 -7.2 -7.4 -5.7 -6.2 -5.6 -7.0 -6.4 -7.3
S- 38 -6.2 -4.8 -4.8 -4.5 -3.9 -5.7 -4.3 -3.7 -4.6 -3.0 -3.3 -3.5 -5.0 -4.0 -4.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -3.30-2.17-3.52-3.95-3.56-3.33 68.69 71.32-2.63 67.47 70.88-3.41  -0.78
     13 -8.30-7.08-8.50-8.93-8.59-8.46       76.22-7.53       76.00-8.54  -1.00
     50 -6.78-5.92-6.98-7.24-7.15-6.51       75.00-6.31       74.36-6.89  -0.58
     38 -4.34-3.36-4.58-5.02-4.69-3.94       72.45-3.76       71.83-4.37  -0.61
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.63  1.34                   1.74  1.14 1.52  1.05  1.11 0.94   0.62
     13         1.32                         1.12 1.55        1.23 0.85   0.55
     50         1.63                         1.42 1.22        1.36 0.77   0.63
     38         1.54                         1.41 1.23        1.33 0.78   0.64
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.94(F 11 - 70.88)(0.94) + 67.47      0.93(F 13 - 76.00)(0.85) + 67.47

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  56  50    0.899 0.896 0.869 0.869
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 61.9 62.6 61.8 62.2 60.8 59.8 61.5 62.5 61.7 60.2 62.3 60.6 62.5 60.3 60.4
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd 56 71.5 72.2 71.9 72.0 70.2 70.1 70.5 72.6 71.1 69.4 72.0 69.4 71.3 69.8 70.6
cd 50 69.8 69.2 68.6 69.1 67.0 67.1 67.2 68.7 68.8 65.7 67.6 66.8 68.8 67.0 67.1
S- 11 -3.9 -3.7 -3.8 -3.6 -2.8 -3.3 -2.7 -2.8 -3.5 -3.0 -2.7 -2.8 -3.1 -3.7 -3.5
S- 13 -8.8 -8.5 -8.5 -8.3 -8.1 -8.4 -7.8 -8.6 -8.0 -7.8 -8.2 -7.2 -8.1 -8.3 -8.7
S- 56 -9.6 -9.7-10.1 -9.8 -9.4-10.3 -9.0-10.1 -9.4 -9.2 -9.7 -8.8 -8.9 -9.5-10.2
S- 50 -7.9 -6.6 -6.8 -6.9 -6.2 -7.3 -5.7 -6.2 -7.1 -5.5 -5.3 -6.2 -6.3 -6.7 -6.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -3.18-1.96-3.57-3.77-3.39-3.19 62.89 65.38-2.49 61.40 64.65-3.25  -0.76
     13 -8.11-6.87-8.50-8.76-8.38-8.04       70.25-7.35       69.62-8.22  -0.87
     56 -9.36-8.15-9.56-9.96-9.77-9.38       71.48-8.58       70.97-9.57  -0.99
     50 -6.38-5.30-6.85-6.74-6.68-6.27       68.78-5.88       67.90-6.50  -0.62
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.83  1.43                   1.94  1.27 1.53  0.93  1.04 0.90   0.58
     13         1.44                         1.41 1.38        1.10 0.85   0.61
     56         1.41                         1.39 1.39        1.00 0.93   0.66
     50         1.61                         1.45 1.34        1.12 0.83   0.62
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.95(F 11 - 64.65)(0.90) + 61.40      0.95(F 13 - 69.62)(0.85) + 61.40

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11   9    0.890 0.865 0.857 0.855
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 52.5 52.9 56.6 54.6 52.0 50.4 52.9 54.7 52.7 52.7 53.2 53.4 51.8 50.0 50.8
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
S- 13 -8.5 -8.6 -8.4 -8.4 -7.9 -8.5 -8.2 -8.1 -7.7 -7.5 -8.3 -7.4 -8.0 -9.0 -8.8
S- 10 -7.0 -6.6 -6.5 -6.1 -6.5 -6.1 -6.7 -6.0 -6.5 -5.8 -6.9 -6.0 -6.4 -7.3 -7.2
S- 11 -3.4 -3.7 -3.5 -4.0 -2.5 -3.3 -2.4 -2.5 -3.2 -2.4 -2.7 -2.8 -2.3 -4.0 -3.4
S-  9 -1.2 -1.1 -0.9 -0.2 -0.7 -0.7 -0.5 -0.4 -0.7 -0.2 -0.5 -0.8 -0.2 -1.1 -0.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.13-6.92-8.52-8.76-8.34-8.08 53.89 61.38-7.49 52.75 60.96-8.21  -0.72
     10 -6.27-4.87-6.63-6.95-6.42-6.59       59.27-5.39       59.25-6.50  -1.12
     11 -2.96-1.64-3.41-3.58-3.20-2.98       56.22-2.33       55.81-3.06  -0.73
      9 -0.56 0.89-1.19-1.09-0.82-0.61       53.73 0.16       53.41-0.66  -0.82
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.82  1.52                   1.36  0.79 1.71  1.66  1.60 1.04   0.61
     10         1.52                         0.78 1.73        1.55 1.08   0.62
     11         1.62                         0.81 1.67        1.72 0.97   0.58
      9         1.66                         0.90 1.50        1.63 1.02   0.68
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.94(F 13 - 60.96)(1.04) + 52.75      0.93(F 10 - 59.25)(1.08) + 52.75

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11   9    0.918 0.896 0.895 0.890
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.1 47.2 46.8 44.9 43.4 40.9 40.5 47.1 44.8 43.2 42.2 46.1 41.8 42.0 41.3
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
S- 13 -8.7 -8.3 -8.1 -8.4 -7.4 -8.7 -8.8 -7.7 -7.6 -7.5 -8.6 -7.4 -7.9 -8.5 -8.6
S- 10 -6.6 -6.1 -5.8 -6.2 -5.6 -6.1 -6.0 -6.0 -6.0 -5.9 -7.2 -6.0 -5.8 -6.7 -7.2
S- 11 -3.2 -3.2 -2.5 -3.8 -2.6 -3.0 -2.3 -2.0 -2.4 -2.2 -3.5 -2.9 -2.1 -3.9 -3.3
S-  9 -0.1 -0.5  0.9  0.4 -0.1 -0.3  1.1  0.4  0.4  0.4 -0.7 -0.3  0.7 -0.7 -0.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.00-6.80-8.42-8.47-8.31-8.01 44.29 51.66-7.37 43.61 51.75-8.14  -0.77
     10 -5.90-4.46-6.18-6.52-6.10-6.39       49.29-5.00       49.82-6.21  -1.21
     11 -2.65-1.27-3.06-3.13-2.98-2.88       46.20-1.91       46.46-2.85  -0.94
      9  0.26 1.74-0.14-0.29 0.02-0.17       43.22 1.08       43.56 0.05  -1.03
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.14  1.84                   1.89  1.31 1.44  2.27  2.05 1.10   0.77
     10         1.96                         1.43 1.33        2.11 1.08   0.81
     11         2.00                         1.44 1.31        2.26 1.01   0.77
      9         2.15                         1.54 1.23        2.26 1.01   0.82
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.96(F 13 - 51.75)(1.10) + 43.61      0.95(F 10 - 49.82)(1.08) + 43.61

Station#1862  FLOYD/2 NE          , va  4307106    lat/lon 80.32   36.92    15M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  56  10    0.958 0.939 0.929 0.919
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 34.3 36.3 38.5 36.8 36.4 38.2 36.1 40.3 38.7 38.5 34.2 39.9 33.8 35.5 34.8
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
S- 13 -8.8 -8.8 -8.0 -8.7 -7.9 -8.1 -8.7 -7.7 -7.8 -7.7 -9.0 -7.9 -8.0 -9.1-10.1
S- 11 -2.9 -2.6 -1.7 -4.1 -3.0 -2.9 -2.0 -2.8 -2.1 -2.8 -3.3 -2.9 -2.7 -3.8 -4.9
S- 56-10.6-10.8-10.2-12.0-11.3-11.3-11.1 -9.6 -9.4 -9.9-11.1-10.1-10.7-12.2-12.3
S- 10 -5.8 -6.3 -5.7 -5.7 -5.6 -5.2 -5.6 -5.7 -5.8 -5.8 -7.0 -6.5 -5.3 -6.3 -8.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.25-7.37-8.39-8.67-8.41-8.49 37.35 45.11-7.76 36.81 45.23-8.42  -0.65
     11 -2.62-1.46-2.82-2.88-2.92-3.22       39.26-1.91       39.78-2.97  -1.06
     56 *****-9.45********************       47.11-9.76       47.66*****  -1.08
     10 -5.63-4.32-5.63-6.16-5.80-6.50       42.12-4.77       42.90-6.08  -1.31
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.55  2.24                   2.42  1.95 1.24  2.02  1.65 1.22   0.98
     11         2.43                         2.14 1.13        1.87 1.08   0.96
     56         2.30                         2.03 1.20        1.64 1.23   1.03
     10         2.36                         1.90 1.28        1.95 1.04   0.81
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.98(F 13 - 45.23)(1.22) + 36.81      0.97(F 11 - 39.78)(1.08) + 36.81

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 42.68 44.78 49.95 57.11 66.18 72.99 76.72 75.33 69.61 59.89 51.55 46.42
1952 45.48 46.38 50.97 58.65 68.83 75.46 78.54 75.76 67.81 59.37 49.73 46.08
1953 44.03 47.29 51.79 60.75 68.58 75.24 76.48 74.96 68.90 60.04 51.40 43.99
1954 42.56 44.23 51.76 57.48 66.17 71.47 76.28 75.68 71.08 61.41 49.98 40.99
1955 38.37 43.22 51.69 60.59 66.36 72.54 76.53 77.18 70.70 60.34 48.29 40.07
1956 39.00 42.92 49.44 56.10 65.60 72.90 76.21 74.26 69.12 60.56 54.13 45.85
1957 44.32 43.35 51.30 58.73 68.32 73.51 75.98 75.20 68.04 60.26 50.70 43.54
1958 38.27 37.78 45.60 55.86 64.97 72.38 75.80 75.07 67.92 60.40 48.85 41.65
1959 37.76 42.78 50.06 58.90 67.37 73.72 76.71 76.06 71.13 61.61 51.91 44.41
1960 41.47 39.74 46.80 55.35 67.49 71.94 75.79 74.66 69.64 60.65 48.82 39.93
1961 37.51 43.38 49.97 56.65 63.46 71.75 75.99 76.51 70.12 62.03 50.91 43.48
1962 39.68 41.17 47.88 57.15 66.73 72.44 74.43 72.61 68.33 59.49 49.06 40.11
1963 35.62 40.86 48.73 58.32 65.09 70.96 74.81 72.95 67.25 59.22 48.37 42.29
1964 38.24 43.40 48.74 57.68 65.81 72.52 74.95 73.70 66.57 59.89 51.46 45.57
1965 41.03 40.96 46.37 56.36 65.36 72.52 74.61 74.91 68.81 60.34 50.24 42.48
1966 38.47 40.77 47.62 56.26 63.98 71.65 75.31 74.47 67.71 59.05 49.48 44.31
1967 40.47 43.11 48.61 56.19 63.62 69.29 73.78 72.13 65.93 56.15 49.10 41.45
1968 37.74 39.60 47.01 56.88 65.14 72.03 76.98 75.30 69.69 60.97 50.72 42.54
1969 38.24 40.15 47.44 56.03 66.82 73.40 76.50 74.26 68.33 59.62 49.50 40.27
1970 37.43 39.75 47.98 57.22 66.68 73.25 76.01 75.96 70.93 62.77 52.19 43.23
1971 39.98 41.11 47.75 55.00 64.89 72.04 75.69 74.62 71.04 62.83 55.49 48.11
1972 44.83 44.56 48.79 56.86 64.11 71.06 74.86 74.97 68.26 59.52 51.45 45.15
1973 41.79 43.61 49.92 58.52 66.44 72.97 77.03 76.21 71.21 63.49 53.71 48.78
1974 44.55 47.03 51.15 59.39 66.09 71.60 74.79 74.20 67.36 58.72 49.97 45.67
1975 43.60 44.91 48.40 56.11 65.43 73.03 76.89 75.60 70.76 62.54 52.81 44.46
1976 42.54 46.31 53.83 59.43 66.10 71.62 74.78 73.43 66.20 55.89 45.44 36.57
1977 35.53 40.76 51.99 60.48 67.05 72.97 76.97 77.51 70.25 61.88 51.10 43.66
1978 36.40 37.77 45.02 55.60 64.96 71.34 75.90 75.00 68.79 60.92 52.18 45.78
1979 38.44 40.18 46.94 58.17 64.82 70.44 74.19 74.68 68.97 61.19 51.74 44.99
1980 38.86 40.08 46.84 57.39 66.19 72.85 77.25 78.05 71.01 60.39 48.75 40.19
1981 38.28 40.15 50.06 57.20 68.09 73.64 76.88 73.74 66.59 58.39 48.04 39.91
1982 37.58 41.40 48.98 57.75 65.99 73.65 75.59 74.16 67.57 60.21 52.88 45.78
1983 41.73 42.85 48.76 57.14 64.72 72.22 76.15 75.18 69.17 60.30 50.65 42.28
1984 40.87 42.21 49.03 55.62 65.56 72.11 75.17 72.74 69.55 59.94 53.63 42.72
1985 40.33 40.54 50.06 58.80 66.68 71.49 74.31 73.81 70.08 64.98 54.23 45.22
1986 39.59 43.58 50.16 58.19 66.56 74.32 76.95 75.12 69.11 61.68 52.33 43.45
1987 38.67 40.34 46.21 55.95 65.35 73.98 77.18 75.76 67.09 59.29 50.51 43.65
1988 39.63 41.14 48.85 56.79 64.72 72.05 76.69 75.54 67.57 58.34 48.92 45.27
1989 42.03 44.66 48.88 56.47 66.15 73.11 76.97 75.21 69.57 61.26 48.01 43.14
1990 41.99 48.97 52.82 58.51 65.56 72.78 76.54 74.94 69.41 61.44 54.34 47.12
1991 44.32 45.75 51.81 60.60 68.20 75.16 77.07 75.71 68.79 59.75 51.44 45.05
1992 43.13 44.08 49.54 55.59 63.12 70.56 74.35 74.60 66.91 59.82 50.00 45.21
1993 40.80 42.01 46.43 55.93 65.66 74.40 77.61 76.85 69.07 60.40 49.26 41.46
1994 38.39 42.17 50.97 57.83 66.78 73.30 77.06 74.38 66.56 60.04 52.61 47.21
1995 42.08 43.39 48.67 57.42 65.32 72.71 76.70 75.33 69.45 58.98 48.06 39.55
1996 37.65 40.32 47.45 55.85 65.83 71.85 74.73 73.21 67.58 57.82 49.46 42.75
1997 42.79 44.94 49.76 55.39 62.17 70.32 74.52 73.97 67.54 58.57 49.32 42.42

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.969 0.941 0.928 0.926
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.7 40.9 40.3 39.6 38.7 39.6 42.0 42.0 44.3 43.1 40.8 38.4 42.1 37.7 42.8
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S- 10  1.0  2.3  0.0  0.6  0.3  1.5  1.4  1.1  0.9  0.4  0.5  0.8  0.6  0.4  1.0
S-  9  6.5  9.5  7.5  8.1  6.3  7.5  7.5  8.3  8.0  7.4  6.9  8.1  7.9  7.0  7.4
S-  7  5.5  8.1  5.5  7.2  5.5  6.8  7.0  7.4  6.9  6.7  6.4  8.0  6.3  6.3  6.1
S- 13 -1.6 -0.9 -3.1 -3.0 -2.8 -1.3 -2.2 -2.6 -1.6 -2.8 -2.1 -2.7 -1.6 -3.2 -1.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.03 1.02 1.00 1.35 1.03 0.66 40.40 39.40 1.01 40.93 40.07 0.86  -0.15
      9  7.92 7.62 8.06 8.60 7.68 7.52       32.62 7.78       33.35 7.59  -0.20
      7  6.93 6.64 7.08 7.51 6.64 6.68       33.45 6.95       34.28 6.66  -0.29
     13 -2.28-2.53-2.42-1.90-2.28-2.27       42.99-2.59       43.16-2.23   0.36
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.57  2.48                   2.83  2.49 1.13  1.83  1.82 1.00   0.89
      9         2.89                         2.99 0.94        1.85 0.99   1.05
      7         2.52                         2.68 1.05        2.00 0.91   0.87
     13         2.54                         2.78 1.01        1.66 1.10   1.08
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 40.07)(1.00) + 40.93      0.97(F  9 - 33.35)(0.99) + 40.93

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12   9    0.978 0.950 0.948 0.947
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.8 42.2 40.5 43.6 40.3 41.1 44.7 49.0 45.8 44.1 42.0 42.2 43.4 40.3 44.9
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
S- 10  1.0  1.6 -0.4  1.1  0.1  1.3  1.1  0.8  0.8  0.4  0.4  1.4  0.5  0.9  0.7
S- 13 -1.5 -2.9 -4.1 -3.1 -3.6 -1.9 -3.0 -2.4 -2.3 -3.1 -2.8 -3.1 -2.6 -3.1 -4.0
S- 12 -4.2 -5.5 -6.9 -5.9 -6.1 -4.7 -6.2 -5.6 -5.4 -5.6 -6.4 -6.9 -5.4 -6.6 -7.0
S-  9  6.8  8.4  7.1  7.7  5.0  7.2  6.5  7.0  7.7  7.1  6.8  9.0  7.4  7.5  7.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.96 0.92 0.95 1.22 0.90 0.74 42.82 41.89 0.93 43.13 42.35 0.78  -0.14
     13 -2.84-2.96-2.80-2.61-2.90-2.99       45.76-2.95       46.03-2.90   0.05
     12 -5.74-5.62-5.64-5.68-5.70-6.19       48.54-5.73       49.03-5.90  -0.17
      9  7.60 7.61 7.59 8.13 7.13 7.50       35.21 7.60       35.92 7.21  -0.40
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.46  2.45                   2.37  2.14 1.11  2.27  2.25 1.01   0.91
     13         2.57                         2.47 0.96        2.21 1.03   1.07
     12         2.68                         2.35 1.01        2.27 1.00   0.99
      9         2.79                         2.46 0.97        2.36 0.96   0.99
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.99(F 10 - 42.35)(1.01) + 43.13      0.97(F 13 - 46.03)(1.03) + 43.13

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  12    0.968 0.924 0.914 0.905
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.8 49.0 50.1 50.2 46.2 48.8 48.9 52.8 51.8 49.5 46.4 51.0 48.7 47.5 49.8
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5
S- 10  1.4  1.4 -0.3  0.6 -0.1  1.3  0.9  0.5  0.6  0.4  0.3  0.7  0.1  1.1  0.4
S-  9  6.9  7.6  6.4  6.0  4.3  6.9  6.7  6.6  6.6  6.4  6.5  7.4  6.5  7.6  6.4
S- 13 -1.3 -2.3 -3.7 -4.1 -3.8 -2.2 -3.4 -2.6 -3.0 -3.0 -2.6 -3.0 -3.9 -2.6 -3.9
S- 12 -3.6 -5.0 -5.9 -6.3 -5.6 -4.3 -5.8 -5.3 -5.6 -5.2 -5.3 -5.8 -6.3 -5.2 -6.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.91 1.07 0.86 1.14 0.85 0.51 49.40 48.40 1.01 49.29 48.67 0.62  -0.39
      9  6.97 7.40 6.64 7.31 6.66 6.77       42.19 7.21       42.70 6.59  -0.62
     13 -2.86-2.55-3.17-2.66-2.89-3.14       52.13-2.72       52.32-3.02  -0.30
     12 -5.20-4.75-5.46-5.00-5.20-5.76       54.41-5.01       54.77-5.48  -0.47
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.96  1.97                   1.95  1.95 1.00  1.74  1.80 0.97   0.97
      9         2.04                         2.10 0.93        1.69 1.03   1.11
     13         1.96                         2.04 0.96        1.92 0.91   0.95
     12         1.96                         1.90 1.03        2.02 0.86   0.84
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 48.67)(0.97) + 49.29      0.96(F  9 - 42.70)(1.03) + 49.29

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  13  12    0.945 0.876 0.871 0.870
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.1 55.6 58.8 58.2 56.0 56.8 56.5 58.5 60.6 55.6 55.9 57.8 57.4 55.8 55.4
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
S- 10  1.7  1.3 -0.4  0.5  0.0  1.1  1.2  0.6  0.7  0.5  0.3  0.6  0.1  0.9  0.4
S-  7  5.8  6.4  4.0  4.5  3.2  4.9  5.6  5.6  5.1  5.6  5.0  5.9  5.0  5.8  4.6
S- 13 -1.0 -2.4 -3.0 -3.0 -3.4 -2.2 -2.1 -2.4 -2.2 -2.4 -2.0 -2.6 -4.1 -2.7 -3.6
S- 12 -3.0 -5.0 -4.9 -4.7 -4.6 -3.9 -4.4 -4.8 -4.6 -4.3 -4.2 -4.8 -6.1 -5.0 -6.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.90 1.03 0.80 1.19 0.88 0.49 57.71 56.76 0.95 57.07 56.44 0.63  -0.31
      7  5.50 5.81 5.57 5.64 5.14 5.30       52.01 5.71       51.92 5.15  -0.56
     13 -2.49-2.31-2.90-2.12-2.42-2.78       60.19-2.48       59.67-2.60  -0.12
     12 -4.40-4.03-4.62-4.13-4.33-5.06       61.92-4.21       61.78-4.70  -0.50
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.50  1.52                   1.56  1.54 1.02  1.44  1.62 0.89   0.88
      7         1.59                         1.43 1.09        1.74 0.83   0.76
     13         1.53                         1.59 0.98        1.57 0.92   0.94
     12         1.46                         1.46 1.07        1.58 0.91   0.85
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 56.44)(0.89) + 57.07      0.94(F  7 - 51.92)(0.83) + 57.07

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12  13    0.936 0.884 0.880 0.857
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.7 65.6 66.7 66.6 65.3 64.7 66.2 65.6 68.2 63.1 65.7 66.8 65.3 65.8 62.2
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
S- 10  1.6  1.0 -0.1 -0.2  0.0  1.0  1.5  0.5  0.3  0.4  0.3  0.4  0.3  0.5  0.4
S-  7  4.6  4.6  3.9  3.5  3.0  3.8  5.0  4.3  3.5  4.1  3.9  3.8  4.3  4.5  3.0
S- 12 -2.3 -3.2 -4.1 -4.4 -3.7 -3.1 -2.8 -4.3 -3.8 -3.8 -3.2 -3.1 -4.9 -4.0 -4.0
S- 13 -0.7 -1.1 -2.3 -3.4 -2.7 -1.8 -0.5 -2.3 -1.8 -2.1 -1.8 -1.5 -2.8 -2.2 -1.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.83 0.89 0.73 1.20 0.82 0.39 66.42 65.60 0.82 65.49 64.96 0.53  -0.29
      7  4.39 4.76 4.23 4.61 4.34 3.89       61.88 4.54       61.50 3.99  -0.55
     12 -3.40-3.18-3.59-3.16-3.38-3.82       69.77-3.35       69.13-3.64  -0.29
     13 -1.94-2.11-2.30-1.52-1.80-1.98       68.64-2.22       67.41-1.92   0.30
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.40  1.42                   1.44  1.39 1.04  1.41  1.58 0.89   0.86
      7         1.33                         1.27 1.13        1.46 0.97   0.86
     12         1.33                         1.16 1.24        1.56 0.91   0.73
     13         1.50                         1.36 1.06        1.66 0.85   0.80
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 64.96)(0.89) + 65.49      0.94(F  7 - 61.50)(0.97) + 65.49

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.953 0.883 0.871 0.863
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.2 72.1 71.5 74.3 74.0 72.1 73.1 72.8 75.2 70.6 74.4 73.3 72.7 71.8 70.3
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
S- 10  0.9  0.7 -0.3  0.3  0.0  0.8  1.3  0.6  0.4  0.5  0.6  1.0  0.5  0.2  0.6
S- 12 -2.5 -2.7 -4.2 -3.3 -2.5 -2.1 -2.1 -3.5 -2.3 -3.6 -2.8 -1.8 -3.1 -4.2 -2.9
S-  9  6.1  6.0  4.9  5.8  4.4  4.9  6.7  6.4  4.8  5.5  6.1  6.7  5.5  5.3  5.8
S- 13 -1.4 -1.0 -2.4 -2.5 -1.8 -0.8  0.2 -1.8 -0.7 -1.6 -1.7 -0.3 -1.6 -2.8 -1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.74 0.67 0.70 1.01 0.72 0.54 72.82 72.15 0.68 72.69 72.15 0.54  -0.13
     12 -2.64-2.60-2.57-2.44-2.72-2.95       75.47-2.64       75.59-2.90  -0.26
      9  5.63 5.63 5.24 5.80 5.82 5.66       67.31 5.51       67.04 5.65   0.14
     13 -1.43-1.86-1.47-1.06-1.35-1.41       74.61-1.79       74.11-1.42   0.36
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.28  1.30                   1.21  1.15 1.05  1.35  1.40 0.96   0.92
     12         1.23                         1.04 1.16        1.25 1.08   0.93
      9         1.42                         1.45 0.83        1.53 0.88   1.06
     13         1.48                         1.32 0.92        1.49 0.90   0.99
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.98(F 10 - 72.15)(0.96) + 72.69      0.94(F 12 - 75.59)(1.08) + 72.69

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  11  12    0.926 0.842 0.825 0.821
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.2 75.2 74.3 76.9 77.2 76.7 77.0 76.5 77.1 74.3 77.6 77.1 76.7 74.7 74.5
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9
S- 10  0.0  0.0 -0.1  0.3 -0.4  0.6  1.1  0.8  0.3  0.3  0.4  0.8  0.2  0.0  0.5
S-  9  4.7  4.7  5.2  5.9  4.5  4.6  6.2  6.2  5.1  5.8  5.5  5.8  4.3  5.0  5.4
S- 11  3.3  3.4  3.2  3.4  3.5  4.1  5.4  4.4  4.4  4.2  3.7  5.0  3.6  3.2  3.8
S- 12 -2.6 -2.8 -3.7 -3.1 -2.6 -1.6 -1.7 -2.9 -2.1 -3.6 -2.5 -1.4 -2.0 -3.2 -2.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.61 0.53 0.62 0.92 0.52 0.36 75.99 75.44 0.55 76.13 75.81 0.33  -0.22
      9  5.54 5.49 5.40 5.90 5.55 5.27       70.51 5.48       70.87 5.26  -0.22
     11  3.94 3.50 3.98 4.39 3.84 4.00       72.39 3.60       72.21 3.92   0.32
     12 -2.19-2.19-2.09-1.77-2.52-2.45       78.24-2.25       78.68-2.54  -0.29
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.07  1.07                   1.00  0.93 1.08  1.13  1.08 1.05   0.97
      9         1.17                         1.06 0.94        1.25 0.90   0.96
     11         1.21                         1.17 0.86        1.06 1.06   1.24
     12         1.03                         0.92 1.09        0.88 1.29   1.19
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 75.81)(1.05) + 76.13      0.92(F  9 - 70.87)(0.90) + 76.13

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.940 0.899 0.877 0.852
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.2 72.7 73.8 75.1 75.8 75.5 75.2 74.9 75.7 74.6 76.8 74.4 75.3 73.2 74.0
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
S- 10 -0.2  0.2  0.3  0.3 -0.5  0.9  1.2  0.7  0.3  0.7  0.5  0.8  0.2  0.1  0.5
S-  9  5.0  5.3  5.3  5.3  4.9  4.8  6.2  5.9  5.5  6.3  5.7  6.0  5.0  5.6  6.2
S-  7  1.8  2.3  2.2  3.4  3.0  2.6  3.8  3.7  3.1  4.5  3.8  3.2  2.2  2.5  3.0
S- 12 -3.1 -3.0 -2.8 -3.5 -3.1 -2.2 -1.9 -3.3 -2.3 -3.2 -2.5 -2.0 -2.3 -3.5 -3.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.67 0.60 0.74 0.99 0.52 0.44 74.99 74.33 0.65 74.82 74.43 0.39  -0.26
      9  5.75 5.60 5.70 6.21 5.50 5.74       69.36 5.63       69.30 5.52  -0.11
      7  3.16 3.20 2.85 3.61 2.96 3.19       71.85 3.14       71.81 3.01  -0.13
     12 -2.33-2.28-2.22-1.85-2.71-2.68       77.28-2.29       77.61-2.78  -0.49
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.23  1.24                   1.20  1.12 1.08  1.03  1.08 0.95   0.88
      9         1.38                         1.36 0.89        1.21 0.85   0.96
      7         1.19                         1.31 0.91        1.04 0.99   1.08
     12         1.09                         0.92 1.30        0.97 1.06   0.82
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 74.43)(0.95) + 74.82      0.95(F  9 - 69.30)(0.85) + 74.82

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  12    0.953 0.917 0.904 0.902
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.2 69.6 70.1 69.1 67.1 67.6 69.6 69.4 68.8 66.9 69.1 66.6 69.4 67.6 67.5
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2
S- 10  0.2  0.3  1.3  0.6 -0.2  1.4  1.5  0.8  0.4  0.8  0.4  0.2  0.3  0.3  0.5
S-  7  2.8  3.3  4.1  4.0  3.4  4.0  4.2  3.8  3.1  4.4  4.1  3.3  2.6  2.9  3.2
S-  9  5.5  5.2  6.4  5.8  5.2  6.2  7.0  6.3  5.3  5.9  5.8  5.3  5.3  5.5  6.4
S- 12 -3.6 -3.0 -3.0 -3.6 -4.0 -2.9 -2.3 -3.9 -3.1 -3.7 -3.4 -3.6 -3.2 -3.4 -3.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.81 0.77 0.82 1.11 0.81 0.41 69.00 68.22 0.78 68.50 67.92 0.58  -0.20
      7  3.70 3.71 3.41 4.22 3.69 3.38       65.38 3.62       64.95 3.55  -0.07
      9  6.04 5.95 5.94 6.60 5.94 5.64       63.15 5.85       62.70 5.80  -0.05
     12 -2.89-2.85-2.81-2.35-3.17-3.44       71.85-2.84       71.86-3.37  -0.52
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.46  1.42                   1.34  1.31 1.02  1.11  1.07 1.04   1.03
      7         1.41                         1.37 0.97        1.22 0.91   0.94
      9         1.50                         1.33 1.00        1.10 1.02   1.01
     12         1.30                         1.13 1.18        1.01 1.10   0.94
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.98(F 10 - 67.92)(1.04) + 68.50      0.96(F  7 - 64.95)(0.91) + 68.50

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  12    0.965 0.941 0.933 0.926
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 60.3 59.9 65.0 61.7 59.3 58.3 61.3 61.4 59.8 59.8 60.4 60.0 59.0 57.8 58.6
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8
S- 10  0.8  0.4  1.9  1.0  0.9  1.9  1.6  0.7  0.5  1.2  0.3  0.6  0.8  0.5  0.6
S- 13 -0.6 -1.6  0.0 -1.4 -0.5 -0.5  0.2 -1.4 -0.7 -0.4 -1.1 -0.8 -0.8 -1.2 -1.0
S-  9  6.7  6.0  7.5  6.8  6.6  7.3  7.9  6.3  6.3  6.8  6.7  5.9  7.0  6.7  7.1
S- 12 -3.5 -3.6 -3.5 -4.7 -3.6 -3.8 -3.3 -4.2 -3.4 -3.8 -4.5 -4.0 -4.0 -4.3 -4.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.11 1.07 1.14 1.39 1.16 0.66 60.37 59.27 1.09 60.17 59.25 0.92  -0.17
     13 -0.74-0.98-0.75-0.42-0.76-0.83       61.38-1.01       60.96-0.78   0.23
      9  6.82 6.83 6.58 7.25 6.77 6.64       53.73 6.64       53.41 6.76   0.12
     12 -3.36-3.29-3.05-3.01-3.61-4.02       63.61-3.24       64.06-3.88  -0.64
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.66  1.52                   0.78  0.78 1.00  1.68  1.55 1.09   1.09
     13         1.52                         0.79 0.98        1.60 1.05   1.06
      9         1.66                         0.90 0.87        1.63 1.03   1.19
     12         1.57                         0.77 1.01        1.65 1.02   1.00
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.98(F 10 - 59.25)(1.09) + 60.17      0.97(F 13 - 60.96)(1.05) + 60.17

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12   9    0.973 0.957 0.953 0.945
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 50.7 53.6 54.2 52.3 50.5 48.9 48.0 54.3 51.4 50.0 49.3 52.6 48.1 49.5 49.3
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
S- 10  2.0  0.4  1.7  1.3  1.5  1.8  1.5  1.2  0.7  1.0 -0.2  0.6  0.5  0.8  0.8
S- 13 -0.1 -1.9 -0.6 -1.0 -0.3 -0.7 -1.3 -0.4 -1.0 -0.7 -1.5 -0.9 -1.6 -1.0 -0.6
S- 12 -3.8 -4.2 -4.5 -5.2 -3.6 -4.0 -4.6 -4.1 -3.8 -4.7 -5.4 -4.5 -5.1 -4.8 -4.5
S-  9  8.5  6.0  8.4  7.9  7.0  7.7  8.6  7.6  7.0  7.2  6.4  6.3  7.0  6.8  7.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.16 1.08 1.15 1.45 1.37 0.59 50.36 49.29 1.07 50.85 49.82 1.03  -0.04
     13 -0.94-1.25-1.10-0.50-0.85-1.02       51.66-1.30       51.75-0.90   0.40
     12 -4.04-4.00-3.92-3.59-4.20-4.68       54.38-4.02       55.30-4.44  -0.42
      9  7.32 7.29 7.19 7.69 7.48 6.82       43.22 7.14       43.56 7.29   0.14
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.03  1.96                   1.55  1.43 1.08  2.07  2.11 0.98   0.90
     13         1.84                         1.31 1.18        2.05 1.01   0.86
     12         1.96                         1.49 1.04        2.02 1.03   0.99
      9         2.15                         1.54 1.00        2.26 0.92   0.91
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.99(F 10 - 49.82)(0.98) + 50.85      0.98(F 13 - 51.75)(1.01) + 50.85

Station#1863  HOLLAND/1 E         , va  4404401    lat/lon 76.78   36.68     1M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   9    0.964 0.946 0.940 0.938
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.3 42.7 45.2 43.5 43.7 45.3 43.1 47.1 45.0 45.2 41.5 47.2 39.5 42.8 42.4
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
S- 10  2.1  0.2  1.0  1.0  1.6  1.8  1.4  1.1  0.5  0.9  0.3  0.8  0.4  1.0 -1.1
S- 12 -4.3 -5.3 -4.9 -6.3 -4.2 -4.6 -5.1 -4.5 -4.2 -5.4 -6.0 -4.4 -6.2 -5.6 -6.5
S- 13 -0.9 -2.3 -1.3 -2.0 -0.7 -1.1 -1.7 -0.9 -1.4 -0.9 -1.8 -0.5 -2.3 -1.8 -2.4
S-  9  9.1  6.9  8.5  7.6  7.2  7.2  8.8  7.6  7.9  7.2  7.8  7.4  6.9  7.6  5.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.12 0.96 1.18 1.61 1.24 0.40 43.12 42.12 1.00 43.77 42.90 0.87  -0.13
     12 -4.83-4.98-4.60-4.39-4.90-5.48       48.06-4.94       48.94-5.17  -0.23
     13 -1.50-2.09-1.58-0.90-1.37-1.59       45.11-1.99       45.23-1.46   0.53
      9  7.83 7.65 7.90 8.54 7.72 7.13       35.43 7.69       36.24 7.52  -0.17
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.50  2.36                   2.19  1.90 1.16  2.02  1.95 1.04   0.90
     12         2.40                         2.02 1.09        1.66 1.21   1.11
     13         2.24                         1.95 1.13        1.65 1.22   1.09
      9         2.64                         2.20 1.00        2.10 0.96   0.96
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.98(F 10 - 42.90)(1.04) + 43.77      0.97(F 12 - 48.94)(1.21) + 43.77

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 44.14 46.63 51.56 58.55 67.12 73.85 77.65 76.31 70.98 61.17 52.01 45.82
1952 44.64 46.28 51.24 58.95 69.37 76.35 79.97 77.09 69.09 60.17 50.10 46.01
1953 44.38 47.74 52.83 61.74 70.38 77.39 79.03 77.48 71.16 61.46 52.23 45.02
1954 44.61 46.99 54.73 60.17 68.64 73.80 78.39 78.22 73.20 62.83 50.88 42.00
1955 40.24 45.07 53.60 62.56 68.54 74.74 78.32 78.65 71.73 61.39 49.32 41.30
1956 39.82 43.81 50.34 57.75 66.72 73.84 77.00 75.15 69.79 60.85 54.60 46.01
1957 44.30 43.62 52.61 60.68 69.89 74.76 76.75 75.63 68.01 60.21 50.88 43.98
1958 38.29 37.90 45.81 56.29 65.64 72.80 76.29 75.54 68.36 60.35 48.66 42.03
1959 38.80 43.79 51.56 60.29 69.05 74.27 77.21 75.63 70.50 61.18 52.39 45.67
1960 43.00 40.87 47.92 56.02 68.95 73.84 78.10 76.86 71.43 62.55 50.82 42.12
1961 39.57 45.34 52.27 58.77 65.26 72.88 77.29 77.82 71.68 63.46 51.98 44.73
1962 40.96 42.95 49.56 59.30 68.58 74.23 75.52 73.78 69.41 60.52 50.12 41.63
1963 37.52 43.12 51.15 60.99 68.21 73.58 77.09 74.74 69.21 61.33 50.26 43.64
1964 39.42 44.98 50.79 60.07 68.28 74.71 77.07 75.26 67.76 60.50 52.38 46.95
1965 43.00 42.85 48.53 58.62 67.94 74.84 76.49 76.07 70.01 61.57 52.39 44.26
1966 40.41 42.56 49.80 58.39 66.02 73.50 77.08 75.53 68.59 59.70 49.97 45.22
1967 41.54 45.12 51.13 58.90 66.56 71.75 76.14 74.43 68.48 58.83 51.14 43.11
1968 39.64 42.46 50.25 59.60 67.04 73.69 78.63 77.29 71.63 62.78 52.44 43.83
1969 39.35 41.07 49.34 58.78 69.26 75.07 77.50 75.02 68.65 59.88 49.81 41.10
1970 38.66 41.26 50.00 59.11 69.08 75.25 78.13 77.64 72.70 63.93 53.69 44.72
1971 41.44 42.39 49.00 56.72 66.35 73.19 76.96 76.20 72.63 64.19 56.99 49.33
1972 45.74 45.23 50.17 58.50 65.68 72.17 75.91 75.92 69.09 60.24 52.20 46.45
1973 43.35 45.61 51.75 60.02 67.54 74.20 78.52 77.95 72.69 64.78 54.43 49.40
1974 45.60 48.82 53.31 61.42 67.84 73.42 76.32 75.78 69.09 60.68 52.25 47.14
1975 44.86 45.64 49.56 57.58 66.84 73.96 77.60 76.22 72.05 63.91 54.14 45.53
1976 43.07 47.61 55.26 61.35 68.05 73.52 77.00 75.47 68.42 57.95 47.57 38.13
1977 37.13 42.35 53.93 62.45 68.73 75.02 78.92 79.49 71.90 63.09 51.99 43.77
1978 37.11 38.97 47.42 57.98 67.40 73.53 78.18 77.57 71.62 62.99 53.57 46.31
1979 39.13 41.50 48.59 60.34 66.82 72.51 75.85 75.71 70.13 62.37 53.45 46.08
1980 40.49 41.61 49.18 59.28 68.26 74.89 79.23 80.15 73.06 62.33 50.32 41.67
1981 40.35 42.30 52.26 58.81 69.23 74.35 77.41 74.39 67.16 59.00 48.41 39.99
1982 37.15 41.25 49.11 57.94 65.72 72.86 74.74 73.53 68.06 61.61 54.87 47.68
1983 43.36 44.51 50.14 58.56 66.06 74.14 78.47 77.72 71.26 61.58 50.41 41.33
1984 39.68 41.99 49.38 56.24 66.92 73.42 76.55 73.35 69.71 59.45 53.17 42.40
1985 40.75 41.52 51.54 60.49 67.79 72.36 74.57 73.34 69.43 64.63 55.31 46.70
1986 41.14 44.62 51.84 60.46 69.18 76.44 78.71 77.04 70.90 62.95 53.12 44.26
1987 40.11 42.65 48.93 59.05 68.06 76.61 79.61 78.16 69.11 60.15 50.48 43.37
1988 39.87 41.78 49.71 57.52 65.33 72.39 77.00 75.55 66.83 57.07 47.44 43.76
1989 41.22 44.96 50.76 58.71 68.07 74.93 78.63 76.84 70.99 62.46 48.93 43.91
1990 43.04 50.25 54.22 59.70 67.09 74.07 77.50 75.69 70.28 62.66 55.07 47.72
1991 45.02 47.60 54.60 64.07 71.54 77.97 79.48 77.98 71.43 62.62 54.18 47.72
1992 45.63 46.69 52.65 58.89 66.50 73.25 76.89 76.84 69.50 62.05 52.43 47.39
1993 43.35 44.62 49.52 59.01 68.83 76.66 80.10 79.31 71.91 62.68 50.94 42.53
1994 39.31 43.55 53.38 60.59 69.52 75.05 78.82 76.26 68.96 61.93 54.09 48.25
1995 43.48 45.40 51.80 60.95 68.69 75.65 79.98 78.75 72.93 62.07 51.19 42.41
1996 40.32 42.86 50.51 59.12 69.36 75.15 77.97 76.31 70.98 61.12 52.85 45.80
1997 45.83 47.82 52.81 58.95 65.90 73.81 77.84 77.44 71.03 61.47 51.43 43.91

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.946 0.920 0.910 0.893
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.4 39.7 40.8 41.1 40.1 39.9 41.2 43.0 45.0 45.6 43.3 39.3 43.5 40.3 45.8
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
S- 10  2.7  1.2  0.5  2.2  1.8  1.7  0.6  2.1  1.6  2.9  3.0  1.8  2.0  3.1  4.0
S-  9  8.2  8.3  7.9  9.6  7.7  7.7  6.7  9.3  8.7  9.9  9.5  9.0  9.3  9.7 10.4
S-  7  7.2  6.9  5.9  8.8  6.9  7.0  6.2  8.5  7.6  9.2  9.0  8.9  7.7  8.9  9.1
S- 38  5.3  7.2  7.1  7.6  5.1  5.9  4.6  7.2  7.4  7.4  7.8  7.2  7.3  7.8  8.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.21 1.85 2.57 2.49 1.63 2.63 41.51 39.40 2.12 42.14 40.07 2.07  -0.05
      9  9.09 8.45 9.62 9.74 8.28 9.49       32.62 8.89       33.35 8.79  -0.10
      7  8.10 7.47 8.64 8.65 7.24 8.65       33.45 8.06       34.28 7.86  -0.20
     38  7.09 6.14 7.57 7.98 6.28 7.64       34.82 6.70       35.24 6.91   0.21
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.54  2.48                   2.49  2.49 1.00  2.16  1.82 1.19   1.19
      9         2.89                         2.99 0.83        1.85 1.17   1.40
      7         2.52                         2.68 0.93        2.00 1.08   1.16
     38         3.07                         3.13 0.80        2.04 1.06   1.33
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 40.07)(1.19) + 42.14      0.96(F  9 - 33.35)(1.17) + 42.14

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  12    0.961 0.928 0.916 0.907
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.5 42.0 41.5 44.6 42.7 41.8 45.0 50.3 47.6 46.7 44.6 43.5 45.4 42.9 47.8
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0
S- 10  2.7  1.3  0.6  2.1  2.4  1.9  1.4  2.0  2.6  3.0  3.0  2.8  2.5  3.5  3.6
S-  9  8.5  8.1  8.1  8.8  7.3  7.8  6.8  8.2  9.6  9.7  9.4 10.4  9.4 10.0  9.9
S- 13  0.1 -3.1 -3.1 -2.1 -1.2 -1.3 -2.7 -1.1 -0.4 -0.5 -0.2 -1.8 -0.6 -0.5 -1.1
S- 12 -2.6 -5.8 -5.9 -4.9 -3.8 -4.1 -5.9 -4.3 -3.6 -3.0 -3.8 -5.5 -3.4 -4.0 -4.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.41 1.95 2.80 2.56 1.90 3.00 44.13 41.89 2.24 44.72 42.35 2.37   0.13
      9  9.04 8.63 9.44 9.47 8.12 9.77       35.21 8.92       35.92 8.80  -0.12
     13 -1.40-1.94-0.95-1.27-1.90-0.72       45.76-1.63       46.03-1.31   0.33
     12 -4.29-4.60-3.78-4.34-4.70-3.92       48.54-4.41       49.03-4.31   0.10
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.54  2.45                   2.44  2.14 1.14  2.43  2.25 1.08   0.95
      9         2.79                         2.46 0.99        2.36 1.03   1.04
     13         2.57                         2.47 0.99        2.21 1.10   1.11
     12         2.68                         2.35 1.04        2.27 1.07   1.03
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.35)(1.08) + 44.72      0.96(F  9 - 35.92)(1.03) + 44.72

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  38    0.945 0.914 0.897 0.880
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 50.1 49.4 51.5 51.8 48.9 49.7 50.8 54.2 54.6 52.7 49.5 53.4 51.8 50.5 52.8
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
S- 10  2.8  1.8  1.1  2.3  2.6  2.2  2.8  1.9  3.3  3.5  3.4  3.2  3.2  4.1  3.5
S-  9  8.2  7.9  7.9  7.7  7.0  7.8  8.6  8.0  9.4  9.5  9.6  9.8  9.6 10.7  9.5
S- 13  0.0 -1.9 -2.2 -2.4 -1.0 -1.4 -1.5 -1.2 -0.2  0.2  0.5 -0.6 -0.8  0.4 -0.9
S- 38  5.6  5.4  5.7  4.9  3.4  5.9  5.9  5.9  6.7  6.5  7.5  7.8  6.7  8.9  7.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.77 2.35 3.10 2.89 2.26 3.46 50.97 48.40 2.57 51.45 48.67 2.78   0.21
      9  8.83 8.69 8.89 9.06 8.07 9.72       42.19 8.78       42.70 8.75  -0.02
     13 -1.00-1.26-0.92-0.90-1.48-0.19       52.13-1.16       52.32-0.86   0.30
     38  6.20 6.06 6.12 6.40 5.45 7.31       44.93 6.04       45.19 6.26   0.22
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.04  1.97                   2.22  1.95 1.14  1.74  1.80 0.97   0.85
      9         2.04                         2.10 1.06        1.69 1.03   0.97
     13         1.96                         2.04 1.09        1.92 0.91   0.83
     38         2.21                         2.29 0.97        1.81 0.96   0.99
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 48.67)(0.97) + 51.45      0.96(F  9 - 42.70)(1.03) + 51.45

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12  13    0.908 0.854 0.849 0.844
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 58.6 56.2 60.5 60.5 59.0 57.5 58.7 59.7 64.1 58.9 59.0 60.6 61.0 59.1 59.0
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
S- 10  3.1  1.9  1.3  2.8  3.1  1.8  3.5  1.8  4.2  3.8  3.4  3.3  3.7  4.2  3.9
S-  9  8.8  8.0  6.8  7.8  7.1  6.5  8.7  7.5  9.0  8.9  9.2 10.0  9.3  9.9 10.2
S- 12 -1.5 -4.4 -3.2 -2.5 -1.5 -3.1 -2.1 -3.6 -1.1 -1.0 -1.1 -2.1 -2.6 -1.7 -2.8
S- 13  0.5 -1.7 -1.3 -0.7 -0.3 -1.4  0.1 -1.2  1.3  0.9  1.1  0.2 -0.5  0.6  0.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.90 2.38 3.18 3.06 2.38 3.78 59.38 56.76 2.62 59.49 56.44 3.05   0.43
      9  8.30 8.16 8.18 8.40 7.61 9.51       51.18 8.20       50.97 8.52   0.32
     12 -2.40-2.69-2.24-2.26-2.82-1.78       61.92-2.53       61.78-2.29   0.25
     13 -0.49-0.96-0.52-0.25-0.91 0.50       60.19-0.81       59.67-0.18   0.63
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.64  1.52                   1.77  1.54 1.16  1.70  1.62 1.05   0.91
      9         1.68                         1.70 1.04        1.83 0.93   0.89
     12         1.46                         1.46 1.21        1.58 1.08   0.89
     13         1.53                         1.59 1.11        1.57 1.08   0.97
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.95(F 10 - 56.44)(1.05) + 59.49      0.92(F  9 - 50.97)(0.93) + 59.49

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   8   9    0.877 0.868 0.842 0.830
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.1 66.9 67.8 69.2 68.1 65.3 68.1 67.1 71.5 66.5 68.8 69.5 68.7 69.4 65.9
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd  8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
S- 10  2.9  2.3  1.1  2.4  2.7  1.6  3.5  2.1  3.6  3.8  3.5  3.2  3.7  4.1  4.2
S-  7  5.9  6.0  5.0  6.1  5.7  4.4  6.9  5.8  6.9  7.5  7.1  6.5  7.7  8.0  6.8
S-  8 11.0 11.2 10.2 10.7  9.2  8.8 12.4 10.4 10.5 11.1 11.4 11.9 12.3 12.0 11.3
S-  9  8.1  7.4  6.6  7.4  7.0  6.0  9.6  7.7  7.8  8.5  8.9  8.9  8.9  9.1  9.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.81 2.33 3.08 2.94 2.23 3.71 68.17 65.60 2.57 67.92 64.96 2.96   0.39
      7  6.37 6.20 6.58 6.35 5.75 7.21       61.88 6.29       61.50 6.42   0.13
      8 10.8110.5410.8210.9110.4911.48       57.5210.65       56.9710.95   0.30
      9  7.83 7.56 7.62 7.98 7.43 8.84       60.56 7.61       59.81 8.11   0.51
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.43  1.42                   1.40  1.39 1.01  1.61  1.58 1.02   1.01
      7         1.33                         1.27 1.10        1.46 1.10   1.00
      8         1.42                         1.45 0.96        1.62 0.99   1.03
      9         1.51                         1.56 0.90        1.75 0.92   1.02
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.94(F 10 - 64.96)(1.02) + 67.92      0.93(F  7 - 61.50)(1.10) + 67.92

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.849 0.799 0.785 0.770
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.1 73.4 72.4 76.4 76.6 72.4 74.9 74.1 78.0 73.3 76.7 75.1 75.7 75.2 73.8
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
S- 10  2.8  2.0  0.6  2.5  2.6  1.1  3.1  1.9  3.2  3.2  2.8  2.8  3.5  3.5  4.1
S- 12 -0.6 -1.4 -3.3 -1.2  0.2 -1.7 -0.3 -2.2  0.5 -0.9 -0.5  0.0 -0.2 -0.9  0.6
S-  9  8.0  7.3  5.8  7.9  7.0  5.2  8.6  7.7  7.6  8.2  8.4  8.4  8.5  8.6  9.3
S- 13  0.5  0.3 -1.5 -0.4  0.8 -0.5  2.0 -0.5  2.1  1.1  0.5  1.5  1.3  0.5  2.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.47 2.02 2.67 2.66 1.94 3.29 74.39 72.15 2.25 74.79 72.15 2.64   0.40
     12 -0.91-1.25-0.60-0.79-1.50-0.20       75.47-1.07       75.59-0.80   0.28
      9  7.36 6.98 7.20 7.45 7.05 8.41       67.31 7.08       67.04 7.75   0.67
     13  0.29-0.51 0.50 0.59-0.13 1.34       74.61-0.22       74.11 0.68   0.90
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.35  1.30                   1.16  1.15 1.01  1.60  1.40 1.14   1.14
     12         1.23                         1.04 1.11        1.25 1.28   1.15
      9         1.42                         1.45 0.80        1.53 1.05   1.31
     13         1.48                         1.32 0.88        1.49 1.08   1.22
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.92(F 10 - 72.15)(1.14) + 74.79      0.89(F 12 - 75.59)(1.28) + 74.79

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7   6    0.821 0.775 0.717 0.705
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 78.5 76.6 74.6 78.7 79.6 77.0 78.6 77.5 79.5 76.9 80.1 78.8 80.0 78.0 77.8
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
S- 10  2.4  1.4  0.2  2.1  2.1  0.9  2.7  1.7  2.7  2.9  2.9  2.6  3.5  3.2  3.8
S-  9  7.1  6.1  5.4  7.7  6.9  4.9  7.8  7.2  7.5  8.3  8.0  7.6  7.6  8.2  8.7
S-  7  4.2  3.5  2.6  5.3  5.0  2.1  5.4  4.3  4.8  6.2  5.8  4.8  5.5  5.6  5.7
S-  6  5.6  5.8  5.7  7.9  7.2  4.1  7.9  7.7  6.5  8.9  8.2  7.8  6.6  7.5  8.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.25 1.90 2.38 2.54 1.59 3.08 77.48 75.44 2.04 78.14 75.81 2.34   0.30
      9  7.18 6.85 7.15 7.52 6.63 7.99       70.51 6.97       70.87 7.27   0.30
      7  4.55 4.44 4.31 4.77 4.04 5.51       73.07 4.41       73.42 4.73   0.32
      6  6.83 6.39 6.73 7.15 6.47 7.70       70.99 6.49       71.09 7.05   0.56
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.30  1.07                   1.09  0.93 1.17  1.44  1.08 1.33   1.14
      9         1.17                         1.06 1.03        1.25 1.15   1.12
      7         1.05                         0.92 1.19        1.18 1.21   1.02
      6         1.34                         1.30 0.84        1.57 0.91   1.09
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.91(F 10 - 75.81)(1.33) + 78.14      0.88(F  9 - 70.87)(1.15) + 78.14

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   9    0.859 0.786 0.767 0.748
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 77.7 73.3 73.3 77.0 78.2 75.6 76.8 75.7 78.0 76.8 79.3 76.3 78.8 76.3 77.4
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
S- 10  2.3  0.8 -0.1  2.2  1.9  0.9  2.8  1.4  2.6  3.0  3.0  2.6  3.6  3.2  4.0
S- 12 -0.6 -2.4 -3.3 -1.6 -0.7 -2.2 -0.3 -2.5  0.0 -1.0  0.0 -0.1  1.1 -0.4  0.5
S- 13  0.6 -0.8 -1.2 -0.1  0.5 -0.5  1.9 -1.2  1.8  1.4  1.0  1.8  2.2  1.2  2.0
S-  9  7.6  5.9  4.9  7.2  7.3  4.8  7.8  6.6  7.8  8.5  8.1  7.9  8.4  8.7  9.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.19 1.84 2.22 2.60 1.46 3.13 76.28 74.33 1.95 76.71 74.43 2.28   0.33
     12 -0.81-1.04-0.75-0.23-1.77 0.01       77.28-1.00       77.61-0.90   0.10
     13  0.54-0.12 0.61 1.15-0.25 1.64       76.22 0.06       76.00 0.70   0.64
      9  7.27 6.84 7.17 7.83 6.44 8.43       69.36 6.92       69.30 7.40   0.48
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.60  1.24                   1.33  1.12 1.19  1.67  1.08 1.54   1.29
     12         1.09                         0.92 1.44        0.97 1.72   1.20
     13         1.32                         1.12 1.19        1.23 1.35   1.14
      9         1.38                         1.36 0.98        1.21 1.38   1.41
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.93(F 10 - 74.43)(1.54) + 76.71      0.89(F 12 - 77.61)(1.72) + 76.71

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  13   9    0.856 0.790 0.774 0.773
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.3 69.7 69.4 70.9 69.1 66.8 71.0 70.3 71.4 69.5 71.9 69.0 72.9 71.0 71.0
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
S- 10  2.3  0.4  0.6  2.3  1.8  0.7  2.9  1.7  3.0  3.3  3.3  2.6  3.8  3.7  4.0
S-  7  4.9  3.4  3.5  5.8  5.4  3.2  5.6  4.7  5.7  7.0  7.0  5.7  6.1  6.3  6.7
S- 13  0.6 -1.3 -0.9  0.4  0.2 -1.4  1.7 -0.8  1.8  1.6  1.4  1.1  2.4  2.3  2.0
S-  9  7.6  5.4  5.7  7.6  7.2  5.5  8.4  7.1  8.0  8.5  8.6  7.7  8.8  8.9  9.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.31 1.80 2.27 2.79 1.61 3.39 70.15 68.22 1.93 70.35 67.92 2.43   0.50
      7  5.20 4.74 4.86 5.90 4.49 6.36       65.38 4.77       64.95 5.40   0.63
     13  0.53-0.27 0.55 1.24-0.26 1.79       70.25-0.09       69.62 0.73   0.82
      9  7.54 6.98 7.39 8.28 6.74 8.61       63.15 7.00       62.70 7.65   0.65
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.65  1.42                   1.50  1.31 1.14  1.43  1.07 1.34   1.17
      7         1.41                         1.37 1.09        1.22 1.17   1.07
     13         1.44                         1.41 1.07        1.10 1.30   1.21
      9         1.50                         1.33 1.13        1.10 1.30   1.15
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.93(F 10 - 67.92)(1.34) + 70.35      0.89(F  7 - 64.95)(1.17) + 70.35

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  12    0.867 0.816 0.801 0.794
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 61.6 59.5 64.6 63.0 60.2 57.1 62.5 62.7 62.6 62.0 62.7 61.9 62.1 61.1 61.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8
S- 10  2.1 -0.1  1.5  2.3  1.7  0.6  2.8  2.0  3.4  3.5  2.5  2.5  3.9  3.8  3.5
S-  9  8.0  5.5  7.1  8.1  7.4  6.0  9.1  7.5  9.2  9.1  9.0  7.8 10.1 10.0 10.0
S- 13  0.7 -2.1 -0.3 -0.1  0.3 -1.8  1.4 -0.2  2.2  1.8  1.2  1.1  2.3  2.1  1.9
S- 12 -2.2 -4.0 -3.8 -3.4 -2.7 -5.1 -2.1 -3.0 -0.5 -1.5 -2.2 -2.1 -0.9 -1.0 -1.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.39 1.83 2.44 2.91 1.73 3.31 61.30 59.27 2.03 61.66 59.25 2.41   0.38
      9  8.10 7.59 7.88 8.77 7.34 9.29       53.73 7.57       53.41 8.25   0.67
     13  0.53-0.22 0.54 1.10-0.19 1.82       61.38-0.08       60.96 0.70   0.78
     12 -2.08-2.53-1.75-1.50-3.04-1.37       63.61-2.31       64.06-2.40  -0.09
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.66  1.52                   0.95  0.78 1.21  1.69  1.55 1.10   0.90
      9         1.66                         0.90 1.05        1.63 1.04   0.99
     13         1.52                         0.79 1.19        1.60 1.06   0.88
     12         1.57                         0.77 1.23        1.65 1.02   0.83
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.93(F 10 - 59.25)(1.10) + 61.66      0.90(F  9 - 53.41)(1.04) + 61.66

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12  38    0.914 0.889 0.878 0.869
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 50.4 53.2 55.3 53.1 50.5 47.4 48.9 55.1 54.2 52.4 50.9 54.1 51.2 52.8 51.4
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S- 10  1.7 -0.1  2.8  2.0  1.5  0.4  2.4  2.0  3.4  3.4  1.5  2.0  3.6  4.2  2.9
S-  9  8.2  5.5  9.5  8.6  7.0  6.2  9.6  8.3  9.8  9.6  8.0  7.7 10.1 10.2  9.2
S- 12 -4.0 -4.7 -3.5 -4.4 -3.7 -5.4 -3.6 -3.4 -1.1 -2.2 -3.7 -3.0 -2.0 -1.4 -2.4
S- 38  6.2  3.8  7.9  7.0  5.0  3.7  7.6  6.9  7.6  7.7  6.8  5.4  8.6  7.7  7.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.32 1.73 2.46 2.88 1.73 3.01 51.27 49.29 1.98 52.07 49.82 2.25   0.27
      9  8.48 7.94 8.50 9.11 7.85 9.24       43.22 8.05       43.56 8.51   0.45
     12 -2.88-3.34-2.61-2.16-3.83-2.25       54.38-3.12       55.30-3.23  -0.11
     38  6.41 5.77 6.42 7.06 5.79 7.26       45.35 5.92       45.48 6.59   0.68
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.09  1.96                   1.45  1.43 1.02  2.16  2.11 1.02   1.01
      9         2.15                         1.54 0.94        2.26 0.96   1.02
     12         1.96                         1.49 0.97        2.02 1.07   1.10
     38         2.17                         1.48 0.98        2.20 0.98   1.00
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 49.82)(1.02) + 52.07      0.94(F  9 - 43.56)(0.96) + 52.07

Station#1864  HOPEWELL            , va  4410101    lat/lon 77.30   37.30    14M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.939 0.907 0.902 0.894
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.3 42.4 46.7 44.3 43.4 43.8 43.9 47.7 47.7 47.4 42.5 48.3 42.4 45.8 43.9
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
S- 10  1.2 -0.2  2.5  1.8  1.3  0.3  2.2  1.7  3.2  3.1  1.3  1.9  3.2  4.0  0.4
S- 12 -5.3 -5.6 -3.4 -5.5 -4.4 -6.1 -4.3 -3.9 -1.5 -3.2 -4.9 -3.4 -3.3 -2.6 -5.0
S-  9  8.1  6.6 10.0  8.4  6.9  5.7  9.6  8.2 10.6  9.4  8.8  8.4  9.8 10.6  6.6
S- 13 -1.8 -2.7  0.2 -1.2 -1.0 -2.6 -1.0 -0.2  1.2  1.3 -0.7  0.5  0.6  1.2 -0.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.14 1.66 2.53 2.65 1.50 2.45 44.08 42.12 1.96 44.76 42.90 1.87  -0.09
     12 -3.81-4.28-3.25-3.34-4.65-3.43       48.06-3.99       48.94-4.17  -0.19
      9  8.85 8.35 9.25 9.58 7.98 9.18       35.43 8.65       36.24 8.52  -0.13
     13 -0.48-1.39-0.23 0.14-1.11 0.47       45.11-1.04       45.23-0.47   0.57
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.46  2.36                   1.81  1.90 0.95  2.22  1.95 1.14   1.20
     12         2.40                         2.02 0.89        1.66 1.33   1.49
      9         2.64                         2.20 0.82        2.10 1.06   1.29
     13         2.24                         1.95 0.93        1.65 1.35   1.45
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.97(F 10 - 42.90)(1.14) + 44.76      0.95(F 12 - 48.94)(1.33) + 44.76

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 43.48 45.10 49.62 57.07 65.99 73.23 77.47 76.74 71.73 61.95 53.23 46.74
1952 45.22 46.50 51.57 59.44 69.28 76.17 79.89 77.86 70.24 61.27 51.26 47.19
1953 45.47 48.29 52.54 60.79 68.77 75.90 78.16 77.64 71.84 62.81 53.59 46.18
1954 44.78 45.95 52.82 58.52 67.42 73.31 77.99 77.70 72.98 63.12 51.72 42.47
1955 39.89 43.76 51.61 60.41 67.12 74.30 78.43 78.80 72.32 62.33 50.24 41.50
1956 39.63 43.35 49.71 56.36 65.72 73.12 77.23 75.62 70.69 61.93 55.60 47.16
1957 45.00 43.84 52.12 60.07 69.93 75.49 78.06 76.91 69.46 61.89 52.48 45.37
1958 39.66 38.79 46.11 56.26 65.75 73.67 77.63 77.26 70.48 62.79 50.92 43.30
1959 39.30 43.99 51.18 59.88 69.01 75.21 78.88 78.14 73.56 63.71 54.15 46.16
1960 43.13 40.85 47.82 56.01 68.26 73.18 77.35 76.18 70.26 60.83 48.58 39.87
1961 37.11 42.55 49.17 55.56 62.44 70.72 75.52 76.37 70.13 61.86 50.70 43.50
1962 40.22 41.68 47.78 56.38 65.54 71.31 73.58 71.98 67.69 58.81 48.21 39.91
1963 36.07 41.47 48.97 57.85 64.85 70.95 74.88 72.91 67.30 59.70 49.22 42.72
1964 38.46 43.35 48.12 56.85 64.86 72.51 75.18 74.14 66.69 59.89 51.65 46.02
1965 41.80 41.13 45.92 55.13 64.57 71.89 74.47 74.63 69.08 60.71 50.60 42.53
1966 38.71 40.91 47.33 55.04 62.88 70.74 74.90 74.08 67.66 59.31 50.08 45.07
1967 41.59 44.22 49.19 55.91 62.85 68.54 73.31 71.72 65.57 56.04 48.94 41.52
1968 37.81 39.72 46.62 56.10 64.17 71.88 77.66 76.86 71.71 62.92 52.62 43.95
1969 39.23 40.64 47.79 56.63 67.40 74.29 77.30 74.74 68.24 58.94 49.02 39.63
1970 36.61 38.00 45.50 55.13 65.84 73.19 76.36 75.81 71.22 62.55 52.72 43.82
1971 41.59 42.31 48.60 55.33 65.13 72.71 76.64 75.93 71.59 63.16 55.87 48.98
1972 45.67 44.54 48.39 56.23 63.87 71.15 74.81 75.10 68.79 60.49 52.46 45.57
1973 41.77 43.16 49.40 58.13 66.15 73.29 77.72 77.27 72.17 63.93 54.53 49.52
1974 46.12 48.06 51.71 59.06 65.69 71.71 75.66 75.32 68.54 60.02 51.50 47.29
1975 44.83 45.78 48.61 56.10 65.43 73.14 77.14 75.88 71.23 63.34 53.81 45.29
1976 43.51 46.73 54.06 58.98 66.03 72.22 75.86 74.24 66.38 55.49 45.48 36.74
1977 36.11 41.71 52.90 61.42 67.86 74.43 78.69 79.37 72.78 64.30 53.22 45.02
1978 37.24 37.67 44.11 55.19 65.41 72.24 78.32 77.62 71.78 62.86 53.40 46.37
1979 39.09 40.88 47.10 58.01 65.09 71.99 75.84 75.99 69.66 61.69 52.01 44.93
1980 38.66 39.71 46.45 56.88 66.42 74.33 79.33 79.91 73.02 62.11 50.88 41.14
1981 39.12 40.30 49.92 57.48 68.85 75.54 78.75 76.11 68.96 60.38 49.86 41.43
1982 37.88 39.67 46.33 56.22 65.01 72.31 74.00 73.97 68.59 61.91 54.38 47.55
1983 43.26 44.28 49.91 58.46 66.30 74.64 79.24 78.80 72.74 63.70 53.09 43.90
1984 41.98 43.52 50.29 57.15 67.44 74.30 78.03 75.99 72.93 63.16 56.31 45.17
1985 42.28 42.79 52.53 61.61 68.78 74.04 76.50 76.04 71.41 65.34 54.83 46.02
1986 40.99 44.61 50.72 59.04 67.55 75.44 78.57 77.20 71.52 63.26 53.51 44.71
1987 40.00 40.83 46.55 56.19 66.48 75.25 79.26 78.55 70.24 62.06 53.00 46.17
1988 42.22 43.28 50.01 57.98 66.09 73.99 78.53 76.85 68.87 59.95 51.08 47.30
1989 44.01 46.19 49.85 56.76 66.20 73.37 77.65 76.12 71.14 62.27 49.24 44.10
1990 43.54 50.02 53.32 58.58 66.13 74.14 78.76 77.35 71.56 63.44 56.68 49.61
1991 46.54 46.73 52.44 60.88 68.81 75.53 77.96 76.67 69.89 60.80 52.46 46.03
1992 43.72 44.26 49.48 55.19 62.90 70.56 74.92 75.40 68.02 61.28 51.63 46.53
1993 41.75 42.96 47.80 57.43 67.22 75.98 79.69 78.96 71.51 62.68 51.76 43.28
1994 39.75 43.19 52.65 59.13 68.02 73.74 78.01 75.57 68.36 61.49 53.90 48.07
1995 43.05 43.72 48.96 57.50 65.59 73.21 77.99 77.12 71.11 60.57 50.14 41.46
1996 38.82 40.38 47.35 55.81 66.06 72.49 75.53 74.44 68.93 59.29 50.85 43.91
1997 44.03 45.71 50.27 55.94 62.82 70.99 75.01 74.72 68.87 60.34 50.71 43.43

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.957 0.933 0.929 0.911
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.3 42.0 42.3 41.0 40.0 42.2 44.0 43.5 46.5 43.7 41.8 39.8 43.0 38.8 44.0
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 12 46.4 45.2 46.5 45.9 45.0 44.3 47.6 47.7 49.7 48.6 46.9 44.9 47.2 44.5 48.3
S- 10  2.6  3.5  2.0  2.0  1.7  4.1  3.3  2.6  3.1  1.0  1.4  2.2  1.6  1.6  2.2
S-  9  8.0 10.6  9.4  9.5  7.6 10.1  9.5  9.8 10.2  8.0  7.9  9.4  8.9  8.2  8.6
S-  7  7.0  9.2  7.4  8.7  6.8  9.4  9.0  9.0  9.2  7.3  7.4  9.4  7.2  7.4  7.3
S- 12 -3.2 -3.2 -4.2 -4.9 -5.0 -2.1 -3.6 -4.2 -3.1 -4.9 -5.2 -5.1 -4.1 -5.7 -4.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.01 2.18 1.32 2.16 2.49 1.87 41.28 39.40 1.89 42.40 40.07 2.32   0.44
      9  8.90 8.78 8.38 9.40 9.14 8.74       32.62 8.66       33.35 9.05   0.39
      7  7.90 7.81 7.40 8.32 8.10 7.89       33.45 7.83       34.28 8.12   0.29
     12 -4.54-4.18-5.26-4.61-4.06-4.62       45.96-4.68       46.58-4.18   0.50
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.85  2.48                   2.97  2.49 1.19  1.91  1.82 1.05   0.88
      9         2.89                         2.99 0.99        1.85 1.03   1.04
      7         2.52                         2.68 1.11        2.00 0.96   0.86
     12         2.62                         2.72 1.09        1.56 1.23   1.12
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 40.07)(1.05) + 42.40      0.97(F  9 - 33.35)(1.03) + 42.40

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  12    0.954 0.912 0.908 0.905
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.3 43.5 42.8 44.6 40.8 43.3 46.2 50.0 46.7 44.3 43.0 43.2 43.7 40.4 45.7
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0
S- 10  2.5  2.9  1.9  2.1  0.6  3.4  2.7  1.8  1.8  0.6  1.4  2.4  0.8  1.0  1.5
S-  9  8.2  9.7  9.3  8.8  5.5  9.3  8.0  8.0  8.7  7.2  7.7 10.0  7.7  7.6  7.8
S- 13 -0.1 -1.6 -1.9 -2.1 -3.1  0.2 -1.5 -1.3 -1.3 -2.9 -1.8 -2.1 -2.3 -3.0 -3.2
S- 12 -2.8 -4.2 -4.7 -4.9 -5.6 -2.6 -4.6 -4.5 -4.4 -5.5 -5.5 -5.9 -5.1 -6.5 -6.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.52 1.72 1.00 1.64 1.86 1.35 43.37 41.89 1.48 44.16 42.35 1.82   0.33
      9  8.16 8.40 7.64 8.55 8.09 8.11       35.21 8.16       35.92 8.24   0.08
     13 -2.28-2.17-2.75-2.19-1.93-2.37       45.76-2.39       46.03-1.87   0.53
     12 -5.17-4.83-5.59-5.26-4.73-5.58       48.54-5.17       49.03-4.87   0.30
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.71  2.45                   2.36  2.14 1.10  2.29  2.25 1.02   0.92
      9         2.79                         2.46 0.96        2.36 0.97   1.01
     13         2.57                         2.47 0.96        2.21 1.04   1.08
     12         2.68                         2.35 1.00        2.27 1.01   1.01
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.35)(1.02) + 44.16      0.96(F  9 - 35.92)(0.97) + 44.16

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.926 0.880 0.858 0.827
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 49.9 50.3 52.5 50.7 46.5 50.0 49.8 53.3 52.4 49.5 47.8 52.7 49.0 47.3 50.3
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10  2.6  2.7  2.1  1.2  0.2  2.5  1.9  1.0  1.2  0.4  1.6  2.4  0.4  1.0  0.9
S-  7  7.1  8.3  7.3  7.6  4.0  7.4  7.6  6.8  6.5  6.8  7.7  9.6  6.4  6.1  5.8
S-  9  8.0  8.8  8.9  6.6  4.7  8.1  7.7  7.1  7.2  6.3  7.9  9.1  6.8  7.5  6.9
S- 13 -0.2 -1.0 -1.2 -3.5 -3.4 -1.1 -2.4 -2.1 -2.4 -3.0 -1.2 -1.3 -3.6 -2.7 -3.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.17 1.64 0.46 1.21 1.42 1.12 49.67 48.40 1.28 50.14 48.67 1.47   0.19
      7  6.71 7.10 6.12 6.80 6.63 6.99       42.80 6.87       43.14 7.00   0.13
      9  7.23 7.98 6.25 7.38 7.22 7.39       42.19 7.48       42.70 7.44  -0.04
     13 -2.60-1.97-3.57-2.59-2.33-2.52       52.13-2.46       52.32-2.17   0.28
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.35  1.97                   2.17  1.95 1.11  1.93  1.80 1.07   0.97
      7         1.89                         1.67 1.30        1.66 1.16   0.89
      9         2.04                         2.10 1.03        1.69 1.14   1.11
     13         1.96                         2.04 1.06        1.92 1.01   0.95
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.96(F 10 - 48.67)(1.07) + 50.14      0.94(F  7 - 43.14)(1.16) + 50.14

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12   8    0.863 0.837 0.726 0.723
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 58.5 57.2 61.6 59.0 56.2 58.0 56.8 58.6 60.9 55.2 57.4 59.1 57.5 55.8 55.9
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
cd  8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3
S- 10  3.0  2.9  2.4  1.4  0.2  2.3  1.5  0.7  1.0  0.1  1.8  1.9  0.2  0.9  0.9
S-  7  7.1  8.0  6.8  5.3  3.4  6.1  5.9  5.7  5.4  5.2  6.5  7.2  5.1  5.8  5.2
S- 12 -1.6 -3.5 -2.0 -3.9 -4.3 -2.7 -4.1 -4.7 -4.3 -4.7 -2.7 -3.5 -6.1 -5.0 -5.8
S-  8 12.3 13.9 12.0  9.8  6.9 10.6 11.0 10.5  9.4  9.2 10.8 13.1 10.4 10.6 10.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.03 1.56-0.01 1.03 1.58 0.96 57.77 56.76 1.01 57.84 56.44 1.41   0.40
      7  5.63 6.34 4.75 5.48 5.85 5.77       52.01 5.77       51.92 5.92   0.15
     12 -4.27-3.50-5.44-4.29-3.62-4.60       61.92-4.15       61.78-3.93   0.21
      8 10.4111.12 9.2810.4210.6810.60       47.2510.52       47.0910.75   0.23
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.81  1.52                   1.86  1.54 1.21  1.77  1.62 1.09   0.90
      7         1.59                         1.43 1.30        1.74 1.02   0.79
     12         1.46                         1.46 1.27        1.58 1.12   0.88
      8         1.74                         1.57 1.18        2.03 0.87   0.74
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.93(F 10 - 56.44)(1.09) + 57.84      0.92(F  7 - 51.92)(1.02) + 57.84

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12   4    0.893 0.876 0.799 0.788
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.3 67.4 68.8 67.6 66.5 66.1 66.2 66.1 68.8 62.9 67.2 68.0 65.6 66.1 62.8
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd  4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9
S- 10  3.1  2.9  2.0  0.8  1.1  2.3  1.6  1.1  0.9  0.2  1.8  1.7  0.6  0.8  1.1
S-  7  6.1  6.5  6.0  4.5  4.1  5.1  5.0  4.9  4.1  3.9  5.5  5.0  4.6  4.7  3.7
S- 12 -0.7 -1.3 -2.0 -3.4 -2.6 -1.8 -2.7 -3.7 -3.1 -4.1 -1.7 -1.9 -4.6 -3.8 -3.3
S-  4 10.2 11.2 12.1  9.8  8.9  9.8  9.8 10.3  8.8  7.9 10.0 10.5 10.0  9.8  7.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.15 1.63 0.00 1.30 1.77 1.01 66.63 65.60 1.04 66.43 64.96 1.47   0.43
      7  4.71 5.49 3.50 4.71 5.29 4.51       61.88 4.75       61.50 4.92   0.17
     12 -3.08-2.44-4.32-3.06-2.44-3.20       69.77-3.14       69.13-2.71   0.43
      4  9.6810.75 8.56 9.4110.29 9.26       56.71 9.93       56.63 9.79  -0.14
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.83  1.42                   2.05  1.39 1.47  1.70  1.58 1.07   0.73
      7         1.33                         1.27 1.61        1.46 1.16   0.72
     12         1.33                         1.16 1.77        1.56 1.09   0.62
      4         1.27                         1.27 1.61        1.24 1.37   0.85
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.94(F 10 - 64.96)(1.07) + 66.43      0.94(F  7 - 61.50)(1.16) + 66.43

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   7  13    0.856 0.805 0.781 0.774
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.6 74.3 74.0 75.4 75.3 74.0 73.4 74.1 75.5 70.6 76.0 73.7 73.2 72.5 71.0
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
S- 10  3.3  2.9  2.2  1.5  1.3  2.7  1.6  2.0  0.8  0.5  2.2  1.4  1.0  0.8  1.3
S- 12 -0.1 -0.5 -1.6 -2.2 -1.2 -0.1 -1.9 -2.2 -2.0 -3.6 -1.2 -1.4 -2.6 -3.5 -2.2
S-  7  5.7  5.8  5.0  4.4  4.1  3.9  4.3  5.2  3.3  3.7  5.5  3.9  3.7  4.4  3.5
S- 13  1.0  1.2  0.2 -1.4 -0.6  1.1  0.5 -0.4 -0.3 -1.6 -0.1  0.2 -1.1 -2.2 -0.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.44 1.82 0.32 1.74 2.08 1.14 73.40 72.15 1.25 73.84 72.15 1.70   0.45
     12 -1.94-1.46-2.95-1.71-1.36-2.35       75.47-2.07       75.59-1.75   0.32
      7  4.12 4.80 2.74 4.21 4.78 4.00       69.39 4.00       69.42 4.42   0.42
     13 -0.73-0.72-1.85-0.33 0.02-0.81       74.61-1.21       74.11-0.27   0.94
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.69  1.30                   1.70  1.15 1.47  1.51  1.40 1.08   0.73
     12         1.23                         1.04 1.63        1.25 1.21   0.74
      7         1.20                         1.07 1.58        1.38 1.09   0.69
     13         1.48                         1.32 1.29        1.49 1.02   0.79
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.93(F 10 - 72.15)(1.08) + 73.84      0.90(F 12 - 75.59)(1.21) + 73.84

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12  11    0.895 0.822 0.812 0.808
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 79.2 78.0 76.5 78.6 79.3 78.5 77.7 78.8 78.0 74.9 79.7 78.0 78.0 75.5 75.0
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
S- 10  3.1  2.9  2.1  1.9  1.7  2.5  1.8  3.0  1.2  0.9  2.5  1.8  1.5  0.8  1.0
S- 13  1.2  1.5  0.2 -0.7  0.2  1.1  0.9  0.6  0.4 -0.8  0.4  1.0  0.2 -1.3 -0.6
S- 12  0.5  0.1 -1.5 -1.5 -0.6  0.2 -1.0 -0.7 -1.2 -3.0 -0.4 -0.5 -0.8 -2.4 -1.9
S- 11  6.4  6.3  5.3  5.0  5.6  6.0  6.1  6.6  5.3  4.8  5.8  5.9  4.9  4.0  4.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.70 2.14 0.60 2.09 2.20 1.37 76.98 75.44 1.54 77.71 75.81 1.90   0.36
     13 -0.05-0.04-0.99 0.51 0.36-0.11       77.48-0.50       77.42 0.29   0.78
     12 -1.09-0.58-2.11-0.60-0.83-1.44       78.24-1.26       78.68-0.97   0.29
     11  5.03 5.11 3.96 5.56 5.53 5.01       72.39 4.59       72.21 5.50   0.91
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.71  1.07                   1.76  0.93 1.88  1.48  1.08 1.37   0.73
     13         1.24                         1.16 1.51        1.16 1.28   0.85
     12         1.03                         0.92 1.90        0.88 1.69   0.89
     11         1.21                         1.17 1.50        1.06 1.39   0.93
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.95(F 10 - 75.81)(1.37) + 77.71      0.91(F 13 - 77.42)(1.28) + 77.71

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12  13    0.896 0.846 0.846 0.817
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 78.8 76.0 76.0 77.2 78.6 76.8 76.1 77.3 76.7 75.4 79.0 75.6 77.1 74.4 74.7
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
S- 10  3.4  3.4  2.6  2.3  2.3  2.2  2.1  3.1  1.3  1.5  2.6  1.9  2.0  1.3  1.2
S-  9  8.6  8.5  7.6  7.4  7.7  6.1  7.1  8.3  6.5  7.1  7.8  7.2  6.7  6.8  6.9
S- 12  0.5  0.2 -0.6 -1.4 -0.3 -0.9 -1.0 -0.9 -1.3 -2.4 -0.3 -0.8 -0.5 -2.3 -2.2
S- 13  1.6  1.9  1.5  0.0  0.9  0.8  1.2  0.4  0.5  0.0  0.6  1.2  0.6 -0.7 -0.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.97 2.47 0.79 2.22 2.60 1.70 76.19 74.33 1.86 76.65 74.43 2.22   0.36
      9  7.05 7.47 5.74 7.45 7.57 7.00       69.36 6.83       69.30 7.35   0.52
     12 -1.03-0.41-2.18-0.61-0.63-1.42       77.28-1.09       77.61-0.95   0.14
     13  0.31 0.51-0.83 0.76 0.88 0.21       76.22-0.03       76.00 0.65   0.68
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.79  1.24                   1.92  1.12 1.72  1.34  1.08 1.24   0.72
      9         1.38                         1.36 1.42        1.21 1.11   0.79
     12         1.09                         0.92 2.07        0.97 1.39   0.67
     13         1.32                         1.12 1.71        1.23 1.09   0.63
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.95(F 10 - 74.43)(1.24) + 76.65      0.92(F  9 - 69.30)(1.11) + 76.65

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   9    0.882 0.845 0.838 0.823
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.7 72.9 71.4 71.5 70.2 68.9 71.1 71.6 69.9 68.0 71.5 68.4 71.1 68.9 68.9
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
S- 10  3.8  3.7  2.6  3.0  3.0  2.7  3.0  3.0  1.5  1.9  2.9  2.0  2.0  1.6  1.8
S- 12 -0.1  0.4 -1.7 -1.2 -0.8 -1.6 -0.7 -1.8 -2.0 -2.6 -1.0 -1.8 -1.6 -2.1 -2.3
S- 13  2.0  1.9  1.1  1.0  1.3  0.7  1.8  0.4  0.2  0.1  1.0  0.5  0.5  0.2 -0.2
S-  9  9.0  8.6  7.7  8.2  8.3  7.5  8.5  8.4  6.4  7.0  8.2  7.1  7.0  6.8  7.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.22 2.73 0.99 2.31 3.04 1.95 70.30 68.22 2.07 70.47 67.92 2.56   0.48
     12 -1.48-0.89-2.65-1.14-0.95-1.90       71.85-1.55       71.86-1.39   0.16
     13  0.45 0.66-0.74 0.77 1.16 0.35       70.25 0.05       69.62 0.85   0.80
      9  7.45 7.91 6.11 7.80 8.16 7.18       63.15 7.14       62.70 7.78   0.63
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.94  1.42                   1.96  1.31 1.49  1.52  1.07 1.43   0.96
     12         1.30                         1.13 1.73        1.01 1.51   0.87
     13         1.44                         1.41 1.39        1.10 1.38   0.99
      9         1.50                         1.33 1.47        1.10 1.39   0.94
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.94(F 10 - 67.92)(1.43) + 70.47      0.92(F 12 - 71.86)(1.51) + 70.47

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   9    0.877 0.848 0.842 0.818
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 63.7 63.2 65.3 63.3 62.1 60.0 62.3 63.4 60.8 61.3 62.7 61.5 60.6 59.3 60.3
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
S- 10  4.2  3.6  2.2  2.6  3.6  3.5  2.6  2.7  1.6  2.7  2.5  2.1  2.4  2.0  2.4
S- 12 -0.1 -0.3 -3.1 -3.1 -0.8 -2.2 -2.3 -2.2 -2.3 -2.3 -2.2 -2.5 -2.4 -2.9 -2.5
S- 13  2.8  1.6  0.4  0.2  2.2  1.1  1.2  0.6  0.4  1.0  1.2  0.7  0.8  0.3  0.8
S-  9 10.1  9.2  7.8  8.4  9.4  8.9  8.9  8.3  7.4  8.3  9.0  7.3  8.6  8.2  8.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.39 2.88 1.26 2.40 3.12 2.24 61.57 59.27 2.30 61.98 59.25 2.72   0.42
     12 -2.08-1.48-2.93-2.01-1.65-2.44       63.61-2.04       64.06-2.08  -0.05
     13  0.53 0.83-0.63 0.58 1.20 0.75       61.38 0.20       60.96 1.02   0.82
      9  8.10 8.64 6.70 8.25 8.73 8.22       53.73 7.84       53.41 8.56   0.72
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.93  1.52                   1.33  0.78 1.69  1.59  1.55 1.03   0.61
     12         1.57                         0.77 1.72        1.65 0.96   0.56
     13         1.52                         0.79 1.67        1.60 0.99   0.60
      9         1.66                         0.90 1.47        1.63 0.98   0.66
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.94(F 10 - 59.25)(1.03) + 61.98      0.92(F 12 - 64.06)(0.96) + 61.98

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  12    0.910 0.894 0.887 0.883
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.1 56.3 54.8 53.5 53.0 51.1 49.2 56.7 52.5 51.6 51.8 53.9 50.1 50.8 50.7
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8
S- 10  4.4  3.0  2.3  2.4  4.0  4.0  2.7  3.6  1.7  2.6  2.3  1.9  2.6  2.2  2.2
S-  7  8.4  7.4  8.0  7.6  8.0  7.6  7.7  7.7  6.0  7.2  7.1  6.1  6.7  6.2  5.5
S-  9 10.9  8.6  9.0  9.0  9.5  9.9  9.9 10.0  8.0  8.8  8.9  7.6  9.1  8.2  8.5
S- 12 -1.3 -1.5 -3.9 -4.0 -1.1 -1.8 -3.3 -1.8 -2.8 -3.0 -2.9 -3.2 -3.0 -3.4 -3.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.43 2.72 1.42 2.50 3.21 2.20 51.48 49.29 2.19 52.61 49.82 2.79   0.61
      7  6.67 6.84 5.65 6.87 7.50 6.41       45.16 6.31       45.46 7.15   0.84
      9  8.58 8.93 7.46 8.74 9.32 8.43       43.22 8.26       43.56 9.05   0.79
     12 -2.77-2.36-3.65-2.54-2.35-3.06       54.38-2.91       55.30-2.68   0.22
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.27  1.96                   2.00  1.43 1.40  2.10  2.11 1.00   0.71
      7         1.92                         1.48 1.35        1.99 1.06   0.78
      9         2.15                         1.54 1.30        2.26 0.93   0.72
     12         1.96                         1.49 1.34        2.02 1.04   0.78
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.95(F 10 - 49.82)(1.00) + 52.61      0.95(F  7 - 45.46)(1.06) + 52.61

Station#1865  LANGLEY/AFB         , va  4472001    lat/lon 76.35   37.08    24M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12   7    0.943 0.935 0.924 0.911
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.9 45.2 46.0 44.7 46.2 47.3 44.1 49.6 46.0 46.5 43.3 48.1 41.5 43.9 43.4
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
S- 10  3.8  2.6  1.8  2.2  4.1  3.9  2.4  3.6  1.5  2.3  2.1  1.7  2.3  2.1 -0.1
S-  9 10.7  9.4  9.3  8.8  9.7  9.3  9.8 10.1  8.9  8.5  9.6  8.2  8.8  8.8  6.1
S- 12 -2.7 -2.8 -4.1 -5.1 -1.6 -2.5 -4.1 -2.0 -3.2 -4.1 -4.2 -3.6 -4.3 -4.5 -5.5
S-  7  8.9  7.4  7.7  7.8  9.1  8.5  8.3  9.3  6.9  7.5  8.3  6.2  7.6  6.9  3.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.18 2.26 1.48 2.35 2.98 1.69 44.04 42.12 1.92 45.31 42.90 2.42   0.50
      9  8.89 8.95 8.20 9.29 9.47 8.42       35.43 8.61       36.24 9.07   0.46
     12 -3.77-3.68-4.30-3.64-3.16-4.18       48.06-4.02       48.94-3.62   0.40
      7  7.37 7.39 6.78 7.68 8.11 6.70       36.91 7.13       37.72 7.59   0.46
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.72  2.36                   2.45  1.90 1.29  2.03  1.95 1.04   0.81
      9         2.64                         2.20 1.11        2.10 0.96   0.87
     12         2.40                         2.02 1.21        1.66 1.22   1.00
      7         2.43                         1.96 1.25        2.15 0.94   0.75
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 42.90)(1.04) + 45.31      0.97(F  9 - 36.24)(0.96) + 45.31

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 42.64 45.39 50.35 57.28 65.98 72.63 76.83 75.36 70.30 60.01 50.89 45.05
1952 44.26 46.00 50.68 58.31 68.68 75.56 78.75 75.67 67.30 58.80 48.84 45.20
1953 43.57 47.01 51.90 60.76 69.41 76.34 78.18 76.54 70.26 60.39 51.27 44.45
1954 43.62 45.75 53.03 58.66 66.82 71.94 76.82 76.69 71.36 60.90 49.28 41.01
1955 39.57 44.76 52.77 60.92 66.13 72.57 76.26 76.97 69.70 59.55 47.62 40.62
1956 39.44 43.53 49.54 56.95 65.76 72.73 76.11 74.30 68.88 59.56 53.48 45.70
1957 44.43 43.93 52.06 59.56 68.87 74.40 76.99 75.69 67.73 59.62 50.16 43.71
1958 38.64 38.78 46.29 56.30 65.12 72.38 75.66 74.67 67.38 59.90 48.86 42.36
1959 38.61 42.81 50.15 58.89 67.98 73.61 76.80 75.39 69.88 60.56 51.11 44.26
1960 41.23 39.18 46.22 53.97 66.91 71.86 76.50 75.05 69.34 60.00 48.59 40.03
1961 37.74 43.23 49.88 56.30 62.98 71.12 75.61 76.21 69.50 61.39 49.88 42.84
1962 39.03 41.01 47.42 56.85 66.26 72.79 74.80 72.84 67.34 57.99 47.62 39.84
1963 35.20 40.88 48.40 58.69 65.24 71.26 74.91 73.14 66.76 58.52 47.23 41.00
1964 36.59 42.81 49.07 58.64 66.55 72.92 75.63 73.61 65.91 58.13 49.90 44.47
1965 41.41 41.54 48.03 57.97 66.62 72.83 74.90 75.29 68.86 59.59 49.94 42.52
1966 38.91 41.26 48.28 56.91 64.75 72.26 75.58 74.15 66.96 58.32 48.69 44.18
1967 40.17 43.88 49.63 57.44 64.27 69.13 73.30 71.61 65.67 55.98 48.91 41.51
1968 38.18 40.89 48.35 57.67 64.66 71.03 76.08 74.87 69.39 60.51 50.08 41.67
1969 37.34 39.32 47.48 56.28 66.75 72.75 75.58 73.22 66.96 58.06 48.05 39.36
1970 37.21 39.71 48.05 56.61 66.02 71.95 74.75 74.81 69.87 61.41 50.98 42.52
1971 39.44 40.73 47.22 54.69 64.13 70.92 74.51 73.33 69.54 61.21 54.42 47.37
1972 44.40 43.86 48.36 56.24 63.13 69.32 73.10 73.20 66.61 57.55 49.41 43.63
1973 40.87 43.54 49.39 57.24 64.33 70.69 74.86 74.08 69.03 61.14 50.99 46.83
1974 43.57 47.35 51.13 58.79 64.55 69.88 72.73 71.98 65.37 56.79 48.06 43.38
1975 41.79 43.49 47.31 54.89 63.62 70.52 73.87 72.56 68.18 59.97 50.26 41.79
1976 40.74 45.34 52.86 57.59 64.00 69.87 73.33 71.68 64.53 54.68 45.29 36.43
1977 35.67 40.78 52.06 60.45 66.26 72.20 75.78 76.49 69.02 60.18 49.30 41.28
1978 34.95 36.62 45.02 55.42 64.65 70.27 74.24 73.34 67.28 59.69 50.97 44.73
1979 37.74 40.22 47.15 58.33 64.48 69.77 73.34 73.68 68.46 60.60 51.56 44.71
1980 39.24 40.38 47.28 57.36 65.83 72.20 76.69 77.51 70.37 59.27 48.01 39.98
1981 38.82 40.61 50.29 56.94 67.49 72.44 75.15 71.59 64.56 56.79 46.98 39.22
1982 37.32 41.68 49.44 57.71 65.04 71.87 73.30 72.19 66.49 59.76 53.00 45.80
1983 41.83 43.08 48.79 56.55 63.26 71.02 75.73 75.20 69.34 60.35 49.92 41.42
1984 40.08 42.52 49.37 55.66 65.34 71.60 74.93 72.04 68.99 59.17 53.41 42.81
1985 40.97 41.93 51.36 59.82 66.65 71.16 73.32 71.89 67.87 63.67 54.22 45.70
1986 39.76 43.25 50.46 58.19 66.82 74.12 76.97 75.39 69.20 61.68 51.85 43.16
1987 39.12 41.06 46.72 55.59 64.69 73.44 77.07 75.67 66.22 57.31 48.53 42.08
1988 38.34 40.06 47.93 55.62 62.81 69.16 73.64 72.83 65.76 56.42 47.55 44.05
1989 42.30 44.70 48.47 55.20 64.23 71.68 75.75 74.42 68.48 60.04 46.39 41.65
1990 40.76 48.15 51.96 57.65 64.94 72.09 75.35 74.01 67.92 59.96 51.44 44.12
1991 41.64 43.30 49.42 57.96 65.74 73.07 75.35 74.71 67.43 58.78 50.41 45.33
1992 43.10 44.04 49.59 55.85 64.04 71.04 74.66 74.04 66.01 58.39 48.74 43.73
1993 39.78 41.18 45.85 55.37 64.96 73.43 76.70 75.90 67.84 58.80 47.58 39.67
1994 36.59 40.32 49.78 57.06 66.15 72.22 75.54 72.43 64.61 57.96 51.43 46.38
1995 41.76 42.98 48.63 57.63 65.55 72.93 77.23 75.74 69.52 57.79 46.55 38.21
1996 36.82 39.00 46.03 54.71 65.53 71.77 74.59 72.69 66.89 56.84 48.67 41.67
1997 41.64 43.69 48.87 55.04 62.07 70.19 74.19 73.32 66.61 57.17 47.91 41.39

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13   7    0.950 0.936 0.933 0.926
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.8 40.1 41.0 39.8 39.1 38.3 42.3 40.8 41.6 43.1 39.8 36.6 41.8 36.8 41.6
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
S- 10  1.1  1.6  0.7  0.8  0.8  0.2  1.6 -0.2 -1.8  0.4 -0.6 -1.0  0.3 -0.4 -0.2
S-  9  6.6  8.7  8.1  8.2  6.7  6.2  7.8  7.1  5.3  7.4  5.9  6.3  7.6  6.2  6.2
S- 13 -1.5 -1.7 -2.5 -2.8 -2.3 -2.6 -2.0 -3.9 -4.2 -2.9 -3.1 -4.5 -1.9 -4.0 -3.1
S-  7  5.6  7.3  6.1  7.4  6.0  5.5  7.3  6.2  4.2  6.7  5.4  6.2  6.0  5.4  4.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.65 1.23 0.74 0.54 0.89-0.46 40.40 39.40 1.00 40.30 40.07 0.23  -0.78
      9  7.54 7.83 7.79 7.78 7.54 6.41       32.62 7.78       33.35 6.95  -0.83
     13 -2.66-2.32-2.69-2.72-2.42-3.39       42.99-2.59       43.16-2.86  -0.27
      7  6.54 6.85 6.82 6.70 6.50 5.56       33.45 6.95       34.28 6.02  -0.92
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.47  2.48                   2.79  2.49 1.12  1.87  1.82 1.02   0.92
      9         2.89                         2.99 0.93        1.85 1.01   1.08
     13         2.54                         2.78 1.00        1.66 1.12   1.12
      7         2.52                         2.68 1.04        2.00 0.93   0.90
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 40.07)(1.02) + 40.30      0.97(F  9 - 33.35)(1.01) + 40.30

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  38    0.953 0.939 0.934 0.930
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.1 42.5 41.9 43.3 41.1 40.1 44.7 48.2 43.3 44.0 41.2 40.3 43.0 39.0 43.7
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10  1.3  1.9  1.0  0.7  0.8  0.2  1.2 -0.1 -1.7  0.4 -0.4 -0.5  0.0 -0.4 -0.5
S- 13 -1.3 -2.6 -2.7 -3.4 -2.8 -3.0 -3.0 -3.2 -4.7 -3.1 -3.6 -5.0 -3.0 -4.4 -5.2
S-  9  7.0  8.7  8.5  7.4  5.7  6.1  6.5  6.2  5.3  7.0  6.0  7.2  7.0  6.2  5.8
S- 38  4.3  6.7  7.1  4.6  2.3  4.2  4.3  3.9  3.3  4.4  4.0  5.4  4.7  4.3  3.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.85 1.39 1.08 0.82 1.02-0.43 43.11 41.89 1.22 42.62 42.35 0.27  -0.95
     13 -2.95-2.50-2.66-3.01-2.78-4.15       45.76-2.66       46.03-3.41  -0.76
      9  7.49 8.08 7.73 7.73 7.25 6.34       35.21 7.90       35.92 6.70  -1.20
     38  5.22 5.55 5.49 5.66 4.83 4.27       37.64 5.47       38.13 4.48  -0.98
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.42  2.45                   2.39  2.14 1.12  2.15  2.25 0.96   0.86
     13         2.57                         2.47 0.97        2.21 0.97   1.01
      9         2.79                         2.46 0.97        2.36 0.91   0.93
     38         3.03                         2.71 0.88        2.54 0.85   0.96
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.98(F 10 - 42.35)(0.96) + 42.62      0.97(F 13 - 46.03)(0.97) + 42.62

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  38    0.916 0.892 0.888 0.871
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.8 49.4 51.4 50.5 46.7 47.9 48.5 52.0 49.4 49.6 45.8 49.8 48.6 46.0 48.9
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
S- 10  1.5  1.8  1.0  0.9  0.4  0.4  0.5 -0.3 -1.8  0.5 -0.3 -0.5  0.0 -0.4 -0.5
S-  9  6.9  7.9  7.7  6.3  4.8  6.0  6.3  5.8  4.2  6.4  5.9  6.2  6.4  6.2  5.5
S- 13 -1.3 -1.9 -2.4 -3.8 -3.3 -3.2 -3.8 -3.5 -5.4 -2.9 -3.2 -4.2 -3.9 -4.0 -4.8
S- 38  4.3  5.4  5.5  3.5  1.2  4.1  3.6  3.6  1.5  3.4  3.8  4.2  3.5  4.4  3.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.90 1.43 1.28 0.86 0.95-0.42 49.72 48.40 1.32 48.88 48.67 0.21  -1.11
      9  6.96 7.77 7.07 7.02 6.76 5.85       42.19 7.53       42.70 6.18  -1.35
     13 -2.87-2.18-2.75-2.94-2.79-4.06       52.13-2.41       52.32-3.43  -1.03
     38  4.33 5.14 4.30 4.36 4.14 3.44       44.93 4.79       45.19 3.69  -1.10
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.96  1.97                   2.10  1.95 1.08  1.69  1.80 0.94   0.88
      9         2.04                         2.10 1.00        1.69 1.00   1.00
     13         1.96                         2.04 1.03        1.92 0.88   0.86
     38         2.21                         2.29 0.92        1.81 0.93   1.02
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 48.67)(0.94) + 48.88      0.94(F  9 - 42.70)(1.00) + 48.88

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  11    0.881 0.868 0.829 0.816
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.5 55.7 59.8 58.2 55.6 55.6 55.2 57.7 58.0 55.8 55.4 57.1 57.6 54.7 55.0
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1
S- 10  1.1  1.4  0.6  0.5 -0.4 -0.1  0.0 -0.3 -2.0  0.7 -0.3 -0.2  0.3 -0.2  0.0
S- 13 -1.5 -2.3 -2.0 -3.0 -3.8 -3.3 -3.4 -3.3 -4.8 -2.1 -2.5 -3.4 -3.8 -3.8 -4.0
S-  9  6.8  7.4  6.1  5.5  3.6  4.6  5.2  5.5  2.8  5.9  5.6  6.5  6.0  5.5  6.2
S- 11  4.1  3.5  3.8  2.7  0.5  1.9  1.5  2.3  0.3  3.0  3.0  3.1  2.0  1.9  1.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.74 1.24 1.27 0.60 0.53-0.22 58.00 56.76 1.24 56.53 56.44 0.09  -1.15
     13 -2.65-2.10-2.43-2.71-2.77-3.50       60.19-2.19       59.67-3.14  -0.95
      9  6.13 7.02 6.26 5.93 5.76 5.51       51.18 6.82       50.97 5.56  -1.26
     11  2.80 3.59 2.70 2.79 2.57 2.18       54.68 3.32       54.16 2.37  -0.95
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.63  1.52                   1.75  1.54 1.14  1.41  1.62 0.87   0.77
     13         1.53                         1.59 1.10        1.57 0.90   0.82
      9         1.68                         1.70 1.02        1.83 0.77   0.75
     11         1.54                         1.66 1.05        1.58 0.90   0.85
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.94(F 10 - 56.44)(0.87) + 56.53      0.93(F 13 - 59.67)(0.90) + 56.53

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11  12    0.892 0.871 0.854 0.843
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 63.3 65.3 66.7 66.8 64.7 62.8 64.2 64.9 65.7 64.0 65.0 66.2 65.6 65.5 62.1
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
S- 13 -2.2 -1.3 -2.3 -3.2 -3.4 -3.7 -2.4 -2.9 -4.2 -1.2 -2.5 -2.2 -2.6 -2.5 -1.8
S- 10  0.1  0.8 -0.1  0.1 -0.7 -1.0 -0.4 -0.1 -2.2  1.3 -0.4 -0.2  0.6  0.2  0.3
S- 11  3.3  3.9  3.5  2.6  1.4  1.4  3.7  2.8  0.7  3.9  3.1  3.4  3.2  3.0  3.5
S- 12 -3.8 -3.4 -4.1 -4.2 -4.4 -5.0 -4.7 -4.9 -6.2 -2.9 -3.9 -3.7 -4.6 -4.3 -4.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -2.34-1.93-2.16-2.63-2.61-2.42 66.62 68.64-2.02 64.85 67.41-2.56  -0.54
     10  0.43 1.07 0.87 0.09 0.01-0.05       65.60 1.02       64.96-0.11  -1.13
     11  3.00 3.65 2.77 2.76 2.86 2.96       63.26 3.36       61.96 2.89  -0.47
     12 -3.81-3.00-3.45-4.27-4.20-4.26       69.77-3.15       69.13-4.28  -1.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.57  1.50                   1.59  1.36 1.17  1.32  1.66 0.80   0.68
     10         1.42                         1.39 1.14        1.58 0.84   0.73
     11         1.51                         1.45 1.10        1.64 0.81   0.73
     12         1.33                         1.16 1.37        1.56 0.85   0.62
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.94(F 13 - 67.41)(0.80) + 64.85      0.93(F 10 - 64.96)(0.84) + 64.85

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  10  12    0.880 0.862 0.861 0.818
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.0 71.6 71.2 74.1 73.4 69.2 71.7 72.1 73.1 71.0 73.4 72.2 72.9 71.8 70.2
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
S- 13 -2.6 -1.5 -2.7 -2.7 -2.4 -3.7 -1.2 -2.5 -2.8 -1.1 -2.7 -1.3 -1.4 -2.9 -1.3
S- 11  2.9  3.9  2.6  3.3  2.3  1.2  4.5  3.5  2.1  4.2  3.1  4.2  4.2  2.6  3.7
S- 10 -0.3  0.2 -0.6  0.1 -0.5 -2.1 -0.1 -0.1 -1.7  1.0 -0.4 -0.1  0.7  0.1  0.5
S- 12 -3.7 -3.2 -4.5 -3.5 -3.0 -5.0 -3.6 -4.2 -4.4 -3.1 -3.7 -2.9 -2.9 -4.3 -3.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -2.04-1.67-1.65-2.49-2.43-1.93 73.00 74.61-1.61 71.93 74.11-2.19  -0.57
     11  3.19 3.64 3.34 2.67 2.94 3.47       69.39 3.60       68.69 3.24  -0.36
     10  0.13 0.86 0.52-0.42-0.36 0.02       72.15 0.85       72.15-0.22  -1.07
     12 -3.25-2.41-2.74-3.87-3.80-3.47       75.47-2.47       75.59-3.66  -1.19
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.52  1.48                   1.41  1.32 1.07  1.29  1.49 0.86   0.81
     11         1.47                         1.43 0.99        1.45 0.89   0.90
     10         1.30                         1.15 1.22        1.40 0.92   0.75
     12         1.23                         1.04 1.36        1.25 1.03   0.76
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.94(F 13 - 74.11)(0.86) + 71.93      0.93(F 11 - 68.69)(0.89) + 71.93

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  10  50    0.805 0.799 0.778 0.748
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.7 74.9 73.3 77.0 77.1 73.6 75.8 75.3 75.3 74.7 76.7 75.5 77.2 74.6 74.2
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 50 76.7 74.9 75.1 76.9 77.5 77.2 74.6 75.7 76.3 73.1 77.3 75.2 76.5 74.8 74.2
S- 11  2.9  3.2  2.2  3.4  3.4  1.1  4.2  3.2  2.7  4.5  2.8  3.5  4.2  3.1  3.5
S- 13 -2.3 -1.6 -2.9 -2.3 -2.0 -3.8 -1.0 -2.8 -2.2 -1.1 -2.6 -1.5 -0.6 -2.2 -1.4
S- 10 -0.4 -0.2 -1.1  0.3 -0.5 -2.4 -0.2 -0.4 -1.4  0.7 -0.5 -0.7  0.7 -0.2  0.2
S- 50 -1.0  0.0 -1.8  0.0 -0.4 -3.5  1.1 -0.4 -1.0  1.5 -0.6  0.3  0.8 -0.2  0.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  3.32 3.89 3.76 2.80 2.72 3.46 76.32 72.39 3.93 75.40 72.21 3.19  -0.74
     13 -1.77-1.26-1.19-2.24-2.45-1.66       77.48-1.16       77.42-2.02  -0.86
     10 -0.02 0.92 0.40-0.67-0.61-0.18       75.44 0.88       75.81-0.40  -1.28
     50 -0.27 0.04 0.26-0.87-0.79 0.11       76.17 0.15       75.74-0.34  -0.49
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.38  1.21                   1.11  1.17 0.94  1.18  1.06 1.11   1.18
     13         1.24                         1.16 0.95        1.16 1.02   1.07
     10         1.07                         0.93 1.19        1.08 1.09   0.92
     50         1.51                         1.63 0.68        1.25 0.94   1.38
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.90(F 11 - 72.21)(1.11) + 75.40      0.89(F 13 - 77.42)(1.02) + 75.40

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  11  38    0.854 0.840 0.818 0.790
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.2 72.0 71.9 75.4 75.7 72.8 74.4 74.0 74.7 74.0 75.9 72.4 75.7 72.7 73.3
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
S- 10 -0.2 -0.5 -1.6  0.5 -0.6 -1.8  0.4 -0.3 -0.7  0.2 -0.4 -1.2  0.6 -0.4 -0.2
S- 13 -2.0 -2.1 -2.7 -1.8 -2.0 -3.3 -0.5 -2.9 -1.5 -1.4 -2.4 -2.0 -0.8 -2.4 -2.1
S- 11  3.3  2.9  2.2  3.2  3.7  1.4  4.2  2.9  3.2  3.9  3.1  3.0  3.9  3.0  3.1
S- 38  0.9  1.7  0.9  2.4  2.9 -0.6  3.1  2.5  2.3  4.2  3.1  2.1  2.4  2.3  2.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.04 0.82 0.44-0.66-0.58-0.31 75.16 74.33 0.83 74.02 74.43-0.41  -1.24
     13 -1.70-1.14-1.18-2.12-2.29-1.80       76.22-1.06       76.00-1.99  -0.92
     11  3.30 3.78 3.80 2.86 2.74 3.32       71.32 3.84       70.88 3.14  -0.70
     38  2.26 2.59 2.74 1.79 1.61 2.71       72.45 2.72       71.83 2.19  -0.53
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.57  1.24                   1.21  1.12 1.09  1.36  1.08 1.26   1.16
     13         1.32                         1.12 1.08        1.23 1.10   1.02
     11         1.34                         1.14 1.06        1.11 1.22   1.15
     38         1.54                         1.41 0.86        1.33 1.02   1.19
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.92(F 10 - 74.43)(1.26) + 74.02      0.92(F 13 - 76.00)(1.10) + 74.02

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   7  11    0.913 0.899 0.878 0.868
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.3 69.0 67.9 69.2 66.2 65.8 68.5 67.9 67.4 66.0 67.8 64.6 69.5 66.9 66.6
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
S- 10  0.3 -0.3 -0.9  0.6 -1.0 -0.4  0.4 -0.7 -1.0 -0.2 -0.8 -1.7  0.4 -0.4 -0.4
S- 13 -1.4 -2.1 -2.4 -1.3 -2.7 -2.4 -0.8 -3.2 -2.2 -1.9 -2.7 -3.2 -1.1 -1.8 -2.4
S-  7  2.9  2.7  1.9  4.1  2.5  2.2  3.1  2.3  1.7  3.5  2.9  1.3  2.7  2.2  2.3
S- 11  3.6  2.8  2.3  3.4  2.7  2.7  4.3  2.6  2.2  2.9  2.8  1.2  4.0  2.8  2.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.08 0.58 0.18-0.44-0.28-0.59 68.70 68.22 0.48 67.51 67.92-0.40  -0.88
     13 -1.85-1.48-1.54-1.99-2.15-2.19       70.25-1.55       69.62-2.11  -0.56
      7  2.82 3.52 2.77 2.68 2.60 2.38       65.38 3.32       64.95 2.57  -0.75
     11  3.09 3.42 3.38 3.00 2.84 2.67       65.38 3.32       64.65 2.86  -0.45
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.68  1.42                   1.50  1.31 1.14  1.42  1.07 1.33   1.17
     13         1.44                         1.41 1.06        1.10 1.29   1.22
      7         1.41                         1.37 1.09        1.22 1.17   1.07
     11         1.43                         1.27 1.18        1.04 1.37   1.16
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 67.92)(1.33) + 67.51      0.95(F 13 - 69.62)(1.29) + 67.51

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9   7    0.931 0.926 0.900 0.890
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 60.3 59.2 63.7 61.7 57.3 56.4 60.0 60.0 58.8 58.4 58.8 58.0 57.8 56.8 57.2
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
S- 10  0.9 -0.4  0.6  1.0 -1.1  0.0  0.4 -0.8 -0.4 -0.2 -1.3 -1.5 -0.4 -0.4 -0.8
S- 13 -0.6 -2.4 -1.3 -1.4 -2.5 -2.4 -1.1 -2.9 -1.6 -1.9 -2.7 -2.9 -1.9 -2.1 -2.4
S-  9  6.7  5.2  6.1  6.8  4.6  5.3  6.6  4.8  5.3  5.4  5.1  3.8  5.8  5.7  5.7
S-  7  3.9  3.1  5.1  5.9  2.6  3.0  4.2  2.7  3.1  4.2  3.6  1.8  2.6  2.9  2.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.02 0.55 0.18-0.23 0.09-0.72 59.66 59.27 0.39 58.96 59.25-0.30  -0.69
     13 -1.84-1.51-1.72-2.05-1.83-2.21       61.38-1.72       60.96-2.00  -0.28
      9  5.73 6.31 5.62 5.62 5.70 5.26       53.73 5.93       53.41 5.54  -0.39
      7  3.53 3.97 3.37 3.48 3.68 2.99       55.94 3.72       55.53 3.43  -0.29
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.70  1.52                   0.94  0.78 1.20  1.89  1.55 1.22   1.01
     13         1.52                         0.79 1.19        1.60 1.18   0.99
      9         1.66                         0.90 1.04        1.63 1.15   1.10
      7         1.45                         1.11 0.85        1.28 1.48   1.74
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 59.25)(1.22) + 58.96      0.96(F 13 - 60.96)(1.18) + 58.96

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11  12    0.947 0.937 0.933 0.915
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 49.9 53.4 54.2 51.8 48.5 47.5 46.4 51.4 50.4 48.7 47.6 51.4 46.5 48.7 47.9
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8
S- 13 -0.8 -2.1 -0.6 -1.5 -2.2 -2.1 -2.9 -3.3 -2.0 -1.9 -3.2 -2.1 -3.1 -1.8 -2.0
S- 10  1.2  0.1  1.7  0.8 -0.5  0.5 -0.1 -1.7 -0.3 -0.3 -1.8 -0.6 -1.0  0.0 -0.6
S- 11  4.6  3.0  4.9  3.2  2.5  3.6  3.6  2.3  3.2  3.4  2.0  2.5  2.7  2.8  3.2
S- 12 -4.5 -4.4 -4.6 -5.6 -5.6 -5.3 -6.2 -7.0 -4.9 -5.9 -7.1 -5.7 -6.6 -5.5 -5.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -1.97-1.78-2.07-1.94-1.87-2.29 49.64 51.66-2.02 49.64 51.75-2.11  -0.09
     10  0.13 0.56 0.17 0.01 0.34-0.68       49.29 0.35       49.82-0.18  -0.53
     11  3.38 3.74 3.29 3.41 3.46 2.84       46.20 3.44       46.46 3.18  -0.27
     12 -5.07-4.52-4.90-5.03-5.22-5.94       54.38-4.74       55.30-5.66  -0.92
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.06  1.84                   1.59  1.31 1.21  2.34  2.05 1.14   0.94
     10         1.96                         1.43 1.12        2.11 1.11   0.99
     11         2.00                         1.44 1.10        2.26 1.04   0.94
     12         1.96                         1.49 1.07        2.02 1.16   1.09
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.97(F 13 - 51.75)(1.14) + 49.64      0.97(F 10 - 49.82)(1.11) + 49.64

Station#1866  LAWRENCEVILLE/3 E   , va  4476802    lat/lon 77.85   36.77    11M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10  11   9    0.945 0.941 0.918 0.912
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.4 42.8 45.7 43.2 42.1 44.0 41.7 44.1 45.3 43.7 39.7 46.4 38.2 41.7 41.4
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
S- 13 -1.8 -2.2 -0.8 -2.2 -2.3 -2.3 -3.2 -3.9 -1.1 -2.4 -3.5 -1.4 -3.6 -2.9 -3.4
S- 10  1.3  0.2  1.5  0.7  0.1  0.6 -0.1 -1.9  0.8 -0.5 -1.5  0.0 -1.0 -0.1 -2.1
S- 11  4.1  4.0  5.5  2.3  2.6  2.9  3.5  1.1  4.5  2.4  2.2  3.6  1.7  2.4  1.7
S-  9  8.2  7.0  9.0  7.3  5.7  6.0  7.3  4.6  8.2  5.7  6.0  6.5  5.6  6.5  4.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -2.25-2.15-2.16-2.23-2.22-2.62 42.87 45.11-2.24 42.76 45.23-2.47  -0.23
     10  0.37 0.91 0.60 0.28 0.39-0.64       42.12 0.75       42.90-0.14  -0.89
     11  3.37 3.77 3.41 3.56 3.27 2.64       39.26 3.61       39.78 2.97  -0.64
      9  7.08 7.60 7.32 7.22 6.87 6.09       35.43 7.44       36.24 6.51  -0.93
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.36  2.24                   1.92  1.95 0.99  2.16  1.65 1.31   1.32
     10         2.36                         1.90 1.01        1.95 1.11   1.09
     11         2.43                         2.14 0.90        1.87 1.16   1.29
      9         2.64                         2.20 0.88        2.10 1.03   1.17
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.97(F 13 - 45.23)(1.31) + 42.76      0.97(F 10 - 42.90)(1.11) + 42.76

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 38.52 41.35 46.54 54.32 62.85 69.74 73.15 72.11 67.36 57.07 47.41 41.29
1952 41.16 43.40 48.13 55.45 65.38 72.25 75.30 72.28 64.32 55.66 46.65 42.58
1953 41.13 44.33 49.02 57.65 65.75 72.42 74.21 72.63 67.32 57.84 48.23 40.90
1954 40.12 42.69 50.44 55.86 64.20 68.83 73.40 72.87 67.33 56.97 45.88 38.16
1955 36.96 41.31 49.56 58.39 64.50 70.98 74.12 74.46 66.98 56.40 44.77 37.37
1956 36.69 40.74 47.21 54.73 63.35 70.59 73.61 71.74 65.94 56.57 50.66 42.81
1957 41.96 41.15 49.41 57.03 66.28 71.37 73.61 72.45 65.00 56.68 47.26 40.73
1958 35.62 35.94 43.77 53.84 63.29 70.01 73.59 72.52 65.69 57.46 46.22 39.23
1959 36.55 40.50 47.95 56.85 65.92 72.03 75.14 74.21 68.49 57.97 48.21 41.07
1960 38.07 36.03 43.16 51.64 64.31 69.37 74.17 73.60 68.27 58.55 45.47 36.04
1961 33.54 40.11 47.01 53.58 60.25 68.00 72.87 73.11 67.48 58.92 47.42 39.93
1962 36.79 39.20 45.21 54.70 64.13 70.65 72.24 70.02 65.23 55.79 45.03 35.85
1963 31.59 37.48 46.42 56.71 64.17 69.71 72.78 70.75 65.26 57.04 44.76 37.30
1964 32.82 38.65 45.71 55.94 65.02 71.14 73.67 71.38 63.62 55.54 46.95 41.50
1965 37.69 38.74 45.72 56.23 65.06 70.85 72.54 72.26 65.48 56.47 46.90 38.85
1966 34.79 36.92 44.37 54.36 62.64 70.72 73.49 71.49 64.04 54.94 45.08 39.83
1967 35.73 39.92 46.55 55.02 62.82 67.84 71.99 69.29 62.76 52.73 45.14 37.04
1968 33.51 36.20 45.18 55.17 63.19 69.56 74.19 72.40 66.29 56.97 46.51 38.06
1969 34.52 36.65 44.89 54.08 64.44 70.74 73.33 71.29 64.30 54.58 43.86 35.02
1970 32.62 35.77 45.11 55.15 64.85 71.30 73.73 73.67 68.15 58.81 47.69 38.31
1971 35.45 36.75 44.09 51.91 61.97 68.68 72.47 71.68 68.01 58.88 50.66 42.32
1972 39.24 39.49 45.08 54.18 61.26 67.62 70.88 71.35 64.87 55.53 47.01 40.76
1973 38.04 40.83 47.04 55.12 62.60 69.52 74.18 73.10 67.62 58.77 47.68 43.07
1974 39.96 44.58 48.59 56.90 62.77 68.56 71.43 70.51 63.60 54.47 45.44 40.18
1975 38.36 40.01 44.86 53.75 63.21 70.26 73.25 71.43 66.58 57.59 47.96 39.04
1976 37.73 42.34 50.07 55.56 62.14 68.19 71.69 70.11 62.63 51.64 40.93 31.44
1977 30.28 36.65 48.31 58.15 64.09 70.68 73.76 73.57 65.42 56.25 45.09 36.41
1978 29.98 32.71 42.50 53.66 63.18 69.28 73.87 73.52 66.70 57.30 46.87 39.77
1979 33.86 36.92 44.55 55.76 62.91 68.87 72.44 71.68 65.49 57.21 48.13 41.72
1980 36.60 37.98 44.73 54.88 63.92 71.14 75.29 75.68 68.34 57.52 46.27 37.91
1981 36.14 37.83 47.60 55.21 65.80 70.98 74.63 72.16 65.20 56.12 45.13 36.67
1982 34.44 38.67 46.57 55.78 63.76 71.33 73.00 71.84 66.15 58.11 50.14 41.83
1983 37.74 38.97 45.01 53.09 60.72 68.34 73.31 72.04 65.71 55.91 45.50 37.22
1984 35.71 38.38 45.52 52.09 62.22 68.61 72.57 69.62 66.52 56.54 50.32 39.65
1985 37.59 38.63 48.16 57.28 64.31 68.82 71.04 70.02 65.31 59.51 49.38 41.02
1986 35.96 39.61 47.51 55.66 64.54 71.35 74.09 72.59 66.03 57.52 47.40 38.83
1987 35.27 38.52 45.34 55.60 64.38 72.50 75.76 74.00 65.16 55.65 46.62 39.24
1988 35.48 37.37 46.11 54.80 62.75 69.51 73.82 72.28 63.57 53.42 44.14 40.85
1989 38.73 41.91 46.59 54.05 62.84 69.84 73.45 71.44 65.05 55.97 42.57 38.09
1990 37.98 46.11 50.35 56.18 62.84 69.43 72.98 71.69 65.94 57.45 49.23 42.68
1991 40.54 42.77 49.21 58.13 66.04 72.15 73.53 72.04 65.50 55.94 47.05 40.70
1992 39.47 41.00 46.75 53.30 60.77 67.54 71.04 70.94 63.85 55.73 46.13 41.09
1993 37.54 38.96 44.21 53.72 63.09 70.79 74.32 73.39 65.49 55.85 44.91 37.02
1994 34.07 38.05 47.94 54.91 63.53 68.36 72.59 69.82 62.78 55.15 47.38 41.67
1995 37.40 39.66 46.03 54.85 62.29 68.71 72.88 71.56 65.46 54.39 43.99 35.69
1996 33.71 36.19 44.28 53.49 63.83 69.73 72.70 70.37 64.30 53.51 44.77 37.84
1997 38.23 41.72 47.27 53.33 59.92 68.30 72.61 71.68 64.43 54.48 45.01 38.12

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  38  13    0.962 0.952 0.948 0.947
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 37.7 35.7 37.6 36.0 35.3 35.5 38.7 38.0 40.5 39.5 37.5 34.1 37.4 33.7 38.2
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S-  9  2.5  4.3  4.7  4.4  2.9  3.3  4.2  4.3  4.2  3.7  3.7  3.8  3.2  3.1  2.8
S- 10 -2.9 -2.8 -2.7 -3.0 -3.1 -2.7 -1.9 -2.9 -2.9 -3.3 -2.8 -3.5 -4.1 -3.5 -3.6
S- 38 -0.3  3.2  4.0  2.5  0.2  1.5  2.1  2.1  2.9  1.3  2.0  2.0  1.2  1.2  0.9
S- 13 -5.5 -6.0 -5.9 -6.6 -6.2 -5.4 -5.5 -6.6 -5.3 -6.5 -5.4 -7.0 -6.3 -7.2 -6.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.11 4.91 3.97 3.89 4.12 3.50 37.28 32.62 4.66 37.03 33.35 3.68  -0.98
     10 -2.77-1.69-3.08-3.35-2.54-3.37       39.40-2.11       40.07-3.05  -0.93
     38  2.11 2.60 1.92 2.14 2.12 1.64       34.82 2.46       35.24 1.79  -0.67
     13 -6.09-5.25-6.50-6.61-5.85-6.30       42.99-5.71       43.16-6.13  -0.43
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.73  2.89                   2.97  2.99 0.99  1.88  1.85 1.02   1.02
     10         2.48                         2.49 1.19        1.82 1.03   0.86
     38         3.07                         3.13 0.95        2.04 0.92   0.97
     13         2.54                         2.78 1.07        1.66 1.13   1.06
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.98(F  9 - 33.35)(1.02) + 37.03      0.98(F 10 - 40.07)(1.03) + 37.03

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  38    0.966 0.962 0.961 0.954
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.0 38.4 38.6 39.6 38.5 37.4 41.9 46.1 42.8 41.0 39.0 38.0 39.7 36.2 41.7
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10 -2.8 -2.3 -2.3 -2.9 -1.7 -2.5 -1.6 -2.1 -2.2 -2.7 -2.6 -2.7 -3.3 -3.2 -2.5
S-  9  2.9  4.5  5.2  3.8  3.2  3.4  3.7  4.1  4.8  4.0  3.7  4.9  3.6  3.4  3.8
S- 13 -5.4 -6.7 -6.0 -7.1 -5.4 -5.7 -5.8 -5.3 -5.2 -6.2 -5.8 -7.3 -6.3 -7.2 -7.2
S- 38  0.2  2.5  3.8  1.0 -0.2  1.5  1.5  1.9  2.8  1.3  1.8  3.1  1.4  1.4  1.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.25-1.58-2.41-2.59-2.09-2.74 40.11 41.89-1.78 39.86 42.35-2.49  -0.71
      9  4.39 5.11 4.24 4.33 4.14 4.03       35.21 4.90       35.92 3.94  -0.96
     13 -6.05-5.47-6.15-6.42-5.88-6.46       45.76-5.66       46.03-6.17  -0.52
     38  2.11 2.58 2.00 2.25 1.72 1.96       37.64 2.47       38.13 1.72  -0.75
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.64  2.45                   2.39  2.14 1.12  2.40  2.25 1.07   0.96
      9         2.79                         2.46 0.97        2.36 1.02   1.05
     13         2.57                         2.47 0.97        2.21 1.09   1.13
     38         3.03                         2.71 0.88        2.54 0.95   1.07
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.35)(1.07) + 39.86      0.98(F  9 - 35.92)(1.02) + 39.86

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  38    0.964 0.945 0.943 0.919
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.0 45.5 48.2 47.5 45.3 46.1 46.6 50.3 49.2 46.8 44.2 47.9 46.0 44.3 47.3
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
S- 10 -2.3 -2.1 -2.2 -2.0 -1.0 -1.4 -1.4 -2.0 -2.0 -2.4 -2.0 -2.3 -2.6 -2.1 -2.1
S-  9  3.1  4.1  4.5  3.4  3.5  4.2  4.4  4.2  4.0  3.6  4.3  4.4  3.8  4.4  3.9
S- 13 -5.1 -5.8 -5.6 -6.7 -4.6 -5.0 -5.7 -5.1 -5.6 -5.8 -4.8 -6.0 -6.5 -5.8 -6.4
S- 38  0.5  1.5  2.3  0.6 -0.2  2.3  1.8  2.0  1.3  0.6  2.2  2.4  0.9  2.7  1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.71-1.35-1.56-1.94-1.65-2.20 47.02 48.40-1.38 46.69 48.67-1.99  -0.61
      9  4.35 4.99 4.23 4.23 4.16 4.07       42.19 4.83       42.70 3.99  -0.84
     13 -5.48-4.97-5.59-5.74-5.39-5.85       52.13-5.11       52.32-5.63  -0.52
     38  1.72 2.36 1.46 1.56 1.54 1.65       44.93 2.09       45.19 1.49  -0.60
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.94  1.97                   2.04  1.95 1.05  1.70  1.80 0.95   0.90
      9         2.04                         2.10 0.97        1.69 1.01   1.03
     13         1.96                         2.04 1.00        1.92 0.89   0.88
     38         2.21                         2.29 0.89        1.81 0.94   1.05
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 48.67)(0.95) + 46.69      0.97(F  9 - 42.70)(1.01) + 46.69

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  13  10  38    0.946 0.932 0.932 0.930
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.1 52.1 57.3 55.7 55.6 54.8 54.0 56.2 58.1 53.3 53.7 54.9 54.8 53.5 53.3
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
S-  9  3.3  3.8  3.6  3.0  3.6  3.8  4.0  4.0  3.0  3.3  3.9  4.4  3.2  4.3  4.5
S- 13 -5.0 -5.9 -4.5 -5.5 -3.8 -4.2 -4.5 -4.8 -4.7 -4.7 -4.2 -5.5 -6.6 -5.0 -5.7
S- 10 -2.4 -2.2 -1.9 -2.0 -0.4 -0.9 -1.2 -1.7 -1.8 -1.8 -1.9 -2.3 -2.5 -1.4 -1.7
S- 38  1.0  1.7  0.8  0.3  0.1  1.6  1.1  2.0  0.1  0.5  1.9  2.2  0.5  2.0  2.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.00 4.44 4.02 3.82 3.84 3.82 55.53 51.18 4.34 54.70 50.97 3.73  -0.61
     13 -4.79-4.69-4.68-4.82-4.69-5.20       60.19-4.66       59.67-4.97  -0.30
     10 -1.40-1.34-0.98-1.52-1.39-1.92       56.76-1.24       56.44-1.74  -0.50
     38  1.28 1.66 1.15 1.15 1.16 1.32       54.02 1.50       53.51 1.19  -0.32
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.58  1.68                   1.70  1.70 1.00  1.60  1.83 0.87   0.88
     13         1.53                         1.59 1.07        1.57 1.02   0.96
     10         1.52                         1.54 1.11        1.62 0.99   0.89
     38         1.82                         1.74 0.98        2.05 0.78   0.80
Suggested regression eqns from two most closely related CDs (  9 and  13): 
          0.97(F  9 - 50.97)(0.87) + 54.70      0.97(F 13 - 59.67)(1.02) + 54.70

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13   9  38    0.944 0.932 0.921 0.908
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 60.7 62.2 64.3 64.5 64.4 62.8 62.8 62.8 66.0 60.8 63.1 63.5 62.3 63.8 59.9
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
S- 11  0.8  0.8  1.2  0.3  1.0  1.4  2.3  0.7  1.0  0.6  1.2  0.8 -0.1  1.3  1.3
S- 13 -4.7 -4.4 -4.7 -5.4 -3.7 -3.8 -3.8 -5.0 -3.9 -4.4 -4.4 -4.8 -5.8 -4.2 -4.0
S-  9  2.8  2.7  3.1  2.8  3.3  3.4  4.4  3.5  2.3  2.8  3.1  2.9  2.5  3.6  3.8
S- 38  0.5  0.4  0.4 -0.1  0.0  0.6  2.0  1.2 -0.7  0.3  1.4  0.6 -0.2  1.4  1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  1.04 1.07 1.01 1.06 1.15 0.88 64.30 63.26 1.03 62.94 61.96 0.97  -0.06
     13 -4.30-4.52-3.91-4.32-4.32-4.50       68.64-4.34       67.41-4.47  -0.13
      9  3.49 3.71 3.65 3.43 3.51 3.00       60.56 3.73       59.81 3.13  -0.60
     38  0.74 0.77 0.75 0.66 0.89 0.61       63.55 0.75       62.31 0.62  -0.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.49  1.51                   1.45  1.45 1.00  1.57  1.64 0.96   0.95
     13         1.50                         1.36 1.07        1.66 0.95   0.89
      9         1.51                         1.56 0.93        1.75 0.90   0.97
     38         1.68                         1.64 0.88        1.97 0.80   0.90
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.97(F 11 - 61.96)(0.96) + 62.94      0.97(F 13 - 67.41)(0.95) + 62.94

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11   9  38  10    0.892 0.882 0.870 0.839
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.3 68.6 68.8 71.3 72.5 69.5 69.8 69.4 72.2 67.5 70.8 68.4 68.7 69.7 68.3
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
S- 11  0.2  0.9  0.3  0.5  1.4  1.6  2.6  0.8  1.2  0.7  0.5  0.4  0.0  0.6  1.9
S-  9  2.2  2.5  2.2  2.8  2.9  2.3  3.5  3.1  1.7  2.4  2.5  1.7  1.5  3.2  3.8
S- 38 -0.8  0.1 -0.4 -0.4  0.2 -0.5  1.7  0.7 -0.9  0.3  0.4 -0.6 -1.0  0.3  1.2
S- 10 -3.0 -2.8 -3.0 -2.6 -1.5 -1.8 -2.0 -2.7 -2.6 -2.5 -3.0 -3.9 -3.5 -1.9 -1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  1.20 0.99 1.58 1.39 1.15 0.74 70.53 69.39 1.13 69.60 68.69 0.91  -0.23
      9  3.03 3.18 3.30 3.09 2.96 2.42       67.31 3.22       67.04 2.56  -0.66
     38  0.27 0.06 0.62 0.29 0.33-0.04       70.33 0.20       69.57 0.03  -0.17
     10 -1.86-1.78-1.23-1.70-2.15-2.70       72.15-1.62       72.15-2.55  -0.93
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.36  1.47                   1.22  1.43 0.85  1.44  1.45 0.99   1.16
      9         1.42                         1.45 0.84        1.53 0.94   1.12
     38         1.56                         1.61 0.76        1.65 0.87   1.15
     10         1.30                         1.15 1.06        1.40 1.03   0.97
Suggested regression eqns from two most closely related CDs ( 11 and   9): 
          0.94(F 11 - 68.69)(0.99) + 69.60      0.94(F  9 - 67.04)(0.94) + 69.60

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  10   9  38    0.805 0.801 0.761 0.749
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.3 72.6 71.0 74.1 75.8 73.8 73.4 73.0 73.5 71.0 74.3 72.6 72.9 72.7 72.6
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
S- 11  0.5  0.8 -0.1  0.5  2.1  1.2  1.9  0.9  0.9  0.9  0.4  0.5 -0.2  1.2  1.9
S- 10 -2.8 -2.6 -3.3 -2.6 -1.8 -2.2 -2.5 -2.8 -3.2 -3.0 -2.9 -3.7 -3.6 -2.1 -1.4
S-  9  1.9  2.1  1.9  3.1  3.0  1.7  2.7  2.7  1.6  2.5  2.2  1.4  0.5  2.9  3.4
S- 38 -1.9 -0.7 -0.9  0.0  1.0 -1.0  0.6  0.4 -0.9  0.7  0.0 -0.8 -2.4  0.3  0.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  1.25 1.03 1.73 1.48 1.07 0.81 73.63 72.39 1.24 73.11 72.21 0.90  -0.34
     10 -2.09-1.94-1.63-1.99-2.26-2.83       75.44-1.81       75.81-2.69  -0.88
      9  2.84 3.01 3.14 2.99 2.77 2.07       70.51 3.12       70.87 2.24  -0.87
     38  0.03-0.23 0.50 0.09 0.01-0.33       73.63 0.00       73.43-0.32  -0.32
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.09  1.21                   0.84  1.17 0.72  1.15  1.06 1.08   1.51
     10         1.07                         0.93 0.90        1.08 1.07   1.18
      9         1.17                         1.06 0.79        1.25 0.92   1.16
     38         1.33                         1.30 0.65        1.39 0.83   1.28
Suggested regression eqns from two most closely related CDs ( 11 and  10): 
          0.90(F 11 - 72.21)(1.08) + 73.11      0.89(F 10 - 75.81)(1.07) + 73.11

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11   9  10  38    0.873 0.856 0.854 0.840
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.0 69.6 70.0 72.6 74.0 72.3 71.4 71.7 72.0 70.9 73.4 69.8 71.6 70.4 71.7
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
S- 11  0.2  0.5  0.3  0.4  2.1  0.8  1.3  0.6  0.6  0.8  0.6  0.4 -0.3  0.7  1.5
S-  9  1.9  2.2  1.5  2.8  3.1  1.6  2.4  2.6  1.8  2.6  2.2  1.5  1.2  2.7  3.9
S- 10 -3.3 -3.0 -3.5 -2.3 -2.3 -2.3 -2.6 -2.6 -3.3 -2.9 -3.0 -3.8 -3.6 -2.8 -1.8
S- 38 -2.3 -0.8 -0.9 -0.4  1.2 -1.1  0.1  0.2 -0.4  1.1  0.6 -0.6 -1.7  0.0  1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  1.10 1.03 1.39 1.34 0.98 0.61 72.43 71.32 1.11 71.57 70.88 0.69  -0.42
      9  2.84 3.07 2.98 3.05 2.64 2.27       69.36 3.07       69.30 2.26  -0.80
     10 -2.24-1.93-1.97-2.18-2.33-3.03       74.33-1.91       74.43-2.86  -0.96
     38  0.06-0.16 0.33 0.27-0.15-0.01       72.45-0.02       71.83-0.27  -0.25
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.34  1.34                   1.15  1.14 1.00  1.22  1.11 1.10   1.10
      9         1.38                         1.36 0.85        1.21 1.01   1.20
     10         1.24                         1.12 1.03        1.08 1.13   1.10
     38         1.54                         1.41 0.81        1.33 0.92   1.13
Suggested regression eqns from two most closely related CDs ( 11 and   9): 
          0.93(F 11 - 70.88)(1.10) + 71.57      0.93(F  9 - 69.30)(1.01) + 71.57

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11   9  38  13    0.905 0.885 0.875 0.874
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 65.7 66.5 65.3 66.0 65.2 63.6 65.1 65.9 65.5 63.8 65.5 62.8 65.5 64.3 64.4
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
S- 11  0.0  0.3 -0.3  0.2  1.6  0.5  0.9  0.6  0.3  0.7  0.5 -0.6 -0.1  0.2  0.5
S-  9  2.0  2.2  1.6  2.8  3.3  2.2  2.4  2.8  2.0  2.8  2.2  1.5  1.3  2.2  3.2
S- 38 -1.9 -0.3 -0.8 -0.1  1.2 -0.5  0.3  0.7 -0.3  1.1  1.1 -1.1 -1.0 -0.5  0.5
S- 13 -5.0 -4.5 -5.0 -4.5 -3.8 -4.6 -4.3 -5.2 -4.2 -4.1 -5.0 -5.1 -5.1 -4.4 -4.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  0.82 0.88 0.92 1.08 0.82 0.22 66.25 65.38 0.87 65.01 64.65 0.36  -0.51
      9  2.89 3.23 2.84 3.14 2.83 2.19       63.15 3.10       62.70 2.31  -0.79
     38  0.26 0.22 0.25 0.57 0.19-0.03       66.08 0.18       65.11-0.11  -0.28
     13 -4.12-4.03-4.01-3.90-4.17-4.63       70.25-3.99       69.62-4.62  -0.62
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.52  1.43                   1.41  1.27 1.11  0.99  1.04 0.95   0.86
      9         1.50                         1.33 1.06        1.10 0.90   0.85
     38         1.65                         1.37 1.03        1.31 0.75   0.73
     13         1.44                         1.41 1.00        1.10 0.90   0.90
Suggested regression eqns from two most closely related CDs ( 11 and   9): 
          0.95(F 11 - 64.65)(0.95) + 65.01      0.94(F  9 - 62.70)(0.90) + 65.01

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  13  11  10    0.909 0.908 0.900 0.886
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 55.9 56.5 59.5 57.5 55.7 53.4 56.0 57.5 55.9 55.7 55.8 55.2 54.4 53.5 54.5
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
S-  9  2.3  2.6  2.0  2.7  2.9  2.3  2.6  2.3  2.5  2.8  2.1  1.0  2.4  2.4  3.0
S- 13 -5.0 -5.0 -5.5 -5.5 -4.2 -5.4 -5.1 -5.4 -4.5 -4.5 -5.7 -5.7 -5.3 -5.5 -5.1
S- 11  0.1  0.0 -0.5 -1.1  1.2 -0.2  0.7  0.3  0.0  0.6 -0.1 -1.1  0.3 -0.5  0.3
S- 10 -3.5 -3.0 -3.6 -3.2 -2.8 -3.0 -3.7 -3.3 -3.3 -2.8 -4.3 -4.3 -3.8 -3.8 -3.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.92 3.49 2.81 3.03 2.80 2.31 57.00 53.73 3.26 55.80 53.41 2.39  -0.88
     13 -4.64-4.32-4.53-4.64-4.72-5.17       61.38-4.38       60.96-5.16  -0.77
     11  0.52 0.97 0.58 0.54 0.42-0.07       56.22 0.78       55.81-0.01  -0.79
     10 -2.79-2.27-2.64-2.83-2.80-3.67       59.27-2.28       59.25-3.45  -1.17
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.67  1.66                   0.98  0.90 1.08  1.53  1.63 0.94   0.87
     13         1.52                         0.79 1.23        1.60 0.95   0.78
     11         1.62                         0.81 1.20        1.72 0.89   0.74
     10         1.52                         0.78 1.24        1.55 0.99   0.80
Suggested regression eqns from two most closely related CDs (  9 and  13): 
          0.95(F  9 - 53.41)(0.94) + 55.80      0.95(F 13 - 60.96)(0.95) + 55.80

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  13  11  38    0.943 0.938 0.932 0.931
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.5 50.3 49.4 47.4 46.6 44.1 42.6 49.2 47.0 46.1 44.9 47.4 44.0 44.8 45.0
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S-  9  3.3  2.6  3.5  2.9  3.1  2.9  3.2  2.5  2.6  3.3  2.0  1.0  2.9  2.1  2.8
S- 13 -5.2 -5.2 -5.5 -5.9 -4.2 -5.5 -6.7 -5.5 -5.4 -4.5 -5.8 -6.1 -5.6 -5.7 -4.9
S- 11  0.2 -0.1  0.1 -1.3  0.6  0.2 -0.2  0.1 -0.1  0.8 -0.7 -1.5  0.2 -1.1  0.3
S- 38  1.2  0.9  2.0  1.3  1.2  0.4  1.3  1.0  0.4  1.4  0.8 -1.3  1.4 -0.4  0.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  3.13 3.83 3.02 3.02 3.17 2.40 46.79 43.22 3.57 46.29 43.56 2.73  -0.84
     13 -5.13-4.71-5.26-5.16-5.16-5.44       51.66-4.87       51.75-5.46  -0.58
     11  0.22 0.81 0.09 0.18 0.18-0.31       46.20 0.59       46.46-0.17  -0.76
     38  1.06 1.66 0.93 0.97 1.11 0.42       45.35 1.44       45.48 0.82  -0.62
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.01  2.15                   1.51  1.54 0.98  2.13  2.26 0.94   0.96
     13         1.84                         1.31 1.15        2.05 1.03   0.90
     11         2.00                         1.44 1.05        2.26 0.94   0.90
     38         2.17                         1.48 1.02        2.20 0.96   0.95
Suggested regression eqns from two most closely related CDs (  9 and  13): 
          0.97(F  9 - 43.56)(0.94) + 46.29      0.97(F 13 - 51.75)(1.03) + 46.29

Station#1867  LEXINGTON           , va  4487603    lat/lon 79.43   37.78     1M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13   9  11  10    0.951 0.949 0.945 0.940
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 37.2 39.7 41.0 38.8 39.2 40.8 38.1 42.7 40.7 41.1 37.0 41.7 35.7 37.8 38.1
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
S- 13 -6.0 -5.4 -5.5 -6.6 -5.1 -5.5 -6.8 -5.3 -5.8 -5.0 -6.2 -6.1 -6.1 -6.7 -6.7
S-  9  4.0  3.9  4.3  3.0  2.8  2.8  3.7  3.2  3.5  3.1  3.3  1.8  3.1  2.7  0.8
S- 11 -0.1  0.8  0.9 -2.0 -0.2 -0.3  0.0 -0.4 -0.2 -0.2 -0.5 -1.1 -0.8 -1.4 -1.6
S- 10 -2.9 -2.9 -3.2 -3.6 -2.8 -2.6 -3.6 -3.3 -3.9 -3.2 -4.2 -4.7 -3.5 -3.9 -5.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -5.79-5.37-5.98-5.98-5.61-6.09 39.57 45.11-5.54 39.31 45.23-5.92  -0.38
      9  3.54 4.38 3.50 3.46 3.48 2.62       35.43 4.14       36.24 3.07  -1.07
     11 -0.16 0.55-0.41-0.19-0.12-0.82       39.26 0.32       39.78-0.47  -0.79
     10 -3.17-2.31-3.22-3.47-3.00-4.10       42.12-2.55       42.90-3.58  -1.04
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.40  2.24                   2.17  1.95 1.11  1.92  1.65 1.17   1.05
      9         2.64                         2.20 0.99        2.10 0.92   0.93
     11         2.43                         2.14 1.01        1.87 1.03   1.02
     10         2.36                         1.90 1.14        1.95 0.99   0.86
Suggested regression eqns from two most closely related CDs ( 13 and   9): 
          0.98(F 13 - 45.23)(1.17) + 39.31      0.97(F  9 - 36.24)(0.92) + 39.31

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 37.14 39.44 45.49 54.39 63.94 71.45 74.96 73.34 65.38 53.65 43.97 39.06
1952 38.85 40.23 45.98 53.84 64.99 72.76 76.67 74.08 65.49 56.16 45.93 41.04
1953 39.39 42.67 47.77 56.61 65.52 73.47 75.88 74.29 68.29 58.73 48.91 40.39
1954 38.64 40.42 48.47 54.78 64.61 70.49 74.46 73.00 67.24 57.15 45.62 36.56
1955 33.88 37.48 45.85 55.85 63.74 71.56 75.70 75.24 67.47 56.05 44.16 35.93
1956 34.51 38.37 44.72 52.67 62.46 70.00 73.70 71.62 66.21 57.21 50.14 41.07
1957 38.85 38.93 48.11 56.55 66.29 71.54 74.34 73.10 66.17 57.35 47.18 40.20
1958 34.71 35.06 42.61 53.31 63.09 70.29 73.67 72.98 66.97 58.69 46.29 37.06
1959 33.42 37.94 46.46 56.13 65.83 72.31 75.93 75.71 70.12 59.00 48.25 40.21
1960 37.17 35.03 42.82 51.77 64.72 69.69 74.47 73.28 67.42 57.92 44.70 35.28
1961 31.60 37.71 44.85 52.20 60.60 69.51 75.02 75.48 69.37 60.32 47.54 39.31
1962 34.27 36.86 44.06 55.37 65.27 70.99 73.14 70.79 66.29 56.08 45.20 35.10
1963 30.46 35.49 44.49 55.97 64.43 71.26 74.22 72.21 67.27 58.94 46.78 37.89
1964 33.45 38.60 44.38 54.82 64.87 73.15 75.51 73.13 65.27 57.12 47.37 39.71
1965 35.75 36.63 43.99 54.69 64.73 72.40 74.51 74.46 67.46 57.85 47.02 38.25
1966 34.19 37.07 44.08 53.27 61.88 71.35 76.57 74.65 66.88 56.03 46.02 40.73
1967 36.43 39.13 44.98 53.44 63.05 68.87 73.84 71.21 64.90 55.39 46.76 37.70
1968 33.88 36.80 46.32 55.15 63.08 69.28 74.93 74.26 68.55 58.57 46.93 38.04
1969 34.02 36.11 44.47 54.55 65.45 72.05 74.95 72.89 65.84 55.89 44.74 34.94
1970 32.10 34.30 43.67 53.84 64.49 71.48 74.43 74.29 68.71 59.28 48.12 37.89
1971 34.70 36.12 44.38 52.25 63.29 70.57 74.64 72.72 68.51 59.28 50.66 42.36
1972 38.18 38.48 43.36 53.38 61.44 69.26 72.80 72.79 65.44 56.13 46.76 40.94
1973 37.68 41.33 47.15 55.29 62.88 70.10 75.41 74.57 68.89 59.47 48.44 42.47
1974 38.68 41.91 47.32 55.98 63.42 69.16 73.10 72.38 65.91 57.08 47.56 41.76
1975 38.11 39.54 43.70 53.46 63.08 71.37 74.82 73.16 67.73 58.78 48.58 38.77
1976 36.04 40.15 49.28 55.55 63.96 69.29 73.15 71.10 64.60 54.41 42.82 32.75
1977 31.19 37.40 48.79 58.37 64.97 71.81 74.76 74.99 67.53 58.23 45.63 36.28
1978 29.79 32.64 41.75 53.05 63.50 70.22 75.26 74.68 68.34 58.75 48.29 39.87
1979 32.62 35.74 43.33 55.49 62.54 69.49 73.20 72.29 66.17 58.28 49.47 41.86
1980 36.11 36.83 44.16 55.37 64.58 72.01 75.49 75.74 68.50 57.45 46.24 37.39
1981 35.50 37.89 47.59 55.30 65.16 70.99 74.43 72.39 65.14 57.03 46.05 36.63
1982 33.18 36.92 45.80 55.62 63.81 71.38 72.61 71.54 65.45 57.94 49.86 42.18
1983 38.36 39.77 45.70 53.73 62.36 70.88 76.01 75.06 68.16 58.36 45.92 36.59
1984 34.31 36.46 44.25 51.58 63.35 70.41 74.40 71.85 68.14 58.08 51.26 40.13
1985 37.51 38.20 48.40 57.91 65.52 70.64 73.23 72.75 67.51 60.57 49.21 40.40
1986 33.86 38.05 45.65 56.55 65.85 73.70 75.81 74.33 67.70 58.45 47.68 38.63
1987 35.92 39.13 46.02 55.70 64.85 73.68 77.04 75.32 66.19 57.39 47.81 40.14
1988 35.90 37.60 45.79 55.20 64.58 73.24 77.46 75.26 65.95 56.11 46.01 41.07
1989 37.16 39.50 44.89 53.46 63.54 70.77 74.90 73.18 67.36 57.41 43.24 37.73
1990 37.03 44.78 49.29 55.48 63.19 70.10 73.99 72.36 66.89 59.69 51.28 42.83
1991 39.50 41.67 49.27 58.73 67.18 74.34 76.70 75.08 68.29 57.82 48.84 41.19
1992 39.20 39.98 46.17 52.91 61.46 68.52 72.15 71.15 64.21 56.09 46.37 40.69
1993 36.66 38.00 43.31 53.53 63.95 72.42 76.32 75.16 67.71 57.93 47.09 37.55
1994 33.61 35.69 46.23 53.71 65.92 71.99 76.42 72.77 65.01 58.41 50.12 44.55
1995 38.21 39.69 44.85 54.31 62.52 70.23 75.22 73.89 68.15 56.54 45.37 36.06
1996 34.36 36.76 44.33 52.45 62.30 68.47 72.29 71.32 65.68 55.07 45.90 38.60
1997 39.10 41.44 47.37 53.53 61.07 69.46 72.83 71.22 62.71 52.50 43.14 36.69

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   8   9  10    0.973 0.954 0.945 0.940
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.4 34.3 37.5 33.9 35.9 35.9 37.2 37.0 39.5 39.2 36.7 33.6 38.2 34.4 39.1
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd  8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
S-  7  2.2  1.6  2.7  1.5  2.8  3.1  2.2  2.5  2.1  2.8  2.3  3.2  2.4  3.0  2.4
S-  8  6.7  7.7  9.1  7.4  7.8  8.3  7.5  8.2  7.9  8.1  7.8  9.4  8.5  8.4  7.8
S-  9  3.2  3.0  4.6  2.4  3.5  3.7  2.6  3.3  3.2  3.5  2.8  3.3  4.0  3.7  3.7
S- 10 -2.3 -4.2 -2.8 -5.1 -2.4 -2.2 -3.5 -3.9 -4.0 -3.5 -3.7 -3.9 -3.3 -2.9 -2.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.25 1.90 2.25 2.17 2.44 2.60 35.47 33.45 2.02 36.71 34.28 2.44   0.42
      8  7.98 7.46 7.85 8.29 8.11 8.25       27.83 7.65       28.68 8.03   0.38
      9  3.25 2.88 3.23 3.25 3.49 3.45       32.62 2.85       33.35 3.36   0.51
     10 -3.64-3.72-3.83-3.99-3.17-3.42       39.40-3.92       40.07-3.36   0.56
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.52  2.52                   2.68  2.68 1.00  1.93  2.00 0.96   0.97
      8         2.85                         2.97 0.90        2.18 0.89   0.98
      9         2.89                         2.99 0.90        1.85 1.04   1.16
     10         2.48                         2.49 1.08        1.82 1.06   0.99
Suggested regression eqns from two most closely related CDs (  7 and   8): 
          0.99(F  7 - 34.28)(0.96) + 36.71      0.98(F  8 - 28.68)(0.89) + 36.71

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   8   9   6    0.966 0.951 0.929 0.925
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.8 36.5 38.2 38.0 39.1 37.6 39.5 44.8 41.7 40.0 38.0 35.7 39.7 36.8 41.4
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd  8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd  6 34.8 29.6 29.6 33.2 34.1 30.6 34.4 38.9 35.0 34.5 31.7 28.4 32.4 29.1 34.0
S-  7  2.7  2.2  2.6  1.8  3.5  2.9  2.1  2.7  2.7  2.9  3.0  3.5  2.2  3.1  3.0
S-  8  7.4  8.4  9.1  7.4  8.3  8.6  7.2  8.1  8.3  8.3  8.2  9.7  8.1  8.6  8.8
S-  9  3.7  2.6  4.8  2.2  3.8  3.6  1.3  2.8  3.7  3.0  2.8  2.5  3.7  3.9  3.5
S-  6  5.0  6.9  8.6  4.8  5.0  7.0  5.1  5.9  6.7  5.5  6.3  7.3  7.3  7.6  7.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.62 2.09 2.63 2.77 2.78 2.92 38.06 35.81 2.25 39.11 36.37 2.74   0.49
      8  8.33 7.66 8.25 8.81 8.39 8.60       30.17 7.89       30.80 8.31   0.42
      9  3.25 2.92 3.14 3.51 3.37 3.30       35.21 2.85       35.92 3.19   0.35
      6  6.69 6.02 6.55 7.63 6.43 6.87       31.89 6.17       32.68 6.43   0.26
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.31  2.26                   2.05  1.94 1.06  2.24  2.33 0.96   0.91
      8         2.54                         2.13 0.96        2.53 0.89   0.92
      9         2.79                         2.46 0.84        2.36 0.95   1.13
      6         3.04                         2.41 0.85        2.77 0.81   0.95
Suggested regression eqns from two most closely related CDs (  7 and   8): 
          0.98(F  7 - 36.37)(0.96) + 39.11      0.98(F  8 - 30.80)(0.89) + 39.11

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   8  10   9    0.959 0.917 0.888 0.885
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.7 44.3 48.4 45.7 46.0 45.8 44.9 49.3 49.3 46.2 43.3 46.2 44.8 44.3 47.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd  8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
S-  7  2.9  2.2  3.2  2.5  3.4  3.2  2.6  2.8  3.3  3.5  3.2  3.2  2.3  3.1  2.9
S-  8  7.5  7.8  9.1  7.0  7.2  8.7  8.2  7.9  8.2  8.2  8.0  9.4  8.2  8.5  8.3
S- 10 -1.6 -3.4 -2.0 -3.9 -0.3 -1.7 -3.1 -3.0 -2.0 -2.9 -2.9 -4.0 -3.7 -2.0 -2.0
S-  9  3.8  2.8  4.8  1.5  4.1  3.9  2.7  3.1  4.1  3.0  3.4  2.7  2.7  4.5  4.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.89 2.42 3.02 2.99 3.03 3.07 45.34 42.80 2.54 46.10 43.14 2.96   0.43
      8  8.16 7.59 8.05 8.62 8.22 8.41       37.55 7.79       37.97 8.13   0.34
     10 -2.65-3.04-2.65-2.60-2.19-2.79       48.40-3.06       48.67-2.57   0.49
      9  3.41 3.30 3.14 3.57 3.62 3.47       42.19 3.15       42.70 3.40   0.25
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.89  1.89                   1.73  1.67 1.04  1.73  1.66 1.04   1.01
      8         2.04                         1.85 0.94        1.74 1.00   1.07
     10         1.97                         1.95 0.89        1.80 0.96   1.09
      9         2.04                         2.10 0.82        1.69 1.03   1.25
Suggested regression eqns from two most closely related CDs (  7 and   8): 
          0.98(F  7 - 43.14)(1.04) + 46.10      0.96(F  8 - 37.97)(1.00) + 46.10

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   8   9   6    0.949 0.922 0.906 0.904
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.7 51.6 57.9 56.5 55.7 55.2 53.5 55.5 58.7 52.9 53.5 53.7 54.3 52.5 53.5
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd  6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3
S-  7  2.4  2.4  3.1  2.8  3.0  3.4  2.6  2.6  3.2  3.0  2.6  1.8  1.9  2.4  2.8
S-  8  7.6  8.3  8.3  7.3  6.5  7.9  7.7  7.4  7.3  6.9  6.9  7.7  7.2  7.3  8.2
S-  9  4.0  3.3  4.2  3.9  3.7  4.2  3.5  3.3  3.6  2.9  3.7  3.2  2.7  3.3  4.7
S-  6  5.3  6.4  5.1  4.6  3.8  5.8  5.5  5.2  4.2  4.1  5.2  5.3  5.1  5.8  6.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.76 2.45 3.02 2.76 2.95 2.53 54.60 52.01 2.59 54.59 51.92 2.66   0.07
      8  7.53 7.23 7.55 7.71 7.78 7.35       47.25 7.35       47.09 7.49   0.14
      9  3.55 3.45 3.25 3.65 3.91 3.45       51.18 3.41       50.97 3.62   0.20
      6  5.27 5.21 5.13 5.45 5.36 5.14       49.44 5.16       49.40 5.19   0.03
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.63  1.59                   1.51  1.43 1.05  1.93  1.74 1.11   1.06
      8         1.74                         1.57 0.96        2.03 0.95   0.99
      9         1.68                         1.70 0.88        1.83 1.05   1.19
      6         1.97                         1.60 0.94        2.40 0.80   0.86
Suggested regression eqns from two most closely related CDs (  7 and   8): 
          0.97(F  7 - 51.92)(1.11) + 54.59      0.96(F  8 - 47.09)(0.95) + 54.59

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.923 0.894 0.891 0.861
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 62.4 63.3 65.5 65.8 64.8 64.6 63.5 63.2 67.2 61.5 64.0 65.9 62.5 62.3 61.1
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd  8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7
S-  7  2.2  2.4  2.7  2.8  2.5  3.6  2.4  1.9  2.5  2.5  2.2  2.9  1.5  1.0  1.9
S- 10 -0.8 -1.2 -1.2 -0.9 -0.5  0.8 -1.1 -1.8 -0.7 -1.3 -1.4 -0.4 -2.5 -3.0 -0.7
S-  9  4.4  3.8  4.3  4.1  3.8  5.3  5.1  3.8  3.4  3.5  4.0  5.3  2.8  2.0  4.9
S-  8  7.3  7.6  7.9  7.3  6.0  8.0  7.9  6.5  6.1  6.1  6.5  8.3  6.2  4.9  6.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.44 2.29 2.75 2.36 2.62 2.08 64.34 61.88 2.46 63.84 61.50 2.34  -0.12
     10 -1.12-1.58-0.76-1.04-0.89-1.42       65.60-1.26       64.96-1.12   0.14
      9  3.90 3.65 3.78 3.99 4.31 3.70       60.56 3.78       59.81 4.03   0.26
      8  6.88 6.63 6.99 6.93 7.37 6.35       57.52 6.82       56.97 6.87   0.05
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.44  1.33                   1.39  1.27 1.09  1.72  1.46 1.17   1.08
     10         1.42                         1.39 1.00        1.58 1.09   1.09
      9         1.51                         1.56 0.89        1.75 0.98   1.10
      8         1.42                         1.45 0.96        1.62 1.06   1.11
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.96(F  7 - 61.50)(1.17) + 63.84      0.95(F 10 - 64.96)(1.09) + 63.84

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6  24    0.912 0.859 0.849 0.842
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.9 70.4 70.6 73.7 73.7 73.2 70.8 70.1 74.3 68.5 72.4 72.0 70.2 68.5 69.5
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd  6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7
cd 24 69.4 68.3 68.6 70.9 72.5 71.3 67.8 67.5 72.9 66.8 69.5 68.6 69.2 67.8 66.8
S-  7  1.9  1.9  1.6  2.6  2.6  3.2  1.7  1.2  2.1  1.7  1.9  2.2  0.7  0.4  1.9
S-  9  4.7  4.3  4.0  5.2  4.1  6.1  4.4  3.7  3.9  3.4  4.2  5.3  3.1  1.9  4.9
S-  6  4.1  4.7  4.5  5.3  3.9  4.9  4.6  4.6  3.0  3.6  4.9  5.4  2.8  2.3  4.7
S- 24  1.5  2.1  2.0  2.8  1.2  2.0  3.0  2.6  1.4  1.7  3.0  3.4  1.1  0.7  2.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.90 1.80 2.17 1.82 2.06 1.56 71.39 69.39 2.00 71.26 69.42 1.84  -0.16
      9  4.12 3.77 4.29 4.14 4.47 3.83       67.31 4.08       67.04 4.22   0.13
      6  4.02 3.76 4.16 3.80 4.48 3.83       67.47 3.92       67.03 4.23   0.31
     24  1.85 1.73 2.01 1.38 2.20 1.99       69.60 1.79       69.19 2.06   0.28
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.45  1.20                   1.20  1.07 1.12  1.82  1.38 1.31   1.17
      9         1.42                         1.45 0.83        1.53 1.19   1.43
      6         1.51                         1.55 0.78        1.77 1.03   1.32
     24         1.58                         1.62 0.74        1.87 0.97   1.31
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.96(F  7 - 69.42)(1.31) + 71.26      0.93(F  9 - 67.04)(1.19) + 71.26

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6  10    0.894 0.862 0.814 0.777
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.0 74.4 73.2 75.8 77.0 77.5 74.9 74.0 76.7 72.2 76.3 76.4 75.2 72.3 72.8
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
S-  7  1.7  1.3  1.2  2.4  2.4  2.5  1.7  0.8  2.0  1.5  2.0  2.4  0.8  0.0  0.7
S-  9  4.6  3.9  4.1  4.8  4.3  5.4  4.1  3.7  4.7  3.6  4.2  5.2  2.8  2.5  3.7
S-  6  3.2  3.6  4.3  5.0  4.6  4.5  4.2  4.1  3.8  4.2  4.4  5.4  1.8  1.8  3.3
S- 10 -0.1 -0.7 -1.2 -0.8 -0.5  1.4 -1.0 -1.8 -0.1 -1.9 -0.9  0.2 -1.3 -2.5 -1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.64 1.54 1.92 1.58 1.71 1.34 74.81 73.07 1.74 74.98 73.42 1.57  -0.17
      9  4.26 3.96 4.77 4.33 4.30 3.82       70.51 4.30       70.87 4.11  -0.19
      6  3.92 3.49 4.35 3.96 4.14 3.54       70.99 3.82       71.09 3.89   0.07
     10 -0.67-0.99-0.01-0.65-0.74-1.08       75.44-0.63       75.81-0.82  -0.19
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.30  1.05                   0.95  0.92 1.03  1.70  1.18 1.43   1.39
      9         1.17                         1.06 0.89        1.25 1.36   1.53
      6         1.34                         1.30 0.73        1.57 1.08   1.49
     10         1.07                         0.93 1.01        1.08 1.58   1.55
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.95(F  7 - 73.42)(1.43) + 74.98      0.93(F  9 - 70.87)(1.36) + 74.98

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6   8    0.913 0.893 0.880 0.855
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.1 71.8 72.8 74.3 75.3 75.3 73.2 72.4 75.1 71.2 75.2 72.8 73.9 71.3 71.2
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6
cd  8 67.9 65.2 66.5 66.5 67.5 68.4 66.8 66.2 68.1 65.3 68.0 66.2 68.7 66.8 65.9
S-  7  1.7  1.4  1.1  2.6  2.5  2.3  1.8  1.1  2.4  1.1  2.1  1.6  0.8  0.6  0.2
S-  9  4.9  4.4  4.3  4.5  4.4  4.5  4.1  3.3  4.9  2.8  4.0  4.4  3.5  3.7  3.4
S-  6  3.4  4.2  3.9  4.3  4.8  4.1  4.2  3.8  4.7  3.8  5.1  4.5  3.3  3.0  3.6
S-  8  7.2  6.7  6.2  7.8  7.8  6.8  6.4  6.2  7.0  5.9  7.2  6.5  5.2  4.6  5.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.62 1.44 1.90 1.62 1.74 1.27 73.51 71.85 1.66 73.38 71.81 1.57  -0.09
      9  4.21 3.85 4.75 4.23 4.28 3.82       69.36 4.15       69.30 4.08  -0.08
      6  4.08 3.53 4.50 4.32 4.05 4.00       69.66 3.85       69.33 4.05   0.20
      8  6.53 6.18 6.79 6.75 6.83 5.95       67.05 6.47       66.93 6.45  -0.02
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.42  1.19                   1.35  1.31 1.02  1.54  1.04 1.47   1.44
      9         1.38                         1.36 0.99        1.21 1.27   1.28
      6         1.46                         1.52 0.89        1.34 1.15   1.29
      8         1.38                         1.68 0.80        1.08 1.43   1.78
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.96(F  7 - 71.81)(1.47) + 73.38      0.94(F  9 - 69.30)(1.27) + 73.38

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6  10    0.842 0.830 0.799 0.799
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.2 68.1 67.5 67.7 66.2 65.9 67.4 66.9 68.3 64.2 67.7 65.0 68.2 65.7 62.7
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd  6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
S-  7  1.8  1.9  1.6  2.6  2.5  2.4  2.0  1.3  2.6  1.7  2.8  1.7  1.3  1.0 -1.6
S-  9  4.5  3.8  3.8  4.4  4.3  4.6  4.7  3.7  4.8  3.2  4.4  3.7  4.0  3.6  1.5
S-  6  3.6  4.5  4.0  4.1  5.0  4.7  5.3  4.4  4.5  4.2  5.8  3.5  4.0  3.2  1.6
S- 10 -0.8 -1.1 -1.3 -0.9 -1.1 -0.2 -0.8 -1.7 -0.1 -2.0 -0.9 -1.3 -1.0 -1.6 -4.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.79 1.39 2.10 2.00 1.97 1.36 67.09 65.38 1.71 66.64 64.95 1.70  -0.02
      9  4.12 3.63 4.63 4.37 4.22 3.62       63.15 3.94       62.70 3.95   0.00
      6  4.25 3.54 4.55 4.83 4.37 3.82       63.27 3.83       62.48 4.17   0.34
     10 -1.11-1.55-0.49-1.12-0.91-1.61       68.22-1.13       67.92-1.27  -0.15
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.50  1.41                   1.35  1.37 0.98  1.61  1.22 1.32   1.34
      9         1.50                         1.33 1.01        1.10 1.47   1.45
      6         1.60                         1.42 0.95        1.29 1.25   1.31
     10         1.42                         1.31 1.03        1.07 1.51   1.47
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.92(F  7 - 64.95)(1.32) + 66.64      0.91(F  9 - 62.70)(1.47) + 66.64

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9   7   6   8    0.835 0.801 0.798 0.786
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 58.4 58.1 60.6 58.5 57.4 56.1 57.4 59.7 57.8 56.1 57.9 58.4 56.5 55.1 52.5
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd  6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
S-  9  4.7  4.1  3.0  3.6  4.7  5.0  4.0  4.6  4.4  3.1  4.2  4.2  4.5  4.0  1.0
S-  7  1.9  2.0  2.0  2.7  2.7  2.7  1.5  2.5  2.2  2.0  2.8  2.3  1.3  1.1 -2.1
S-  6  4.2  5.0  4.7  4.5  4.9  5.4  5.3  5.4  5.0  4.3  6.3  4.4  5.6  4.3  1.2
S-  8  7.2  7.2  7.3  7.9  7.7  7.5  6.9  7.2  7.2  6.7  8.0  7.3  6.6  5.6  3.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.01 3.57 4.17 4.30 4.29 3.64 57.48 53.73 3.75 57.36 53.41 3.95   0.20
      7  1.82 1.23 1.93 2.16 2.27 1.36       55.94 1.54       55.53 1.83   0.29
      6  4.62 3.96 4.53 5.22 4.89 4.45       53.40 4.08       52.66 4.70   0.62
      8  6.77 6.08 6.63 7.29 7.37 6.33       51.17 6.31       50.48 6.88   0.57
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.64  1.66                   1.56  0.90 1.73  1.88  1.63 1.15   0.66
      7         1.45                         1.11 1.41        1.28 1.47   1.04
      6         1.73                         1.18 1.32        1.48 1.26   0.96
      8         1.60                         1.18 1.32        1.16 1.61   1.22
Suggested regression eqns from two most closely related CDs (  9 and   7): 
          0.91(F  9 - 53.41)(1.15) + 57.36      0.89(F  7 - 55.53)(1.47) + 57.36

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9   7  10  38    0.900 0.882 0.880 0.877
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.9 51.3 49.2 47.7 47.8 46.0 43.2 51.3 48.8 46.4 47.1 50.1 45.4 45.9 43.1
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S-  9  3.7  3.6  3.4  3.2  4.3  4.8  3.9  4.5  4.4  3.5  4.2  3.8  4.3  3.3  0.9
S-  7  1.2  2.3  2.4  1.8  2.8  2.5  1.7  2.3  2.4  2.0  2.4  2.3  1.9  1.2 -2.0
S- 10 -2.8 -2.0 -3.3 -3.4 -1.2 -1.1 -3.3 -1.8 -1.9 -2.7 -2.3 -1.9 -2.2 -2.8 -5.4
S- 38  1.7  1.8  1.8  1.6  2.4  2.3  1.9  3.1  2.2  1.6  2.9  1.4  2.8  0.8 -1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  3.67 3.27 3.73 3.87 3.96 3.48 46.60 43.22 3.39 47.28 43.56 3.72   0.33
      7  1.76 1.17 1.93 2.00 2.13 1.46       45.16 1.44       45.46 1.82   0.38
     10 -2.49-2.94-2.31-2.37-2.15-2.74       49.29-2.69       49.82-2.54   0.15
     38  1.60 1.09 1.65 1.81 1.90 1.50       45.35 1.25       45.48 1.81   0.55
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.05  2.15                   1.68  1.54 1.09  2.45  2.26 1.08   0.99
      7         1.92                         1.48 1.14        1.99 1.23   1.08
     10         1.96                         1.43 1.18        2.11 1.16   0.98
     38         2.17                         1.48 1.14        2.20 1.11   0.98
Suggested regression eqns from two most closely related CDs (  9 and   7): 
          0.95(F  9 - 43.56)(1.08) + 47.28      0.94(F  7 - 45.46)(1.23) + 47.28

Station#1868  LINCOLN             , va  4490904    lat/lon 77.72   39.12    38M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10   7  38    0.933 0.926 0.921 0.907
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 36.6 40.1 40.4 38.6 40.1 41.1 37.7 42.8 41.2 40.7 37.5 44.5 36.1 38.6 36.7
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4
S-  9  3.4  4.3  3.7  2.8  3.7  3.0  3.4  3.3  4.0  2.7  3.9  4.7  3.5  3.4 -0.6
S- 10 -3.5 -2.4 -3.8 -3.8 -1.9 -2.4 -4.0 -3.2 -3.4 -3.6 -3.6 -1.8 -3.1 -3.2 -6.8
S-  7  1.5  2.4  2.1  1.7  3.1  2.2  1.9  2.5  2.1  1.6  2.6  2.7  2.2  1.6 -3.3
S- 38  2.2  3.0  2.4  1.0  1.5  0.4  1.3  1.8  2.1  1.2  2.7  3.0  1.8  1.6 -2.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  3.33 3.04 3.29 3.65 3.50 3.08 38.47 35.43 3.04 39.52 36.24 3.28   0.24
     10 -3.38-3.65-3.43-3.29-2.98-3.65       42.12-3.65       42.90-3.37   0.28
      7  1.81 1.48 1.87 2.04 2.15 1.36       36.91 1.56       37.72 1.80   0.24
     38  1.45 0.89 1.41 2.00 1.56 1.38       37.37 1.10       37.97 1.55   0.45
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.45  2.64                   1.99  2.20 0.91  2.33  2.10 1.11   1.22
     10         2.36                         1.90 1.05        1.95 1.20   1.14
      7         2.43                         1.96 1.02        2.15 1.09   1.07
     38         2.70                         2.22 0.90        2.24 1.04   1.16
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.97(F  9 - 36.24)(1.11) + 39.52      0.96(F 10 - 42.90)(1.20) + 39.52

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 39.10 41.88 47.39 55.44 64.24 71.20 74.78 73.64 68.15 57.70 48.21 41.79
1952 40.93 42.58 47.75 55.52 65.99 73.18 76.76 73.72 65.71 56.62 46.79 42.22
1953 40.48 43.67 48.60 57.93 66.81 74.16 76.11 74.69 68.45 58.54 48.90 41.46
1954 40.21 42.22 50.24 56.24 65.11 70.17 74.85 74.74 69.62 58.98 46.91 37.97
1955 36.39 40.94 49.38 58.29 64.67 71.37 74.57 74.44 67.33 56.95 45.45 37.33
1956 36.26 40.37 47.27 55.14 64.12 71.12 74.15 72.01 66.19 56.99 50.88 42.85
1957 41.34 40.87 49.46 57.34 66.60 72.27 74.72 73.40 65.08 56.61 46.85 40.35
1958 35.05 35.22 43.11 53.80 63.68 70.87 73.98 72.81 65.38 57.07 45.23 38.04
1959 35.03 39.90 48.25 57.51 66.64 72.28 75.60 74.55 69.13 58.77 48.99 41.52
1960 38.43 36.02 43.45 51.85 64.75 69.85 74.73 73.65 67.40 57.68 45.16 35.88
1961 32.99 39.08 46.63 53.55 61.26 69.46 74.34 74.26 67.93 59.10 47.11 39.08
1962 35.14 37.47 44.80 55.12 64.81 70.72 72.47 70.36 65.62 55.97 45.06 36.47
1963 32.43 38.81 46.90 57.31 64.33 70.28 73.67 71.59 66.13 57.95 46.15 38.69
1964 34.16 40.02 46.01 56.22 65.02 72.07 74.29 72.21 64.52 56.62 47.96 41.97
1965 38.48 39.11 45.76 55.59 64.71 71.40 73.47 73.34 66.27 57.23 47.78 39.94
1966 35.94 38.03 45.35 54.65 62.86 70.95 74.62 72.52 65.13 56.00 45.97 41.15
1967 36.90 40.57 46.61 54.63 62.91 68.19 72.93 70.46 64.02 54.01 46.00 38.28
1968 34.79 38.39 46.44 55.81 63.39 70.24 75.30 73.48 67.52 58.43 48.01 39.22
1969 35.21 37.19 45.74 55.12 65.62 71.62 73.98 71.58 64.72 55.44 44.67 36.05
1970 33.55 36.40 44.97 54.74 65.22 72.11 74.98 74.91 69.58 60.65 49.27 40.15
1971 36.99 38.71 46.07 53.82 63.70 70.32 73.90 72.85 68.86 60.15 52.12 44.22
1972 40.70 40.73 45.90 54.42 61.72 68.33 71.93 72.08 65.06 55.73 47.44 41.83
1973 39.40 41.85 47.89 55.80 63.56 70.58 75.42 74.38 68.70 60.39 49.83 44.81
1974 40.87 44.65 49.43 57.74 63.74 68.92 72.00 71.58 65.62 57.15 48.28 42.50
1975 39.99 41.37 45.75 54.19 63.44 70.62 73.84 71.83 67.37 59.45 50.12 41.00
1976 39.49 43.98 52.31 57.36 64.48 69.92 73.19 71.49 64.26 53.95 43.44 33.95
1977 32.66 38.48 50.07 59.24 65.20 71.81 75.33 75.41 67.58 58.31 46.99 38.51
1978 32.10 34.48 43.08 53.90 63.43 69.46 73.93 73.24 67.25 58.33 48.76 41.21
1979 34.31 37.03 44.63 56.31 62.93 68.94 72.56 72.01 66.16 58.41 49.68 42.35
1980 36.66 37.93 45.16 55.40 64.22 71.23 75.60 76.02 68.94 58.04 46.44 38.04
1981 36.71 38.86 48.46 55.27 65.65 70.82 74.09 71.43 64.52 56.50 45.84 37.50
1982 34.48 38.50 46.37 55.54 63.45 70.84 72.39 71.32 65.30 58.11 50.53 43.11
1983 39.12 40.66 46.44 54.61 62.34 70.37 75.25 73.99 67.38 57.58 46.14 37.01
1984 35.12 37.92 45.65 52.72 63.41 70.50 74.41 71.51 67.95 57.74 51.40 40.54
1985 38.53 39.22 48.59 57.72 65.49 70.90 73.16 71.95 66.56 60.27 49.50 41.39
1986 35.71 39.89 47.01 56.34 65.14 72.19 74.20 72.46 66.23 57.56 47.12 38.19
1987 34.78 37.58 44.68 54.61 63.98 72.19 75.78 74.51 65.33 56.27 46.50 39.41
1988 36.01 38.13 46.45 54.88 63.01 70.65 75.10 73.59 64.68 54.44 44.87 41.05
1989 38.66 41.69 46.44 54.02 63.40 70.85 74.88 73.03 67.12 58.24 44.10 39.20
1990 38.72 47.04 51.13 56.94 64.34 71.36 74.69 73.03 67.24 59.30 51.74 44.42
1991 42.02 43.33 50.05 58.95 66.87 73.42 75.13 73.76 66.86 57.54 48.82 42.16
1992 39.69 40.69 46.54 53.40 61.35 68.81 72.35 71.86 64.08 56.07 46.34 40.84
1993 36.96 38.15 43.62 53.44 63.39 71.45 74.92 74.18 66.42 56.91 45.53 36.72
1994 33.28 36.96 47.75 55.63 65.26 70.55 74.66 71.85 64.46 56.87 48.82 42.81
1995 38.19 40.33 46.63 55.66 63.65 71.03 75.46 73.73 67.29 55.51 44.56 35.69
1996 33.66 36.07 44.05 53.12 64.11 70.32 73.88 72.06 65.71 54.77 45.12 38.02
1997 38.31 41.10 46.72 52.79 60.05 67.88 72.09 71.10 64.30 54.44 44.65 37.96

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.956 0.946 0.935 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.1 35.1 38.5 35.7 34.8 36.0 38.7 38.7 42.0 39.7 37.0 33.3 38.2 33.7 38.3
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S- 10 -1.6 -3.4 -1.8 -3.2 -3.6 -2.1 -2.0 -2.2 -1.4 -3.0 -3.4 -4.3 -3.3 -3.6 -3.5
S-  7  2.9  2.4  3.7  3.4  1.6  3.2  3.7  4.2  4.6  3.3  2.6  2.9  2.4  2.3  1.6
S-  9  3.9  3.8  5.7  4.2  2.4  3.8  4.1  5.0  5.7  3.9  3.1  3.0  4.0  3.0  2.9
S- 13 -4.2 -6.6 -4.9 -6.9 -6.7 -4.9 -5.6 -5.9 -3.9 -6.3 -6.0 -7.8 -5.5 -7.2 -6.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.34-2.05-2.48-1.98-2.26-3.21 37.09 39.40-2.30 37.25 40.07-2.82  -0.52
      7  3.55 3.57 3.60 4.18 3.35 2.81       33.45 3.64       34.28 2.97  -0.67
      9  4.54 4.55 4.57 5.26 4.40 3.66       32.62 4.47       33.35 3.90  -0.57
     13 -5.66-5.60-5.90-5.24-5.57-6.14       42.99-5.89       43.16-5.91  -0.02
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.66  2.48                   2.86  2.49 1.15  2.36  1.82 1.29   1.13
      7         2.52                         2.68 1.06        2.00 1.18   1.11
      9         2.89                         2.99 0.96        1.85 1.27   1.33
     13         2.54                         2.78 1.03        1.66 1.42   1.38
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.98(F 10 - 40.07)(1.29) + 37.25      0.97(F  7 - 34.28)(1.18) + 37.25

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.956 0.932 0.925 0.910
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.7 37.9 39.2 39.9 37.6 38.1 41.7 47.0 43.3 40.7 38.2 37.0 40.3 36.1 41.1
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
S- 10 -1.1 -2.7 -1.7 -2.6 -2.7 -1.7 -1.8 -1.2 -1.6 -3.0 -3.4 -3.8 -2.6 -3.3 -3.1
S-  7  3.6  3.7  3.6  3.6  2.0  3.5  4.3  5.0  4.4  3.6  3.2  4.7  2.9  2.4  2.7
S-  9  4.6  4.1  5.8  4.0  2.2  4.2  3.5  5.0  5.3  3.7  2.9  3.8  4.3  3.3  3.2
S- 13 -3.7 -7.2 -5.4 -6.8 -6.3 -5.0 -6.0 -4.3 -4.7 -6.5 -6.6 -8.4 -5.7 -7.3 -7.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.94-1.95-1.86-1.49-1.74-2.98 39.88 41.89-2.01 39.92 42.35-2.43  -0.42
      7  4.07 3.90 4.27 4.67 3.90 3.41       35.81 4.07       36.37 3.54  -0.52
      9  4.69 4.73 4.78 5.42 4.49 3.78       35.21 4.67       35.92 4.00  -0.67
     13 -5.74-5.84-5.61-5.32-5.53-6.71       45.76-5.89       46.03-6.11  -0.23
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.54  2.45                   2.28  2.14 1.07  2.68  2.25 1.19   1.12
      7         2.26                         1.94 1.18        2.33 1.15   0.98
      9         2.79                         2.46 0.93        2.36 1.14   1.22
     13         2.57                         2.47 0.93        2.21 1.22   1.31
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.98(F 10 - 42.35)(1.19) + 39.92      0.97(F  7 - 36.37)(1.15) + 39.92

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.953 0.923 0.921 0.898
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 46.4 45.7 48.6 47.0 44.7 46.5 46.4 51.1 50.0 46.5 43.6 47.8 46.6 44.0 46.7
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10 -0.9 -2.0 -1.8 -2.5 -1.7 -1.1 -1.6 -1.2 -1.2 -2.6 -2.5 -2.5 -2.0 -2.3 -2.6
S-  9  4.5  4.2  4.9  2.9  2.8  4.5  4.3  4.9  4.8  3.4  3.7  4.2  4.4  4.2  3.4
S-  7  3.6  3.6  3.4  3.9  2.1  3.9  4.2  4.6  4.1  3.9  3.5  4.7  4.0  2.8  2.2
S- 13 -3.7 -5.7 -5.1 -7.2 -5.3 -4.6 -5.8 -4.3 -4.8 -6.0 -5.4 -6.2 -5.9 -6.0 -7.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.38-1.38-1.26-0.89-1.41-2.25 47.00 48.40-1.40 46.78 48.67-1.89  -0.49
      9  4.68 4.96 4.53 5.28 4.40 4.02       42.19 4.81       42.70 4.08  -0.73
      7  4.16 4.08 4.41 4.70 3.81 3.62       42.80 4.20       43.14 3.64  -0.56
     13 -5.16-4.99-5.28-4.69-5.15-5.89       52.13-5.13       52.32-5.53  -0.41
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.08  1.97                   2.04  1.95 1.04  1.96  1.80 1.09   1.04
      9         2.04                         2.10 0.97        1.69 1.16   1.19
      7         1.89                         1.67 1.22        1.66 1.18   0.96
     13         1.96                         2.04 1.00        1.92 1.02   1.02
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 48.67)(1.09) + 46.78      0.96(F  9 - 42.70)(1.16) + 46.78

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.956 0.924 0.904 0.901
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 54.6 52.7 57.7 56.3 54.6 54.9 54.0 56.9 59.0 53.4 53.4 55.6 55.7 53.1 52.8
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
S- 10 -0.8 -1.6 -1.5 -1.3 -1.3 -0.8 -1.2 -1.0 -1.0 -1.7 -2.2 -1.6 -1.6 -1.8 -2.2
S-  9  4.9  4.4  4.0  3.7  2.6  3.9  4.0  4.8  3.8  3.4  3.6  5.1  4.0  3.9  4.0
S-  7  3.3  3.5  2.9  2.6  1.9  3.0  3.2  4.0  3.4  3.4  2.5  3.7  3.2  3.1  2.0
S- 13 -3.5 -5.3 -4.1 -4.8 -4.8 -4.1 -4.6 -4.0 -3.8 -4.5 -4.5 -4.8 -5.8 -5.4 -6.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.02-1.01-0.80-0.69-1.10-1.74 55.79 56.76-0.97 54.99 56.44-1.45  -0.47
      9  4.37 4.77 4.20 4.65 4.13 4.00       51.18 4.61       50.97 4.02  -0.59
      7  3.58 3.77 3.97 3.76 3.16 3.07       52.01 3.78       51.92 3.06  -0.72
     13 -4.41-4.36-4.50-3.99-4.39-5.02       60.19-4.40       59.67-4.68  -0.28
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.68  1.52                   1.72  1.54 1.12  1.81  1.62 1.12   1.00
      9         1.68                         1.70 1.01        1.83 0.99   0.98
      7         1.59                         1.43 1.20        1.74 1.04   0.87
     13         1.53                         1.59 1.08        1.57 1.15   1.07
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 56.44)(1.12) + 54.99      0.96(F  9 - 50.97)(0.99) + 54.99

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9   7    0.960 0.933 0.928 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 62.3 63.4 65.5 65.1 64.0 63.0 63.4 64.3 66.9 61.3 63.4 65.3 63.7 64.1 60.0
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
S- 10 -0.8 -1.2 -1.2 -1.6 -1.4 -0.8 -1.2 -0.7 -1.0 -1.4 -2.0 -1.1 -1.3 -1.2 -1.7
S- 13 -3.1 -3.3 -3.5 -4.8 -4.1 -3.5 -3.2 -3.5 -3.1 -3.8 -4.1 -3.0 -4.5 -3.9 -3.8
S-  9  4.4  3.9  4.3  3.4  2.9  3.7  4.9  5.0  3.1  3.4  3.4  4.7  3.9  3.8  3.9
S-  7  2.2  2.5  2.7  2.1  1.6  2.1  2.2  3.1  2.2  2.3  1.6  2.2  2.7  2.8  0.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.89-0.83-0.53-0.77-1.09-1.38 64.85 65.60-0.75 63.72 64.96-1.24  -0.49
     13 -3.66-3.84-3.55-3.48-3.72-3.75       68.64-3.79       67.41-3.69   0.10
      9  4.13 4.39 4.01 4.27 4.11 3.74       60.56 4.29       59.81 3.91  -0.38
      7  2.67 3.03 2.97 2.64 2.42 2.12       61.88 2.97       61.50 2.21  -0.75
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.44  1.42                   1.34  1.39 0.96  1.63  1.58 1.03   1.07
     13         1.50                         1.36 0.99        1.66 0.98   0.99
      9         1.51                         1.56 0.86        1.75 0.93   1.08
      7         1.33                         1.27 1.05        1.46 1.11   1.06
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.98(F 10 - 64.96)(1.03) + 63.72      0.97(F 13 - 67.41)(0.98) + 63.72

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.937 0.918 0.883 0.878
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.4 70.5 70.9 72.2 72.2 70.7 70.8 71.4 73.4 68.8 71.4 70.6 71.0 70.3 67.9
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
S- 10 -0.9 -0.9 -0.9 -1.8 -1.8 -0.6 -1.0 -0.8 -1.3 -1.3 -2.4 -1.8 -1.2 -1.3 -1.8
S-  9  4.2  4.3  4.3  3.7  2.6  3.5  4.5  5.0  3.0  3.7  3.2  3.9  3.8  3.8  3.4
S-  7  1.4  2.0  1.8  1.1  1.1  0.6  1.8  2.4  1.2  2.0  0.9  0.7  1.5  2.2  0.4
S- 38  1.2  2.0  1.7  0.5 -0.1  0.7  2.7  2.7  0.4  1.5  1.1  1.6  1.3  0.9  0.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.00-0.89-0.58-0.97-1.15-1.58 71.36 72.15-0.79 70.83 72.15-1.32  -0.53
      9  3.89 4.06 3.96 3.82 3.96 3.54       67.31 4.05       67.04 3.79  -0.26
      7  1.68 2.09 1.84 1.51 1.55 1.28       69.39 1.97       69.42 1.41  -0.56
     38  1.14 0.95 1.28 1.03 1.32 1.08       70.33 1.03       69.57 1.26   0.23
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.29  1.30                   1.23  1.15 1.06  1.28  1.40 0.92   0.86
      9         1.42                         1.45 0.84        1.53 0.84   0.99
      7         1.20                         1.07 1.14        1.38 0.93   0.81
     38         1.56                         1.61 0.76        1.65 0.77   1.02
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 72.15)(0.92) + 70.83      0.96(F  9 - 67.04)(0.84) + 70.83

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.897 0.877 0.848 0.837
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.3 74.4 73.2 74.2 75.8 75.1 74.9 74.7 75.1 72.3 74.9 74.7 75.5 73.9 72.1
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
S- 10 -0.9 -0.7 -1.2 -2.4 -1.8 -1.0 -1.0 -1.1 -1.6 -1.7 -2.3 -1.6 -1.1 -0.9 -1.9
S-  9  3.8  3.9  4.0  3.2  3.1  3.0  4.1  4.4  3.2  3.8  2.8  3.4  3.1  4.1  2.9
S-  7  1.0  1.4  1.2  0.8  1.1  0.2  1.7  1.5  0.5  1.7  0.6  0.7  1.0  1.5  0.0
S- 38  0.0  1.1  1.2  0.1  1.0  0.3  2.1  2.1  0.7  2.0  0.6  1.2  0.2  1.5  0.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.11-0.94-0.71-1.14-1.33-1.57 74.57 75.44-0.87 74.40 75.81-1.41  -0.54
      9  3.82 4.01 4.07 3.84 3.70 3.33       70.51 4.06       70.87 3.53  -0.53
      7  1.19 1.59 1.22 1.09 1.12 0.85       73.07 1.50       73.42 0.98  -0.52
     38  1.00 0.77 1.42 0.93 0.94 0.93       73.63 0.94       73.43 0.97   0.03
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.13  1.07                   1.02  0.93 1.09  1.06  1.08 0.98   0.90
      9         1.17                         1.06 0.96        1.25 0.85   0.89
      7         1.05                         0.92 1.11        1.18 0.89   0.81
     38         1.33                         1.30 0.78        1.39 0.76   0.97
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.95(F 10 - 75.81)(0.98) + 74.40      0.94(F  9 - 70.87)(0.85) + 74.40

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.932 0.891 0.890 0.858
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.0 71.5 71.9 72.5 74.5 73.6 73.0 73.0 73.8 71.9 74.2 71.8 73.7 72.1 71.1
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
S- 10 -1.4 -1.1 -1.5 -2.4 -1.8 -1.0 -1.0 -1.3 -1.6 -2.0 -2.2 -1.8 -1.4 -1.1 -2.4
S-  9  3.8  4.0  3.5  2.7  3.6  2.9  4.0  3.9  3.6  3.6  3.0  3.5  3.4  4.4  3.3
S-  7  0.7  1.1  0.3  0.7  1.7  0.7  1.7  1.8  1.1  1.8  1.1  0.7  0.6  1.4  0.1
S- 38 -0.3  1.1  1.0 -0.5  1.7  0.2  1.7  1.5  1.3  2.0  1.4  1.5  0.4  1.6  0.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.30-1.05-1.07-1.35-1.42-1.78 73.29 74.33-1.04 72.84 74.43-1.59  -0.55
      9  3.77 3.95 3.89 3.87 3.56 3.52       69.36 3.93       69.30 3.54  -0.40
      7  1.18 1.55 1.04 1.27 1.02 0.98       71.85 1.44       71.81 1.03  -0.41
     38  1.00 0.72 1.24 1.09 0.77 1.24       72.45 0.85       71.83 1.01   0.16
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.33  1.24                   1.23  1.12 1.11  1.05  1.08 0.97   0.88
      9         1.38                         1.36 0.91        1.21 0.87   0.95
      7         1.19                         1.31 0.94        1.04 1.01   1.07
     38         1.54                         1.41 0.88        1.33 0.79   0.90
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 74.43)(0.97) + 72.84      0.94(F  9 - 69.30)(0.87) + 72.84

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.943 0.924 0.903 0.895
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 67.4 67.9 66.6 66.2 65.3 64.7 67.1 67.2 66.9 64.1 66.4 64.5 67.3 65.7 64.3
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
S- 10 -1.6 -1.3 -2.3 -2.3 -1.9 -1.5 -1.0 -1.3 -1.6 -2.1 -2.2 -1.9 -1.8 -1.6 -2.8
S-  7  1.0  1.7  0.6  1.2  1.6  1.1  1.7  1.6  1.1  1.6  1.5  1.2  0.5  1.1  0.0
S-  9  3.7  3.6  2.9  3.0  3.4  3.3  4.5  4.1  3.4  3.1  3.1  3.2  3.1  3.6  3.1
S- 13 -3.3 -3.1 -3.7 -4.2 -3.6 -3.5 -2.2 -3.9 -2.8 -3.8 -4.1 -3.4 -3.3 -3.0 -4.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.49-1.38-1.40-1.30-1.53-1.99 66.86 68.22-1.36 66.11 67.92-1.81  -0.45
      7  1.40 1.55 1.19 1.82 1.35 0.98       65.38 1.48       64.95 1.16  -0.32
      9  3.74 3.80 3.72 4.19 3.60 3.24       63.15 3.71       62.70 3.41  -0.30
     13 -3.26-3.45-3.12-2.85-3.40-3.59       70.25-3.38       69.62-3.52  -0.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.56  1.42                   1.50  1.31 1.14  1.22  1.07 1.15   1.01
      7         1.41                         1.37 1.09        1.22 1.00   0.92
      9         1.50                         1.33 1.13        1.10 1.12   0.99
     13         1.44                         1.41 1.07        1.10 1.11   1.05
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 67.92)(1.15) + 66.11      0.96(F  7 - 64.95)(1.00) + 66.11

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9  13    0.914 0.907 0.901 0.876
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.6 57.7 60.3 57.6 56.3 54.4 58.2 59.3 57.5 56.1 56.9 56.9 55.5 54.8 54.4
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
S-  7  1.1  1.7  1.7  1.8  1.5  1.0  2.4  2.1  1.9  1.9  1.8  0.8  0.3  0.8 -0.2
S- 10 -1.9 -1.8 -2.8 -3.1 -2.2 -2.0 -1.4 -1.4 -1.7 -2.5 -3.2 -2.6 -2.7 -2.5 -3.5
S-  9  4.0  3.8  2.7  2.7  3.6  3.4  4.8  4.2  4.1  3.1  3.2  2.7  3.5  3.7  3.0
S- 13 -3.3 -3.8 -4.7 -5.5 -3.6 -4.4 -2.9 -3.5 -2.9 -4.2 -4.6 -3.9 -4.2 -4.2 -5.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.70 1.63 1.52 2.37 1.76 1.04 57.52 55.94 1.58 56.90 55.53 1.37  -0.20
     10 -1.81-1.79-1.67-1.35-1.82-2.67       59.27-1.75       59.25-2.35  -0.60
      9  3.90 3.97 3.77 4.50 3.78 3.31       53.73 3.79       53.41 3.49  -0.30
     13 -3.67-3.85-3.57-3.16-3.74-4.16       61.38-3.86       60.96-4.06  -0.20
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.64  1.45                   0.94  1.11 0.85  1.64  1.28 1.29   1.52
     10         1.52                         0.78 1.20        1.55 1.06   0.89
      9         1.66                         0.90 1.04        1.63 1.01   0.97
     13         1.52                         0.79 1.18        1.60 1.03   0.87
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.96(F  7 - 55.53)(1.29) + 56.90      0.95(F 10 - 59.25)(1.06) + 56.90

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9  38    0.928 0.927 0.927 0.912
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 46.1 51.4 49.5 47.1 46.5 44.9 44.1 51.7 48.8 46.3 45.5 48.8 44.6 45.1 44.7
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S-  7  1.4  2.4  2.7  1.3  1.5  1.4  2.6  2.8  2.4  2.0  0.9  1.0  1.1  0.4 -0.5
S- 10 -2.5 -1.9 -3.0 -4.0 -2.5 -2.2 -2.4 -1.4 -1.9 -2.7 -3.9 -3.2 -3.0 -3.5 -3.9
S-  9  4.0  3.7  3.7  2.6  3.0  3.7  4.7  5.0  4.4  3.5  2.6  2.5  3.5  2.5  2.4
S- 38  1.9  2.0  2.1  1.0  1.1  1.1  2.8  3.6  2.2  1.6  1.4  0.1  2.0  0.0  0.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.07 2.00 2.08 2.86 2.08 1.04 47.16 45.16 2.00 47.01 45.46 1.55  -0.45
     10 -2.17-2.12-2.16-1.50-2.21-3.17       49.29-2.13       49.82-2.81  -0.68
      9  3.99 4.09 3.88 4.73 3.90 3.06       43.22 3.95       43.56 3.45  -0.50
     38  1.91 1.92 1.80 2.67 1.84 1.08       45.35 1.81       45.48 1.54  -0.27
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.14  1.92                   1.61  1.48 1.08  2.40  1.99 1.21   1.11
     10         1.96                         1.43 1.13        2.11 1.14   1.01
      9         2.15                         1.54 1.04        2.26 1.06   1.02
     38         2.17                         1.48 1.08        2.20 1.09   1.00
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.96(F  7 - 45.46)(1.21) + 47.01      0.96(F 10 - 49.82)(1.14) + 47.01

Station#1869  LOUISA              , va  4505002    lat/lon 78.00   38.03     2M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  38    0.937 0.924 0.920 0.906
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 37.0 40.5 41.4 38.2 39.4 41.0 39.2 44.4 42.2 40.8 36.7 42.8 35.7 38.0 38.0
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4
S- 10 -3.1 -2.0 -2.8 -4.3 -2.6 -2.4 -2.5 -1.6 -2.4 -3.4 -4.5 -3.5 -3.5 -3.8 -5.6
S-  9  3.8  4.8  4.7  2.3  3.0  3.0  4.9  4.9  5.0  2.8  3.0  3.0  3.1  2.9  0.6
S- 13 -6.2 -4.5 -5.1 -7.2 -4.9 -5.3 -5.7 -3.6 -4.3 -5.3 -6.5 -4.9 -6.1 -6.6 -6.9
S- 38  2.6  3.4  3.4  0.6  0.8  0.4  2.8  3.4  3.1  1.4  1.9  1.3  1.4  1.0 -1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.48-2.39-2.29-1.89-2.43-3.81 39.70 42.12-2.42 39.69 42.90-3.20  -0.79
      9  4.23 4.30 4.43 5.05 4.05 2.92       35.43 4.27       36.24 3.45  -0.82
     13 -5.10-5.45-5.05-4.40-5.04-5.79       45.11-5.41       45.23-5.54  -0.13
     38  2.36 2.16 2.56 3.40 2.11 1.22       37.37 2.33       37.97 1.72  -0.61
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.51  2.36                   2.17  1.90 1.14  2.39  1.95 1.22   1.07
      9         2.64                         2.20 0.99        2.10 1.14   1.15
     13         2.24                         1.95 1.11        1.65 1.45   1.30
     38         2.70                         2.22 0.98        2.24 1.06   1.09
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 42.90)(1.22) + 39.69      0.96(F  9 - 36.24)(1.14) + 39.69

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 36.85 39.73 45.68 53.57 62.51 69.20 72.70 71.64 66.11 55.56 46.05 39.69
1952 39.00 40.31 45.15 53.05 63.72 71.08 74.62 71.64 64.09 55.27 45.73 41.19
1953 39.33 42.47 46.79 55.48 64.41 72.01 74.04 72.34 66.60 57.35 47.88 40.09
1954 39.13 41.12 49.08 54.31 63.07 68.20 73.08 73.06 68.02 57.92 46.09 37.28
1955 35.44 39.99 48.40 57.57 63.60 70.29 73.64 73.99 67.08 56.91 45.41 37.17
1956 35.83 39.26 45.85 53.21 62.28 69.31 72.31 70.10 64.47 55.31 49.04 40.86
1957 39.51 39.11 47.34 55.18 64.56 69.83 72.12 71.08 63.81 55.47 45.66 38.83
1958 33.10 32.79 40.56 51.41 61.44 68.44 71.52 70.65 63.91 56.33 44.92 37.71
1959 34.53 38.93 46.54 55.42 64.08 70.05 73.49 73.10 68.00 57.60 47.81 40.30
1960 37.20 34.64 41.83 50.14 62.91 67.71 72.53 71.66 65.90 56.66 44.06 34.81
1961 31.65 37.47 44.63 51.55 59.19 67.25 71.96 72.18 66.71 58.36 46.68 38.75
1962 35.20 36.97 43.44 52.98 62.90 68.98 71.10 69.10 64.81 55.12 43.49 34.11
1963 29.69 36.15 44.34 54.77 62.12 68.09 71.41 69.47 64.71 56.48 44.19 35.83
1964 31.08 37.03 43.63 54.06 62.77 69.61 72.01 70.42 62.76 55.02 45.84 39.62
1965 35.68 36.52 43.33 53.65 62.54 69.09 70.68 71.02 64.28 55.44 45.62 36.55
1966 31.65 32.95 40.49 49.89 58.46 67.08 71.10 69.00 61.27 52.23 42.11 37.15
1967 31.96 35.44 41.47 50.31 59.13 64.62 69.07 66.49 60.18 50.08 41.66 32.80
1968 29.47 32.59 41.79 50.96 58.71 64.96 70.27 69.02 62.90 53.63 43.19 34.58
1969 30.76 32.79 41.87 51.75 62.61 69.03 71.62 69.64 62.57 52.89 41.55 32.19
1970 29.34 31.85 41.16 51.45 61.69 68.28 70.81 70.91 65.52 56.46 45.45 35.73
1971 32.23 33.45 41.07 49.14 59.67 66.86 70.63 69.66 65.47 56.80 48.00 39.84
1972 35.80 36.10 41.63 51.39 59.11 66.01 69.12 69.09 61.64 51.83 43.39 37.49
1973 34.75 37.51 43.82 52.09 59.74 66.75 71.47 70.01 64.17 55.11 44.76 39.88
1974 36.15 39.44 43.82 53.08 59.87 65.82 69.04 66.70 58.80 49.82 42.60 38.08
1975 35.31 36.32 40.85 50.32 60.27 67.93 71.01 68.96 64.38 56.02 46.53 37.51
1976 35.40 39.51 47.39 53.03 60.86 66.57 70.13 68.09 60.31 49.89 38.82 29.26
1977 27.40 33.53 45.84 56.06 62.09 68.66 71.51 71.81 63.56 54.53 43.20 34.58
1978 27.46 29.10 37.99 49.43 59.56 66.17 71.35 71.17 64.31 54.71 44.88 37.34
1979 30.76 32.95 40.79 52.33 59.56 65.98 69.40 68.54 61.81 54.14 44.79 38.33
1980 32.17 33.55 40.50 51.42 60.64 67.47 71.01 71.22 63.78 53.11 41.35 32.79
1981 30.57 32.61 42.62 50.50 60.79 65.92 69.34 67.50 60.47 51.99 41.34 32.84
1982 29.90 33.63 42.21 52.24 60.38 67.79 68.79 67.36 61.03 53.76 46.47 38.89
1983 34.95 36.04 42.31 50.86 59.36 66.89 71.82 70.17 64.32 54.73 43.86 34.46
1984 31.90 34.33 42.48 50.76 61.72 68.53 71.66 68.68 65.61 56.41 50.63 38.63
1985 35.18 35.46 46.30 56.06 63.23 67.66 69.71 69.04 64.38 58.54 47.40 38.25
1986 31.83 34.87 43.45 53.15 62.99 69.09 71.20 69.61 63.62 55.09 44.77 35.28
1987 31.31 34.43 42.00 52.68 62.18 69.94 72.87 70.70 62.48 54.24 45.28 37.35
1988 32.55 34.83 43.76 53.07 60.96 69.08 74.06 72.47 63.50 53.57 43.61 39.62
1989 35.90 39.21 42.95 50.84 60.28 68.31 71.97 70.31 64.71 56.86 43.07 37.86
1990 36.46 43.84 47.34 52.93 59.99 67.28 71.17 70.47 65.07 57.55 49.33 41.60
1991 38.95 40.39 46.98 55.64 63.96 70.68 72.49 71.17 65.10 55.51 46.38 38.84
1992 37.48 38.37 44.46 50.55 58.78 65.88 69.37 68.90 62.05 54.10 44.59 38.74
1993 34.93 35.64 40.65 50.09 60.13 68.10 72.06 71.76 64.22 54.72 43.43 34.64
1994 31.08 33.79 43.93 51.44 61.72 67.66 71.94 69.58 63.19 57.09 49.51 43.22
1995 37.33 39.18 45.05 54.12 61.74 68.91 73.63 72.27 66.77 55.34 43.82 34.92
1996 32.99 35.33 42.41 50.86 61.95 68.00 71.55 69.67 64.22 54.16 45.09 37.30
1997 36.79 38.99 44.95 51.06 58.69 66.54 70.80 69.88 63.73 54.62 45.57 37.63

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13   7    0.906 0.905 0.894 0.892
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 35.0 31.9 35.2 31.8 31.3 32.5 35.9 36.5 39.0 37.5 34.9 31.1 37.3 33.0 36.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
S-  9 -0.3  0.5  2.3  0.3 -1.1  0.4  1.4  2.8  2.6  1.7  1.0  0.8  3.2  2.4  1.4
S- 10 -5.7 -6.6 -5.1 -7.1 -7.0 -5.6 -4.8 -4.5 -4.5 -5.2 -5.4 -6.5 -4.1 -4.2 -5.0
S- 13 -8.3 -9.9 -8.3-10.7-10.1 -8.4 -8.4 -8.2 -6.9 -8.5 -8.0-10.0 -6.3 -7.9 -7.9
S-  7 -1.3 -0.9  0.3 -0.5 -1.9 -0.3  0.9  1.9  1.6  1.1  0.6  0.7  1.5  1.6  0.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.52 3.22 1.26 0.69 0.67 1.87 35.55 32.62 2.93 34.64 33.35 1.29  -1.63
     10 -5.37-3.38-5.79-6.56-5.99-5.00       39.40-3.85       40.07-5.43  -1.58
     13 -8.68-6.93-9.22-9.81-9.30-7.93       42.99-7.44       43.16-8.52  -1.08
      7  0.53 2.24 0.28-0.39-0.38 1.02       33.45 2.10       34.28 0.37  -1.73
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   3.18  2.89                   3.01  2.99 1.01  2.45  1.85 1.33   1.32
     10         2.48                         2.49 1.21        1.82 1.35   1.11
     13         2.54                         2.78 1.08        1.66 1.47   1.36
      7         2.52                         2.68 1.12        2.00 1.23   1.09
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.95(F  9 - 33.35)(1.33) + 34.64      0.95(F 10 - 40.07)(1.35) + 34.64

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.911 0.890 0.889 0.877
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 36.0 34.3 35.5 34.9 34.4 34.8 39.2 43.8 40.4 38.4 35.6 33.8 39.2 35.3 39.0
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
S- 10 -5.8 -6.3 -5.5 -7.6 -5.8 -5.0 -4.3 -4.4 -4.6 -5.3 -5.9 -7.0 -3.8 -4.1 -5.2
S-  9  0.0  0.5  2.0 -1.0 -0.9  0.9  1.0  1.8  2.4  1.3  0.4  0.6  3.2  2.5  1.1
S-  7 -1.0  0.1 -0.1 -1.4 -1.2  0.2  1.8  1.8  1.5  1.3  0.7  1.6  1.7  1.7  0.6
S- 13 -8.3-10.8 -9.2-11.8 -9.5 -8.2 -8.5 -7.5 -7.6 -8.8 -9.1-11.5 -6.8 -8.0 -9.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -5.21-3.49-5.39-6.27-5.76-5.12 38.17 41.89-3.72 36.98 42.35-5.37  -1.64
      9  1.43 3.20 1.25 0.64 0.47 1.65       35.21 2.95       35.92 1.06  -1.90
      7  0.80 2.37 0.74-0.10-0.12 1.28       35.81 2.36       36.37 0.61  -1.75
     13 -9.01-7.38-9.14*****-9.56-8.84       45.76-7.60       46.03-9.05  -1.45
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   3.10  2.45                   2.47  2.14 1.15  2.77  2.25 1.23   1.07
      9         2.79                         2.46 1.01        2.36 1.17   1.16
      7         2.26                         1.94 1.27        2.33 1.19   0.93
     13         2.57                         2.47 1.00        2.21 1.25   1.25
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.95(F 10 - 42.35)(1.23) + 36.98      0.94(F  9 - 35.92)(1.17) + 36.98

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.888 0.863 0.844 0.827
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.3 42.5 46.3 43.5 42.0 43.8 43.0 47.3 47.0 44.5 40.7 43.9 45.0 42.4 45.0
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10 -5.0 -5.1 -4.1 -6.1 -4.3 -3.8 -5.0 -5.0 -4.3 -4.7 -5.5 -6.3 -3.5 -4.0 -4.4
S-  7 -0.5  0.5  1.1  0.3 -0.6  1.2  0.7  0.8  1.0  1.8  0.6  0.9  2.5  1.2  0.5
S-  9  0.4  1.0  2.6 -0.7  0.1  1.8  0.8  1.2  1.8  1.3  0.8  0.4  2.9  2.6  1.6
S- 13 -7.8 -8.8 -7.4-10.8 -8.0 -7.3 -9.3 -8.1 -7.8 -8.0 -8.4-10.0 -7.5 -7.7 -8.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -4.58-3.15-4.56-5.55-4.99-4.66 45.11 48.40-3.29 43.93 48.67-4.74  -1.45
      7  0.96 2.31 1.10 0.04 0.23 1.20       42.80 2.31       43.14 0.79  -1.51
      9  1.48 3.19 1.22 0.62 0.82 1.60       42.19 2.92       42.70 1.23  -1.68
     13 -8.35-6.76-8.59-9.35-8.73-8.31       52.13-7.02       52.32-8.38  -1.36
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.44  1.97                   2.28  1.95 1.17  1.86  1.80 1.04   0.89
      7         1.89                         1.67 1.36        1.66 1.12   0.82
      9         2.04                         2.10 1.08        1.69 1.10   1.02
     13         1.96                         2.04 1.12        1.92 0.97   0.87
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.94(F 10 - 48.67)(1.04) + 43.93      0.93(F  7 - 43.14)(1.12) + 43.93

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   7   9    0.876 0.839 0.826 0.824
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 50.9 50.8 56.1 53.2 52.7 53.1 50.8 52.9 55.6 50.5 50.1 51.4 54.1 50.9 51.1
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
S- 10 -4.6 -3.5 -3.1 -4.5 -3.3 -2.6 -4.4 -5.0 -4.3 -4.6 -5.5 -5.8 -3.2 -4.0 -4.0
S- 13 -7.2 -7.2 -5.8 -8.0 -6.7 -5.9 -7.8 -8.0 -7.2 -7.4 -7.8 -9.0 -7.4 -7.7 -7.9
S-  7 -0.5  1.6  1.3 -0.6 -0.1  1.2  0.0  0.0  0.1  0.6 -0.8 -0.5  1.7  0.9  0.3
S-  9  1.1  2.5  2.4  0.5  0.7  2.1  0.8  0.8  0.5  0.6  0.3  0.9  2.5  1.7  2.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -4.00-2.98-3.93-4.68-4.05-4.48 53.76 56.76-3.01 52.27 56.44-4.16  -1.16
     13 -7.39-6.33-7.63-7.98-7.35-7.76       60.19-6.44       59.67-7.39  -0.96
      7  0.60 1.79 0.83-0.23 0.21 0.32       52.01 1.75       51.92 0.35  -1.40
      9  1.40 2.79 1.06 0.66 1.17 1.25       51.18 2.57       50.97 1.31  -1.27
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.98  1.52                   1.80  1.54 1.17  1.81  1.62 1.12   0.96
     13         1.53                         1.59 1.13        1.57 1.15   1.02
      7         1.59                         1.43 1.26        1.74 1.04   0.83
      9         1.68                         1.70 1.06        1.83 0.99   0.94
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.94(F 10 - 56.44)(1.12) + 52.27      0.92(F 13 - 59.67)(1.15) + 52.27

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9   7    0.857 0.852 0.836 0.826
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 59.4 61.7 63.2 63.0 62.2 61.0 60.3 60.0 64.0 58.8 60.1 61.7 61.7 62.0 58.7
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
S- 10 -3.8 -2.8 -3.5 -3.7 -3.2 -2.8 -4.3 -5.0 -3.9 -4.0 -5.2 -4.6 -3.2 -3.3 -3.0
S- 13 -6.1 -4.9 -5.8 -7.0 -5.9 -5.6 -6.3 -7.8 -6.0 -6.4 -7.4 -6.6 -6.4 -6.1 -5.2
S-  9  1.4  2.2  2.0  1.2  1.1  1.6  1.8  0.6  0.2  0.8  0.2  1.1  2.0  1.7  2.5
S-  7 -0.8  0.8  0.4 -0.1 -0.2  0.0 -0.9 -1.3 -0.7 -0.2 -1.6 -1.3  0.8  0.6 -0.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -3.68-2.84-3.53-4.27-3.93-3.91 62.81 65.60-2.79 61.18 64.96-3.78  -0.99
     13 -6.45-5.84-6.56-6.99-6.55-6.28       68.64-5.83       67.41-6.23  -0.40
      9  1.34 2.39 1.01 0.76 1.28 1.21       60.56 2.24       59.81 1.37  -0.87
      7 -0.12 1.03-0.03-0.87-0.41-0.41       61.88 0.92       61.50-0.33  -1.25
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.71  1.42                   1.28  1.39 0.92  1.56  1.58 0.98   1.07
     13         1.50                         1.36 0.95        1.66 0.94   0.99
      9         1.51                         1.56 0.82        1.75 0.89   1.08
      7         1.33                         1.27 1.01        1.46 1.06   1.06
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.93(F 10 - 64.96)(0.98) + 61.18      0.92(F 13 - 67.41)(0.94) + 61.18

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38   7  10    0.828 0.822 0.796 0.794
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.9 68.5 67.7 69.1 69.9 69.1 68.3 67.3 70.7 65.9 68.1 67.7 68.9 68.0 66.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
S-  9  0.7  2.4  1.1  0.6  0.3  1.9  1.9  0.9  0.3  0.8 -0.2  1.0  1.7  1.5  2.0
S- 38 -2.3  0.0 -1.6 -2.6 -2.3 -0.9  0.2 -1.4 -2.3 -1.4 -2.3 -1.3 -0.8 -1.4 -0.5
S-  7 -2.1  0.0 -1.4 -2.0 -1.2 -1.0 -0.8 -1.6 -1.5 -1.0 -2.4 -2.2 -0.6 -0.1 -1.0
S- 10 -4.4 -2.9 -4.1 -4.9 -4.0 -2.2 -3.5 -4.9 -4.1 -4.2 -5.7 -4.6 -3.3 -3.6 -3.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.12 2.03 0.95 0.63 0.94 1.02 69.28 67.31 1.97 68.17 67.04 1.13  -0.84
     38 -1.63-1.08-1.73-2.16-1.69-1.45       70.33-1.06       69.57-1.40  -0.35
      7 -1.09 0.06-1.16-1.69-1.47-1.24       69.39-0.12       69.42-1.25  -1.13
     10 -3.77-2.93-3.59-4.16-4.17-4.10       72.15-2.87       72.15-3.98  -1.11
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.59  1.42                   1.23  1.45 0.85  1.23  1.53 0.80   0.95
     38         1.56                         1.61 0.76        1.65 0.74   0.98
      7         1.20                         1.07 1.15        1.38 0.89   0.77
     10         1.30                         1.15 1.07        1.40 0.88   0.82
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.91(F  9 - 67.04)(0.80) + 68.17      0.91(F 38 - 69.57)(0.74) + 68.17

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    6   9  38   8    0.793 0.793 0.791 0.759
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.8 71.7 69.7 71.2 72.9 74.1 72.0 71.2 72.5 69.4 72.1 71.9 73.6 71.6 70.8
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
cd  8 69.2 67.7 66.3 67.6 69.8 70.3 68.5 67.9 70.6 66.0 69.6 69.1 71.1 68.8 67.8
S-  6 -1.0  0.9  0.8  0.4  0.4  1.1  1.3  1.3 -0.5  1.4  0.1  0.9  0.2  1.1  1.3
S-  9  0.4  1.2  0.6  0.2  0.2  2.0  1.2  0.9  0.5  0.8 -0.1  0.7  1.3  1.8  1.6
S- 38 -3.4 -1.6 -2.2 -2.9 -1.9 -0.8 -0.8 -1.4 -1.9 -1.0 -2.2 -1.5 -1.7 -0.8 -1.0
S-  8  2.7  4.0  3.4  3.6  3.1  3.8  3.5  3.2  1.9  3.4  2.5  2.8  2.5  2.7  3.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      6  0.68 1.52 0.64 0.16 0.41 0.67 72.48 70.99 1.49 71.75 71.09 0.66  -0.83
      9  1.02 1.99 1.06 0.53 0.57 0.95       70.51 1.97       70.87 0.88  -1.09
     38 -1.79-1.25-1.58-2.37-2.20-1.45       73.63-1.15       73.43-1.68  -0.53
      8  3.14 4.13 2.93 2.65 3.19 2.68       68.42 4.06       68.69 3.07  -1.00
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      6   1.42  1.34                   1.08  1.30 0.83  1.22  1.57 0.78   0.93
      9         1.17                         1.06 1.02        1.25 0.97   0.95
     38         1.33                         1.30 0.83        1.39 0.88   1.05
      8         1.27                         1.27 0.85        1.43 0.85   1.00
Suggested regression eqns from two most closely related CDs (  6 and   9): 
          0.89(F  6 - 71.09)(0.78) + 71.75      0.89(F  9 - 70.87)(0.97) + 71.75

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38   9   6  11    0.816 0.806 0.797 0.796
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.2 68.7 69.0 69.6 70.7 72.5 70.3 70.5 71.2 68.9 71.8 69.6 72.3 69.7 69.9
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
S- 38 -4.1 -1.7 -1.9 -3.3 -2.1 -0.9 -1.1 -1.0 -1.2 -0.9 -1.0 -0.8 -1.0 -0.8 -0.8
S-  9  0.0  1.2  0.6 -0.2 -0.2  1.8  1.3  1.4  1.0  0.6  0.6  1.2  1.9  2.0  2.1
S-  6 -1.5  1.0  0.2 -0.5  0.2  1.3  1.4  1.9  0.8  1.6  1.7  1.3  1.6  1.3  2.3
S- 11 -1.7 -0.5 -0.6 -2.6 -1.2  1.0  0.1 -0.6 -0.3 -1.2 -1.0  0.2  0.4  0.0 -0.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -1.71-1.12-1.51-2.47-2.28-0.94 71.43 72.45-1.02 70.31 71.83-1.52  -0.51
      9  1.07 2.11 1.14 0.31 0.51 1.34       69.36 2.07       69.30 1.01  -1.06
      6  0.94 1.79 0.89 0.40 0.28 1.52       69.66 1.77       69.33 0.98  -0.79
     11 -0.67 0.07-0.45-1.40-1.15-0.33       71.32 0.11       70.88-0.56  -0.67
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.65  1.54                   1.33  1.41 0.94  1.14  1.33 0.85   0.91
      9         1.38                         1.36 0.98        1.21 0.94   0.96
      6         1.46                         1.52 0.88        1.34 0.85   0.97
     11         1.34                         1.14 1.16        1.11 1.02   0.88
Suggested regression eqns from two most closely related CDs ( 38 and   9): 
          0.90(F 38 - 71.83)(0.85) + 70.31      0.90(F  9 - 69.30)(0.94) + 70.31

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11   9   6   8    0.823 0.818 0.815 0.815
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.3 65.6 64.4 63.6 62.5 63.5 64.7 65.1 65.1 62.0 64.2 63.2 66.8 64.2 63.7
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd  6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1
cd  8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3
S- 11 -1.4 -0.6 -1.2 -2.2 -1.1  0.4  0.6 -0.2 -0.1 -1.1 -0.8 -0.2  1.2  0.1 -0.2
S-  9  0.6  1.3  0.7  0.3  0.6  2.1  2.1  1.9  1.6  1.0  0.9  1.9  2.6  2.1  2.5
S-  6 -0.2  2.0  0.9  0.0  1.2  2.3  2.7  2.6  1.3  2.0  2.3  1.7  2.6  1.7  2.6
S-  8  3.2  4.4  3.5  3.5  4.1  4.7  4.5  4.5  4.0  4.3  4.3  4.7  4.3  3.6  4.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.85 0.01-0.77-2.02-1.12-0.14 65.42 65.38 0.03 64.20 64.65-0.45  -0.48
      9  1.21 2.36 1.15 0.03 0.89 1.83       63.15 2.27       62.70 1.50  -0.76
      6  1.34 2.26 1.06 0.49 1.04 2.04       63.27 2.15       62.48 1.72  -0.43
      8  3.82 4.91 3.49 2.88 3.71 4.25       60.57 4.85       60.06 4.14  -0.71
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.01  1.43                   1.56  1.27 1.24  1.16  1.04 1.12   0.90
      9         1.50                         1.33 1.18        1.10 1.06   0.90
      6         1.60                         1.42 1.10        1.29 0.90   0.82
      8         1.57                         1.59 0.99        1.25 0.92   0.94
Suggested regression eqns from two most closely related CDs ( 11 and   9): 
          0.91(F 11 - 64.65)(1.12) + 64.20      0.90(F  9 - 62.70)(1.06) + 64.20

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    5   8   7  13    0.785 0.783 0.774 0.759
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 54.7 56.4 58.5 55.1 54.2 53.6 56.9 57.5 55.5 54.1 54.7 57.1 55.3 54.2 54.6
cd  5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
S-  5  4.0  6.3  6.8  5.7  5.4  5.3  7.5  6.3  5.6  5.8  6.5  6.1  6.6  6.0  6.3
S-  8  3.5  5.6  5.3  4.5  4.6  4.9  6.4  5.1  4.9  4.7  4.8  6.0  5.4  4.7  5.1
S-  7 -1.7  0.3  0.0 -0.7 -0.5  0.2  1.0  0.3 -0.1  0.0 -0.4  1.0  0.1  0.2  0.0
S- 13 -6.2 -5.2 -6.4 -8.0 -5.6 -5.3 -4.2 -5.3 -4.9 -6.1 -6.8 -3.7 -4.4 -4.8 -4.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      5  5.13 5.81 4.28 4.25 5.48 6.12 56.32 50.65 5.67 55.50 49.48 6.02   0.35
      8  4.29 5.32 3.66 3.10 4.54 5.07       51.17 5.15       50.48 5.03  -0.13
      7 -0.66 0.48-1.05-2.03-0.56 0.10       55.94 0.38       55.53-0.02  -0.40
     13 -6.03-5.00-6.14-7.56-6.07-5.10       61.38-5.06       60.96-5.45  -0.40
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      5   2.06  1.65                   1.07  1.17 0.91  1.41  1.17 1.20   1.32
      8         1.60                         1.18 0.91        1.16 1.21   1.34
      7         1.45                         1.11 0.97        1.28 1.11   1.15
     13         1.52                         0.79 1.35        1.60 0.88   0.65
Suggested regression eqns from two most closely related CDs (  5 and   8): 
          0.89(F  5 - 49.48)(1.20) + 55.50      0.88(F  8 - 50.48)(1.21) + 55.50

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   8  13    0.838 0.829 0.824 0.823
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.9 50.6 47.4 44.8 45.3 43.6 43.1 49.3 46.4 44.6 43.4 49.5 43.8 45.1 45.6
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
S-  7 -0.9  1.7  0.6 -1.1  0.2  0.1  1.6  0.4 -0.1  0.2 -1.2  1.7  0.4  0.4  0.4
S-  9  1.7  3.0  1.6  0.3  1.8  2.4  3.7  2.6  2.0  1.8  0.5  3.2  2.8  2.5  3.3
S-  8  5.0  7.1  6.6  4.4  5.0  4.9  7.3  5.5  4.9  5.2  4.1  6.9  5.5  4.7  5.3
S- 13 -6.9 -4.9 -7.4 -8.6 -5.5 -6.0 -6.2 -5.4 -6.0 -6.1 -7.3 -4.0 -5.8 -5.3 -4.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -0.29 0.92-0.74-1.62-0.12 0.26 45.90 45.16 0.74 45.76 45.46 0.29  -0.44
      9  1.62 3.02 1.06 0.25 1.70 2.28       43.22 2.68       43.56 2.19  -0.49
      8  4.81 6.00 3.97 3.77 5.20 5.24       40.25 5.65       40.25 5.51  -0.14
     13 -6.64-5.52-7.22-7.93-6.63-5.56       51.66-5.76       51.75-5.99  -0.23
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.35  1.92                   1.45  1.48 0.98  2.33  1.99 1.17   1.20
      9         2.15                         1.54 0.94        2.26 1.03   1.10
      8         2.13                         1.66 0.87        2.02 1.15   1.32
     13         1.84                         1.31 1.10        2.05 1.13   1.03
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.92(F  7 - 45.46)(1.17) + 45.76      0.91(F  9 - 43.56)(1.03) + 45.76

Station#1870  LURAY/5 E           , va  4509604    lat/lon 78.38   38.67    32M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13   7    0.890 0.884 0.883 0.881
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 34.5 38.6 38.3 35.3 37.3 39.6 37.9 41.6 38.8 38.7 34.6 43.2 34.9 37.3 37.6
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
S-  9  1.2  2.8  1.6 -0.6  0.9  1.6  3.5  2.1  1.7  0.7  1.0  3.4  2.3  2.1  0.3
S- 10 -5.7 -3.9 -6.0 -7.2 -4.7 -3.8 -3.9 -4.4 -5.7 -5.5 -6.5 -3.1 -4.2 -4.5 -5.9
S- 13 -8.7 -6.4 -8.3-10.1 -7.0 -6.8 -7.0 -6.4 -7.6 -7.4 -8.6 -4.5 -6.9 -7.3 -7.2
S-  7 -0.6  0.9  0.0 -1.7  0.3  0.8  2.0  1.3 -0.3 -0.3 -0.4  1.3  1.1  0.3 -2.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.58 3.15 1.06 0.71 1.35 1.65 38.19 35.43 2.76 37.89 36.24 1.64  -1.11
     10 -5.13-3.54-5.66-6.22-5.13-5.08       42.12-3.94       42.90-5.01  -1.07
     13 -7.75-6.59-8.42-8.73-7.74-7.07       45.11-6.93       45.23-7.34  -0.41
      7  0.06 1.59-0.36-0.89 0.00-0.07       36.91 1.28       37.72 0.17  -1.11
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.75  2.64                   2.12  2.20 0.97  2.40  2.10 1.14   1.18
     10         2.36                         1.90 1.12        1.95 1.23   1.10
     13         2.24                         1.95 1.09        1.65 1.45   1.33
      7         2.43                         1.96 1.08        2.15 1.11   1.03
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.94(F  9 - 36.24)(1.14) + 37.89      0.94(F 10 - 42.90)(1.23) + 37.89

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 38.51 40.85 46.77 54.98 64.17 71.34 75.09 73.78 68.34 57.22 47.34 41.08
1952 40.89 42.96 47.81 55.66 66.19 73.17 75.96 72.59 64.68 56.26 47.03 42.67
1953 40.68 43.58 48.39 57.68 66.55 73.87 75.67 73.97 68.40 59.19 49.42 41.39
1954 39.93 42.04 49.93 55.47 64.68 70.04 74.88 74.74 69.13 58.72 46.93 38.66
1955 37.15 41.05 49.29 58.27 64.74 71.05 74.11 74.34 67.27 56.96 45.53 38.42
1956 37.29 41.08 47.05 54.62 63.55 70.85 74.30 72.42 66.46 56.75 50.58 42.86
1957 41.99 41.49 49.76 57.41 66.45 71.78 74.21 72.77 65.16 56.82 47.68 40.99
1958 35.54 35.51 43.09 53.41 63.32 70.46 73.95 72.95 66.03 58.20 46.83 39.85
1959 36.56 40.62 48.06 57.13 66.46 72.39 75.67 74.33 68.71 57.97 48.72 41.55
1960 38.73 36.39 43.81 52.49 65.13 70.27 74.86 73.71 67.90 58.54 46.56 37.83
1961 35.08 40.71 47.00 53.79 60.87 69.06 73.66 73.84 68.12 59.69 48.47 40.32
1962 36.81 38.59 45.36 55.19 64.65 70.73 72.32 70.33 65.95 56.54 46.19 37.29
1963 32.90 38.46 47.30 57.62 64.88 70.08 73.55 71.93 67.31 59.13 46.90 38.72
1964 34.30 39.61 46.07 55.97 65.23 71.41 73.56 71.12 63.68 56.28 47.86 41.87
1965 37.28 37.49 44.06 54.82 64.16 70.65 72.36 72.37 65.90 57.08 47.86 39.98
1966 36.40 38.27 45.40 54.41 62.67 71.22 74.44 72.79 65.20 56.76 47.01 41.98
1967 37.51 40.43 46.22 54.07 62.41 67.44 71.93 69.34 63.11 53.07 45.65 38.14
1968 35.06 38.19 46.25 55.97 63.36 70.04 75.05 73.73 67.61 57.73 46.37 37.72
1969 34.10 36.40 44.83 54.34 64.90 71.26 73.73 71.66 64.84 55.40 44.76 35.81
1970 33.09 35.55 44.59 54.30 64.96 71.48 74.08 74.11 68.86 60.11 48.85 39.92
1971 37.13 38.42 45.62 53.28 63.41 70.00 73.52 72.41 68.37 59.20 51.67 43.75
1972 41.00 40.66 46.35 55.16 62.30 68.64 72.38 72.93 66.08 56.42 47.70 41.35
1973 38.43 41.04 47.18 55.19 62.73 69.62 74.52 73.64 68.47 59.95 48.79 43.66
1974 40.03 44.01 48.32 56.50 62.89 68.70 72.27 71.53 65.05 55.99 47.09 41.56
1975 39.11 40.24 45.04 54.01 63.73 70.67 73.93 72.23 67.29 58.60 48.95 40.02
1976 38.40 42.92 51.31 56.59 63.19 68.70 72.54 71.24 64.23 53.46 42.76 32.57
1977 31.15 37.08 49.31 59.11 65.33 71.86 74.85 74.83 66.82 57.99 46.74 38.17
1978 31.87 34.61 44.10 54.92 64.37 70.14 74.76 74.28 67.88 58.83 48.41 40.43
1979 33.29 36.62 44.89 56.46 63.10 69.11 72.87 72.45 65.98 57.65 48.59 42.11
1980 36.80 37.87 44.86 55.46 64.03 71.00 75.31 76.34 68.75 57.62 46.38 38.31
1981 36.78 38.34 47.89 54.97 65.80 71.47 75.11 72.02 64.40 55.64 44.86 36.12
1982 33.27 37.26 46.12 55.59 64.04 71.28 73.34 72.67 67.05 59.23 51.12 43.35
1983 39.37 40.23 45.85 53.81 62.20 70.52 76.00 74.91 68.19 58.06 46.75 38.41
1984 36.82 39.82 46.89 53.54 63.82 70.30 74.21 71.31 68.69 58.89 52.82 41.65
1985 39.63 40.40 50.23 58.88 66.19 70.76 73.28 72.27 67.36 61.10 50.14 41.79
1986 36.62 40.81 48.60 56.86 65.77 72.52 75.22 73.36 66.78 58.50 48.48 39.95
1987 36.51 39.22 45.99 55.81 65.15 73.63 77.18 75.62 66.45 57.15 47.68 40.72
1988 36.84 38.96 47.06 55.74 63.68 71.21 76.01 74.48 65.46 55.15 45.63 42.19
1989 39.23 42.43 47.07 54.73 63.59 70.49 74.44 72.44 66.63 57.78 44.93 40.04
1990 39.43 46.85 50.90 56.91 63.59 70.11 73.25 72.05 66.54 59.17 51.25 44.41
1991 41.48 43.59 50.02 58.92 66.92 73.79 75.82 74.62 68.23 58.67 49.53 42.84
1992 41.12 42.58 47.95 54.66 62.65 70.14 73.88 73.30 65.98 57.74 48.08 42.59
1993 38.84 40.17 45.58 55.81 65.89 74.05 77.47 76.46 68.42 58.53 47.50 39.01
1994 36.19 39.46 49.47 56.33 65.29 70.47 74.50 72.12 65.36 58.21 50.76 44.78
1995 40.10 42.18 48.47 57.57 64.85 71.66 75.95 74.21 67.87 56.28 45.95 37.51
1996 35.69 37.66 45.02 54.05 64.74 71.09 73.60 70.92 64.68 54.08 45.47 38.23
1997 38.43 41.03 46.49 52.02 58.95 66.95 71.70 71.02 64.28 54.44 44.83 38.20

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.964 0.957 0.940 0.939
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.4 36.8 39.6 36.6 36.5 36.8 39.2 39.4 41.5 41.1 38.8 36.2 40.1 35.7 38.4
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S- 10 -1.3 -1.7 -0.7 -2.3 -1.8 -1.3 -1.4 -1.5 -2.0 -1.6 -1.5 -1.4 -1.4 -1.5 -3.4
S-  9  4.2  5.5  6.8  5.1  4.1  4.7  4.7  5.7  5.2  5.4  5.0  5.9  5.9  5.1  3.0
S-  7  3.2  4.1  4.8  4.3  3.3  4.0  4.2  4.9  4.1  4.7  4.5  5.8  4.3  4.3  1.7
S- 13 -3.9 -4.9 -3.8 -5.9 -4.9 -4.1 -5.0 -5.2 -4.4 -4.9 -4.1 -4.9 -3.6 -5.2 -6.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.97-1.64-2.19-2.58-1.59-1.82 37.58 39.40-1.82 38.42 40.07-1.65   0.17
      9  4.91 4.96 4.87 4.66 5.06 5.05       32.62 4.96       33.35 5.07   0.12
      7  3.92 3.98 3.89 3.58 4.02 4.20       33.45 4.12       34.28 4.14   0.02
     13 -5.29-5.20-5.61-5.84-4.90-4.75       42.99-5.41       43.16-4.74   0.67
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.62  2.48                   2.49  2.49 1.00  1.79  1.82 0.98   0.98
      9         2.89                         2.99 0.83        1.85 0.97   1.16
      7         2.52                         2.68 0.93        2.00 0.89   0.96
     13         2.54                         2.78 0.89        1.66 1.08   1.20
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 40.07)(0.98) + 38.42      0.98(F  9 - 33.35)(0.97) + 38.42

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  38    0.967 0.940 0.925 0.924
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.2 39.8 40.4 40.8 39.2 39.0 42.4 46.8 43.6 42.6 40.2 39.5 42.2 37.7 41.0
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10 -1.6 -0.8 -0.5 -1.7 -1.0 -0.9 -1.1 -1.4 -1.4 -1.1 -1.4 -1.3 -0.8 -1.8 -3.2
S-  9  4.2  6.0  7.0  5.0  3.9  5.0  4.3  4.8  5.6  5.6  4.9  6.3  6.2  4.8  3.1
S- 13 -4.2 -5.3 -4.3 -5.9 -4.7 -4.1 -5.2 -4.5 -4.4 -4.6 -4.6 -5.9 -3.8 -5.7 -7.9
S- 38  1.4  4.0  5.6  2.2  0.5  3.1  2.0  2.6  3.6  2.9  3.0  4.5  3.9  2.9  1.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.74-1.77-2.00-2.07-1.25-1.55 40.03 41.89-1.86 41.03 42.35-1.32   0.54
      9  4.90 4.92 4.64 4.85 4.97 5.22       35.21 4.82       35.92 5.10   0.29
     13 -5.54-5.65-5.75-5.89-5.05-5.27       45.76-5.74       46.03-5.00   0.73
     38  2.62 2.39 2.40 2.77 2.55 3.15       37.64 2.39       38.13 2.89   0.50
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.50  2.45                   2.25  2.14 1.05  2.17  2.25 0.97   0.92
      9         2.79                         2.46 0.92        2.36 0.92   1.00
     13         2.57                         2.47 0.91        2.21 0.98   1.08
     38         3.03                         2.71 0.83        2.54 0.86   1.03
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.35)(0.97) + 41.03      0.97(F  9 - 35.92)(0.92) + 41.03

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13   7    0.958 0.913 0.896 0.888
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.8 46.9 50.2 48.6 46.0 47.1 47.1 50.9 50.0 48.0 45.6 49.5 48.5 45.0 46.5
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
S- 10 -1.5 -0.7 -0.2 -0.9 -0.3 -0.5 -0.9 -1.4 -1.2 -1.2 -0.6 -0.8 -0.1 -1.4 -2.9
S-  9  4.0  5.4  6.6  4.5  4.1  5.1  4.9  4.7  4.8  4.8  5.7  5.9  6.3  5.2  3.1
S- 13 -4.2 -4.4 -3.5 -5.7 -4.0 -4.0 -5.2 -4.5 -4.8 -4.5 -3.4 -4.5 -4.1 -5.0 -7.2
S-  7  3.0  4.9  5.0  5.5  3.4  4.5  4.8  4.4  4.1  5.3  5.5  6.4  5.9  3.8  2.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.24-1.47-1.47-1.23-0.87-1.15 46.92 48.40-1.48 47.71 48.67-0.97   0.51
      9  4.82 4.86 4.32 4.94 4.94 5.11       42.19 4.73       42.70 5.01   0.28
     13 -5.02-5.09-5.50-5.02-4.61-4.80       52.13-5.21       52.32-4.61   0.60
      7  4.30 3.98 4.19 4.37 4.35 4.71       42.80 4.12       43.14 4.57   0.45
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.97  1.97                   2.05  1.95 1.05  1.78  1.80 0.99   0.95
      9         2.04                         2.10 0.97        1.69 1.05   1.08
     13         1.96                         2.04 1.00        1.92 0.93   0.93
      7         1.89                         1.67 1.23        1.66 1.07   0.87
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 48.67)(0.99) + 47.71      0.96(F  9 - 42.70)(1.05) + 47.71

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.927 0.891 0.881 0.842
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.8 53.5 58.9 56.9 55.8 55.7 54.7 56.9 58.9 54.7 55.8 56.3 57.6 54.0 52.0
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
S- 10 -1.6 -0.8 -0.3 -0.8 -0.1  0.0 -0.5 -1.0 -1.0 -0.5  0.2 -0.9  0.3 -0.9 -3.0
S-  9  4.1  5.3  5.2  4.2  3.8  4.8  4.7  4.8  3.8  4.7  6.0  5.8  6.0  4.9  3.2
S-  7  2.5  4.4  4.1  3.2  3.1  3.9  3.9  4.0  3.4  4.7  4.9  4.4  5.1  4.0  1.3
S- 13 -4.3 -4.4 -2.9 -4.3 -3.5 -3.2 -3.9 -4.0 -3.9 -3.3 -2.1 -4.1 -3.9 -4.5 -7.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.92-1.21-1.02-0.84-0.68-0.83 55.63 56.76-1.13 55.71 56.44-0.73   0.40
      9  4.47 4.57 3.97 4.50 4.55 4.91       51.18 4.45       50.97 4.74   0.29
      7  3.68 3.57 3.74 3.61 3.58 3.98       52.01 3.63       51.92 3.79   0.16
     13 -4.31-4.55-4.72-4.14-3.98-4.11       60.19-4.56       59.67-3.96   0.60
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.64  1.52                   1.66  1.54 1.08  1.89  1.62 1.17   1.09
      9         1.68                         1.70 0.97        1.83 1.03   1.06
      7         1.59                         1.43 1.16        1.74 1.09   0.94
     13         1.53                         1.59 1.04        1.57 1.20   1.16
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 56.44)(1.17) + 55.71      0.94(F  9 - 50.97)(1.03) + 55.71

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  12    0.926 0.910 0.909 0.893
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 62.2 63.8 66.2 65.8 65.2 63.7 63.6 63.6 66.9 62.7 65.9 65.3 64.8 64.7 59.0
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
S- 10 -1.0 -0.8 -0.5 -1.0 -0.2 -0.1 -1.0 -1.4 -1.0 -0.1  0.5 -1.1 -0.1 -0.6 -2.8
S- 13 -3.2 -2.8 -2.8 -4.2 -2.9 -2.9 -3.0 -4.2 -3.0 -2.5 -1.6 -3.0 -3.3 -3.3 -4.9
S-  9  4.2  4.3  5.0  4.0  4.1  4.4  5.1  4.2  3.2  4.7  5.9  4.7  5.1  4.5  2.8
S- 12 -4.8 -4.9 -4.5 -5.2 -3.9 -4.2 -5.3 -6.2 -5.0 -4.3 -3.0 -4.6 -5.3 -5.1 -7.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.82-0.97-0.73-0.90-0.73-0.73 64.74 65.60-0.86 64.22 64.96-0.74   0.12
     13 -3.59-3.97-3.76-3.62-3.36-3.09       68.64-3.90       67.41-3.19   0.71
      9  4.20 4.25 3.81 4.13 4.47 4.40       60.56 4.17       59.81 4.41   0.24
     12 -5.05-5.04-5.05-5.26-4.94-4.93       69.77-5.03       69.13-4.91   0.12
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.54  1.42                   1.43  1.39 1.03  1.91  1.58 1.21   1.17
     13         1.50                         1.36 1.06        1.66 1.15   1.09
      9         1.51                         1.56 0.92        1.75 1.09   1.19
     12         1.33                         1.16 1.23        1.56 1.22   0.99
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.96(F 10 - 64.96)(1.21) + 64.22      0.95(F 13 - 67.41)(1.15) + 64.22

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  11    0.923 0.900 0.882 0.881
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.5 70.3 70.8 72.5 73.6 71.2 70.5 70.1 73.8 70.1 74.1 70.5 71.7 71.1 66.9
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
S- 10 -0.8 -1.1 -1.0 -1.5 -0.4 -0.1 -1.3 -2.0 -1.0  0.1  0.2 -1.8 -0.5 -0.6 -2.7
S-  9  4.4  4.2  4.2  4.0  4.0  4.0  4.1  3.7  3.4  5.0  5.8  3.8  4.5  4.6  2.4
S- 13 -3.1 -2.8 -3.1 -4.3 -2.2 -1.7 -2.4 -4.4 -2.1 -2.0 -2.1 -3.1 -2.6 -3.6 -4.6
S- 11  2.4  2.6  2.2  1.7  2.5  3.3  3.3  1.5  2.8  3.3  3.7  2.5  2.9  2.0  0.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.01-1.02-0.95-1.14-0.99-0.91 71.14 72.15-1.00 71.18 72.15-0.97   0.03
      9  3.88 3.94 3.59 3.65 4.12 4.21       67.31 3.83       67.04 4.14   0.30
     13 -3.18-3.55-3.11-3.21-3.06-2.86       74.61-3.47       74.11-2.94   0.53
     11  2.06 1.76 1.87 1.95 2.31 2.54       69.39 1.75       68.69 2.49   0.74
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.49  1.30                   1.21  1.15 1.05  1.74  1.40 1.25   1.19
      9         1.42                         1.45 0.83        1.53 1.14   1.37
     13         1.48                         1.32 0.92        1.49 1.17   1.27
     11         1.47                         1.43 0.85        1.45 1.20   1.41
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 72.15)(1.25) + 71.18      0.95(F  9 - 67.04)(1.14) + 71.18

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  11  13    0.904 0.858 0.823 0.816
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.0 74.2 73.3 75.2 77.2 76.0 74.4 73.3 75.8 73.9 77.5 74.5 75.9 73.6 71.7
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
S- 10 -0.1 -0.9 -1.1 -1.4 -0.4  0.0 -1.5 -2.5 -0.9 -0.1  0.3 -1.7 -0.6 -1.2 -2.3
S-  9  4.6  3.7  4.2  4.2  4.5  3.9  3.7  3.0  3.9  5.3  5.3  3.3  3.6  3.8  2.5
S- 11  3.2  2.5  2.1  1.6  3.5  3.4  2.9  1.1  3.2  3.7  3.6  2.4  2.9  2.1  1.0
S- 13 -2.1 -2.3 -3.0 -4.0 -1.9 -1.4 -2.3 -4.9 -1.7 -1.9 -1.9 -2.5 -1.9 -3.2 -3.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.10-1.10-1.25-1.22-0.92-0.94 74.28 75.44-1.16 74.83 75.81-0.97   0.19
      9  3.84 3.85 3.53 3.76 4.11 3.96       70.51 3.77       70.87 3.96   0.20
     11  2.24 1.87 2.11 2.25 2.40 2.70       72.39 1.89       72.21 2.62   0.73
     13 -2.85-3.28-2.84-2.79-2.77-2.42       77.48-3.20       77.42-2.59   0.61
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.31  1.07                   1.07  0.93 1.15  1.54  1.08 1.42   1.24
      9         1.17                         1.06 1.01        1.25 1.23   1.22
     11         1.21                         1.17 0.91        1.06 1.45   1.58
     13         1.24                         1.16 0.92        1.16 1.33   1.44
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.95(F 10 - 75.81)(1.42) + 74.83      0.93(F  9 - 70.87)(1.23) + 74.83

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12  13    0.926 0.873 0.864 0.861
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.9 71.3 72.3 73.4 75.6 74.5 72.4 72.1 74.6 73.3 76.5 72.1 74.2 70.9 71.0
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
S- 10 -0.5 -1.3 -1.2 -1.5 -0.6 -0.1 -1.6 -2.2 -0.7 -0.6  0.1 -1.5 -0.9 -2.2 -2.5
S-  9  4.7  3.8  3.8  3.6  4.8  3.8  3.4  3.0  4.4  5.0  5.3  3.8  3.8  3.3  3.2
S- 12 -3.4 -4.5 -4.4 -5.3 -3.3 -3.2 -4.7 -6.2 -3.4 -4.5 -2.8 -4.2 -3.5 -5.8 -5.9
S- 13 -2.3 -2.8 -2.3 -3.8 -2.0 -1.6 -2.5 -4.9 -1.6 -2.1 -1.9 -2.3 -2.4 -4.2 -4.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.22-1.26-1.42-1.25-0.98-1.19 73.01 74.33-1.32 73.27 74.43-1.16   0.16
      9  3.86 3.75 3.54 3.97 3.99 4.11       69.36 3.65       69.30 3.97   0.32
     12 -4.22-4.14-4.38-4.09-4.22-4.31       77.28-4.27       77.61-4.33  -0.06
     13 -2.88-3.21-3.03-2.71-2.70-2.68       76.22-3.21       76.00-2.73   0.48
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.50  1.24                   1.21  1.12 1.09  1.66  1.08 1.54   1.41
      9         1.38                         1.36 0.90        1.21 1.38   1.54
     12         1.09                         0.92 1.31        0.97 1.72   1.31
     13         1.32                         1.12 1.08        1.23 1.35   1.24
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 74.43)(1.54) + 73.27      0.93(F  9 - 69.30)(1.38) + 73.27

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  11    0.892 0.884 0.877 0.872
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.2 68.7 67.4 66.8 66.4 65.5 66.6 66.5 68.2 66.0 68.4 65.4 67.9 64.7 64.3
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
S- 10 -0.8 -0.6 -1.5 -1.8 -0.8 -0.7 -1.5 -2.0 -0.2 -0.2 -0.2 -1.0 -1.2 -2.6 -2.8
S-  9  4.5  4.4  3.7  3.5  4.5  4.1  4.0  3.4  4.8  5.0  5.1  4.1  3.7  2.6  3.1
S- 13 -2.5 -2.4 -2.9 -3.7 -2.5 -2.8 -2.7 -4.6 -1.4 -1.9 -2.1 -2.5 -2.7 -4.0 -4.8
S- 11  2.5  2.5  1.8  1.0  2.9  2.4  2.5  1.2  3.0  2.9  3.4  2.0  2.3  0.6  0.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.30-1.42-1.49-1.39-1.01-1.17 66.87 68.22-1.35 66.73 67.92-1.19   0.16
      9  3.93 3.77 3.63 4.10 4.12 4.05       63.15 3.72       62.70 4.03   0.31
     13 -3.07-3.49-3.21-2.93-2.88-2.77       70.25-3.38       69.62-2.89   0.48
     11  1.86 1.42 1.72 2.05 2.11 2.08       65.38 1.48       64.65 2.08   0.59
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.57  1.42                   1.56  1.31 1.19  1.35  1.07 1.26   1.06
      9         1.50                         1.33 1.17        1.10 1.23   1.05
     13         1.44                         1.41 1.11        1.10 1.22   1.10
     11         1.43                         1.27 1.23        1.04 1.30   1.05
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.94(F 10 - 67.92)(1.26) + 66.73      0.94(F  9 - 62.70)(1.23) + 66.73

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13  11    0.926 0.904 0.896 0.884
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 58.1 58.9 61.1 58.5 57.2 55.2 57.8 59.2 58.7 57.7 58.5 58.2 56.3 54.1 54.4
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
S-  9  4.4  4.9  3.6  3.7  4.4  4.1  4.4  4.0  5.2  4.8  4.8  4.0  4.3  3.0  3.0
S- 10 -1.4 -0.7 -2.0 -2.2 -1.3 -1.3 -1.9 -1.5 -0.5 -0.8 -1.6 -1.2 -1.9 -3.2 -3.5
S- 13 -2.9 -2.7 -3.9 -4.6 -2.7 -3.7 -3.3 -3.7 -1.7 -2.5 -3.0 -2.6 -3.5 -4.9 -5.1
S- 11  2.2  2.3  1.1 -0.1  2.7  1.5  2.5  2.0  2.7  2.6  2.6  2.0  2.2  0.0  0.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.06 4.04 3.81 4.08 4.25 4.15 57.69 53.73 3.96 57.58 53.41 4.17   0.21
     10 -1.65-1.72-1.64-1.77-1.36-1.83       59.27-1.58       59.25-1.67  -0.09
     13 -3.51-3.77-3.53-3.59-3.28-3.32       61.38-3.69       60.96-3.37   0.31
     11  1.66 1.52 1.58 1.59 1.87 1.77       56.22 1.47       55.81 1.77   0.30
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.72  1.66                   1.11  0.90 1.23  1.83  1.63 1.12   0.91
     10         1.52                         0.78 1.42        1.55 1.18   0.83
     13         1.52                         0.79 1.40        1.60 1.14   0.81
     11         1.62                         0.81 1.37        1.72 1.06   0.78
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.96(F  9 - 53.41)(1.12) + 57.58      0.95(F 10 - 59.25)(1.18) + 57.58

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13  11    0.950 0.941 0.940 0.931
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 46.8 52.8 50.1 48.5 47.7 45.6 44.9 51.3 49.5 48.1 47.5 50.8 46.0 45.5 44.8
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
S-  9  4.6  5.1  4.3  4.0  4.2  4.4  5.6  4.5  5.1  5.3  4.6  4.4  4.9  2.8  2.6
S- 10 -1.9 -0.5 -2.4 -2.6 -1.3 -1.5 -1.6 -1.9 -1.2 -1.0 -1.9 -1.3 -1.6 -3.2 -3.7
S- 13 -4.0 -2.7 -4.7 -4.9 -3.1 -4.0 -4.4 -3.5 -2.9 -2.6 -3.3 -2.7 -3.7 -5.0 -5.1
S- 11  1.5  2.4  0.9 -0.2  1.7  1.7  2.2  2.1  2.4  2.8  1.9  1.8  2.1 -0.4  0.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.27 4.41 4.08 4.13 4.49 4.24 47.59 43.22 4.38 47.99 43.56 4.42   0.05
     10 -1.89-1.79-1.96-2.11-1.62-1.99       49.29-1.70       49.82-1.83  -0.14
     13 -3.99-4.13-4.21-4.05-3.84-3.60       51.66-4.07       51.75-3.76   0.31
     11  1.36 1.40 1.15 1.29 1.50 1.53       46.20 1.39       46.46 1.52   0.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.03  2.15                   1.25  1.54 0.81  2.40  2.26 1.06   1.30
     10         1.96                         1.43 0.88        2.11 1.14   1.29
     13         1.84                         1.31 0.95        2.05 1.17   1.22
     11         2.00                         1.44 0.87        2.26 1.06   1.22
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.97(F  9 - 43.56)(1.06) + 47.99      0.97(F 10 - 49.82)(1.14) + 47.99

Station#1871  LYNCHBURG/MUNICIPAL , va  4512002    lat/lon 79.20   37.33     0M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  11    0.946 0.943 0.934 0.929
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.4 41.7 41.8 40.0 40.7 42.2 40.0 44.4 42.8 42.6 39.0 44.8 37.5 38.2 38.2
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
S- 10 -1.7 -0.9 -2.4 -2.5 -1.3 -1.2 -1.7 -1.6 -1.7 -1.7 -2.2 -1.6 -1.7 -3.5 -5.3
S-  9  5.2  5.9  5.1  4.1  4.3  4.1  5.7  4.9  5.7  4.6  5.3  4.9  4.9  3.1  0.9
S- 13 -4.8 -3.4 -4.7 -5.5 -3.6 -4.2 -4.8 -3.6 -3.6 -3.5 -4.2 -3.0 -4.3 -6.4 -6.6
S- 11  1.1  2.8  1.6 -0.9  1.3  1.0  1.9  1.4  2.0  1.3  1.5  2.0  1.0 -1.0 -1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.14-1.80-2.22-2.54-1.75-2.53 40.23 42.12-1.89 40.82 42.90-2.08  -0.19
      9  4.57 4.89 4.50 4.40 4.73 4.20       35.43 4.80       36.24 4.58  -0.23
     13 -4.77-4.86-4.98-5.05-4.36-4.51       45.11-4.88       45.23-4.41   0.47
     11  0.86 1.06 0.59 0.74 1.14 0.75       39.26 0.97       39.78 1.04   0.06
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.44  2.36                   1.68  1.90 0.89  2.23  1.95 1.14   1.29
      9         2.64                         2.20 0.77        2.10 1.06   1.38
     13         2.24                         1.95 0.86        1.65 1.35   1.56
     11         2.43                         2.14 0.79        1.87 1.19   1.52
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 42.90)(1.14) + 40.82      0.97(F  9 - 36.24)(1.06) + 40.82

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 30.87 32.40 38.32 48.00 58.00 66.31 69.87 68.81 63.55 52.34 41.61 33.65
1952 33.05 35.03 40.69 48.38 59.26 67.58 71.84 69.33 60.94 52.14 42.61 37.23
1953 34.61 36.83 41.50 49.94 59.10 67.54 70.91 69.73 63.48 54.07 44.05 35.12
1954 32.30 34.46 42.52 49.27 58.83 65.11 69.76 68.60 63.58 53.51 42.02 32.71
1955 30.41 33.54 41.52 50.81 58.87 67.04 71.50 71.30 64.01 53.10 41.36 32.12
1956 29.97 33.65 40.75 48.99 58.78 65.86 70.26 69.16 65.30 55.98 48.67 38.73
1957 36.71 35.97 44.64 52.78 62.62 68.77 71.25 70.01 62.52 53.90 43.82 36.21
1958 29.87 29.55 37.69 49.45 59.81 67.00 70.27 69.96 63.55 55.58 43.06 34.49
1959 30.61 35.20 44.11 53.76 63.40 69.11 72.40 71.80 66.65 55.85 45.63 37.67
1960 34.28 31.45 39.11 47.85 61.06 65.78 70.83 69.78 64.22 55.48 43.03 33.38
1961 29.34 34.43 41.43 48.61 57.03 65.73 70.90 71.13 65.70 56.63 44.22 35.39
1962 30.85 32.89 39.96 50.99 61.53 67.67 69.89 67.74 63.23 53.07 41.52 32.06
1963 27.51 33.09 41.34 52.58 60.80 67.51 70.69 68.58 64.41 56.23 43.89 34.49
1964 29.19 34.70 40.27 51.48 61.25 69.36 71.33 69.51 62.00 54.81 44.71 37.47
1965 32.63 33.16 39.78 50.43 60.56 68.24 70.52 70.69 63.91 54.35 43.73 34.65
1966 29.67 32.08 39.33 49.68 59.12 68.92 73.40 70.59 62.33 52.87 42.52 37.39
1967 32.26 35.34 40.81 49.35 59.27 65.32 70.04 67.19 60.90 50.72 41.92 33.43
1968 29.95 33.36 42.21 51.94 60.31 66.75 71.71 70.18 63.92 54.33 42.25 32.36
1969 27.17 29.12 38.54 49.49 60.99 67.24 70.10 68.27 61.75 51.75 39.56 29.82
1970 26.28 28.70 37.45 48.31 59.74 67.14 70.43 70.62 65.06 55.23 43.50 33.32
1971 29.30 29.80 37.92 46.52 57.92 65.42 69.63 68.36 63.87 54.78 46.19 37.67
1972 33.23 32.40 37.71 48.16 56.91 64.50 67.84 68.29 60.50 50.23 41.04 35.44
1973 32.24 34.59 40.41 49.45 58.22 65.91 71.06 69.51 63.94 55.09 44.21 37.77
1974 32.75 35.30 40.36 49.55 57.18 63.80 67.93 67.41 60.49 51.93 43.20 37.30
1975 33.37 33.58 37.49 47.39 58.00 66.65 69.78 67.11 62.04 54.09 44.71 34.91
1976 31.84 36.16 45.15 51.23 59.49 64.97 68.91 66.88 59.33 48.95 37.51 27.47
1977 25.38 31.26 43.85 54.15 61.13 67.88 70.94 70.91 62.81 53.25 41.35 32.18
1978 24.76 25.92 34.75 46.73 58.18 65.11 70.10 69.26 63.00 53.92 43.85 34.79
1979 26.55 28.95 37.00 50.10 57.68 64.76 68.01 67.42 61.19 53.54 44.37 36.54
1980 29.90 29.81 37.16 48.66 59.17 67.04 71.10 71.46 63.72 52.61 40.65 31.14
1981 28.50 29.80 40.50 48.98 60.36 66.01 69.69 67.22 59.94 51.17 40.51 31.16
1982 27.38 30.22 38.98 49.63 58.78 66.98 68.46 67.76 61.50 53.76 45.65 37.49
1983 33.25 33.59 39.54 48.20 57.73 66.82 72.30 71.40 64.30 54.00 41.10 31.69
1984 29.25 30.87 38.33 45.97 58.69 66.18 70.24 67.55 63.73 53.83 46.99 35.03
1985 31.59 31.74 42.57 52.77 61.01 66.70 69.34 69.24 63.45 56.20 43.93 35.31
1986 29.27 32.84 40.04 49.92 60.13 68.28 71.53 69.54 63.02 53.43 43.12 33.90
1987 30.53 33.20 39.95 50.08 60.08 69.56 73.41 71.50 62.11 52.92 43.01 35.03
1988 30.29 32.13 40.24 49.88 58.73 67.83 72.76 71.14 61.71 51.34 41.33 36.92
1989 32.93 34.93 39.57 48.29 58.87 66.61 70.41 68.52 62.97 54.03 39.73 33.96
1990 32.54 40.09 44.20 50.51 59.04 66.29 70.43 68.66 63.14 55.27 46.48 37.80
1991 34.30 36.13 43.56 53.90 63.42 71.03 73.47 71.61 64.75 54.17 44.68 36.98
1992 34.30 34.26 40.19 47.39 56.98 64.62 68.64 67.66 60.42 51.70 41.35 35.24
1993 30.59 31.82 37.06 48.68 60.02 68.95 72.74 71.36 63.48 52.92 41.65 31.69
1994 27.66 30.04 41.23 49.81 61.25 67.19 71.45 68.66 61.82 54.56 46.20 38.85
1995 32.27 33.43 39.25 49.67 58.28 66.74 71.50 70.10 64.17 52.18 40.27 30.35
1996 27.68 29.62 37.39 46.73 58.79 65.26 69.45 67.34 61.73 50.64 41.51 33.15
1997 32.80 34.45 40.09 46.35 55.29 64.23 69.50 68.37 62.16 51.89 41.71 33.48

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.920 0.919 0.910 0.910
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 33.3 29.3 31.6 29.3 30.5 30.3 32.9 32.5 34.3 34.3 30.6 27.7 32.3 27.7 32.8
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
S- 10 -7.4 -9.3 -8.7 -9.7 -7.8 -7.8 -7.7 -8.4 -9.2 -8.4 -9.8 -9.9 -9.2 -9.5 -9.0
S-  9 -2.0 -2.1 -1.3 -2.2 -1.9 -1.9 -1.6 -1.2 -2.0 -1.4 -3.3 -2.6 -1.9 -2.9 -2.6
S-  7 -3.0 -3.5 -3.2 -3.1 -2.6 -2.5 -2.1 -2.0 -3.1 -2.1 -3.8 -2.7 -3.5 -3.7 -3.9
S- 38 -4.8 -3.2 -2.0 -4.2 -4.5 -3.6 -3.7 -3.3 -3.4 -3.9 -4.9 -4.4 -3.9 -4.8 -4.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -8.60-8.10-7.96-9.37-8.49-9.28 31.48 39.40-7.92 31.28 40.07-8.79  -0.88
      9 -1.71-1.50-0.90-2.12-1.83-2.41       32.62-1.14       33.35-2.06  -0.92
      7 -2.71-2.48-1.88-3.21-2.88-3.26       33.45-1.97       34.28-2.99  -1.02
     38 -3.72-3.81-2.95-3.88-3.83-4.27       34.82-3.34       35.24-3.95  -0.62
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.61  2.48                   2.35  2.49 0.94  2.10  1.82 1.15   1.22
      9         2.89                         2.99 0.78        1.85 1.13   1.45
      7         2.52                         2.68 0.87        2.00 1.05   1.20
     38         3.07                         3.13 0.75        2.04 1.03   1.37
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 40.07)(1.15) + 31.28      0.96(F  9 - 33.35)(1.13) + 31.28

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.881 0.877 0.876 0.873
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 33.6 30.9 31.7 32.8 33.2 32.1 34.9 40.1 36.1 34.3 31.8 30.0 33.4 29.6 34.5
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10 -8.2 -9.8 -9.2 -9.7 -7.0 -7.7 -8.6 -8.1 -8.8 -9.4 -9.8-10.7 -9.5 -9.8 -9.8
S-  9 -2.5 -3.0 -1.7 -3.0 -2.1 -1.8 -3.2 -1.9 -1.9 -2.8 -3.4 -3.1 -2.6 -3.2 -3.4
S-  7 -3.5 -3.4 -3.9 -3.4 -2.4 -2.5 -2.4 -2.0 -2.8 -2.8 -3.2 -2.2 -4.0 -4.1 -4.0
S- 38 -5.2 -5.0 -3.1 -5.8 -5.6 -3.8 -5.5 -4.2 -3.9 -5.4 -5.3 -4.9 -4.8 -5.1 -5.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -8.80-8.51-7.68-9.64-8.74-9.68 33.76 41.89-8.13 33.28 42.35-9.07  -0.94
      9 -2.16-1.83-1.04-2.72-2.52-2.92       35.21-1.45       35.92-2.65  -1.19
      7 -2.78-2.66-1.55-3.47-3.10-3.29       35.81-2.05       36.37-3.10  -1.05
     38 -4.44-4.35-3.28-4.80-4.94-4.98       37.64-3.88       38.13-4.86  -0.97
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.59  2.45                   1.76  2.14 0.82  2.52  2.25 1.12   1.37
      9         2.79                         2.46 0.72        2.36 1.07   1.49
      7         2.26                         1.94 0.91        2.33 1.08   1.19
     38         3.03                         2.71 0.65        2.54 0.99   1.53
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.94(F 10 - 42.35)(1.12) + 33.28      0.94(F  9 - 35.92)(1.07) + 33.28

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.851 0.835 0.817 0.815
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.5 38.3 42.6 40.0 40.0 40.2 39.6 44.2 43.6 40.2 37.1 41.2 39.3 37.4 40.1
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd  8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0
S-  7 -3.3 -3.7 -2.7 -3.1 -2.6 -2.4 -2.7 -2.3 -2.4 -2.5 -3.0 -1.8 -3.3 -3.9 -4.4
S- 10 -7.8 -9.3 -7.8 -9.5 -6.4 -7.3 -8.4 -8.1 -7.7 -8.9 -9.1 -9.0 -9.3 -9.0 -9.3
S-  9 -2.3 -3.1 -1.1 -4.1 -1.9 -1.7 -2.6 -2.0 -1.6 -3.0 -2.8 -2.3 -2.9 -2.5 -3.3
S-  8  1.3  1.9  3.3  1.3  1.1  3.1  2.9  2.8  2.5  2.2  1.8  4.4  2.6  1.6  1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -2.54-2.33-1.40-3.15-2.92-3.03 40.91 42.80-1.89 40.21 43.14-2.93  -1.03
     10 -8.08-7.78-7.07-8.74-8.13-8.90       48.40-7.49       48.67-8.46  -0.97
      9 -2.02-1.45-1.28-2.57-2.33-2.64       42.19-1.28       42.70-2.49  -1.20
      8  2.73 2.85 3.64 2.48 2.28 2.30       37.55 3.36       37.97 2.25  -1.12
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.25  1.89                   1.84  1.67 1.10  1.95  1.66 1.17   1.06
     10         1.97                         1.95 0.94        1.80 1.09   1.15
      9         2.04                         2.10 0.88        1.69 1.15   1.32
      8         2.04                         1.85 1.00        1.74 1.12   1.13
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.92(F  7 - 43.14)(1.17) + 40.21      0.91(F 10 - 48.67)(1.09) + 40.21

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9   7   6  10    0.816 0.814 0.810 0.808
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.2 46.0 52.8 49.9 50.1 49.9 48.3 50.5 53.9 47.4 48.7 49.8 49.7 46.7 46.3
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
S-  9 -1.5 -2.3 -0.9 -2.8 -1.9 -1.1 -1.7 -1.6 -1.2 -2.6 -1.1 -0.7 -1.9 -2.5 -2.4
S-  7 -3.1 -3.2 -2.0 -3.8 -2.7 -2.0 -2.6 -2.4 -1.6 -2.6 -2.2 -2.1 -2.8 -3.3 -4.4
S-  6 -0.2  0.8  0.0 -2.0 -1.8  0.4  0.3  0.3 -0.6 -1.4  0.4  1.4  0.5  0.1 -0.9
S- 10 -7.2 -8.3 -6.4 -7.8 -5.9 -5.8 -6.9 -7.4 -6.0 -7.7 -7.0 -7.4 -7.6 -8.2 -8.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9 -1.48-1.22-0.79-1.98-1.71-1.78 50.22 51.18-0.96 49.21 50.97-1.76  -0.80
      7 -2.27-2.22-1.02-2.86-2.68-2.71       52.01-1.78       51.92-2.71  -0.93
      6  0.24 0.54 1.08-0.18-0.27-0.09       49.44 0.78       49.40-0.19  -0.97
     10 -6.87-7.00-5.78-7.31-6.94-7.52       56.76-6.54       56.44-7.23  -0.68
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.96  1.68                   1.77  1.70 1.04  2.14  1.83 1.17   1.13
      7         1.59                         1.43 1.23        1.74 1.24   1.00
      6         1.97                         1.60 1.10        2.40 0.89   0.81
     10         1.52                         1.54 1.15        1.62 1.33   1.15
Suggested regression eqns from two most closely related CDs (  9 and   7): 
          0.90(F  9 - 50.97)(1.17) + 49.21      0.90(F  7 - 51.92)(1.24) + 49.21

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9  10   8    0.813 0.791 0.785 0.767
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.7 58.7 61.0 60.1 60.1 58.7 58.9 59.0 63.4 57.0 60.0 61.3 58.3 58.8 55.3
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7
S-  7 -2.4 -2.2 -1.8 -3.0 -2.3 -2.2 -2.3 -2.2 -1.2 -2.0 -1.7 -1.8 -2.7 -2.5 -3.8
S-  9 -0.2 -0.8 -0.2 -1.6 -1.0 -0.6  0.4 -0.3 -0.3 -1.0  0.0  0.6 -1.5 -1.5 -0.9
S- 10 -5.4 -5.9 -5.7 -6.6 -5.3 -5.0 -5.7 -6.0 -4.5 -5.8 -5.4 -5.1 -6.7 -6.5 -6.4
S-  8  2.6  3.0  3.4  1.6  1.2  2.1  3.2  2.4  2.3  1.6  2.5  3.6  1.9  1.4  0.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -2.06-2.26-0.98-2.61-2.25-2.26 60.06 61.88-1.82 59.22 61.50-2.28  -0.46
      9 -0.60-0.90 0.06-0.98-0.57-0.63       60.56-0.50       59.81-0.59  -0.08
     10 -5.62-6.12-4.48-6.02-5.77-5.76       65.60-5.54       64.96-5.74  -0.20
      8  2.38 2.08 3.26 1.95 2.49 2.01       57.52 2.54       56.97 2.25  -0.29
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.67  1.33                   1.69  1.27 1.32  1.85  1.46 1.27   0.96
      9         1.51                         1.56 1.08        1.75 1.06   0.98
     10         1.42                         1.39 1.21        1.58 1.17   0.97
      8         1.42                         1.45 1.16        1.62 1.14   0.99
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.90(F  7 - 61.50)(1.27) + 59.22      0.89(F  9 - 59.81)(1.06) + 59.22

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6   8    0.859 0.812 0.777 0.773
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.8 66.2 66.7 68.3 69.6 67.8 66.6 66.3 71.0 64.6 68.9 67.2 66.7 65.3 64.2
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd  6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7
cd  8 63.7 62.7 63.3 65.5 66.8 65.6 64.3 63.5 68.5 62.7 65.7 64.8 65.5 64.4 63.0
S-  7 -2.1 -2.3 -2.4 -2.8 -1.6 -2.2 -2.5 -2.6 -1.2 -2.2 -1.6 -2.6 -2.8 -2.8 -3.3
S-  9  0.7  0.0  0.1 -0.2 -0.1  0.7  0.2 -0.1  0.6 -0.5  0.7  0.5 -0.4 -1.3 -0.3
S-  6  0.1  0.5  0.6 -0.2 -0.3 -0.5  0.5  0.8 -0.3 -0.3  1.4  0.6 -0.7 -0.9 -0.5
S-  8  3.1  3.5  3.4  2.8  2.8  2.2  2.3  2.8  2.6  1.9  3.2  2.4  1.3  0.8  1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -2.33-2.54-1.47-2.90-2.39-2.35 67.24 69.39-2.15 67.09 69.42-2.33  -0.18
      9 -0.12-0.57 0.64-0.59 0.01-0.09       67.31-0.07       67.04 0.04   0.11
      6 -0.22-0.59 0.52-0.92 0.03-0.09       67.47-0.23       67.03 0.06   0.29
      8  2.25 1.92 2.99 1.64 2.70 1.92       64.93 2.31       64.67 2.42   0.11
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.53  1.20                   1.25  1.07 1.17  1.77  1.38 1.28   1.09
      9         1.42                         1.45 0.86        1.53 1.15   1.34
      6         1.51                         1.55 0.81        1.77 1.00   1.23
      8         1.35                         1.36 0.92        1.57 1.12   1.22
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.93(F  7 - 69.42)(1.28) + 67.09      0.90(F  9 - 67.04)(1.15) + 67.09

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6   8    0.869 0.786 0.759 0.748
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.3 70.2 69.3 71.5 73.4 72.8 70.4 70.4 73.5 68.6 72.7 71.4 71.5 69.4 69.5
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
cd  8 69.2 67.7 66.3 67.6 69.8 70.3 68.5 67.9 70.6 66.0 69.6 69.1 71.1 68.8 67.8
S-  7 -2.0 -2.8 -2.7 -1.9 -1.2 -2.2 -2.8 -2.7 -1.2 -2.0 -1.6 -2.6 -2.9 -2.9 -2.6
S-  9  0.9 -0.2  0.2  0.5  0.7  0.7 -0.4  0.1  1.5  0.1  0.6  0.2 -0.9 -0.3  0.3
S-  6 -0.5 -0.5  0.4  0.7  1.0 -0.2 -0.3  0.6  0.5  0.7  0.8  0.4 -1.9 -1.0  0.0
S-  8  3.1  2.5  3.0  3.9  3.7  2.5  1.9  2.5  2.8  2.7  3.2  2.3  0.4  0.6  1.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -2.46-2.55-1.89-3.15-2.42-2.25 70.81 73.07-2.25 71.14 73.42-2.27  -0.02
      9  0.16-0.13 0.96-0.40 0.16 0.23       70.51 0.30       70.87 0.27  -0.03
      6 -0.18-0.59 0.54-0.77 0.01-0.06       70.99-0.18       71.09 0.05   0.23
      8  2.28 2.01 2.83 1.71 2.79 1.96       68.42 2.40       68.69 2.46   0.06
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.38  1.05                   0.73  0.92 0.80  1.51  1.18 1.28   1.60
      9         1.17                         1.06 0.69        1.25 1.21   1.75
      6         1.34                         1.30 0.56        1.57 0.96   1.71
      8         1.27                         1.27 0.58        1.43 1.06   1.84
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.93(F  7 - 73.42)(1.28) + 71.14      0.89(F  9 - 70.87)(1.21) + 71.14

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6  10    0.858 0.823 0.822 0.799
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.4 67.6 69.2 69.5 71.5 71.1 68.5 68.7 71.6 67.7 71.4 68.7 70.1 67.3 68.4
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
S-  7 -1.9 -2.8 -2.4 -2.2 -1.3 -1.8 -2.9 -2.6 -1.0 -2.4 -1.7 -2.5 -3.0 -3.3 -2.6
S-  9  1.2  0.1  0.8 -0.3  0.6  0.4 -0.5 -0.4  1.4 -0.6  0.2  0.3 -0.3 -0.3  0.6
S-  6 -0.3 -0.1  0.4 -0.5  1.0  0.0 -0.4  0.1  1.2  0.3  1.3  0.4 -0.5 -1.0  0.8
S- 10 -4.0 -5.0 -4.2 -5.3 -4.8 -3.5 -5.5 -5.6 -3.8 -6.2 -5.0 -5.0 -5.0 -5.8 -5.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -2.47-2.37-1.98-3.16-2.41-2.37 69.74 71.85-2.11 69.51 71.81-2.30  -0.19
      9  0.13 0.04 0.87-0.55 0.13 0.17       69.36 0.38       69.30 0.21  -0.17
      6  0.00-0.29 0.62-0.46-0.10 0.36       69.66 0.08       69.33 0.18   0.10
     10 -4.95-4.97-4.09-5.78-4.85-5.13       74.33-4.59       74.43-4.92  -0.33
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.45  1.19                   1.09  1.31 0.83  1.51  1.04 1.45   1.75
      9         1.38                         1.36 0.80        1.21 1.25   1.56
      6         1.46                         1.52 0.72        1.34 1.13   1.57
     10         1.24                         1.12 0.97        1.08 1.39   1.43
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.93(F  7 - 71.81)(1.45) + 69.51      0.91(F  9 - 69.30)(1.25) + 69.51

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    6   5   7   9    0.850 0.828 0.823 0.822
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.3 63.7 63.5 63.0 62.1 61.7 63.0 63.1 64.8 60.4 63.5 61.8 64.2 61.7 62.2
cd  6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1
cd  5 60.8 60.4 59.9 59.0 57.5 58.1 59.1 59.6 60.5 56.9 58.5 58.3 61.1 59.8 58.0
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
S-  6 -0.2  0.1  0.0 -0.6  0.9  0.5  1.0  0.7  1.0  0.4  1.6  0.3  0.0 -0.8  1.0
S-  5  3.5  3.4  3.5  4.0  4.6  3.6  3.9  3.6  4.2  3.5  5.0  3.5  3.1  1.9  4.1
S-  7 -2.1 -2.5 -2.5 -2.1 -1.6 -1.9 -2.4 -2.5 -1.0 -2.1 -1.5 -1.5 -2.7 -2.9 -2.1
S-  9  0.6 -0.6 -0.2 -0.2  0.2  0.3  0.4  0.0  1.3 -0.6  0.2  0.5  0.0 -0.4  1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      6  0.27 0.24 0.82-0.25 0.11 0.50 63.80 63.27 0.53 62.86 62.48 0.39  -0.15
      5  3.53 3.42 3.82 3.17 3.64 3.62       60.06 3.74       59.16 3.70  -0.04
      7 -2.19-1.91-1.63-3.07-2.29-1.96       65.38-1.58       64.95-2.08  -0.50
      9  0.15 0.34 0.90-0.70-0.04 0.30       63.15 0.65       62.70 0.17  -0.48
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      6   1.55  1.60                   1.37  1.42 0.96  1.14  1.29 0.89   0.92
      5         1.59                         1.54 0.89        1.21 0.95   1.06
      7         1.41                         1.37 1.00        1.22 0.94   0.94
      9         1.50                         1.33 1.03        1.10 1.04   1.01
Suggested regression eqns from two most closely related CDs (  6 and   5): 
          0.92(F  6 - 62.48)(0.89) + 62.86      0.91(F  5 - 59.16)(0.95) + 62.86

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    6   5   7   8    0.860 0.859 0.852 0.851
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 54.0 53.8 56.2 53.4 52.9 51.3 54.0 55.3 54.2 51.7 52.9 54.6 52.2 50.6 51.9
cd  6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3
cd  5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
S-  6 -0.2  0.7  0.4 -0.5  0.4  0.6  1.9  1.0  1.3 -0.1  1.3  0.6  1.2 -0.1  0.5
S-  5  3.3  3.8  4.5  4.0  4.1  3.1  4.7  4.0  4.3  3.4  4.7  3.6  3.4  2.5  3.5
S-  7 -2.5 -2.3 -2.4 -2.3 -1.8 -2.1 -1.8 -2.0 -1.5 -2.4 -2.2 -1.5 -3.0 -3.3 -2.8
S-  8  2.8  3.0  3.0  2.8  3.3  2.7  3.5  2.8  3.5  2.3  3.0  3.5  2.2  1.2  2.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      6  0.66 0.96 0.98 0.28 0.38 0.69 54.47 53.40 1.07 53.27 52.66 0.61  -0.46
      5  3.64 3.57 3.71 3.50 3.80 3.63       50.65 3.82       49.48 3.79  -0.03
      7 -2.15-1.77-1.62-2.79-2.24-2.40       55.94-1.47       55.53-2.25  -0.78
      8  2.80 3.08 3.08 2.34 2.86 2.57       51.17 3.30       50.48 2.80  -0.50
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      6   1.71  1.73                   1.40  1.18 1.19  1.48  1.48 1.00   0.84
      5         1.65                         1.17 1.20        1.17 1.26   1.05
      7         1.45                         1.11 1.27        1.28 1.16   0.92
      8         1.60                         1.18 1.19        1.16 1.27   1.07
Suggested regression eqns from two most closely related CDs (  6 and   5): 
          0.93(F  6 - 52.66)(1.00) + 53.27      0.93(F  5 - 49.48)(1.26) + 53.27

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38   7   6    0.899 0.893 0.891 0.885
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.1 47.0 43.9 43.1 43.0 41.3 39.7 46.5 44.7 41.3 41.7 46.2 40.3 41.5 41.7
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd  6 40.4 45.2 42.3 42.5 42.5 39.9 37.1 45.0 42.9 41.9 41.5 45.3 39.1 41.6 41.7
S-  9 -1.1 -0.7 -1.9 -1.4 -0.5  0.1  0.4 -0.2  0.2 -1.5 -1.2 -0.1 -0.8 -1.1 -0.5
S- 38 -3.2 -2.4 -3.5 -3.0 -2.4 -2.4 -1.6 -1.7 -1.9 -3.4 -2.5 -2.5 -2.3 -3.6 -2.7
S-  7 -3.6 -2.0 -2.9 -2.7 -2.0 -2.2 -1.8 -2.5 -1.8 -3.0 -3.0 -1.6 -3.2 -3.2 -3.5
S-  6  0.7  1.8  1.6  0.6  0.5  1.4  2.6  1.5  1.7 -0.5  0.2  0.9  1.1 -0.1  0.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9 -0.40 0.34-0.13-0.87-0.69-0.72 43.60 43.22 0.38 42.87 43.56-0.69  -1.07
     38 -2.47-1.84-2.22-2.93-2.75-2.71       45.35-1.76       45.48-2.61  -0.85
      7 -2.31-1.76-1.94-2.74-2.51-2.74       45.16-1.57       45.46-2.59  -1.02
      6  1.08 1.60 1.10 1.02 1.00 0.48       41.97 1.63       41.94 0.93  -0.69
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.14  2.15                   1.81  1.54 1.18  2.23  2.26 0.99   0.84
     38         2.17                         1.48 1.22        2.20 1.01   0.83
      7         1.92                         1.48 1.22        1.99 1.12   0.92
      6         2.22                         1.61 1.13        2.18 1.02   0.91
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.95(F  9 - 43.56)(0.99) + 42.87      0.94(F 38 - 45.48)(1.01) + 42.87

Station#1872  MOUNT WEATHER       , va  4585102    lat/lon 77.88   39.07    10M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  38  11    0.914 0.911 0.900 0.898
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 31.7 35.0 35.3 33.9 35.0 36.9 34.0 37.8 37.0 35.2 31.7 38.8 30.4 33.2 33.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
S-  9 -1.5 -0.8 -1.4 -2.0 -1.4 -1.1 -0.4 -1.7 -0.2 -2.8 -2.0 -1.0 -2.3 -2.0 -3.8
S- 10 -8.4 -7.5 -8.9 -8.6 -7.0 -6.5 -7.8 -8.2 -7.6 -9.0 -9.5 -7.5 -8.8 -8.6-10.0
S- 38 -2.7 -2.2 -2.7 -3.7 -3.6 -3.7 -2.5 -3.2 -2.1 -4.2 -3.2 -2.7 -3.9 -3.9 -6.0
S- 11 -5.6 -3.8 -4.8 -6.9 -4.4 -4.2 -4.2 -5.2 -3.9 -6.0 -5.8 -3.9 -6.2 -6.1 -6.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9 -1.09-0.51-0.63-1.28-1.30-2.00 35.02 35.43-0.41 34.63 36.24-1.62  -1.21
     10 -7.80-7.20-7.35-8.21-7.78-8.73       42.12-7.10       42.90-8.27  -1.17
     38 -2.96-2.66-2.51-2.92-3.24-3.70       37.37-2.35       37.97-3.35  -1.00
     11 -4.79-4.34-4.54-4.93-4.90-5.45       39.26-4.23       39.78-5.16  -0.93
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.54  2.64                   2.02  2.20 0.92  2.31  2.10 1.10   1.20
     10         2.36                         1.90 1.06        1.95 1.19   1.11
     38         2.70                         2.22 0.91        2.24 1.03   1.13
     11         2.43                         2.14 0.94        1.87 1.24   1.31
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.96(F  9 - 36.24)(1.10) + 34.63      0.95(F 10 - 42.90)(1.19) + 34.63

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 43.81 45.12 49.48 56.45 65.21 72.18 76.36 75.51 70.72 61.42 53.04 46.71
1952 44.93 45.50 50.21 57.94 68.20 75.39 79.08 76.90 69.21 60.34 50.78 46.77
1953 45.09 47.84 52.10 60.41 68.02 75.00 76.93 76.26 70.63 62.09 53.36 46.20
1954 44.60 45.66 52.15 57.79 66.74 72.45 77.15 76.56 72.06 62.79 51.99 43.15
1955 40.27 44.05 51.55 60.05 66.57 73.57 77.75 77.85 71.47 61.74 50.25 41.75
1956 40.17 43.71 50.22 56.30 65.35 72.71 77.12 75.65 70.51 61.76 55.58 47.56
1957 45.50 44.19 51.88 59.54 69.33 74.75 77.32 76.36 69.46 62.19 52.88 45.86
1958 40.25 39.18 46.10 55.98 65.42 73.40 77.14 76.78 69.93 62.54 51.33 44.03
1959 40.04 44.23 51.19 59.74 68.77 74.92 78.16 77.24 72.53 63.13 53.53 45.78
1960 42.64 40.74 48.04 56.96 69.11 73.80 77.73 76.88 71.50 62.41 50.28 41.25
1961 38.17 43.90 50.89 57.38 63.77 72.14 76.91 77.85 71.12 62.97 51.71 44.41
1962 40.41 41.19 47.09 56.00 65.93 72.16 74.86 73.45 68.93 60.23 49.57 41.26
1963 36.66 42.24 50.12 59.39 66.00 71.58 75.67 73.54 67.85 59.60 49.03 43.02
1964 39.07 43.96 48.30 57.04 65.36 72.68 75.38 74.17 67.58 60.98 52.90 46.81
1965 42.41 41.67 46.68 56.18 65.66 73.04 75.53 75.80 69.85 61.35 51.35 43.54
1966 39.33 40.84 47.16 55.32 63.20 71.05 74.84 74.28 67.96 59.84 50.35 45.80
1967 42.40 44.56 48.67 55.58 63.42 69.53 74.24 72.72 66.80 57.04 49.58 41.51
1968 37.68 39.72 46.53 56.54 64.82 72.46 77.85 76.72 71.67 62.44 52.40 44.13
1969 39.89 41.02 48.22 57.24 68.06 74.51 77.48 75.54 69.81 60.81 50.72 41.18
1970 37.94 39.27 47.01 56.26 66.33 73.04 76.57 76.50 72.06 63.32 54.12 45.65
1971 43.33 43.29 49.21 55.92 65.63 72.69 76.31 75.41 71.87 64.14 57.18 50.32
1972 47.33 46.24 49.57 56.28 63.44 70.51 74.67 75.11 68.91 60.83 53.31 47.01
1973 43.22 44.26 50.36 59.18 67.39 73.97 77.87 77.25 72.49 64.21 54.64 49.39
1974 46.14 48.50 52.62 60.19 66.77 72.61 76.19 75.71 69.09 61.13 52.67 48.39
1975 45.76 46.25 48.52 56.15 66.02 74.59 78.39 76.85 71.73 63.76 54.05 45.78
1976 43.83 47.32 55.11 60.54 68.00 73.43 76.64 75.09 68.18 58.20 48.35 38.73
1977 37.20 41.76 52.95 61.58 68.13 74.61 78.91 79.57 72.54 63.84 52.91 45.01
1978 37.87 38.75 45.57 56.27 65.63 71.90 76.90 76.62 71.45 63.28 53.96 46.76
1979 39.51 40.82 47.13 57.92 65.04 71.39 75.38 76.18 70.54 63.16 53.85 47.08
1980 40.07 40.61 46.72 57.61 66.75 74.16 78.56 79.30 72.41 62.11 50.87 41.53
1981 39.21 40.27 49.96 57.14 68.11 74.31 77.71 75.24 68.42 60.29 50.38 42.25
1982 39.35 42.06 48.72 57.73 65.91 73.75 75.75 74.66 68.48 61.50 54.43 47.68
1983 43.30 44.08 49.35 57.49 64.80 72.98 77.45 77.39 71.46 62.69 52.29 43.13
1984 41.13 42.42 49.17 56.20 66.49 73.48 77.06 75.20 71.90 62.46 55.94 45.16
1985 42.09 42.40 51.65 60.85 68.35 73.74 76.56 76.29 72.14 66.51 55.73 46.75
1986 40.80 43.79 49.90 58.22 66.95 75.22 78.28 77.07 71.43 64.22 54.99 46.31
1987 41.09 42.03 47.10 56.78 66.60 75.82 79.63 78.75 70.08 61.66 52.26 45.77
1988 41.90 43.10 49.55 57.24 65.27 73.12 78.19 77.18 69.36 60.48 51.13 47.24
1989 43.79 46.43 50.19 57.38 66.82 74.36 78.43 76.93 71.37 63.23 50.16 45.00
1990 43.86 50.21 54.08 59.50 66.92 74.21 78.03 76.73 71.78 64.14 57.15 49.60
1991 46.68 47.43 53.57 62.38 70.23 77.01 79.24 77.96 71.19 62.28 54.06 47.58
1992 45.06 45.46 50.67 56.41 64.15 72.03 76.50 76.99 69.55 62.30 52.70 47.48
1993 42.73 43.48 47.88 57.51 67.27 75.98 79.48 79.02 71.53 63.10 52.03 43.69
1994 40.33 43.87 53.49 60.39 69.65 75.75 80.02 77.69 70.61 63.91 56.49 50.79
1995 45.67 46.22 51.40 59.99 68.02 75.64 79.74 78.57 72.58 62.04 51.29 42.25
1996 39.95 41.65 48.38 56.29 66.37 72.66 75.90 74.98 69.62 60.20 51.70 44.79
1997 44.60 46.23 50.76 56.68 63.52 71.68 75.84 75.81 70.10 61.44 51.94 44.48

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.959 0.927 0.918 0.915
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.3 41.1 42.1 40.8 41.1 41.9 43.8 43.9 46.7 45.1 42.7 40.3 45.7 40.0 44.6
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 12 46.4 45.2 46.5 45.9 45.0 44.3 47.6 47.7 49.7 48.6 46.9 44.9 47.2 44.5 48.3
S- 10  2.6  2.6  1.8  1.8  2.7  3.8  3.1  2.9  3.2  2.3  2.4  2.8  4.2  2.7  2.8
S-  9  8.1  9.8  9.2  9.3  8.7  9.7  9.3 10.2 10.4  9.3  8.8 10.0 11.5  9.3  9.2
S-  7  7.1  8.4  7.2  8.5  7.9  9.1  8.8  9.3  9.3  8.7  8.4 10.0  9.9  8.6  7.9
S- 12 -3.1 -4.1 -4.4 -5.1 -3.9 -2.4 -3.8 -3.8 -3.0 -3.6 -4.2 -4.5 -1.5 -4.6 -3.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.57 2.36 1.96 3.12 2.61 2.92 41.60 39.40 2.21 42.87 40.07 2.79   0.59
      9  9.46 8.96 9.0110.37 9.26 9.79       32.62 8.98       33.35 9.52   0.54
      7  8.46 7.98 8.03 9.29 8.22 8.94       33.45 8.15       34.28 8.59   0.44
     12 -3.98-4.00-4.62-3.65-3.94-3.57       45.96-4.36       46.58-3.72   0.65
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.75  2.48                   2.66  2.49 1.07  1.99  1.82 1.09   1.02
      9         2.89                         2.99 0.89        1.85 1.07   1.21
      7         2.52                         2.68 0.99        2.00 0.99   1.00
     12         2.62                         2.72 0.98        1.56 1.27   1.30
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 40.07)(1.09) + 42.87      0.96(F  9 - 33.35)(1.07) + 42.87

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.964 0.928 0.919 0.916
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.1 42.4 42.4 43.8 42.0 43.1 46.4 50.2 47.4 45.5 43.5 43.9 46.2 41.7 46.2
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
S- 10  2.3  1.8  1.5  1.3  1.8  3.3  2.9  2.0  2.5  1.8  1.9  3.1  3.3  2.2  2.0
S- 12 -3.0 -5.3 -5.1 -5.7 -4.4 -2.7 -4.4 -4.3 -3.7 -4.3 -4.9 -5.2 -2.6 -5.2 -5.7
S-  9  8.0  8.6  9.0  7.9  6.7  9.1  8.3  8.2  9.4  8.4  8.2 10.7 10.2  8.8  8.3
S- 13 -0.3 -2.7 -2.3 -2.9 -1.9  0.0 -1.2 -1.2 -0.6 -1.7 -1.3 -1.4  0.2 -1.7 -2.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.96 1.70 1.47 2.37 1.99 2.40 43.55 41.89 1.65 44.59 42.35 2.24   0.58
     12 -4.74-4.85-5.12-4.53-4.60-4.52       48.54-5.00       49.03-4.44   0.55
      9  8.60 8.38 8.11 9.28 8.22 9.17       35.21 8.33       35.92 8.67   0.33
     13 -1.84-2.19-2.28-1.46-1.80-1.32       45.76-2.22       46.03-1.44   0.78
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.61  2.45                   2.14  2.14 1.00  2.29  2.25 1.02   1.02
     12         2.68                         2.35 0.91        2.27 1.01   1.11
      9         2.79                         2.46 0.87        2.36 0.97   1.12
     13         2.57                         2.47 0.86        2.21 1.04   1.20
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.98(F 10 - 42.35)(1.02) + 44.59      0.96(F 12 - 49.03)(1.01) + 44.59

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12   7    0.945 0.868 0.864 0.861
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 49.3 49.2 51.7 49.9 47.1 49.5 50.2 54.1 53.6 50.7 47.9 53.5 51.4 48.4 50.8
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
S- 10  2.0  1.5  1.2  0.4  0.8  2.0  2.2  1.8  2.3  1.6  1.7  3.3  2.8  2.0  1.4
S-  9  7.5  7.7  8.0  5.8  5.2  7.6  8.0  7.9  8.4  7.5  8.0  9.9  9.2  8.5  7.4
S- 12 -3.0 -4.9 -4.3 -6.6 -4.7 -3.6 -4.5 -4.1 -3.8 -4.1 -3.9 -3.3 -3.6 -4.3 -5.8
S-  7  6.5  7.2  6.4  6.8  4.5  7.0  7.9  7.6  7.6  8.0  7.8 10.5  8.8  7.1  6.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.51 1.42 0.89 1.85 1.44 2.15 49.73 48.40 1.34 50.48 48.67 1.80   0.47
      9  7.57 7.76 6.68 8.02 7.25 8.42       42.19 7.54       42.70 7.78   0.23
     12 -4.60-4.39-5.43-4.29-4.62-4.11       54.41-4.68       54.77-4.30   0.38
      7  7.05 6.88 6.55 7.45 6.66 8.02       42.80 6.93       43.14 7.34   0.40
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.25  1.97                   1.97  1.95 1.01  2.01  1.80 1.12   1.11
      9         2.04                         2.10 0.93        1.69 1.19   1.28
     12         1.96                         1.90 1.04        2.02 1.00   0.96
      7         1.89                         1.67 1.18        1.66 1.21   1.03
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 48.67)(1.12) + 50.48      0.93(F  9 - 42.70)(1.19) + 50.48

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12  13    0.886 0.837 0.789 0.745
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.5 56.2 60.8 58.2 56.8 57.2 57.4 59.5 62.4 56.4 57.5 60.4 60.0 56.3 56.7
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
S- 10  2.0  1.9  1.7  0.5  0.8  1.5  2.2  1.6  2.5  1.3  1.9  3.1  2.7  1.4  1.7
S-  7  6.2  7.0  6.1  4.5  4.0  5.4  6.5  6.6  6.9  6.5  6.6  8.5  7.6  6.3  5.9
S- 12 -2.6 -4.4 -2.8 -4.7 -3.7 -3.4 -3.5 -3.8 -2.8 -3.5 -2.6 -2.3 -3.6 -4.5 -5.0
S- 13 -0.6 -1.8 -1.0 -2.9 -2.6 -1.7 -1.2 -1.5 -0.4 -1.5 -0.4  0.0 -1.5 -2.2 -2.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.37 1.20 0.62 1.66 1.49 2.07 57.81 56.76 1.05 58.22 56.44 1.78   0.74
      7  5.97 5.98 5.39 6.11 5.75 6.88       52.01 5.80       51.92 6.30   0.49
     12 -3.93-3.87-4.80-3.66-3.72-3.49       61.92-4.11       61.78-3.56   0.55
     13 -2.03-2.14-3.08-1.65-1.81-1.21       60.19-2.38       59.67-1.45   0.94
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.77  1.52                   1.55  1.54 1.01  1.86  1.62 1.15   1.14
      7         1.59                         1.43 1.08        1.74 1.07   0.99
     12         1.46                         1.46 1.06        1.58 1.18   1.11
     13         1.53                         1.59 0.97        1.57 1.18   1.22
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.94(F 10 - 56.44)(1.15) + 58.22      0.91(F  7 - 51.92)(1.07) + 58.22

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   4  12    0.887 0.879 0.812 0.794
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.8 66.5 68.3 66.9 66.6 65.3 66.8 66.9 70.2 64.2 67.3 69.7 68.0 66.4 63.5
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
S-  7  4.6  5.6  5.5  3.9  4.3  4.3  5.6  5.7  5.6  5.2  5.5  6.6  7.0  5.1  4.4
S- 10  1.6  1.9  1.6  0.2  1.2  1.5  2.2  1.9  2.3  1.4  1.9  3.3  3.0  1.1  1.8
S-  4  8.7 10.3 11.7  9.2  9.0  8.9 10.4 11.1 10.2  9.2 10.0 12.1 12.4 10.1  8.6
S- 12 -2.2 -2.3 -2.4 -4.1 -2.5 -2.6 -2.1 -2.9 -1.7 -2.8 -1.6 -0.2 -2.2 -3.4 -2.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  5.00 5.04 4.22 5.28 5.03 5.62 66.63 61.88 4.75 66.76 61.50 5.26   0.51
     10  1.44 1.18 0.71 1.87 1.51 2.12       65.60 1.03       64.96 1.80   0.77
      4  9.9710.29 9.28 9.9910.0310.37       56.71 9.92       56.6310.13   0.20
     12 -2.80-2.89-3.60-2.49-2.70-2.09       69.77-3.14       69.13-2.37   0.77
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.70  1.33                   1.62  1.27 1.27  1.80  1.46 1.23   0.97
     10         1.42                         1.39 1.16        1.58 1.14   0.98
      4         1.27                         1.27 1.27        1.24 1.45   1.14
     12         1.33                         1.16 1.39        1.56 1.15   0.83
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.94(F  7 - 61.50)(1.23) + 66.76      0.94(F 10 - 64.96)(1.14) + 66.76

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   7   9    0.867 0.815 0.791 0.717
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.0 73.5 73.7 75.2 75.8 73.1 74.4 74.2 77.0 72.0 76.0 75.8 75.6 72.7 71.7
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
S- 10  1.7  2.1  1.9  1.2  1.8  1.8  2.5  2.1  2.2  2.0  2.2  3.4  3.4  1.0  2.0
S- 12 -1.8 -1.3 -1.9 -2.4 -0.6 -1.0 -0.9 -2.1 -0.5 -2.1 -1.2  0.7 -0.2 -3.4 -1.6
S-  7  4.0  5.0  4.7  4.1  4.7  3.1  5.3  5.3  4.8  5.2  5.5  5.9  6.1  4.6  4.2
S-  9  6.8  7.3  7.1  6.7  6.2  6.0  8.0  7.8  6.6  6.9  7.7  9.1  8.5  6.1  7.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.64 1.28 0.94 2.01 1.88 2.32 73.32 72.15 1.17 74.25 72.15 2.10   0.93
     12 -1.73-2.00-2.33-1.45-1.56-1.17       75.47-2.15       75.59-1.35   0.80
      7  4.32 4.26 3.36 4.48 4.58 5.18       69.39 3.92       69.42 4.82   0.90
      9  6.53 6.23 5.47 6.80 6.99 7.44       67.31 6.01       67.04 7.20   1.20
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.53  1.30                   1.17  1.15 1.02  1.55  1.40 1.11   1.09
     12         1.23                         1.04 1.13        1.25 1.24   1.10
      7         1.20                         1.07 1.09        1.38 1.12   1.02
      9         1.42                         1.45 0.81        1.53 1.01   1.25
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.93(F 10 - 72.15)(1.11) + 74.25      0.90(F 12 - 75.59)(1.24) + 74.25

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9   7    0.882 0.781 0.777 0.722
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 77.4 77.1 76.6 78.3 79.6 78.2 78.4 78.0 79.2 76.5 79.5 80.0 79.7 75.9 75.8
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
S- 10  1.3  1.9  2.2  1.6  2.1  2.1  2.5  2.2  2.5  2.5  2.3  3.8  3.2  1.1  1.8
S- 12 -1.3 -0.9 -1.5 -1.8 -0.2 -0.1 -0.2 -1.4  0.1 -1.4 -0.6  1.5  1.0 -2.0 -1.0
S-  9  6.0  6.6  7.4  7.3  6.9  6.1  7.7  7.7  7.3  8.0  7.3  8.8  7.4  6.1  6.7
S-  7  3.2  4.0  4.6  4.9  5.0  3.2  5.2  4.9  4.6  5.8  5.2  6.0  5.3  3.6  3.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.81 1.50 1.22 2.07 1.98 2.46 76.87 75.44 1.43 78.02 75.81 2.22   0.78
     12 -0.99-1.22-1.50-0.62-1.05-0.35       78.24-1.37       78.68-0.65   0.71
      9  6.74 6.46 5.99 7.05 7.02 7.36       70.51 6.36       70.87 7.15   0.79
      7  4.11 4.04 3.15 4.30 4.43 4.89       73.07 3.80       73.42 4.61   0.80
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.42  1.07                   1.10  0.93 1.18  1.38  1.08 1.28   1.08
     12         1.03                         0.92 1.19        0.88 1.57   1.32
      9         1.17                         1.06 1.04        1.25 1.10   1.06
      7         1.05                         0.92 1.20        1.18 1.16   0.97
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.94(F 10 - 75.81)(1.28) + 78.02      0.88(F 12 - 78.68)(1.57) + 78.02

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9   7    0.889 0.833 0.818 0.770
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 77.4 75.2 76.3 77.1 78.8 77.2 76.9 76.7 78.0 77.0 79.0 77.7 78.6 75.0 75.8
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
S- 10  2.0  2.6  2.8  2.2  2.5  2.6  2.9  2.4  2.6  3.1  2.7  4.1  3.4  1.8  2.3
S- 12 -0.9 -0.6 -0.3 -1.6 -0.1 -0.5 -0.2 -1.5 -0.1 -0.8 -0.3  1.3  0.9 -1.8 -1.1
S-  9  7.2  7.7  7.8  7.3  7.9  6.5  7.9  7.7  7.8  8.7  7.9  9.3  8.2  7.3  8.0
S-  7  4.1  4.8  4.7  5.3  5.9  4.2  5.6  5.5  5.3  6.9  6.0  6.5  5.5  4.3  4.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.13 1.78 1.52 2.27 2.45 2.86 76.05 74.33 1.72 77.10 74.43 2.67   0.96
     12 -0.87-1.10-1.45-0.57-0.79-0.26       77.28-1.23       77.61-0.50   0.73
      9  7.21 6.79 6.47 7.49 7.42 8.16       69.36 6.69       69.30 7.80   1.11
      7  4.62 4.38 3.62 4.89 4.88 5.62       71.85 4.20       71.81 5.29   1.09
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.49  1.24                   1.35  1.12 1.21  1.16  1.08 1.08   0.89
     12         1.09                         0.92 1.46        0.97 1.20   0.82
      9         1.38                         1.36 1.00        1.21 0.97   0.97
      7         1.19                         1.31 1.03        1.04 1.12   1.09
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.94(F 10 - 74.43)(1.08) + 77.10      0.91(F 12 - 77.61)(1.20) + 77.10

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9   7    0.895 0.857 0.843 0.829
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.5 71.9 72.1 71.4 70.1 69.4 71.4 71.8 71.2 69.6 71.5 70.6 72.6 69.6 70.1
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
S- 10  2.5  2.6  3.3  2.9  2.8  3.2  3.3  3.2  2.8  3.4  2.9  4.3  3.5  2.3  3.0
S- 12 -1.3 -0.7 -1.0 -1.3 -1.0 -1.1 -0.5 -1.6 -0.7 -1.0 -1.0  0.5 -0.1 -1.4 -1.1
S-  9  7.8  7.6  8.5  8.2  8.2  8.0  8.8  8.6  7.7  8.6  8.2  9.3  8.4  7.5  8.9
S-  7  5.1  5.6  6.2  6.3  6.4  5.8  6.0  6.2  5.5  7.1  6.6  7.3  5.7  5.0  5.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.50 2.17 1.82 2.64 2.88 3.16 70.22 68.22 2.00 70.98 67.92 3.06   1.06
     12 -1.20-1.44-1.82-0.81-1.10-0.69       71.85-1.62       71.86-0.88   0.74
      9  7.73 7.36 6.94 8.13 8.01 8.39       63.15 7.07       62.70 8.28   1.21
      7  5.39 5.11 4.41 5.76 5.76 6.14       65.38 4.84       64.95 6.03   1.19
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.51  1.42                   1.40  1.31 1.06  0.99  1.07 0.92   0.87
     12         1.30                         1.13 1.23        1.01 0.98   0.79
      9         1.50                         1.33 1.05        1.10 0.90   0.86
      7         1.41                         1.37 1.02        1.22 0.81   0.79
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.95(F 10 - 67.92)(0.92) + 70.98      0.93(F 12 - 71.86)(0.98) + 70.98

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   12  10  13   9    0.926 0.916 0.863 0.849
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 62.7 62.5 66.5 64.2 61.7 60.5 63.2 64.1 62.3 62.3 63.1 63.9 62.0 60.2 61.4
cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
S- 12 -1.1 -1.0 -2.0 -2.1 -1.2 -1.7 -1.3 -1.5 -0.8 -1.3 -1.8 -0.1 -0.9 -2.0 -1.4
S- 10  3.2  2.9  3.4  3.5  3.2  4.0  3.6  3.4  3.1  3.7  3.0  4.5  3.8  2.9  3.5
S- 13  1.8  0.9  1.6  1.2  1.8  1.6  2.1  1.3  1.9  2.1  1.6  3.1  2.3  1.2  1.9
S-  9  9.1  8.5  9.0  9.4  9.0  9.4  9.8  9.0  8.8  9.3  9.4  9.7 10.0  9.1 10.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     12 -1.58-1.70-2.14-1.29-1.47-1.18 61.70 63.61-1.91 62.71 64.06-1.35   0.56
     10  2.89 2.66 2.04 3.12 3.29 3.50       59.27 2.43       59.25 3.46   1.03
     13  1.03 0.60 0.15 1.31 1.38 2.01       61.38 0.32       60.96 1.75   1.43
      9  8.60 8.42 7.48 8.98 8.90 9.48       53.73 7.97       53.41 9.30   1.33
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     12   1.67  1.57                   1.02  0.77 1.32  1.54  1.65 0.93   0.70
     10         1.52                         0.78 1.30        1.55 1.00   0.77
     13         1.52                         0.79 1.28        1.60 0.96   0.75
      9         1.66                         0.90 1.13        1.63 0.94   0.83
Suggested regression eqns from two most closely related CDs ( 12 and  10): 
          0.96(F 12 - 64.06)(0.93) + 62.71      0.96(F 10 - 59.25)(1.00) + 62.71

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.946 0.929 0.900 0.896
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 52.3 55.9 55.7 55.0 52.3 51.1 50.2 57.2 54.1 52.7 52.0 56.5 51.3 51.7 51.9
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
S- 10  3.6  2.7  3.2  3.9  3.3  4.0  3.6  4.0  3.3  3.7  2.6  4.4  3.7  3.0  3.4
S- 12 -2.1 -1.9 -3.0 -2.5 -1.9 -1.7 -2.4 -1.3 -1.2 -2.0 -2.6 -0.6 -1.9 -2.5 -1.9
S-  9 10.1  8.3  9.9 10.5  8.8  9.9 10.8 10.4  9.6  9.9  9.1 10.1 10.2  9.1  9.7
S- 13  1.6  0.4  0.9  1.7  1.5  1.5  0.8  2.4  1.7  2.0  1.3  3.0  1.7  1.3  2.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  3.04 2.85 2.22 3.36 3.46 3.45 51.84 49.29 2.55 53.32 49.82 3.50   0.96
     12 -2.16-2.23-2.85-1.68-2.11-1.81       54.38-2.54       55.30-1.97   0.57
      9  9.20 9.05 8.26 9.60 9.57 9.68       43.22 8.62       43.56 9.76   1.14
     13  0.94 0.51-0.03 1.42 1.24 1.84       51.66 0.18       51.75 1.57   1.40
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.10  1.96                   1.68  1.43 1.18  2.14  2.11 1.01   0.86
     12         1.96                         1.49 1.13        2.02 1.06   0.94
      9         2.15                         1.54 1.09        2.26 0.95   0.87
     13         1.84                         1.31 1.28        2.05 1.04   0.81
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.97(F 10 - 49.82)(1.01) + 53.32      0.96(F 12 - 55.30)(1.06) + 53.32

Station#1873  NORFOLK/INTL ARPT   , va  4613901    lat/lon 76.20   36.88     0M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12   7    0.963 0.940 0.939 0.926
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.1 45.2 46.8 46.3 45.8 47.2 45.0 49.6 47.6 47.5 43.7 50.8 42.3 44.8 44.5
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
S- 10  3.0  2.6  2.5  3.8  3.7  3.8  3.3  3.6  3.0  3.2  2.5  4.4  3.1  3.0  1.0
S-  9  9.9  9.4 10.1 10.4  9.3  9.2 10.7 10.1 10.4  9.5 10.0 10.9  9.6  9.6  7.2
S- 12 -3.5 -2.8 -3.4 -3.5 -2.0 -2.6 -3.2 -2.1 -1.6 -3.2 -3.8 -0.8 -3.5 -3.6 -4.5
S-  7  8.1  7.4  8.5  9.4  8.7  8.4  9.2  9.3  8.5  8.4  8.7  8.9  8.4  7.8  4.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  2.87 2.57 2.34 3.27 3.28 2.89 44.54 42.12 2.42 46.00 42.90 3.10   0.69
      9  9.58 9.27 9.0610.20 9.76 9.61       35.43 9.11       36.24 9.76   0.65
     12 -3.08-3.37-3.44-2.72-2.87-2.99       48.06-3.52       48.94-2.93   0.59
      7  8.06 7.70 7.64 8.59 8.41 7.89       36.91 7.63       37.72 8.28   0.65
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.62  2.36                   2.08  1.90 1.10  2.25  1.95 1.16   1.05
      9         2.64                         2.20 0.95        2.10 1.07   1.13
     12         2.40                         2.02 1.03        1.66 1.35   1.31
      7         2.43                         1.96 1.06        2.15 1.05   0.99
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.90)(1.16) + 46.00      0.97(F  9 - 36.24)(1.07) + 46.00

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 37.44 40.19 45.09 52.76 61.03 68.18 71.42 70.24 65.00 54.27 44.77 38.92
1952 39.48 41.50 46.43 53.92 64.39 71.49 74.90 71.68 62.95 52.59 43.26 39.66
1953 38.16 41.38 45.11 54.34 63.10 70.46 72.96 71.04 65.55 55.77 45.27 38.41
1954 37.17 39.21 46.61 51.90 61.54 67.04 72.43 71.92 65.69 55.26 43.71 35.69
1955 33.96 38.30 46.45 55.51 61.46 67.45 70.80 72.29 65.42 54.14 42.29 34.35
1956 34.69 38.04 44.46 51.53 59.81 67.14 69.74 68.11 63.88 54.62 48.69 40.49
1957 40.69 40.47 47.97 54.75 63.48 68.57 70.35 69.58 62.61 54.57 44.38 37.46
1958 31.63 33.10 40.95 52.70 61.83 68.72 71.60 70.22 63.20 54.96 43.79 36.08
1959 33.10 36.59 44.22 53.55 62.71 69.27 71.97 71.29 65.73 54.65 44.86 37.90
1960 35.43 32.97 39.21 47.46 60.49 66.22 71.13 70.61 65.48 55.43 42.58 33.21
1961 32.23 38.51 45.08 50.87 57.19 64.50 68.77 69.13 63.28 55.41 45.12 38.14
1962 35.84 37.42 43.53 53.00 62.33 69.52 70.26 68.76 63.59 54.52 44.04 34.49
1963 29.66 34.38 43.49 54.22 61.83 66.96 69.90 68.27 64.06 55.80 43.28 34.14
1964 29.61 35.18 43.73 54.52 63.45 68.55 70.22 68.79 61.98 54.85 45.57 40.30
1965 35.70 37.46 45.37 56.09 64.79 69.26 70.89 70.65 63.91 55.45 45.21 36.24
1966 32.81 35.50 44.35 52.72 60.75 68.16 71.53 70.14 63.30 55.17 45.54 40.21
1967 36.13 41.45 48.30 56.65 62.79 66.91 70.12 67.87 62.99 53.63 47.10 40.14
1968 36.09 38.05 45.08 55.84 63.07 68.66 72.69 71.10 65.32 55.58 44.92 37.32
1969 34.71 36.76 45.01 53.70 64.20 70.25 73.14 71.52 64.93 54.57 43.98 34.42
1970 32.73 36.74 46.75 56.05 63.84 69.56 72.52 73.22 67.94 58.36 48.12 39.56
1971 37.13 37.69 44.47 51.79 61.80 67.85 71.95 71.36 68.26 59.26 51.04 42.96
1972 40.00 40.02 45.59 54.38 61.41 67.25 71.07 72.02 66.14 56.82 48.26 41.61
1973 38.91 42.28 48.28 55.40 61.47 68.54 73.27 72.85 67.90 59.62 48.84 44.45
1974 41.73 46.35 49.38 57.28 62.41 68.40 71.00 70.37 63.48 54.76 45.81 41.32
1975 40.20 42.47 47.40 55.50 64.00 70.42 73.41 72.35 67.40 58.45 49.17 40.36
1976 39.21 43.16 50.58 55.61 61.96 67.67 70.88 69.36 62.56 52.28 42.14 32.61
1977 31.24 36.67 48.84 58.69 65.09 70.60 73.04 72.84 65.34 57.32 46.46 37.91
1978 31.78 35.25 45.02 55.33 63.48 69.19 72.88 72.65 65.54 57.47 47.06 39.31
1979 34.02 37.23 45.78 55.27 62.27 67.86 71.15 70.71 65.04 56.59 46.79 41.30
1980 36.73 38.91 44.46 54.64 63.16 70.22 74.50 74.68 66.71 55.88 44.41 37.04
1981 34.53 36.70 46.18 55.05 66.06 71.79 74.92 72.08 65.03 56.11 45.52 37.65
1982 36.06 41.00 48.00 56.25 62.56 69.45 70.74 69.18 63.53 56.42 50.23 43.56
1983 40.63 41.60 46.51 53.20 60.27 68.04 73.30 72.44 66.58 56.93 46.74 38.64
1984 36.90 40.07 47.14 53.21 62.49 68.52 73.08 70.36 67.25 57.08 50.44 38.27
1985 35.66 36.60 46.58 55.19 62.02 67.05 69.88 69.13 66.00 60.80 49.94 40.01
1986 35.51 40.36 49.29 56.75 65.73 71.93 74.49 72.70 66.43 59.46 49.39 41.51
1987 37.69 40.58 45.07 53.72 61.00 69.45 72.60 71.67 63.88 54.99 46.49 40.12
1988 36.53 38.98 46.89 55.03 62.80 69.38 74.15 73.27 64.74 55.44 45.39 42.21
1989 39.18 43.77 48.54 55.16 61.52 68.04 72.64 71.70 66.06 56.85 43.40 38.16
1990 37.20 44.27 47.94 54.20 61.83 69.10 73.06 71.87 65.81 57.02 48.22 41.34
1991 38.30 40.12 47.16 56.99 65.70 72.01 73.43 71.54 64.90 54.87 45.90 38.08
1992 36.47 36.13 41.72 48.39 57.23 64.79 68.72 68.90 61.48 52.66 41.62 37.25
1993 33.86 35.60 39.55 49.20 59.42 68.75 72.96 72.59 64.78 54.32 44.11 34.95
1994 33.38 35.64 44.86 51.48 61.17 67.69 71.86 69.32 62.82 55.18 47.21 41.04
1995 36.74 39.53 46.03 54.83 61.88 68.40 73.35 72.05 64.31 50.72 39.09 32.82
1996 32.05 33.97 39.70 49.62 61.10 67.76 71.03 69.38 63.52 52.82 43.92 37.68
1997 37.94 41.92 47.18 52.48 58.21 66.24 70.77 70.30 64.13 53.67 43.61 36.30

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  11  38  10    0.843 0.839 0.830 0.819
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.6 36.9 35.7 35.5 37.7 36.5 39.2 37.2 38.3 36.5 33.9 33.4 36.7 32.0 37.9
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
S-  9  5.4  5.5  2.8  4.0  5.3  4.4  4.7  3.5  2.0  0.7  0.0  3.1  2.6  1.4  2.5
S- 11  2.0  1.4 -0.9 -0.3  0.6  0.7  0.5 -0.9 -2.1 -3.8 -4.6 -2.0 -1.7 -3.1 -1.6
S- 38  2.6  4.4  2.0  2.0  2.7  2.6  2.5  1.4  0.6 -1.7 -1.6  1.3  0.6 -0.5  0.6
S- 10 -0.1 -1.6 -4.6 -3.5 -0.7 -1.6 -1.5 -3.7 -5.2 -6.3 -6.5 -4.2 -4.7 -5.2 -3.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  3.50 2.40 3.17 5.04 4.60 1.75 34.99 32.62 2.37 36.54 33.35 3.19   0.82
     11 -1.00-2.06-1.64 0.49 0.38-2.69       37.27-2.29       37.59-1.05   1.24
     38  1.49 0.10 1.12 3.28 2.60-0.11       34.82 0.17       35.24 1.30   1.13
     10 -3.39-4.20-3.89-2.21-2.05-5.12       39.40-4.41       40.07-3.54   0.87
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.92  2.89                   3.22  2.99 1.08  2.16  1.85 1.17   1.08
     11         2.77                         3.08 1.05        1.75 1.23   1.18
     38         3.07                         3.13 1.03        2.04 1.06   1.03
     10         2.48                         2.49 1.29        1.82 1.18   0.92
Suggested regression eqns from two most closely related CDs (  9 and  11): 
          0.92(F  9 - 33.35)(1.17) + 36.54      0.92(F 11 - 37.59)(1.23) + 36.54

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11   9  38  50    0.805 0.796 0.791 0.785
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.6 40.1 36.6 40.4 40.6 39.0 43.8 44.3 40.1 36.1 35.6 35.6 39.5 34.0 41.9
cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2
S- 11  2.0  1.3 -1.0  0.0  0.7  1.2  0.7 -1.2 -2.2 -5.6 -4.4 -3.0 -1.2 -3.5 -1.4
S-  9  5.6  6.2  3.1  4.5  5.2  5.0  5.6  2.3  2.1 -0.9  0.4  2.5  3.5  1.2  4.0
S- 38  2.8  4.2  1.8  1.7  1.8  3.1  3.4  0.0  0.1 -3.5 -1.5  0.7  1.3 -0.8  2.0
S- 50 -0.3 -0.5 -2.7 -3.3 -2.7 -1.4 -1.0 -3.7 -4.2 -8.0 -6.1 -5.3 -3.9 -5.8 -3.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.97-2.22-1.41 0.75 0.45-3.04 37.65 40.04-2.39 39.28 40.46-1.18   1.21
      9  3.76 2.54 3.42 5.50 4.94 1.82       35.21 2.44       35.92 3.35   0.92
     38  1.48 0.01 1.18 3.43 2.51-0.25       37.64 0.01       38.13 1.14   1.14
     50 -3.22-4.72-3.49-1.31-1.97-5.23       42.38-4.74       42.76-3.48   1.26
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   3.01  2.71                   2.68  2.61 1.03  2.99  2.27 1.31   1.28
      9         2.79                         2.46 1.09        2.36 1.26   1.16
     38         3.03                         2.71 0.99        2.54 1.18   1.19
     50         3.00                         2.97 0.90        2.32 1.29   1.43
Suggested regression eqns from two most closely related CDs ( 11 and   9): 
          0.90(F 11 - 40.46)(1.31) + 39.28      0.89(F  9 - 35.92)(1.26) + 39.28

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  56  13  38    0.702 0.676 0.670 0.663
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 46.5 47.1 46.6 49.3 45.1 46.9 48.5 47.9 47.2 41.7 39.5 44.9 46.0 39.7 47.2
cd 11 44.9 45.5 47.2 48.4 45.7 45.7 47.3 49.7 48.9 47.2 43.7 47.9 47.0 43.6 48.2
cd 56 51.9 53.3 55.4 56.4 52.8 53.5 55.2 57.1 57.0 54.6 50.9 56.2 55.1 51.5 56.2
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
S- 11  1.6  1.6 -0.6  0.9 -0.6  1.2  1.2 -1.8 -1.8 -5.4 -4.2 -3.0 -0.9 -3.9 -1.0
S- 56 -5.4 -6.2 -8.8 -7.1 -7.7 -6.6 -6.7 -9.2 -9.9-12.9-11.4-11.3 -9.1-11.8 -9.0
S- 13 -3.6 -4.2 -7.1 -5.0 -4.9 -4.2 -3.7 -7.5 -7.7-10.8 -9.5 -9.1 -6.5-10.4 -6.5
S- 38  2.0  3.1  0.7  2.3 -0.4  3.0  3.7 -0.4 -0.8 -4.5 -2.5 -0.7  0.9 -1.9  1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.74-2.07-0.82 1.01 0.43-2.89 44.51 46.55-2.04 45.61 46.72-1.11   0.93
     56 -8.50*****-8.33-6.72-7.30*****       54.36-9.85       54.48-8.87   0.98
     13 -6.34-7.83-6.14-4.74-5.06-8.63       52.13-7.61       52.32-6.71   0.91
     38  0.86-0.51 0.91 2.56 1.88-1.13       44.93-0.41       45.19 0.42   0.83
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.49  1.92                   2.15  2.12 1.01  2.90  1.76 1.65   1.62
     56         1.98                         2.07 1.03        1.96 1.48   1.43
     13         1.96                         2.04 1.05        1.92 1.51   1.44
     38         2.21                         2.29 0.93        1.81 1.60   1.71
Suggested regression eqns from two most closely related CDs ( 11 and  56): 
          0.84(F 11 - 46.72)(1.65) + 45.61      0.82(F 56 - 54.48)(1.48) + 45.61

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  38  56   9    0.732 0.701 0.693 0.690
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.2 53.2 55.2 56.8 53.7 55.0 55.2 54.2 57.0 48.4 49.2 51.5 54.8 49.6 52.5
cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
cd 56 59.3 59.9 63.0 62.6 61.4 60.9 61.2 62.2 64.4 59.9 58.8 62.0 63.5 59.9 61.1
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
S- 11  0.7  1.1 -0.8  1.3 -1.3  1.3  1.4 -1.2 -0.7 -4.4 -3.1 -2.5 -0.8 -3.2 -0.6
S- 38  1.1  2.8 -1.3  1.4 -1.8  1.8  2.2  0.0 -1.0 -4.4 -2.6 -1.3  0.5 -1.9  1.3
S- 56 -6.1 -6.7 -7.8 -5.9 -7.7 -5.9 -6.1 -8.0 -7.4-11.5 -9.6-10.5 -8.7-10.3 -8.7
S-  9  3.5  4.9  1.5  4.1  1.8  4.1  5.2  2.0  1.9 -1.6 -0.6  0.9  3.2  0.4  3.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.43-1.73-0.27 1.08 0.45-2.19 53.14 54.68-1.54 53.30 54.16-0.86   0.68
     38  0.19-1.08 0.42 1.56 0.96-1.36       54.02-0.88       53.51-0.22   0.67
     56 -7.54-9.08-7.06-6.02-6.62-9.52       61.83-8.69       61.35-8.06   0.64
      9  2.90 1.70 3.29 4.22 3.64 1.14       51.18 1.96       50.97 2.33   0.37
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.31  1.54                   2.07  1.66 1.24  2.55  1.58 1.62   1.30
     38         1.82                         1.74 1.19        2.05 1.24   1.04
     56         1.54                         1.59 1.30        1.57 1.62   1.25
      9         1.68                         1.70 1.21        1.83 1.39   1.15
Suggested regression eqns from two most closely related CDs ( 11 and  38): 
          0.86(F 11 - 54.16)(1.62) + 53.30      0.84(F 38 - 53.51)(1.24) + 53.30

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   66  39  11  38    0.772 0.753 0.738 0.736
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 60.3 62.5 62.0 65.7 61.0 62.8 61.5 61.8 65.7 57.2 59.4 61.2 61.9 61.1 58.2
cd 66 70.7 72.0 73.5 73.8 72.1 71.9 72.5 73.2 75.3 70.8 71.3 73.3 73.3 72.6 70.3
cd 39 61.5 64.3 65.9 67.0 66.9 64.9 63.1 63.1 68.5 62.9 63.7 65.0 64.8 64.4 60.7
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
S- 66-10.4 -9.5-11.5 -8.1-11.1 -9.1-11.0-11.4 -9.6-13.6-11.8-12.2-11.4-11.5-12.1
S- 39 -1.3 -1.8 -3.9 -1.3 -5.9 -2.1 -1.6 -1.3 -2.8 -5.7 -4.3 -3.8 -3.0 -3.3 -2.5
S- 11  0.3  1.1 -1.1  1.5 -2.3  1.4  1.0 -0.3  0.6 -2.9 -2.5 -1.6 -0.5 -1.4 -0.4
S- 38  0.0  0.7 -1.8  1.1 -3.3  0.7  0.7  0.2 -1.1 -3.3 -2.3 -1.7 -0.6 -1.3 -0.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     66 ***************-9.80********** 61.96 73.24***** 61.49 72.44*****   0.33
     39 -2.60-3.38-2.59-1.70-2.00-3.62       65.33-3.37       64.46-2.97   0.41
     11 -0.27-1.53-0.22 0.96 0.36-1.23       63.26-1.30       61.96-0.47   0.83
     38 -0.58-1.83-0.49 0.56 0.10-1.50       63.55-1.58       62.31-0.82   0.76
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     66   1.93  1.10                   1.85  0.90 2.04  2.22  1.31 1.70   0.83
     39         1.70                         1.66 1.11        2.01 1.11   1.00
     11         1.51                         1.45 1.28        1.64 1.35   1.06
     38         1.68                         1.64 1.13        1.97 1.13   1.00
Suggested regression eqns from two most closely related CDs ( 66 and  39): 
          0.88(F 66 - 72.44)(1.70) + 61.49      0.87(F 39 - 64.46)(1.11) + 61.49

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   39  38   9  11    0.756 0.744 0.739 0.734
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.0 68.5 67.1 71.9 69.4 69.4 68.0 69.1 72.0 64.8 68.8 67.7 68.4 67.8 66.2
cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
S- 39 -3.4 -2.5 -4.6 -2.1 -5.1 -3.0 -2.0 -1.4 -2.9 -5.1 -4.1 -3.4 -3.3 -4.0 -3.2
S- 38 -1.1  0.0 -2.2  0.2 -2.8 -0.6 -0.1  0.4 -1.0 -2.5 -1.6 -1.3 -1.3 -1.7 -0.8
S-  9  1.9  2.4  0.5  3.4 -0.2  2.2  1.7  2.7  1.6 -0.3  0.5  1.0  1.2  1.2  1.7
S- 11  0.0  0.9 -1.5  1.1 -1.7  1.4  0.8  0.5  1.0 -2.0 -1.6 -0.3 -0.3 -1.4 -0.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     39 -3.22-3.95-3.32-2.62-2.66-3.72 68.22 72.21-3.99 68.48 71.83-3.35   0.64
     38 -1.09-2.24-1.19-0.19-0.47-1.46       70.33-2.11       69.57-1.10   1.01
      9  1.67 0.87 1.49 2.61 2.16 1.00       67.31 0.91       67.04 1.44   0.52
     11 -0.16-1.31-0.23 0.91 0.35-0.68       69.39-1.17       68.69-0.21   0.96
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     39   1.63  1.51                   1.69  1.60 1.05  1.80  1.61 1.12   1.07
     38         1.56                         1.61 1.05        1.65 1.09   1.04
      9         1.42                         1.45 1.16        1.53 1.18   1.02
     11         1.47                         1.43 1.18        1.45 1.24   1.05
Suggested regression eqns from two most closely related CDs ( 39 and  38): 
          0.87(F 39 - 71.83)(1.12) + 68.48      0.86(F 38 - 69.57)(1.09) + 68.48

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   39  38  11   9    0.727 0.708 0.705 0.698
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.3 73.1 69.9 74.5 72.6 74.2 72.6 73.1 73.4 68.7 73.0 71.9 73.3 71.0 70.8
cd 39 77.7 75.6 74.3 76.1 77.0 77.0 74.5 74.7 76.8 72.8 76.9 75.2 77.0 74.5 74.0
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
S- 39 -4.3 -2.5 -4.5 -1.6 -4.4 -2.8 -1.8 -1.6 -3.4 -4.0 -4.0 -3.3 -3.7 -3.5 -3.2
S- 38 -1.9 -0.2 -2.1  0.4 -2.2 -0.7 -0.2  0.5 -1.0 -1.6 -1.3 -1.6 -1.9 -1.3 -1.1
S- 11  0.5  1.3 -1.3  0.9 -1.1  1.6  1.1  0.9  0.8 -1.4 -0.9 -0.2  0.3 -0.5  0.0
S-  9  1.9  2.6  0.8  3.5 -0.1  2.1  1.9  2.8  1.5  0.2  0.8  0.6  1.0  1.3  1.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     39 -3.43-4.45-3.59-2.85-2.73-3.59 71.16 75.64-4.48 72.35 75.60-3.24   1.24
     38 -1.32-2.53-1.58-0.53-0.57-1.41       73.63-2.47       73.43-1.08   1.40
     11 -0.10-1.27-0.35 0.87 0.49-0.27       72.39-1.24       72.21 0.14   1.38
      9  1.50 0.71 1.06 2.38 2.19 0.99       70.51 0.65       70.87 1.48   0.84
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     39   1.54  1.46                   1.45  1.50 0.97  1.55  1.40 1.11   1.15
     38         1.33                         1.30 1.12        1.39 1.12   1.00
     11         1.21                         1.17 1.24        1.06 1.46   1.18
      9         1.17                         1.06 1.37        1.25 1.24   0.91
Suggested regression eqns from two most closely related CDs ( 39 and  38): 
          0.85(F 39 - 75.60)(1.11) + 72.35      0.84(F 38 - 73.43)(1.12) + 72.35

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   39   9  38  11    0.751 0.750 0.743 0.736
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.4 70.4 69.1 72.7 71.7 73.3 71.7 71.9 71.5 68.9 72.6 69.3 72.1 69.4 70.3
cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
S- 39 -4.5 -2.1 -3.9 -2.4 -3.4 -1.9 -1.1 -1.7 -3.3 -3.0 -2.2 -2.8 -3.0 -2.9 -2.7
S-  9  2.3  2.9  0.6  2.9  0.8  2.5  2.6  2.8  1.3  0.6  1.4  1.0  1.7  1.7  2.5
S- 38 -1.9  0.0 -1.8 -0.2 -1.1 -0.1  0.3  0.4 -0.9 -0.9 -0.2 -1.1 -1.2 -1.0 -0.4
S- 11  0.6  1.2 -0.6  0.5 -0.3  1.8  1.5  0.8  0.1 -1.2 -0.2 -0.1  0.2 -0.3  0.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     39 -2.90-4.04-3.10-1.97-2.53-2.84 70.17 74.18-4.00 71.15 73.87-2.72   1.28
      9  1.76 0.89 1.36 2.70 2.32 1.46       69.36 0.81       69.30 1.85   1.03
     38 -1.01-2.35-1.29-0.08-0.48-0.82       72.45-2.27       71.83-0.69   1.59
     11  0.02-1.16-0.23 0.99 0.66-0.21       71.32-1.15       70.88 0.27   1.42
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     39   1.56  1.60                   1.30  1.40 0.93  1.41  1.45 0.97   1.04
      9         1.38                         1.36 0.96        1.21 1.17   1.21
     38         1.54                         1.41 0.92        1.33 1.05   1.14
     11         1.34                         1.14 1.14        1.11 1.27   1.11
Suggested regression eqns from two most closely related CDs ( 39 and   9): 
          0.87(F 39 - 73.87)(0.97) + 71.15      0.87(F  9 - 69.30)(1.17) + 71.15

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  11    0.753 0.737 0.730 0.725
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.6 67.3 66.0 66.4 63.9 64.7 66.1 65.8 64.9 61.5 64.8 62.8 64.3 63.5 64.1
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
S- 10 -2.4 -2.0 -2.8 -2.1 -3.4 -1.4 -2.1 -2.8 -3.5 -4.7 -3.9 -3.5 -4.8 -3.8 -2.9
S- 12 -6.2 -5.3 -7.1 -6.3 -7.2 -5.7 -5.8 -7.5 -7.0 -9.1 -7.7 -7.3 -8.4 -7.5 -7.1
S-  9  2.9  2.9  2.3  3.2  2.0  3.4  3.4  2.7  1.4  0.5  1.5  1.5  0.2  1.4  2.9
S- 11  0.8  1.0  0.4  0.6  0.3  1.6  1.9  0.5 -0.3 -1.7 -0.2 -0.6 -1.2 -0.6  0.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -3.16-4.08-3.41-2.44-2.23-3.87 64.16 68.22-4.07 64.85 67.92-3.07   1.00
     12 -6.86-7.69-7.05-5.90-6.21-7.72       71.85-7.69       71.86-7.02   0.67
      9  2.07 1.11 1.71 3.05 2.90 1.36       63.15 1.00       62.70 2.15   1.15
     11  0.00-1.24-0.21 1.00 0.89-0.62       65.38-1.23       64.65 0.20   1.43
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.60  1.42                   1.20  1.31 0.91  1.50  1.07 1.41   1.55
     12         1.30                         1.13 1.06        1.01 1.49   1.41
      9         1.50                         1.33 0.90        1.10 1.37   1.52
     11         1.43                         1.27 0.95        1.04 1.45   1.53
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.87(F 10 - 67.92)(1.41) + 64.85      0.86(F 12 - 71.86)(1.49) + 64.85

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  56  11  50    0.772 0.756 0.755 0.749
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.9 57.1 60.8 59.5 55.0 55.4 56.8 57.0 54.9 52.7 54.3 55.2 50.7 52.8 53.7
cd 38 56.9 56.4 59.6 57.3 54.9 53.8 55.4 57.2 55.7 54.7 54.3 56.5 53.6 53.6 54.0
cd 56 61.9 63.3 66.7 65.5 61.5 61.7 62.6 64.5 62.2 61.6 63.0 63.0 60.9 61.0 61.4
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
cd 50 59.2 59.6 62.1 61.0 57.7 57.3 58.3 60.4 58.6 57.8 57.3 59.8 56.4 57.0 57.1
S- 38  0.0  0.7  1.2  2.1  0.1  1.6  1.4 -0.2 -0.8 -2.0  0.0 -1.4 -2.9 -0.7 -0.4
S- 56 -5.0 -6.2 -5.9 -6.0 -6.6 -6.2 -5.8 -7.5 -7.3 -9.0 -8.7 -7.8-10.2 -8.2 -7.7
S- 11  1.1  0.5  0.8  0.9  0.5  1.8  1.6 -0.2 -1.1 -2.5 -1.6 -1.1 -3.4 -1.2 -0.5
S- 50 -2.2 -2.5 -1.3 -1.5 -2.8 -1.9 -1.4 -3.4 -3.8 -5.1 -3.0 -4.6 -5.7 -4.1 -3.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -0.18-1.48-0.34 1.00 0.81-1.18 54.82 56.19-1.38 55.52 55.61-0.09   1.28
     56 -6.96-8.24-6.65-5.87-6.07-8.42       62.79-7.97       62.73-7.21   0.76
     11 -0.24-1.52-0.26 0.87 0.91-1.62       56.22-1.40       55.81-0.29   1.11
     50 -3.03-4.26-3.19-1.77-2.06-4.24       59.07-4.25       58.63-3.11   1.14
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.99  1.76                   0.78  1.01 0.77  2.53  1.67 1.52   1.96
     56         1.53                         0.75 1.04        1.63 1.55   1.49
     11         1.62                         0.81 0.96        1.72 1.47   1.53
     50         1.71                         1.04 0.75        1.60 1.58   2.10
Suggested regression eqns from two most closely related CDs ( 38 and  56): 
          0.88(F 38 - 55.61)(1.52) + 55.52      0.87(F 56 - 62.73)(1.55) + 55.52

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  56  13   9    0.815 0.811 0.800 0.795
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 46.7 50.4 49.9 49.4 46.5 45.4 43.4 48.2 45.9 41.6 44.1 47.2 39.1 43.9 43.6
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
cd 56 52.3 57.4 56.8 56.1 53.5 52.7 51.5 56.3 54.3 52.4 52.8 55.7 51.6 52.8 52.1
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
S- 11  1.4  0.0  0.7  0.7  0.5  1.4  0.7 -0.9 -1.3 -3.7 -1.5 -1.7 -4.7 -1.9 -1.1
S- 56 -5.6 -7.0 -6.9 -6.7 -7.1 -7.3 -8.1 -8.0 -8.4-10.8 -8.7 -8.5-12.5 -8.9 -8.5
S- 13 -4.0 -5.1 -4.9 -3.9 -4.3 -4.2 -5.9 -6.6 -6.5 -9.0 -6.6 -6.3-10.5 -6.5 -6.3
S-  9  4.6  2.8  4.1  4.9  3.0  4.2  4.0  1.5  1.5 -1.2  1.2  0.9 -2.0  1.3  1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.59-1.91-0.55 0.58 0.71-2.28 44.45 46.20-1.75 45.70 46.46-0.77   0.98
     56 -7.83-9.20-7.57-6.58-6.84-9.47       53.39-8.93       53.89-8.20   0.74
     13 -5.94-7.43-5.91-4.76-4.63-7.41       51.66-7.21       51.75-6.05   1.16
      9  2.32 1.11 2.37 3.42 3.70 0.43       43.22 1.24       43.56 2.13   0.90
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.54  2.00                   1.49  1.44 1.03  3.06  2.26 1.35   1.31
     56         1.82                         1.22 1.23        1.96 1.56   1.27
     13         1.84                         1.31 1.13        2.05 1.49   1.31
      9         2.15                         1.54 0.97        2.26 1.36   1.40
Suggested regression eqns from two most closely related CDs ( 11 and  56): 
          0.90(F 11 - 46.46)(1.35) + 45.70      0.90(F 56 - 53.89)(1.56) + 45.70

Station#1874  PENNINGTON GAP      , va  4662603    lat/lon 83.05   36.75    37M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  56  66   9    0.832 0.813 0.813 0.810
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.6 38.3 40.0 41.5 40.1 42.2 38.2 41.3 38.1 37.3 35.0 41.0 32.8 37.7 36.3
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0
cd 66 52.1 54.2 55.7 57.0 54.5 57.3 53.8 57.2 54.1 56.8 52.7 56.5 52.1 54.9 54.4
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
S- 11  1.4 -0.6 -0.1  0.7  0.7  1.1  0.0 -1.7 -2.8 -4.0 -2.6 -1.8 -3.7 -1.6 -3.4
S- 56 -6.3 -8.8 -8.7 -7.3 -7.5 -7.4 -9.1 -8.5-10.0-11.1-10.4 -9.0-11.7-10.0-10.7
S- 66-13.5-16.0-15.7-15.5-14.3-15.1-15.6-15.8-16.0-19.6-17.7-15.4-19.3-17.2-18.1
S-  9  5.4  2.5  3.3  5.6  3.7  4.2  3.8  1.8  0.9 -0.8  1.3  1.2  0.2  2.5 -1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.95-2.26-1.09 0.44 0.42-2.82 37.03 39.26-2.23 38.56 39.78-1.23   1.00
     56 -8.72*****-8.58-7.27-7.57*****       47.11*****       47.66-9.10   0.98
     66 ******************************       53.96*****       54.89*****   0.60
      9  2.75 1.58 2.83 4.09 4.02 0.62       35.43 1.60       36.24 2.31   0.71
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.83  2.43                   2.27  2.14 1.06  2.51  1.87 1.34   1.27
     56         2.30                         2.03 1.12        1.64 1.53   1.37
     66         2.38                         2.04 1.11        1.74 1.44   1.30
      9         2.64                         2.20 1.03        2.10 1.19   1.16
Suggested regression eqns from two most closely related CDs ( 11 and  56): 
          0.91(F 11 - 39.78)(1.34) + 38.56      0.90(F 56 - 47.66)(1.53) + 38.56

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 38.52 41.52 47.16 55.45 64.47 71.58 74.99 73.81 68.75 58.19 48.67 41.78
1952 40.89 42.23 47.36 55.06 65.86 73.17 76.80 74.02 66.09 57.30 47.04 42.31
1953 40.34 43.75 48.82 58.20 67.08 74.29 76.37 75.20 69.52 59.80 49.79 41.91
1954 40.44 42.36 50.09 56.14 65.47 71.30 76.30 76.19 71.18 60.48 48.01 38.61
1955 36.49 40.57 48.82 58.05 65.16 72.37 75.66 75.42 68.00 57.10 45.26 37.02
1956 36.22 40.23 46.96 54.39 63.62 70.89 74.28 72.59 66.82 57.65 49.84 41.07
1957 39.60 40.39 49.33 57.56 67.03 73.02 75.73 74.57 66.44 57.52 47.62 40.95
1958 35.21 35.30 42.93 53.75 63.45 70.69 74.09 73.38 66.44 58.53 46.79 39.35
1959 35.92 40.42 47.65 56.74 65.76 72.36 75.63 74.37 68.56 57.39 47.09 39.53
1960 36.75 34.85 42.10 51.00 63.96 69.51 74.16 73.23 67.16 57.46 44.33 34.86
1961 31.69 37.76 45.01 52.37 60.10 68.59 73.37 74.11 68.20 59.77 47.48 38.76
1962 33.83 35.98 43.49 54.64 64.45 70.45 72.21 70.06 65.37 55.35 44.59 35.07
1963 30.62 36.06 45.20 56.10 63.96 69.95 73.73 71.61 66.38 57.61 45.49 37.17
1964 32.66 38.20 44.17 54.54 63.91 71.82 74.32 72.45 64.42 56.84 47.19 40.54
1965 35.48 36.34 42.71 53.88 63.45 71.24 73.13 73.25 66.03 57.00 46.68 38.31
1966 33.83 36.06 43.05 52.36 61.12 69.98 74.24 72.45 64.80 55.54 45.02 39.73
1967 34.76 37.91 44.06 52.61 61.84 67.83 72.75 70.14 63.46 53.30 45.06 36.82
1968 33.52 36.64 45.35 54.59 62.62 69.37 74.85 73.45 67.39 57.89 46.79 37.58
1969 33.49 35.83 44.65 54.09 64.65 71.06 74.08 72.08 65.28 55.67 44.44 34.75
1970 31.67 34.10 43.29 53.24 64.12 71.18 74.19 73.67 68.10 58.97 47.67 37.84
1971 34.10 35.38 43.28 51.73 62.49 69.57 73.39 72.22 68.25 59.41 50.90 42.35
1972 38.29 38.43 43.93 53.45 61.15 68.17 71.69 71.97 64.83 54.93 46.02 40.08
1973 37.57 40.11 46.34 54.82 63.24 70.46 75.22 74.03 68.15 59.02 47.84 42.07
1974 37.85 41.10 46.12 55.19 62.43 68.75 72.52 71.83 64.65 55.77 46.86 40.99
1975 37.78 38.47 43.14 52.28 62.53 70.42 74.02 71.74 66.97 58.52 48.89 39.04
1976 36.66 41.03 50.02 55.85 63.70 69.54 73.60 71.65 63.74 52.71 41.22 31.77
1977 30.06 36.26 48.19 58.28 65.05 71.87 75.17 75.08 67.06 57.49 45.69 36.82
1978 30.21 32.24 41.08 52.23 62.87 69.24 74.35 73.43 66.99 57.72 47.77 40.20
1979 32.68 34.88 42.31 54.63 62.13 68.90 72.57 72.06 65.39 57.37 48.03 41.05
1980 34.67 35.40 42.51 53.69 63.63 70.87 74.96 75.24 67.74 56.70 44.69 36.04
1981 34.21 36.35 46.26 53.92 64.77 70.62 74.02 71.35 63.69 55.24 44.41 35.68
1982 32.43 35.88 44.46 54.38 63.24 71.13 72.73 71.78 65.20 57.56 49.36 41.73
1983 37.62 38.80 44.67 53.17 61.83 70.51 75.60 74.51 67.40 57.24 45.50 36.51
1984 34.65 36.68 44.54 51.60 63.06 69.99 74.16 71.39 67.69 57.38 50.55 39.41
1985 37.01 37.52 47.36 56.69 64.78 70.29 72.98 72.43 67.05 60.16 48.85 40.30
1986 34.62 38.28 46.02 55.82 65.48 72.56 74.87 72.70 66.47 57.54 47.39 38.33
1987 35.08 38.00 44.77 54.41 63.89 73.02 76.98 75.46 66.05 57.09 47.16 39.31
1988 35.07 37.29 45.80 54.72 63.22 71.07 75.71 73.77 65.17 54.97 45.11 40.64
1989 37.20 39.99 44.82 53.06 63.01 70.45 74.24 72.13 66.36 57.35 43.13 37.65
1990 36.72 44.84 49.05 55.34 63.06 70.44 74.03 72.61 66.84 59.35 51.08 43.28
1991 40.08 41.70 48.34 57.87 66.45 73.59 75.37 73.68 66.90 57.02 48.06 41.02
1992 38.95 39.50 45.72 52.56 60.89 68.07 71.65 71.25 63.51 55.32 45.70 40.34
1993 36.70 37.53 42.80 52.75 63.42 71.89 75.33 74.42 66.44 56.92 45.96 37.08
1994 33.77 36.73 47.18 55.11 65.31 70.88 74.27 71.08 63.63 56.55 48.40 42.23
1995 36.40 38.33 44.07 53.51 61.57 69.93 75.20 74.03 67.60 55.79 44.55 35.75
1996 33.30 35.53 43.05 52.04 63.22 69.51 73.47 71.46 65.59 55.03 45.59 38.04
1997 37.86 40.47 46.58 52.86 60.64 68.56 73.00 72.06 65.44 55.78 46.20 38.58

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9  10   8    0.949 0.935 0.932 0.922
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 37.6 34.7 37.0 34.6 35.1 35.1 37.2 36.7 40.1 39.0 36.7 33.8 36.4 33.3 37.9
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3
S-  7  1.4  1.9  2.2  2.3  1.9  2.2  2.2  2.2  2.7  2.5  2.3  3.4  0.6  1.9  1.2
S-  9  2.4  3.3  4.1  3.1  2.7  2.9  2.7  3.0  3.8  3.2  2.8  3.5  2.2  2.7  2.4
S- 10 -3.1 -3.9 -3.3 -4.3 -3.3 -3.1 -3.5 -4.2 -3.4 -3.8 -3.6 -3.8 -5.1 -3.9 -3.9
S-  8  5.9  8.1  8.6  8.1  6.9  7.5  7.6  7.9  8.5  7.8  7.8  9.6  6.7  7.3  6.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.22 3.29 1.79 1.85 2.03 2.09 36.31 33.45 2.86 36.34 34.28 2.06  -0.80
      9  3.21 4.27 2.77 2.93 3.07 2.94       32.62 3.69       33.35 2.99  -0.70
     10 -3.67-2.33-4.29-4.31-3.58-3.93       39.40-3.08       40.07-3.74  -0.65
      8  7.94 8.85 7.39 7.96 7.70 7.74       27.83 8.48       28.68 7.65  -0.83
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.71  2.52                   3.11  2.68 1.16  1.85  2.00 0.92   0.79
      9         2.89                         2.99 1.04        1.85 1.00   0.96
     10         2.48                         2.49 1.25        1.82 1.01   0.81
      8         2.85                         2.97 1.05        2.18 0.85   0.81
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.97(F  7 - 34.28)(0.92) + 36.34      0.97(F  9 - 33.35)(1.00) + 36.34

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.938 0.934 0.918 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.8 36.7 37.5 38.3 38.0 37.3 40.0 44.8 41.7 39.5 37.5 36.7 38.3 35.5 40.5
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd  8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6
S-  7  1.7  2.5  1.9  2.0  2.4  2.6  2.6  2.8  2.8  2.5  2.5  4.5  0.9  1.8  2.0
S- 10 -3.0 -4.0 -3.4 -4.2 -2.2 -2.5 -3.5 -3.4 -3.3 -4.2 -4.1 -4.0 -4.6 -3.9 -3.7
S-  9  2.8  2.8  4.1  2.4  2.7  3.3  1.8  2.8  3.7  2.5  2.3  3.6  2.3  2.7  2.6
S-  8  6.4  8.6  8.4  7.6  7.2  8.3  7.7  8.1  8.4  7.8  7.7 10.8  6.8  7.4  7.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.56 3.70 2.25 2.08 2.32 2.43 39.06 35.81 3.25 38.75 36.37 2.37  -0.88
     10 -3.45-2.16-3.88-4.08-3.32-3.96       41.89-2.83       42.35-3.60  -0.78
      9  3.19 4.52 2.76 2.83 2.91 2.80       35.21 3.85       35.92 2.82  -1.03
      8  8.27 9.26 7.87 8.13 7.92 8.11       30.17 8.90       30.80 7.94  -0.95
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.66  2.26                   2.79  1.94 1.44  2.25  2.33 0.96   0.67
     10         2.45                         2.14 1.30        2.25 1.00   0.77
      9         2.79                         2.46 1.13        2.36 0.95   0.84
      8         2.54                         2.13 1.31        2.53 0.89   0.68
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.97(F  7 - 36.37)(0.96) + 38.75      0.97(F 10 - 42.35)(1.00) + 38.75

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.932 0.930 0.902 0.895
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.7 44.5 47.4 46.0 44.8 45.8 44.8 49.0 48.3 45.7 42.8 47.2 44.1 43.0 46.6
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd  8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0
S-  7  1.9  2.5  2.1  2.9  2.2  3.2  2.6  2.6  2.4  3.1  2.7  4.2  1.5  1.8  2.1
S- 10 -2.6 -3.1 -3.0 -3.5 -1.6 -1.7 -3.2 -3.2 -2.9 -3.4 -3.4 -3.0 -4.5 -3.3 -2.8
S-  9  2.8  3.1  3.7  1.9  2.9  3.9  2.7  2.9  3.1  2.5  2.9  3.6  1.9  3.2  3.2
S-  8  6.4  8.1  8.1  7.3  5.9  8.7  8.1  7.6  7.3  7.8  7.5 10.3  7.4  7.2  7.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  2.74 3.71 2.58 2.36 2.47 2.53 46.12 42.80 3.32 45.65 43.14 2.51  -0.81
     10 -2.80-1.75-3.08-3.23-2.75-3.33       48.40-2.28       48.67-3.02  -0.75
      9  3.26 4.59 2.71 2.94 3.06 2.93       42.19 3.93       42.70 2.95  -0.98
      8  8.01 8.88 7.62 7.99 7.66 7.87       37.55 8.57       37.97 7.68  -0.89
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.28  1.89                   2.54  1.67 1.52  1.75  1.66 1.06   0.69
     10         1.97                         1.95 1.30        1.80 0.98   0.75
      9         2.04                         2.10 1.21        1.69 1.04   0.86
      8         2.04                         1.85 1.38        1.74 1.01   0.73
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.97(F  7 - 43.14)(1.06) + 45.65      0.96(F 10 - 48.67)(0.98) + 45.65

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9   8    0.932 0.906 0.873 0.868
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.2 51.6 56.7 55.8 54.4 54.7 53.1 55.3 57.9 52.6 52.8 55.1 53.5 52.0 52.9
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd  8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3
S- 10 -2.3 -2.7 -2.5 -1.9 -1.5 -1.0 -2.2 -2.6 -2.0 -2.5 -2.9 -2.1 -3.8 -2.9 -2.2
S-  7  1.9  2.4  1.9  2.1  1.7  2.9  2.2  2.4  2.3  2.6  1.8  3.2  1.1  2.0  2.1
S-  9  3.4  3.3  3.0  3.1  2.4  3.8  3.1  3.2  2.8  2.6  3.0  4.6  1.9  2.9  4.1
S-  8  7.1  8.3  7.1  6.6  5.2  7.4  7.3  7.2  6.4  6.6  6.1  9.1  6.4  6.9  7.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.06-1.28-2.23-2.29-2.05-2.64 55.19 56.76-1.57 54.10 56.44-2.34  -0.76
      7  2.54 3.49 2.54 2.16 2.21 2.17       52.01 3.19       51.92 2.18  -1.01
      9  3.33 4.49 2.77 3.05 3.17 3.10       51.18 4.01       50.97 3.13  -0.87
      8  7.31 8.27 7.06 7.10 7.04 7.00       47.25 7.94       47.09 7.01  -0.94
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.84  1.52                   1.96  1.54 1.28  1.74  1.62 1.08   0.84
      7         1.59                         1.43 1.37        1.74 1.00   0.73
      9         1.68                         1.70 1.15        1.83 0.95   0.83
      8         1.74                         1.57 1.25        2.03 0.86   0.68
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 56.44)(1.08) + 54.10      0.95(F  7 - 51.92)(1.00) + 54.10

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  13   9    0.933 0.915 0.892 0.885
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 61.8 63.1 64.8 65.5 63.9 63.2 63.0 63.1 66.4 60.9 63.4 65.3 61.6 63.2 60.6
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
S- 10 -1.3 -1.5 -2.0 -1.2 -1.5 -0.5 -1.6 -2.0 -1.5 -1.9 -2.0 -1.0 -3.4 -2.1 -1.1
S-  7  1.7  2.1  2.0  2.4  1.5  2.3  1.8  1.8  1.8  1.9  1.7  2.3  0.6  1.9  1.5
S- 13 -3.6 -3.6 -4.2 -4.5 -4.2 -3.3 -3.6 -4.8 -3.5 -4.3 -4.1 -3.0 -6.5 -4.8 -3.2
S-  9  3.9  3.5  3.6  3.7  2.8  3.9  4.5  3.7  2.7  2.9  3.4  4.7  1.8  3.0  4.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.42-0.91-1.52-1.49-1.48-1.84 64.52 65.60-1.08 63.32 64.96-1.64  -0.55
      7  2.14 2.96 1.98 1.92 2.04 1.66       61.88 2.63       61.50 1.82  -0.81
     13 -4.19-3.91-4.55-4.20-4.11-4.21       68.64-4.12       67.41-4.09   0.04
      9  3.60 4.32 3.02 3.55 3.72 3.29       60.56 3.95       59.81 3.51  -0.44
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.61  1.42                   1.66  1.39 1.19  1.62  1.58 1.03   0.86
      7         1.33                         1.27 1.30        1.46 1.11   0.85
     13         1.50                         1.36 1.22        1.66 0.98   0.80
      9         1.51                         1.56 1.06        1.75 0.93   0.87
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 64.96)(1.03) + 63.32      0.96(F  7 - 61.50)(1.11) + 63.32

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  38    0.923 0.918 0.916 0.905
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.5 70.0 70.3 72.6 73.0 71.1 70.4 70.4 73.6 68.1 71.9 70.9 69.9 69.5 68.6
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
S- 10 -0.8 -1.4 -1.5 -1.4 -1.0 -0.2 -1.4 -1.7 -1.2 -2.0 -1.9 -1.4 -2.3 -2.1 -1.1
S-  7  1.6  1.5  1.2  1.5  1.9  1.0  1.3  1.5  1.4  1.2  1.4  1.1  0.4  1.4  1.0
S-  9  4.4  3.8  3.7  4.0  3.4  3.9  4.1  4.1  3.2  3.0  3.6  4.2  2.8  3.0  4.0
S- 38  1.4  1.5  1.1  0.8  0.7  1.1  2.3  1.7  0.6  0.8  1.5  1.9  0.2  0.1  1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.14-0.62-1.14-1.20-1.21-1.72 71.42 72.15-0.73 70.72 72.15-1.43  -0.70
      7  1.53 2.36 1.28 1.27 1.49 1.14       69.39 2.02       69.42 1.30  -0.72
      9  3.74 4.34 3.40 3.59 3.90 3.40       67.31 4.11       67.04 3.68  -0.43
     38  0.99 1.22 0.72 0.79 1.26 0.93       70.33 1.08       69.57 1.14   0.06
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.48  1.30                   1.45  1.15 1.26  1.49  1.40 1.06   0.85
      7         1.20                         1.07 1.35        1.38 1.07   0.80
      9         1.42                         1.45 1.00        1.53 0.97   0.98
     38         1.56                         1.61 0.90        1.65 0.90   1.00
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.96(F 10 - 72.15)(1.06) + 70.72      0.96(F  7 - 69.42)(1.07) + 70.72

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38   9  10   7    0.895 0.892 0.885 0.858
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.6 74.2 73.0 74.9 77.0 75.7 74.2 74.0 75.4 71.7 75.3 74.3 75.2 73.5 73.0
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
S- 38  0.4  0.9  1.0  0.8  2.2  0.9  1.4  1.5  1.0  1.3  1.0  0.8 -0.1  1.1  1.2
S-  9  4.2  3.7  3.9  3.9  4.3  3.6  3.5  3.7  3.4  3.1  3.2  3.0  2.8  3.7  3.8
S- 10 -0.5 -1.0 -1.4 -1.8 -0.6 -0.3 -1.7 -1.8 -1.4 -2.4 -1.9 -2.0 -1.3 -1.3 -1.0
S-  7  1.3  1.1  1.0  1.5  2.3  0.8  1.0  0.9  0.7  1.0  1.0  0.3  0.8  1.1  0.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38  1.04 1.15 1.11 0.91 1.08 0.90 74.72 73.63 1.09 74.46 73.43 1.03  -0.06
      9  3.85 4.38 3.75 3.82 3.84 3.30       70.51 4.21       70.87 3.59  -0.62
     10 -1.08-0.57-1.03-1.16-1.19-1.60       75.44-0.72       75.81-1.35  -0.63
      7  1.23 1.97 0.90 1.07 1.25 0.82       73.07 1.65       73.42 1.04  -0.61
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.26  1.33                   1.29  1.30 0.99  1.29  1.39 0.93   0.94
      9         1.17                         1.06 1.21        1.25 1.03   0.85
     10         1.07                         0.93 1.39        1.08 1.20   0.87
      7         1.05                         0.92 1.41        1.18 1.09   0.78
Suggested regression eqns from two most closely related CDs ( 38 and   9): 
          0.95(F 38 - 73.43)(0.93) + 74.46      0.94(F  9 - 70.87)(1.03) + 74.46

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  38  39   9    0.898 0.870 0.866 0.856
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.5 71.4 72.4 72.7 75.5 73.8 72.1 72.6 73.7 71.3 74.4 71.1 74.0 71.5 72.1
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
S- 10 -0.9 -1.2 -1.0 -2.2 -0.8 -0.8 -1.9 -1.7 -1.7 -2.6 -1.9 -2.5 -1.1 -1.7 -1.4
S- 38  0.2  1.0  1.5 -0.2  2.7  0.4  0.8  1.1  1.3  1.4  1.6  0.7  0.7  1.0  1.3
S- 39 -2.4 -1.1 -0.6 -2.4  0.4 -1.4 -0.7 -0.9 -1.2 -0.6 -0.4 -1.0 -1.0 -0.8 -1.0
S-  9  4.3  3.9  3.9  2.9  4.6  3.0  3.1  3.5  3.5  2.9  3.3  2.7  3.7  3.8  4.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.25-0.54-1.21-1.52-1.29-1.86 73.62 74.33-0.72 72.87 74.43-1.56  -0.85
     38  1.06 1.23 1.09 0.93 0.90 1.16       72.45 1.17       71.83 1.03  -0.14
     39 -0.83-0.46-0.72-0.96-1.15-0.86       74.18-0.56       73.87-1.01  -0.45
      9  3.83 4.47 3.74 3.71 3.69 3.44       69.36 4.26       69.30 3.56  -0.69
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.44  1.24                   1.50  1.12 1.34  1.32  1.08 1.22   0.91
     38         1.54                         1.41 1.06        1.33 0.99   0.93
     39         1.60                         1.40 1.07        1.45 0.91   0.85
      9         1.38                         1.36 1.11        1.21 1.09   0.99
Suggested regression eqns from two most closely related CDs ( 10 and  38): 
          0.95(F 10 - 74.43)(1.22) + 72.87      0.93(F 38 - 71.83)(0.99) + 72.87

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10   7  11    0.917 0.910 0.887 0.878
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 67.4 67.7 67.1 66.5 66.1 65.2 66.4 66.8 66.9 63.5 66.4 63.6 67.6 65.6 65.4
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
S- 13 -3.3 -3.4 -3.2 -4.0 -2.9 -3.0 -3.0 -4.3 -2.8 -4.4 -4.1 -4.2 -3.0 -3.1 -3.6
S- 10 -1.6 -1.6 -1.8 -2.1 -1.2 -1.0 -1.8 -1.7 -1.5 -2.7 -2.2 -2.7 -1.5 -1.7 -1.6
S-  7  1.0  1.4  1.1  1.4  2.4  1.6  1.0  1.2  1.2  1.0  1.5  0.4  0.8  0.9  1.2
S- 11  1.7  1.5  1.5  0.7  2.5  2.1  2.2  1.5  1.7  0.4  1.4  0.2  2.1  1.5  1.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -3.30-2.80-3.32-3.45-3.44-3.59 67.29 70.25-2.95 66.14 69.62-3.48  -0.53
     10 -1.53-0.73-1.60-1.90-1.57-1.99       68.22-0.93       67.92-1.77  -0.84
      7  1.36 2.21 0.99 1.21 1.31 0.98       65.38 1.91       64.95 1.20  -0.71
     11  1.63 2.11 1.60 1.54 1.55 1.27       65.38 1.91       64.65 1.49  -0.41
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.64  1.44                   1.69  1.41 1.20  1.24  1.10 1.13   0.94
     10         1.42                         1.31 1.28        1.07 1.17   0.91
      7         1.41                         1.37 1.23        1.22 1.02   0.83
     11         1.43                         1.27 1.33        1.04 1.20   0.90
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.96(F 13 - 69.62)(1.13) + 66.14      0.95(F 10 - 67.92)(1.17) + 66.14

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   8  13  10    0.906 0.895 0.887 0.886
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.2 57.4 60.2 57.5 57.1 55.0 57.3 59.3 57.0 55.3 56.9 56.5 55.8 55.0 55.8
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
S-  7  0.8  1.3  1.6  1.8  2.4  1.6  1.5  2.1  1.4  1.2  1.8  0.4  0.6  1.1  1.1
S-  8  6.1  6.5  6.9  7.0  7.4  6.3  6.8  6.9  6.4  5.9  7.0  5.4  5.9  5.5  6.3
S- 13 -3.7 -4.2 -4.8 -5.5 -2.8 -3.9 -3.8 -3.5 -3.4 -4.9 -4.6 -4.3 -3.9 -3.9 -3.8
S- 10 -2.2 -2.2 -2.9 -3.1 -1.3 -1.5 -2.3 -1.4 -2.2 -3.2 -3.2 -2.9 -2.4 -2.2 -2.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.49 2.18 1.18 1.34 1.55 1.08 57.87 55.94 1.92 56.90 55.53 1.37  -0.55
      8  6.44 7.03 5.88 6.47 6.65 6.05       51.17 6.70       50.48 6.42  -0.27
     13 -3.88-3.30-3.91-4.19-3.95-4.11       61.38-3.51       60.96-4.06  -0.55
     10 -2.02-1.24-2.02-2.38-2.03-2.62       59.27-1.41       59.25-2.35  -0.95
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.65  1.45                   1.28  1.11 1.15  1.41  1.28 1.11   0.96
      8         1.60                         1.18 1.08        1.16 1.21   1.13
     13         1.52                         0.79 1.61        1.60 0.88   0.55
     10         1.52                         0.78 1.63        1.55 0.91   0.56
Suggested regression eqns from two most closely related CDs (  7 and   8): 
          0.95(F  7 - 55.53)(1.11) + 56.90      0.95(F  8 - 50.48)(1.21) + 56.90

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9  10   8    0.948 0.927 0.925 0.918
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.5 50.5 48.8 47.4 47.2 45.1 43.1 51.1 48.1 45.7 46.0 48.4 44.5 45.6 46.2
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2
S-  7  0.8  1.6  2.1  1.5  2.1  1.6  1.6  2.1  1.6  1.3  1.3  0.6  1.1  0.9  1.0
S-  9  3.3  2.9  3.0  2.9  3.7  3.9  3.8  4.4  3.6  2.9  3.1  2.1  3.5  3.0  3.9
S- 10 -3.2 -2.7 -3.7 -3.7 -1.8 -2.0 -3.4 -2.0 -2.7 -3.3 -3.5 -3.6 -3.0 -3.1 -2.3
S-  8  6.6  7.0  8.1  7.0  6.9  6.4  7.4  7.2  6.6  6.3  6.7  5.8  6.2  5.2  6.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  1.51 2.10 1.32 1.34 1.56 1.13 47.06 45.16 1.90 46.88 45.46 1.42  -0.48
      9  3.43 4.19 3.12 3.21 3.38 3.15       43.22 3.84       43.56 3.32  -0.52
     10 -2.73-2.01-2.91-3.02-2.73-3.08       49.29-2.23       49.82-2.94  -0.71
      8  6.61 7.17 6.03 6.73 6.88 6.11       40.25 6.81       40.25 6.63  -0.17
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.03  1.92                   1.61  1.48 1.08  2.13  1.99 1.07   0.99
      9         2.15                         1.54 1.04        2.26 0.94   0.90
     10         1.96                         1.43 1.12        2.11 1.01   0.90
      8         2.13                         1.66 0.97        2.02 1.05   1.09
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.97(F  7 - 45.46)(1.07) + 46.88      0.96(F  9 - 43.56)(0.94) + 46.88

Station#1875  PIEDMONT/RESEARCH ST, va  4671204    lat/lon 78.10   38.22     7M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10   7  38    0.947 0.946 0.938 0.931
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 36.5 39.4 40.3 38.3 39.3 40.6 37.7 43.3 41.0 40.3 37.1 42.2 35.8 38.0 38.6
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4
S-  9  3.3  3.6  3.6  2.5  2.9  2.6  3.3  3.8  3.9  2.3  3.4  2.4  3.1  2.9  1.3
S- 10 -3.6 -3.2 -3.9 -4.1 -2.7 -2.8 -4.1 -2.7 -3.5 -3.9 -4.1 -4.1 -3.4 -3.7 -4.9
S-  7  1.5  1.7  2.0  1.4  2.3  1.8  1.8  3.0  1.9  1.3  2.1  0.3  1.9  1.0 -1.4
S- 38  2.1  2.2  2.3  0.7  0.7  0.0  1.2  2.3  1.9  0.9  2.2  0.7  1.5  1.0 -0.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  3.28 4.10 2.99 3.24 3.15 2.75 39.15 35.43 3.72 39.23 36.24 2.99  -0.73
     10 -3.43-2.59-3.73-3.69-3.33-3.97       42.12-2.97       42.90-3.67  -0.69
      7  1.76 2.53 1.57 1.64 1.80 1.03       36.91 2.24       37.72 1.51  -0.73
     38  1.41 1.95 1.11 1.60 1.21 1.06       37.37 1.77       37.97 1.26  -0.52
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.46  2.64                   2.28  2.20 1.04  2.04  2.10 0.97   0.93
     10         2.36                         1.90 1.20        1.95 1.05   0.87
      7         2.43                         1.96 1.16        2.15 0.95   0.81
     38         2.70                         2.22 1.03        2.24 0.91   0.88
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.97(F  9 - 36.24)(0.97) + 39.23      0.97(F 10 - 42.90)(1.05) + 39.23

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 40.75 43.00 48.34 55.97 65.14 72.43 76.26 74.85 69.12 58.85 49.39 42.95
1952 42.03 43.66 48.88 56.55 66.99 74.40 78.11 75.36 66.88 57.88 47.92 43.76
1953 41.77 44.90 50.02 59.27 68.25 75.52 77.47 75.77 69.28 59.69 50.55 42.94
1954 41.68 43.21 51.09 56.99 66.20 72.01 76.66 76.61 71.10 60.90 48.85 39.91
1955 37.93 42.07 50.58 59.35 66.01 72.87 76.74 76.90 69.55 58.83 46.91 38.98
1956 37.80 41.71 48.28 55.51 64.97 72.39 76.32 74.10 68.42 58.80 52.49 43.83
1957 42.43 41.84 50.77 58.78 68.47 74.11 76.40 74.98 66.95 58.86 49.29 42.55
1958 37.22 36.97 44.72 55.15 64.83 72.42 76.02 75.30 68.04 59.64 47.71 40.57
1959 37.33 42.11 49.52 58.63 67.83 74.00 77.25 75.97 70.39 59.82 50.10 42.47
1960 39.87 37.90 45.58 54.07 66.76 71.58 75.85 74.39 67.92 58.77 47.21 39.24
1961 36.55 42.10 48.79 55.78 63.09 71.59 76.14 76.40 69.52 60.57 48.43 41.15
1962 37.71 40.41 47.53 57.68 67.40 73.10 74.46 71.90 67.07 57.94 47.88 39.60
1963 35.11 40.20 48.12 57.96 65.03 70.66 74.60 72.48 66.60 58.06 46.99 40.06
1964 35.83 40.99 46.81 56.45 64.95 71.71 73.94 71.98 64.44 57.24 49.21 43.21
1965 39.09 39.12 45.35 55.50 64.77 71.74 73.85 73.85 67.49 58.28 48.52 40.11
1966 36.67 38.81 46.17 54.44 62.39 70.25 74.14 72.76 65.73 57.36 47.62 42.72
1967 37.98 40.95 46.97 55.30 63.77 69.74 74.73 72.66 66.10 55.63 47.72 39.86
1968 36.69 40.13 48.51 58.46 66.03 72.71 77.49 76.24 70.54 61.39 50.05 40.60
1969 35.85 37.68 45.72 55.09 66.25 73.10 76.32 73.86 67.21 57.80 46.91 37.32
1970 34.08 36.62 46.20 56.68 67.66 74.31 77.32 77.02 71.87 62.54 51.08 41.26
1971 37.82 39.23 46.42 54.20 64.25 71.46 75.53 74.48 70.42 61.52 53.74 45.68
1972 42.17 41.89 47.09 55.96 63.61 70.56 74.14 74.15 66.98 57.88 49.84 43.70
1973 40.69 43.01 49.93 58.53 66.32 72.77 76.94 75.75 70.09 61.35 50.84 45.88
1974 42.28 45.58 50.33 58.64 65.39 71.04 74.39 73.36 66.13 57.06 48.53 43.60
1975 41.27 42.49 46.61 55.31 64.75 72.39 76.11 74.72 70.19 61.79 51.99 42.77
1976 41.03 45.33 53.89 59.39 66.72 72.33 75.85 73.92 66.20 55.24 44.61 34.78
1977 33.90 39.75 52.02 60.99 67.44 74.18 78.10 78.48 70.38 61.20 49.65 41.58
1978 34.51 36.24 44.35 55.77 65.83 72.52 77.43 76.85 70.40 61.20 51.08 43.71
1979 36.06 39.02 46.45 58.85 65.45 71.60 75.20 75.25 68.98 60.80 51.22 44.65
1980 39.06 40.81 48.27 58.86 67.37 73.68 77.87 78.48 70.71 59.22 47.23 38.55
1981 37.13 39.18 49.19 56.36 67.48 73.80 77.49 74.71 66.92 58.25 47.78 39.42
1982 36.92 40.76 49.03 58.48 66.59 74.12 75.65 74.46 67.96 60.26 52.39 45.15
1983 41.02 42.52 48.75 57.55 65.91 73.64 77.55 75.34 68.15 58.58 47.71 39.15
1984 37.60 40.12 47.90 54.88 66.28 72.98 76.88 73.53 70.22 60.13 53.54 42.23
1985 40.13 40.83 50.86 59.90 68.10 73.75 76.91 75.78 70.25 63.30 52.25 43.35
1986 37.68 41.89 49.72 58.66 67.38 74.58 77.05 75.33 68.90 60.57 50.58 41.47
1987 37.52 39.65 46.28 56.20 65.77 74.76 78.52 77.37 67.79 58.70 48.99 42.06
1988 38.07 39.74 47.73 56.54 64.83 72.78 77.51 76.09 67.22 57.46 47.73 43.94
1989 40.35 43.36 47.93 55.94 65.33 72.59 76.37 74.63 68.76 60.07 46.88 42.17
1990 41.62 48.78 52.74 58.58 66.22 73.53 77.08 75.28 69.62 61.73 53.98 46.27
1991 43.47 45.03 51.80 61.00 69.18 76.00 78.19 76.98 69.96 60.30 51.22 44.75
1992 42.52 43.52 49.26 55.54 63.42 70.66 74.69 74.50 66.69 59.00 49.25 44.23
1993 40.09 41.78 46.68 56.47 66.20 75.03 78.67 77.86 69.82 60.63 49.45 40.97
1994 37.43 40.84 50.95 58.34 68.05 74.05 78.18 75.30 67.36 59.77 51.94 46.23
1995 41.74 43.30 49.19 57.99 65.96 73.54 77.95 76.31 69.68 58.14 46.97 37.87
1996 35.77 38.39 46.35 55.27 65.88 72.03 75.20 73.59 67.71 57.39 48.65 41.48
1997 41.62 43.62 49.06 55.34 62.59 70.67 75.03 74.67 68.31 58.57 48.47 40.97

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.967 0.945 0.945 0.922
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.0 37.6 40.1 37.7 37.5 38.1 40.3 41.6 43.5 42.5 40.1 37.4 41.7 35.8 41.6
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S- 10  0.3 -0.9 -0.2 -1.3 -0.8 -0.1 -0.3  0.7  0.0 -0.2 -0.2 -0.1  0.3 -1.5 -0.2
S-  7  4.8  4.8  5.3  5.3  4.4  5.2  5.3  7.0  6.1  6.1  5.7  7.1  5.9  4.4  4.9
S-  9  5.8  6.2  7.3  6.2  5.1  5.9  5.8  7.9  7.2  6.8  6.2  7.1  7.6  5.1  6.2
S- 13 -2.3 -4.2 -3.3 -4.9 -3.9 -2.8 -3.9 -3.0 -2.4 -3.5 -2.8 -3.6 -1.9 -5.1 -3.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.47-0.49-0.88-0.42-0.24-0.27 38.87 39.40-0.52 39.78 40.07-0.30   0.22
      7  5.42 5.13 5.19 5.74 5.37 5.75       33.45 5.42       34.28 5.50   0.08
      9  6.41 6.11 6.17 6.82 6.42 6.59       32.62 6.25       33.35 6.43   0.17
     13 -3.79-4.04-4.31-3.68-3.55-3.20       42.99-4.11       43.16-3.38   0.73
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.54  2.48                   2.32  2.49 0.93  2.20  1.82 1.21   1.30
      7         2.52                         2.68 0.87        2.00 1.10   1.27
      9         2.89                         2.99 0.78        1.85 1.19   1.53
     13         2.54                         2.78 0.83        1.66 1.32   1.59
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.98(F 10 - 40.07)(1.21) + 39.78      0.97(F  7 - 34.28)(1.10) + 39.78

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13   7    0.966 0.935 0.921 0.920
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.5 40.1 40.8 41.9 39.7 39.7 43.4 48.8 45.0 43.5 41.8 40.8 43.3 38.4 43.6
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
S- 10  0.7 -0.5 -0.1 -0.6 -0.6 -0.1 -0.2  0.6  0.1 -0.1  0.2  0.1  0.4 -1.0 -0.6
S-  9  6.5  6.3  7.4  6.0  4.3  5.8  5.2  6.8  7.0  6.5  6.5  7.7  7.3  5.6  5.7
S- 13 -1.9 -5.0 -3.8 -4.8 -4.2 -3.3 -4.3 -2.6 -3.0 -3.6 -3.0 -4.5 -2.7 -5.0 -5.3
S-  7  5.5  5.9  5.2  5.6  4.1  5.1  6.0  6.7  6.1  6.5  6.8  8.6  5.8  4.7  5.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.31-0.58-0.67-0.08 0.00-0.15 41.35 41.89-0.54 42.22 42.35-0.12   0.42
      9  6.33 6.10 5.97 6.83 6.23 6.62       35.21 6.13       35.92 6.30   0.17
     13 -4.11-4.47-4.42-3.91-3.80-3.87       45.76-4.42       46.03-3.81   0.61
      7  5.71 5.27 5.46 6.09 5.64 6.25       35.81 5.54       36.37 5.85   0.31
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.51  2.45                   2.07  2.14 0.97  2.49  2.25 1.11   1.14
      9         2.79                         2.46 0.84        2.36 1.05   1.25
     13         2.57                         2.47 0.84        2.21 1.13   1.34
      7         2.26                         1.94 1.07        2.33 1.07   1.00
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.35)(1.11) + 42.22      0.97(F  9 - 35.92)(1.05) + 42.22

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.947 0.918 0.899 0.874
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.8 47.9 50.9 49.7 46.3 47.7 47.9 52.7 51.8 49.3 46.7 51.0 49.2 46.3 49.1
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10  1.4  0.3  0.5  0.2 -0.1  0.2 -0.1  0.4  0.5  0.1  0.5  0.7  0.6  0.0 -0.3
S-  7  5.9  5.9  5.6  6.6  3.7  5.1  5.7  6.2  5.9  6.6  6.6  7.9  6.6  5.1  4.6
S-  9  6.9  6.5  7.2  5.6  4.4  5.8  5.8  6.6  6.6  6.1  6.8  7.4  7.0  6.5  5.7
S- 13 -1.3 -3.4 -2.9 -4.5 -3.7 -3.4 -4.3 -2.7 -3.0 -3.2 -2.3 -3.0 -3.4 -3.7 -4.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.23-0.09-0.16 0.61 0.49 0.32 48.29 48.40-0.10 49.01 48.67 0.34   0.44
      7  5.77 5.37 5.50 6.21 5.70 6.18       42.80 5.49       43.14 5.87   0.38
      9  6.29 6.25 5.63 6.78 6.29 6.58       42.19 6.10       42.70 6.31   0.21
     13 -3.55-3.71-4.19-3.18-3.26-3.33       52.13-3.83       52.32-3.30   0.53
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.13  1.97                   1.93  1.95 0.99  1.89  1.80 1.05   1.06
      7         1.89                         1.67 1.16        1.66 1.14   0.98
      9         2.04                         2.10 0.92        1.69 1.12   1.22
     13         1.96                         2.04 0.95        1.92 0.99   1.04
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 48.67)(1.05) + 49.01      0.96(F  7 - 43.14)(1.14) + 49.01

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9   8    0.913 0.902 0.837 0.817
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.5 54.9 59.9 58.7 56.2 56.5 55.9 58.6 61.0 55.5 56.5 58.3 58.0 55.3 55.3
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd  8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3
S- 10  2.1  0.6  0.7  1.0  0.2  0.8  0.7  0.7  1.1  0.4  0.8  1.1  0.7  0.4  0.3
S-  7  6.2  5.7  5.1  5.0  3.5  4.7  5.1  5.7  5.5  5.6  5.6  6.4  5.6  5.3  4.6
S-  9  7.8  6.6  6.2  6.0  4.2  5.6  5.9  6.4  5.9  5.5  6.7  7.8  6.4  6.1  6.5
S-  8 11.4 11.6 10.3  9.4  7.0  9.2 10.2 10.5  9.5  9.6  9.9 12.3 10.9 10.1 10.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.63 0.11 0.26 1.14 0.95 0.69 56.91 56.76 0.14 57.21 56.44 0.78   0.63
      7  5.23 4.89 5.03 5.60 5.21 5.49       52.01 4.90       51.92 5.29   0.39
      9  6.02 5.89 5.26 6.48 6.17 6.42       51.18 5.73       50.97 6.25   0.52
      8 10.00 9.66 9.5510.5410.0410.32       47.25 9.66       47.0910.12   0.46
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.78  1.52                   1.58  1.54 1.03  1.76  1.62 1.09   1.06
      7         1.59                         1.43 1.10        1.74 1.02   0.92
      9         1.68                         1.70 0.92        1.83 0.96   1.04
      8         1.74                         1.57 1.00        2.03 0.87   0.86
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.96(F 10 - 56.44)(1.09) + 57.21      0.95(F  7 - 51.92)(1.02) + 57.21

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12   4    0.889 0.883 0.815 0.789
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 65.9 66.3 68.1 67.4 65.8 64.8 65.3 66.2 69.2 63.4 66.2 68.1 66.0 65.9 62.6
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd  4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9
S- 10  2.7  1.7  1.4  0.6  0.4  1.1  0.7  1.2  1.3  0.7  0.8  1.7  1.0  0.6  0.9
S-  7  5.8  5.3  5.3  4.3  3.4  3.9  4.1  5.0  4.5  4.4  4.4  5.0  5.0  4.6  3.5
S- 12 -1.1 -2.5 -2.6 -3.6 -3.3 -3.0 -3.6 -3.6 -2.8 -3.5 -2.7 -1.8 -4.2 -3.9 -3.6
S-  4  9.8 10.1 11.4  9.6  8.2  8.5  9.0 10.4  9.2  8.4  8.9 10.5 10.3  9.6  7.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.92 0.45 0.59 1.31 1.27 0.99 66.05 65.60 0.45 66.07 64.96 1.12   0.67
      7  4.48 4.32 4.09 4.71 4.79 4.49       61.88 4.16       61.50 4.57   0.41
     12 -3.32-3.62-3.72-3.05-2.93-3.22       69.77-3.72       69.13-3.06   0.66
      4  9.45 9.57 9.16 9.42 9.80 9.24       56.71 9.34       56.63 9.44   0.10
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.55  1.42                   1.49  1.39 1.07  1.65  1.58 1.04   0.98
      7         1.33                         1.27 1.17        1.46 1.13   0.97
     12         1.33                         1.16 1.28        1.56 1.06   0.83
      4         1.27                         1.27 1.17        1.24 1.33   1.14
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.94(F 10 - 64.96)(1.04) + 66.07      0.94(F  7 - 61.50)(1.13) + 66.07

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   7    0.884 0.846 0.795 0.795
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.6 73.0 73.8 74.6 74.8 72.8 72.6 73.5 76.0 70.7 75.0 74.1 73.5 72.0 70.7
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
S- 10  2.3  1.6  2.0  0.6  0.8  1.5  0.8  1.4  1.2  0.6  1.2  1.8  1.3  0.4  1.0
S- 12 -1.1 -1.8 -1.9 -3.0 -1.7 -1.3 -2.6 -2.8 -1.5 -3.5 -2.1 -1.0 -2.3 -4.0 -2.6
S- 13  0.0 -0.1 -0.1 -2.2 -1.1 -0.1 -0.3 -1.0  0.1 -1.5 -1.1  0.5 -0.8 -2.6 -0.8
S-  7  4.7  4.5  4.7  3.5  3.6  2.7  3.5  4.6  3.8  3.8  4.5  4.2  4.0  3.9  3.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.00 0.63 0.61 1.27 1.43 1.07 72.70 72.15 0.56 73.37 72.15 1.22   0.67
     12 -2.38-2.64-2.66-2.18-2.01-2.43       75.47-2.76       75.59-2.22   0.55
     13 -1.17-1.90-1.56-0.80-0.63-0.89       74.61-1.91       74.11-0.74   1.17
      7  3.68 3.62 3.03 3.74 4.13 3.93       69.39 3.31       69.42 3.95   0.64
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.43  1.30                   1.26  1.15 1.10  1.45  1.40 1.03   0.94
     12         1.23                         1.04 1.22        1.25 1.16   0.95
     13         1.48                         1.32 0.96        1.49 0.97   1.01
      7         1.20                         1.07 1.18        1.38 1.04   0.89
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.94(F 10 - 72.15)(1.03) + 73.37      0.92(F 12 - 75.59)(1.16) + 73.37

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.869 0.788 0.775 0.747
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 77.6 76.9 76.9 77.1 78.5 77.5 76.4 77.1 78.2 74.7 78.7 78.2 77.9 75.2 75.0
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
S- 10  1.4  1.7  2.5  0.4  1.0  1.5  0.5  1.3  1.4  0.7  1.5  1.9  1.4  0.4  1.0
S- 12 -1.2 -1.1 -1.1 -3.0 -1.3 -0.8 -2.3 -2.3 -0.9 -3.2 -1.4 -0.3 -0.8 -2.7 -1.8
S-  9  6.1  6.4  7.8  6.0  5.8  5.4  5.6  6.8  6.2  6.2  6.5  6.9  5.6  5.4  5.9
S- 13 -0.5  0.3  0.6 -2.2 -0.5  0.1 -0.4 -1.0  0.6 -1.1 -0.7  1.2  0.1 -1.6 -0.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.02 0.74 0.58 1.24 1.37 1.20 76.00 75.44 0.57 77.05 75.81 1.25   0.68
     12 -1.78-1.99-2.13-1.45-1.66-1.61       78.24-2.23       78.68-1.62   0.61
      9  5.95 5.69 5.36 6.22 6.41 6.11       70.51 5.49       70.87 6.18   0.69
     13 -0.73-1.44-1.01-0.33-0.47-0.28       77.48-1.47       77.42-0.37   1.10
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.33  1.07                   1.23  0.93 1.32  1.22  1.08 1.13   0.86
     12         1.03                         0.92 1.33        0.88 1.39   1.04
      9         1.17                         1.06 1.16        1.25 0.97   0.84
     13         1.24                         1.16 1.06        1.16 1.05   0.99
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.93(F 10 - 75.81)(1.13) + 77.05      0.89(F 12 - 78.68)(1.39) + 77.05

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9   7    0.895 0.828 0.822 0.787
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.3 73.5 75.8 75.3 77.4 76.1 74.6 75.3 77.0 74.5 77.9 75.3 76.3 73.6 74.7
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
S- 10 -0.1  0.9  2.3  0.5  1.1  1.5  0.6  1.0  1.6  0.6  1.5  1.7  1.2  0.4  1.2
S- 12 -3.0 -2.2 -0.9 -3.3 -1.5 -1.6 -2.5 -2.9 -1.0 -3.3 -1.4 -1.0 -1.4 -3.2 -2.3
S-  9  5.2  6.1  7.3  5.5  6.5  5.4  5.6  6.2  6.8  6.2  6.7  6.9  5.9  5.9  6.8
S-  7  2.0  3.1  4.1  3.6  4.6  3.2  3.2  4.0  4.3  4.4  4.8  4.1  3.2  2.9  3.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.86 0.61 0.38 1.10 1.15 1.18 74.72 74.33 0.39 75.50 74.43 1.07   0.69
     12 -2.14-2.28-2.59-1.73-2.08-1.95       77.28-2.56       77.61-2.10   0.46
      9  5.94 5.61 5.33 6.33 6.13 6.48       69.36 5.36       69.30 6.20   0.84
      7  3.35 3.20 2.48 3.72 3.59 3.93       71.85 2.87       71.81 3.69   0.82
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.56  1.24                   1.56  1.12 1.40  1.22  1.08 1.13   0.81
     12         1.09                         0.92 1.68        0.97 1.26   0.75
      9         1.38                         1.36 1.15        1.21 1.01   0.88
      7         1.19                         1.31 1.18        1.04 1.17   0.99
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.95(F 10 - 74.43)(1.13) + 75.50      0.91(F 12 - 77.61)(1.26) + 75.50

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.900 0.841 0.839 0.823
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.2 70.2 70.3 68.9 67.8 67.2 68.8 69.6 70.0 66.7 69.8 67.4 69.7 67.7 68.3
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
S- 10 -0.8  1.0  1.4  0.3  0.5  1.1  0.7  1.1  1.5  0.5  1.2  1.0  0.6  0.4  1.3
S-  9  4.5  5.9  6.6  5.6  5.9  5.8  6.1  6.5  6.5  5.7  6.5  6.1  5.5  5.6  7.1
S-  7  1.8  4.0  4.3  3.8  4.1  3.6  3.4  4.0  4.2  4.2  4.9  4.1  2.8  3.1  4.0
S- 13 -2.5 -0.8 -0.1 -1.6 -1.1 -1.0 -0.6 -1.5  0.3 -1.2 -0.7 -0.5 -0.9 -1.0 -0.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.53 0.14 0.11 0.77 0.82 0.93 68.18 68.22-0.04 68.70 67.92 0.78   0.82
      9  5.76 5.32 5.23 6.26 5.95 6.15       63.15 5.03       62.70 6.00   0.97
      7  3.42 3.08 2.70 3.88 3.70 3.90       65.38 2.80       64.95 3.75   0.95
     13 -1.24-1.93-1.61-0.78-1.05-0.67       70.25-2.06       69.62-0.93   1.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.67  1.42                   1.65  1.31 1.26  1.15  1.07 1.07   0.86
      9         1.50                         1.33 1.24        1.10 1.05   0.84
      7         1.41                         1.37 1.20        1.22 0.94   0.78
     13         1.44                         1.41 1.17        1.10 1.04   0.89
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.95(F 10 - 67.92)(1.07) + 68.70      0.92(F  9 - 62.70)(1.05) + 68.70

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  12    0.926 0.878 0.870 0.852
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 58.6 60.1 63.3 60.6 58.7 57.5 60.1 61.7 60.3 59.0 60.6 59.8 58.1 57.4 58.6
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8
S- 10 -0.9  0.6  0.2 -0.1  0.3  1.0  0.4  1.0  1.1  0.4  0.5  0.3 -0.1  0.1  0.6
S-  9  5.0  6.2  5.8  5.7  6.0  6.4  6.7  6.6  6.9  6.0  6.9  5.6  6.1  6.3  7.1
S- 13 -2.3 -1.4 -1.7 -2.5 -1.1 -1.4 -1.0 -1.1 -0.1 -1.2 -0.9 -1.0 -1.6 -1.6 -1.0
S- 12 -5.2 -3.4 -5.2 -5.8 -4.2 -4.7 -4.5 -3.9 -2.8 -4.6 -4.3 -4.2 -4.8 -4.8 -4.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.18-0.18-0.13 0.38 0.48 0.43 58.94 59.27-0.33 59.62 59.25 0.37   0.70
      9  5.89 5.58 5.31 6.24 6.09 6.41       53.73 5.21       53.41 6.21   1.00
     13 -1.67-2.23-2.02-1.43-1.44-1.06       61.38-2.44       60.96-1.33   1.10
     12 -4.29-4.54-4.32-4.03-4.29-4.25       63.61-4.67       64.06-4.43   0.23
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.72  1.52                   0.99  0.78 1.26  1.55  1.55 1.00   0.80
      9         1.66                         0.90 1.09        1.63 0.95   0.87
     13         1.52                         0.79 1.24        1.60 0.97   0.78
     12         1.57                         0.77 1.28        1.65 0.94   0.73
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 59.25)(1.00) + 59.62      0.94(F  9 - 53.41)(0.95) + 59.62

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.965 0.944 0.931 0.924
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 47.7 53.5 52.3 50.6 49.0 47.7 46.9 54.0 51.2 49.3 49.5 51.9 47.0 48.7 48.5
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
S- 10 -1.0  0.3 -0.3 -0.5  0.0  0.6  0.4  0.9  0.5  0.2  0.0 -0.1 -0.6  0.0 -0.1
S-  9  5.5  5.9  6.4  6.1  5.5  6.5  7.5  7.2  6.8  6.4  6.6  5.6  5.9  6.0  6.2
S-  7  3.0  4.6  5.5  4.7  3.9  4.2  5.4  5.0  4.8  4.9  4.8  4.2  3.5  4.0  3.3
S- 13 -3.0 -2.0 -2.6 -2.8 -1.8 -1.9 -2.4 -0.8 -1.2 -1.4 -1.3 -1.6 -2.7 -1.8 -1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.14-0.41-0.51 0.06 0.20-0.01 48.76 49.29-0.53 49.84 49.82 0.02   0.55
      9  6.01 5.79 5.52 6.29 6.31 6.22       43.22 5.55       43.56 6.28   0.73
      7  4.10 3.70 3.72 4.43 4.49 4.20       45.16 3.60       45.46 4.38   0.78
     13 -2.24-2.75-2.76-1.89-2.02-1.62       51.66-2.90       51.75-1.91   0.99
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.08  1.96                   1.45  1.43 1.02  2.22  2.11 1.05   1.04
      9         2.15                         1.54 0.94        2.26 0.98   1.05
      7         1.92                         1.48 0.98        1.99 1.12   1.14
     13         1.84                         1.31 1.10        2.05 1.08   0.98
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 49.82)(1.05) + 49.84      0.97(F  9 - 43.56)(0.98) + 49.84

Station#1876  RICHMOND/R E BYRD IN, va  4720101    lat/lon 77.33   37.50     1M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.963 0.941 0.928 0.922
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.2 42.2 43.3 41.5 42.1 43.9 42.2 46.3 44.8 44.2 41.0 46.2 37.9 41.5 41.0
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
S- 10 -1.0 -0.3 -0.9 -1.0  0.0  0.5  0.4  0.3  0.2  0.0 -0.2 -0.1 -1.3 -0.3 -2.6
S-  9  5.9  6.4  6.7  5.6  5.6  5.9  7.8  6.8  7.6  6.2  7.3  6.4  5.3  6.3  3.7
S-  7  4.1  4.5  5.0  4.5  5.0  5.1  6.4  6.0  5.7  5.2  6.0  4.3  4.0  4.5  1.0
S- 12 -7.4 -5.8 -6.8 -8.3 -5.8 -5.9 -6.1 -5.4 -4.5 -6.4 -6.5 -5.4 -7.9 -6.9 -8.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.46-0.61-0.80-0.24-0.09-0.62 41.42 42.12-0.70 42.48 42.90-0.42   0.28
      9  6.25 6.08 5.92 6.69 6.39 6.11       35.43 5.99       36.24 6.23   0.24
      7  4.73 4.52 4.50 5.09 5.04 4.38       36.91 4.51       37.72 4.76   0.24
     12 -6.42-6.56-6.58-6.23-6.24-6.50       48.06-6.64       48.94-6.46   0.18
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.46  2.36                   1.68  1.90 0.88  2.29  1.95 1.18   1.33
      9         2.64                         2.20 0.76        2.10 1.09   1.43
      7         2.43                         1.96 0.86        2.15 1.07   1.25
     12         2.40                         2.02 0.83        1.66 1.38   1.66
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.90)(1.18) + 42.48      0.97(F  9 - 36.24)(1.09) + 42.48

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 38.84 41.24 46.67 54.70 63.84 71.01 74.86 73.33 68.02 56.56 46.67 40.55
1952 40.78 43.08 47.82 55.51 66.39 73.70 76.46 72.89 64.84 56.21 47.10 42.73
1953 41.10 43.91 48.58 57.93 66.92 74.59 76.57 74.70 68.80 59.12 49.22 41.31
1954 40.17 42.37 50.24 55.53 64.85 70.53 75.59 75.06 68.89 58.05 46.43 38.37
1955 37.12 41.06 49.48 58.70 65.30 71.86 75.04 75.28 67.98 57.17 45.65 37.97
1956 37.04 41.05 47.20 55.08 63.85 71.38 74.74 72.96 67.13 57.11 50.83 43.01
1957 42.26 41.43 49.60 57.56 67.03 72.57 74.61 72.92 65.18 56.66 47.53 40.76
1958 35.52 35.60 43.20 53.89 64.08 71.51 75.02 73.83 66.70 58.47 47.14 40.05
1959 36.88 40.76 48.41 57.55 67.01 73.17 76.65 75.53 69.63 58.21 48.50 41.24
1960 38.58 36.16 43.51 52.34 65.41 70.66 75.55 74.45 68.67 58.69 46.24 37.63
1961 35.36 41.46 47.56 54.20 61.25 69.75 74.51 74.70 68.53 59.78 48.22 40.59
1962 37.57 39.74 45.89 55.74 65.40 72.15 73.64 71.18 66.19 56.43 45.91 36.98
1963 32.75 38.38 47.10 57.55 65.28 70.71 73.89 71.65 66.78 58.36 46.48 38.68
1964 34.41 39.86 46.40 56.87 66.26 72.57 74.81 72.27 64.90 57.28 48.34 42.26
1965 37.48 38.14 44.55 55.33 64.65 70.93 72.61 72.59 66.55 57.66 48.31 39.76
1966 35.73 37.50 44.62 53.82 61.94 70.72 74.00 72.35 64.52 55.90 46.49 41.86
1967 37.89 41.57 47.70 55.43 62.69 67.50 72.09 69.80 63.50 53.75 46.48 39.17
1968 36.07 39.46 47.36 56.71 63.36 69.73 74.06 72.59 66.45 57.39 46.36 37.90
1969 34.30 36.70 45.17 54.28 65.12 71.32 74.17 72.08 65.55 55.92 44.90 35.86
1970 33.27 36.32 45.42 55.22 65.39 71.89 74.35 74.26 68.72 59.51 48.66 39.96
1971 37.58 38.83 46.16 53.47 63.15 69.17 72.90 71.98 68.12 59.10 50.95 43.37
1972 40.36 40.47 45.79 54.34 61.71 67.97 71.74 71.72 64.25 55.00 47.37 42.35
1973 39.28 41.52 47.15 55.32 62.86 70.05 75.06 74.08 68.59 59.73 48.86 44.16
1974 40.83 45.18 49.20 57.40 63.19 68.97 72.04 70.96 64.38 55.65 47.03 41.85
1975 39.59 40.73 45.22 53.85 63.64 70.80 74.35 72.73 67.83 59.19 49.91 40.95
1976 39.46 43.57 51.70 56.81 63.21 68.71 72.03 70.43 62.45 51.83 41.56 32.60
1977 31.32 37.62 49.65 59.82 66.03 72.97 76.24 75.99 67.19 57.44 45.95 37.26
1978 31.08 33.94 43.61 54.69 64.21 70.77 75.40 74.97 67.56 58.22 47.62 39.99
1979 33.53 36.67 44.93 56.03 62.94 68.85 72.28 71.30 64.96 56.81 48.35 42.55
1980 37.52 38.41 44.85 54.98 63.84 70.96 75.01 75.48 67.85 57.40 46.51 38.61
1981 36.22 37.74 46.75 54.14 64.43 70.28 74.48 71.91 64.36 54.96 43.86 35.43
1982 32.94 37.08 44.63 54.40 62.84 71.03 72.66 71.23 65.14 56.97 49.19 41.85
1983 38.20 39.79 45.48 53.46 61.15 69.36 75.04 74.41 67.70 57.42 46.36 38.41
1984 37.21 40.08 47.05 53.55 63.83 70.12 73.91 70.61 67.61 58.18 52.52 41.39
1985 38.98 40.05 50.46 59.67 67.17 72.04 74.32 72.93 67.48 61.35 50.23 41.77
1986 36.14 40.28 48.28 56.56 65.56 72.24 75.12 73.42 66.73 58.42 48.27 39.92
1987 36.49 39.28 45.77 55.67 65.11 73.74 77.35 75.36 66.00 56.57 47.46 40.48
1988 36.66 38.73 47.01 55.38 63.20 70.43 75.19 73.57 64.85 54.57 45.56 42.24
1989 39.51 42.43 46.80 54.25 63.01 70.20 74.55 72.71 66.82 57.50 44.64 39.65
1990 39.46 47.02 51.24 57.25 64.26 71.19 74.67 73.29 67.34 59.87 51.68 44.98
1991 41.88 43.75 49.93 58.77 66.90 73.66 75.40 74.03 67.81 58.51 49.53 42.85
1992 41.11 42.53 47.87 54.02 61.32 68.49 72.50 72.35 65.12 56.56 46.76 41.44
1993 38.10 39.35 44.34 54.07 64.02 72.59 76.37 75.27 66.88 57.03 46.26 37.89
1994 35.23 38.85 49.19 55.99 65.45 70.99 75.50 72.83 65.79 58.27 50.31 44.19
1995 39.52 41.97 48.18 57.06 64.36 71.06 75.84 74.35 68.14 56.38 45.73 37.35
1996 35.71 37.80 45.41 54.34 64.74 70.75 73.51 71.34 65.79 55.03 46.41 38.93
1997 39.50 42.78 48.50 54.15 60.64 68.51 72.92 72.45 65.76 55.86 46.06 39.06

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  11    0.967 0.963 0.949 0.943
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.2 37.2 39.0 36.1 36.5 36.7 39.5 39.5 41.9 41.1 38.1 35.2 39.5 35.7 39.5
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5
S- 10 -2.5 -1.3 -1.3 -2.8 -1.9 -1.5 -1.2 -1.5 -1.6 -1.6 -2.2 -2.3 -2.0 -1.5 -2.3
S-  9  3.0  5.8  6.1  4.6  4.1  4.5  5.0  5.8  5.6  5.4  4.2  4.9  5.4  5.1  4.1
S- 13 -5.1 -4.5 -4.5 -6.4 -5.0 -4.2 -4.8 -5.2 -4.0 -4.9 -4.8 -5.8 -4.1 -5.2 -5.2
S- 11 -0.4  1.7  2.4  0.3 -0.6  0.9  0.8  1.3  1.5  0.8 -0.3 -0.1  1.1  0.5  0.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.91-1.54-1.96-2.25-1.86-1.93 37.72 39.40-1.67 38.25 40.07-1.83  -0.16
      9  4.98 5.06 5.10 5.00 4.79 4.94       32.62 5.10       33.35 4.90  -0.21
     13 -5.22-5.09-5.38-5.50-5.17-4.86       42.99-5.26       43.16-4.91   0.35
     11  0.48 0.60 0.29 0.45 0.57 0.49       37.27 0.45       37.59 0.66   0.21
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.70  2.48                   2.54  2.49 1.02  1.91  1.82 1.05   1.03
      9         2.89                         2.99 0.85        1.85 1.03   1.22
     13         2.54                         2.78 0.91        1.66 1.15   1.26
     11         2.77                         3.08 0.83        1.75 1.09   1.32
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 40.07)(1.05) + 38.25      0.98(F  9 - 33.35)(1.03) + 38.25

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  38    0.972 0.952 0.942 0.934
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.8 40.1 40.0 40.3 39.3 38.7 42.4 47.0 43.8 42.5 39.3 38.8 42.0 37.8 42.8
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
S- 10 -2.0 -0.6 -0.9 -2.2 -1.0 -1.1 -1.1 -1.2 -1.2 -1.1 -2.2 -1.9 -1.0 -1.6 -1.4
S-  9  3.8  6.2  6.6  4.4  3.9  4.8  4.3  5.0  5.7  5.5  4.1  5.7  6.0  5.0  4.9
S- 13 -4.6 -5.0 -4.6 -6.4 -4.6 -4.4 -5.2 -4.3 -4.3 -4.6 -5.4 -6.5 -4.0 -5.6 -6.1
S- 38  1.0  4.2  5.3  1.6  0.5  2.8  2.0  2.8  3.7  2.9  2.2  3.9  3.7  3.1  2.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.56-1.66-1.46-1.72-1.44-1.50 40.28 41.89-1.61 40.98 42.35-1.37   0.24
      9  5.08 5.03 5.19 5.19 4.79 5.27       35.21 5.07       35.92 5.06  -0.01
     13 -5.36-5.54-5.20-5.55-5.23-5.22       45.76-5.48       46.03-5.05   0.43
     38  2.80 2.50 2.95 3.12 2.37 3.20       37.64 2.64       38.13 2.85   0.20
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.62  2.45                   2.28  2.14 1.07  2.33  2.25 1.04   0.98
      9         2.79                         2.46 0.93        2.36 0.99   1.06
     13         2.57                         2.47 0.92        2.21 1.06   1.15
     38         3.03                         2.71 0.84        2.54 0.92   1.09
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.99(F 10 - 42.35)(1.04) + 40.98      0.98(F  9 - 35.92)(0.99) + 40.98

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13   7    0.961 0.921 0.912 0.894
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.5 47.0 50.5 48.3 45.8 47.0 46.8 51.2 49.9 47.9 44.3 49.2 48.2 45.4 48.5
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
S- 10 -1.8 -0.6  0.1 -1.3 -0.6 -0.5 -1.2 -1.1 -1.3 -1.2 -1.8 -1.0 -0.4 -1.0 -0.9
S-  9  3.6  5.6  6.8  4.2  3.9  5.1  4.6  5.1  4.7  4.7  4.4  5.6  6.0  5.6  5.1
S- 13 -4.6 -4.3 -3.3 -6.0 -4.2 -4.1 -5.5 -4.2 -4.9 -4.6 -4.7 -4.8 -4.4 -4.7 -5.2
S-  7  2.7  5.0  5.2  5.2  3.2  4.4  4.6  4.8  4.0  5.2  4.2  6.2  5.6  4.2  4.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.16-1.40-1.00-1.10-1.18-1.09 47.08 48.40-1.31 47.70 48.67-0.97   0.34
      9  4.90 4.94 4.79 5.07 4.63 5.17       42.19 4.89       42.70 5.00   0.11
     13 -4.93-5.01-5.03-4.89-4.92-4.74       52.13-5.05       52.32-4.62   0.43
      7  4.38 4.06 4.66 4.50 4.04 4.77       42.80 4.28       43.14 4.56   0.28
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.08  1.97                   2.05  1.95 1.05  1.92  1.80 1.07   1.02
      9         2.04                         2.10 0.98        1.69 1.14   1.17
     13         1.96                         2.04 1.01        1.92 1.00   1.00
      7         1.89                         1.67 1.23        1.66 1.16   0.94
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 48.67)(1.07) + 47.70      0.96(F  9 - 42.70)(1.14) + 47.70

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  12    0.945 0.912 0.910 0.880
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.5 53.5 59.7 56.6 55.7 55.4 54.3 57.3 58.8 54.0 54.1 56.0 57.1 54.3 54.2
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
S- 10 -2.0 -0.8  0.5 -1.1 -0.3 -0.3 -1.0 -0.7 -1.1 -1.1 -1.6 -1.3 -0.2 -0.6 -0.9
S- 13 -4.6 -4.4 -2.2 -4.6 -3.7 -3.6 -4.3 -3.7 -4.0 -3.9 -3.8 -4.4 -4.4 -4.2 -4.8
S-  9  3.7  5.3  6.0  3.9  3.7  4.4  4.2  5.1  3.7  4.0  4.3  5.4  5.5  5.2  5.4
S- 12 -6.6 -7.1 -4.0 -6.4 -4.9 -5.3 -6.6 -6.0 -6.4 -5.9 -6.1 -6.7 -6.5 -6.5 -7.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.86-1.04-0.56-0.83-0.93-0.96 55.90 56.76-0.87 55.61 56.44-0.83   0.04
     13 -4.25-4.38-4.26-4.14-4.23-4.24       60.19-4.29       59.67-4.06   0.24
      9  4.53 4.74 4.44 4.50 4.30 4.77       51.18 4.71       50.97 4.64  -0.07
     12 -6.16-6.11-5.98-6.16-6.14-6.52       61.92-6.02       61.78-6.16  -0.14
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.72  1.52                   1.70  1.54 1.11  1.86  1.62 1.15   1.04
     13         1.53                         1.59 1.07        1.57 1.18   1.11
      9         1.68                         1.70 1.00        1.83 1.01   1.01
     12         1.46                         1.46 1.16        1.58 1.17   1.01
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.97(F 10 - 56.44)(1.15) + 55.61      0.96(F 13 - 59.67)(1.18) + 55.61

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  10   9  12    0.929 0.928 0.915 0.913
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 61.2 63.8 67.2 65.6 65.1 63.2 63.0 64.3 66.9 61.3 64.0 65.4 64.4 64.7 60.6
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
S- 13 -4.3 -2.8 -1.8 -4.4 -3.0 -3.4 -3.6 -3.6 -3.0 -3.9 -3.5 -2.9 -3.8 -3.3 -3.2
S- 10 -2.0 -0.7  0.4 -1.2 -0.3 -0.6 -1.6 -0.8 -1.0 -1.4 -1.4 -0.9 -0.6 -0.6 -1.1
S-  9  3.2  4.3  6.0  3.8  4.0  3.9  4.5  4.9  3.2  3.4  4.0  4.8  4.6  4.5  4.5
S- 12 -5.9 -4.9 -3.6 -5.4 -3.9 -4.6 -5.9 -5.6 -5.0 -5.6 -4.9 -4.4 -5.8 -5.1 -5.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -3.56-3.63-3.43-3.65-3.68-3.36 65.17 68.64-3.47 64.05 67.41-3.36   0.11
     10 -0.79-0.63-0.41-0.93-1.06-0.99       65.60-0.43       64.96-0.91  -0.48
      9  4.23 4.60 4.13 4.10 4.15 4.14       60.56 4.61       59.81 4.24  -0.37
     12 -5.02-4.70-4.72-5.29-5.27-5.20       69.77-4.60       69.13-5.09  -0.48
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.66  1.50                   1.49  1.36 1.10  1.88  1.66 1.14   1.04
     10         1.42                         1.39 1.07        1.58 1.19   1.11
      9         1.51                         1.56 0.95        1.75 1.07   1.13
     12         1.33                         1.16 1.28        1.56 1.21   0.94
Suggested regression eqns from two most closely related CDs ( 13 and  10): 
          0.96(F 13 - 67.41)(1.14) + 64.05      0.96(F 10 - 64.96)(1.19) + 64.05

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  10  13   9    0.911 0.905 0.903 0.897
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.4 70.1 72.0 72.2 73.7 70.4 70.2 71.2 73.7 68.5 72.6 71.0 71.1 70.8 68.5
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
S- 11  1.3  2.5  3.5  1.4  2.6  2.5  3.0  2.6  2.7  1.7  2.3  3.0  2.3  1.6  2.1
S- 10 -2.0 -1.3  0.2 -1.7 -0.2 -0.9 -1.6 -1.0 -1.1 -1.6 -1.2 -1.3 -1.1 -0.9 -1.2
S- 13 -4.3 -2.9 -1.8 -4.6 -2.1 -2.5 -2.7 -3.4 -2.2 -3.7 -3.5 -2.6 -3.2 -3.9 -3.0
S-  9  3.2  4.0  5.4  3.7  4.1  3.3  3.8  4.8  3.2  3.4  4.3  4.3  3.9  4.2  4.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11  2.20 2.33 2.26 2.03 2.14 2.24 71.81 69.39 2.41 71.02 68.69 2.33  -0.08
     10 -0.86-0.44-0.56-1.06-1.16-1.21       72.15-0.34       72.15-1.12  -0.78
     13 -3.04-2.98-2.73-3.13-3.22-3.16       74.61-2.80       74.11-3.09  -0.29
      9  4.03 4.51 3.98 3.73 3.95 3.91       67.31 4.50       67.04 3.98  -0.51
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.58  1.47                   1.28  1.43 0.89  1.57  1.45 1.08   1.20
     10         1.30                         1.15 1.11        1.40 1.12   1.01
     13         1.48                         1.32 0.97        1.49 1.05   1.08
      9         1.42                         1.45 0.88        1.53 1.02   1.16
Suggested regression eqns from two most closely related CDs ( 11 and  10): 
          0.95(F 11 - 68.69)(1.08) + 71.02      0.95(F 10 - 72.15)(1.12) + 71.02

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  11  13    0.896 0.858 0.848 0.847
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.0 73.9 74.3 75.1 77.3 75.2 74.6 74.7 75.4 72.5 76.4 75.5 75.8 73.5 72.9
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6
S- 10 -1.1 -1.2 -0.1 -1.5 -0.2 -0.9 -1.3 -1.1 -1.4 -1.5 -0.8 -0.7 -0.7 -1.3 -1.1
S-  9  3.6  3.4  5.2  4.1  4.6  3.1  3.8  4.4  3.4  4.0  4.2  4.3  3.5  3.7  3.8
S- 11  2.2  2.2  3.2  1.5  3.7  2.6  3.0  2.5  2.8  2.3  2.5  3.4  2.8  2.0  2.2
S- 13 -3.0 -2.6 -1.9 -4.1 -1.7 -2.2 -2.2 -3.5 -2.2 -3.3 -3.0 -1.5 -2.0 -3.3 -2.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.92-0.46-0.90-1.21-1.00-1.07 74.97 75.44-0.47 74.81 75.81-0.99  -0.52
      9  4.01 4.49 3.87 3.77 4.04 3.84       70.51 4.46       70.87 3.94  -0.52
     11  2.42 2.51 2.46 2.26 2.33 2.57       72.39 2.58       72.21 2.60   0.02
     13 -2.67-2.64-2.49-2.78-2.84-2.55       77.48-2.51       77.42-2.61  -0.10
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.35  1.07                   1.07  0.93 1.15  1.23  1.08 1.14   0.99
      9         1.17                         1.06 1.01        1.25 0.99   0.98
     11         1.21                         1.17 0.92        1.06 1.16   1.27
     13         1.24                         1.16 0.92        1.16 1.07   1.15
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.95(F 10 - 75.81)(1.14) + 74.81      0.93(F  9 - 70.87)(0.99) + 74.81

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  11  13    0.925 0.911 0.879 0.869
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 74.4 70.6 72.9 73.4 75.4 73.6 72.7 73.3 74.0 72.3 75.3 72.8 74.3 71.3 72.4
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
S- 10 -1.0 -2.0 -0.5 -1.4 -0.9 -1.0 -1.3 -1.0 -1.3 -1.5 -1.1 -0.8 -0.8 -1.8 -1.0
S-  9  4.2  3.1  4.4  3.6  4.5  2.8  3.7  4.2  3.8  4.0  4.1  4.5  4.0  3.7  4.6
S- 11  2.5  1.4  3.2  1.2  3.4  2.1  2.5  2.2  2.5  2.2  2.5  3.4  2.5  1.6  2.2
S- 13 -2.8 -3.5 -1.6 -3.8 -2.3 -2.5 -2.2 -3.6 -2.2 -3.1 -3.1 -1.6 -2.2 -3.8 -3.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -1.15-0.72-1.19-1.48-1.15-1.19 73.56 74.33-0.78 73.26 74.43-1.17  -0.39
      9  3.93 4.28 3.76 3.75 3.82 4.11       69.36 4.20       69.30 3.96  -0.24
     11  2.20 2.24 2.18 2.04 2.16 2.44       71.32 2.24       70.88 2.39   0.15
     13 -2.80-2.68-2.80-2.94-2.87-2.69       76.22-2.67       76.00-2.74  -0.08
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.53  1.24                   1.31  1.12 1.17  1.28  1.08 1.18   1.01
      9         1.38                         1.36 0.97        1.21 1.06   1.09
     11         1.34                         1.14 1.14        1.11 1.15   1.00
     13         1.32                         1.12 1.17        1.23 1.03   0.88
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.96(F 10 - 74.43)(1.18) + 73.26      0.95(F  9 - 69.30)(1.06) + 73.26

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  11  10   6    0.948 0.922 0.922 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 67.7 67.6 67.5 66.7 66.0 64.8 66.8 67.3 67.8 65.1 66.9 65.8 68.1 65.8 65.8
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1
S-  9  4.0  3.3  3.8  3.5  4.1  3.5  4.2  4.2  4.3  4.1  3.6  4.5  4.0  3.7  4.6
S- 11  2.0  1.4  1.9  0.9  2.4  1.8  2.7  2.0  2.6  2.0  1.9  2.4  2.6  1.7  1.9
S- 10 -1.3 -1.7 -1.3 -1.8 -1.3 -1.3 -1.3 -1.2 -0.6 -1.0 -1.8 -0.6 -1.0 -1.5 -1.3
S-  6  3.2  4.0  4.0  3.1  4.8  3.6  4.8  4.9  4.0  5.1  5.0  4.3  4.0  3.3  4.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  3.84 4.14 3.75 3.53 3.77 4.12 67.25 63.15 4.10 66.65 62.70 3.96  -0.14
     11  1.78 1.79 1.83 1.48 1.76 2.15       65.38 1.87       64.65 2.01   0.14
     10 -1.39-1.04-1.37-1.96-1.36-1.11       68.22-0.97       67.92-1.26  -0.29
      6  3.97 4.05 3.66 3.98 3.92 4.33       63.27 3.98       62.48 4.18   0.19
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.61  1.50                   1.49  1.33 1.12  1.00  1.10 0.92   0.82
     11         1.43                         1.27 1.18        1.04 0.97   0.82
     10         1.42                         1.31 1.14        1.07 0.94   0.83
      6         1.60                         1.42 1.05        1.29 0.78   0.74
Suggested regression eqns from two most closely related CDs (  9 and  11): 
          0.97(F  9 - 62.70)(0.92) + 66.65      0.96(F 11 - 64.65)(0.97) + 66.65

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13   7    0.952 0.935 0.928 0.918
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 57.4 58.2 61.3 58.4 56.6 54.6 57.5 59.9 58.5 56.6 57.0 58.3 56.4 55.0 55.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
S-  9  3.8  4.2  3.8  3.6  3.9  3.5  4.1  4.7  5.1  3.6  3.3  4.1  4.4  3.9  4.4
S- 10 -2.0 -1.4 -1.7 -2.3 -1.9 -1.9 -2.2 -0.8 -0.7 -2.0 -3.1 -1.2 -1.8 -2.2 -2.1
S- 13 -3.5 -3.4 -3.6 -4.6 -3.3 -4.3 -3.6 -3.0 -1.9 -3.7 -4.5 -2.5 -3.3 -3.9 -3.7
S-  7  1.0  2.1  2.8  2.7  1.8  1.2  1.6  2.6  2.9  2.4  1.9  2.2  1.2  1.1  1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  3.83 4.00 3.82 3.55 3.76 4.10 57.72 53.73 3.99 57.43 53.41 4.02   0.03
     10 -1.88-1.76-1.62-2.31-1.84-1.88       59.27-1.56       59.25-1.82  -0.26
     13 -3.74-3.81-3.51-4.12-3.76-3.37       61.38-3.66       60.96-3.52   0.14
      7  1.63 1.66 1.58 1.41 1.74 1.83       55.94 1.78       55.53 1.91   0.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.73  1.66                   1.02  0.90 1.13  1.71  1.63 1.05   0.92
     10         1.52                         0.78 1.31        1.55 1.11   0.85
     13         1.52                         0.79 1.29        1.60 1.07   0.83
      7         1.45                         1.11 0.92        1.28 1.34   1.45
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.98(F  9 - 53.41)(1.05) + 57.43      0.97(F 10 - 59.25)(1.11) + 57.43

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13  11    0.956 0.947 0.945 0.935
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 46.4 52.5 50.2 48.3 47.5 45.6 44.6 51.7 49.5 46.8 46.3 50.3 45.7 46.4 46.1
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
S-  9  4.2  4.8  4.4  3.8  4.0  4.4  5.3  5.0  5.1  3.9  3.4  4.0  4.7  3.8  3.8
S- 10 -2.3 -0.8 -2.3 -2.8 -1.5 -1.5 -1.9 -1.4 -1.2 -2.3 -3.2 -1.7 -1.8 -2.2 -2.5
S- 13 -4.4 -3.0 -4.6 -5.1 -3.3 -4.0 -4.7 -3.1 -2.9 -3.9 -4.5 -3.2 -3.9 -4.0 -3.9
S- 11  1.1  2.1  1.0 -0.4  1.5  1.6  1.9  2.5  2.4  1.4  0.6  1.4  1.9  0.6  1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.08 4.28 4.10 3.83 4.10 4.09 47.50 43.22 4.29 47.85 43.56 4.29   0.00
     10 -2.08-1.92-1.94-2.40-2.01-2.14       49.29-1.79       49.82-1.97  -0.18
     13 -4.18-4.26-4.18-4.35-4.23-3.75       51.66-4.16       51.75-3.90   0.26
     11  1.17 1.27 1.18 0.99 1.11 1.38       46.20 1.30       46.46 1.39   0.09
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.06  2.15                   1.36  1.54 0.88  2.35  2.26 1.04   1.18
     10         1.96                         1.43 0.95        2.11 1.11   1.17
     13         1.84                         1.31 1.03        2.05 1.14   1.11
     11         2.00                         1.44 0.94        2.26 1.04   1.11
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.98(F  9 - 43.56)(1.04) + 47.85      0.97(F 10 - 49.82)(1.11) + 47.85

Station#1877  ROANOKE/WOODRUM ARPT, va  4728505    lat/lon 79.97   37.32     0M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  13  11    0.948 0.946 0.943 0.943
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.4 41.4 41.8 39.9 40.5 42.2 39.7 45.0 42.8 41.4 37.9 44.2 37.3 38.9 39.1
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
S-  9  5.2  5.6  5.1  4.0  4.0  4.2  5.3  5.5  5.7  3.4  4.2  4.3  4.7  3.8  1.8
S- 10 -1.7 -1.2 -2.5 -2.6 -1.5 -1.2 -2.1 -1.0 -1.7 -2.8 -3.3 -2.2 -1.8 -2.8 -4.5
S- 13 -4.8 -3.7 -4.8 -5.5 -3.9 -4.1 -5.2 -3.0 -3.6 -4.7 -5.3 -3.6 -4.5 -5.7 -5.8
S- 11  1.1  2.5  1.6 -0.9  1.0  1.1  1.5  1.9  2.0  0.1  0.4  1.4  0.8 -0.3 -0.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  4.51 4.72 4.63 4.57 4.48 3.99 40.13 35.43 4.70 40.70 36.24 4.46  -0.24
     10 -2.20-1.97-2.09-2.36-2.00-2.74       42.12-2.00       42.90-2.19  -0.20
     13 -4.82-5.03-4.85-4.87-4.61-4.72       45.11-4.99       45.23-4.53   0.46
     11  0.81 0.89 0.72 0.92 0.89 0.55       39.26 0.87       39.78 0.92   0.05
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.47  2.64                   1.81  2.20 0.82  2.18  2.10 1.04   1.26
     10         2.36                         1.90 0.95        1.95 1.12   1.18
     13         2.24                         1.95 0.93        1.65 1.33   1.43
     11         2.43                         2.14 0.85        1.87 1.17   1.38
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.97(F  9 - 36.24)(1.04) + 40.70      0.97(F 10 - 42.90)(1.12) + 40.70

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 36.67 39.28 44.61 52.85 62.18 69.32 72.86 71.64 66.37 55.59 45.92 39.61
1952 38.92 40.67 45.00 53.11 63.87 71.51 74.82 71.26 63.60 54.99 45.72 40.66
1953 38.61 41.26 46.00 55.10 64.47 72.10 73.71 71.88 66.19 57.34 47.90 39.98
1954 38.13 39.69 47.69 53.59 63.05 68.09 73.18 72.81 67.97 57.24 45.44 36.44
1955 34.66 39.20 47.68 57.12 63.06 69.72 72.76 72.90 66.05 55.90 44.66 36.17
1956 34.91 38.46 45.20 52.70 61.81 69.23 72.41 70.43 64.40 55.32 49.62 41.96
1957 40.26 38.86 46.68 54.78 64.45 70.11 72.46 71.08 63.34 54.99 45.57 38.72
1958 32.70 32.28 39.99 51.26 61.46 68.81 72.16 71.73 64.70 56.99 45.05 37.71
1959 33.91 38.11 45.85 55.17 63.98 70.13 73.35 72.58 66.95 56.34 46.91 39.71
1960 36.49 33.45 40.73 49.65 62.88 67.75 72.24 71.28 65.92 56.93 44.99 35.69
1961 32.31 37.60 44.35 51.08 58.39 66.61 71.62 72.15 66.52 58.14 46.70 38.93
1962 35.10 36.57 42.82 52.85 62.57 68.50 70.15 68.28 64.19 54.55 43.79 34.00
1963 29.44 35.35 44.48 55.29 62.66 68.15 71.35 68.87 63.96 56.06 44.66 36.67
1964 31.68 37.14 43.64 54.11 63.02 69.81 72.23 70.20 62.71 55.06 46.28 40.23
1965 35.64 36.29 42.44 53.53 62.72 69.85 71.31 71.02 63.86 54.64 44.93 36.89
1966 32.35 34.10 40.73 50.34 58.57 67.31 70.94 69.12 61.04 51.96 41.81 37.21
1967 32.70 36.69 42.84 51.20 59.16 64.44 68.84 66.13 59.70 49.70 42.05 33.47
1968 29.96 32.85 41.86 51.67 59.52 66.37 71.52 69.96 63.63 54.30 44.14 35.93
1969 31.83 33.52 41.50 51.15 62.19 69.03 71.89 69.59 62.45 52.55 41.90 33.15
1970 30.40 32.84 41.34 51.48 61.83 68.85 71.69 71.62 65.52 56.43 45.37 36.76
1971 33.22 34.06 40.38 48.15 58.87 66.20 70.30 69.18 65.26 56.47 48.02 40.31
1972 36.70 36.82 42.07 50.97 58.51 65.40 69.08 69.31 62.15 52.64 44.41 38.58
1973 35.78 38.05 44.20 52.47 60.48 67.46 72.04 70.62 64.76 55.86 45.02 40.79
1974 37.39 40.74 44.10 52.71 59.76 65.93 69.34 68.14 61.06 51.87 43.20 38.02
1975 36.01 37.32 41.59 50.10 59.97 68.02 71.47 69.33 64.07 55.20 45.91 37.45
1976 35.80 39.86 47.03 52.37 59.65 65.79 69.33 67.24 59.65 49.32 38.99 29.78
1977 28.38 34.33 45.86 55.34 61.71 68.71 71.94 71.72 63.39 54.45 43.27 34.29
1978 26.88 28.42 37.98 49.58 60.06 66.55 71.64 71.01 63.91 54.62 44.51 37.52
1979 30.32 32.83 40.40 52.38 59.66 65.89 69.65 68.93 62.24 53.80 44.79 38.43
1980 32.89 33.86 40.27 50.57 60.13 67.87 72.35 72.41 64.51 53.75 42.53 34.57
1981 32.16 33.79 42.94 50.83 61.53 67.51 71.00 68.51 60.56 51.81 41.29 33.10
1982 30.75 34.07 41.98 51.10 59.77 67.81 69.44 67.35 60.13 52.12 44.92 38.04
1983 33.75 35.11 41.25 50.32 58.48 66.51 71.13 68.88 61.33 51.02 41.29 33.76
1984 32.55 34.55 41.75 49.17 59.94 67.16 70.79 67.92 63.84 53.55 47.43 37.39
1985 35.35 35.85 44.46 53.10 60.63 65.95 69.11 68.04 63.20 56.68 46.30 37.85
1986 32.83 36.17 43.97 52.41 61.37 68.06 71.10 70.06 63.54 55.46 44.97 36.09
1987 31.40 33.82 40.43 50.60 60.01 68.70 72.30 70.77 61.77 52.35 43.23 36.17
1988 32.48 34.29 42.23 50.71 58.62 66.65 71.39 69.68 60.45 50.23 40.94 37.49
1989 35.29 38.27 42.46 49.55 58.89 66.90 70.94 68.97 62.43 53.38 38.98 34.20
1990 33.53 42.08 46.08 51.98 59.25 66.48 70.26 69.10 62.99 55.09 46.84 39.86
1991 37.15 38.88 45.32 54.34 62.70 69.61 71.36 69.79 62.76 53.05 44.30 37.68
1992 36.23 37.46 43.48 49.88 57.49 64.82 68.66 68.42 60.64 52.37 42.40 37.69
1993 33.81 34.89 39.44 49.21 59.23 67.56 71.26 70.87 62.88 52.92 41.45 33.10
1994 30.39 33.92 43.80 50.99 60.62 66.62 70.95 68.04 60.09 52.72 44.67 39.45
1995 34.33 36.44 41.57 50.69 58.76 67.10 72.32 71.16 65.28 53.88 42.83 33.93
1996 31.64 33.59 41.13 50.17 61.26 67.35 70.55 68.52 62.84 52.58 43.96 36.57
1997 36.33 38.84 44.20 50.22 57.37 65.87 70.19 69.28 62.74 53.29 43.92 36.37

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  13  10  38    0.922 0.920 0.915 0.907
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 33.8 32.5 35.3 32.8 31.4 32.5 35.3 33.5 37.2 36.2 33.8 30.4 34.3 31.6 36.3
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
S-  9 -1.5  1.2  2.5  1.3 -1.0  0.3  0.8 -0.2  0.8  0.5 -0.1  0.1  0.2  1.0  0.9
S- 13 -9.5 -9.2 -8.1 -9.7-10.1 -8.4 -9.0-11.1 -8.7 -9.7 -9.1-10.7 -9.3 -9.2 -8.4
S- 10 -6.9 -6.0 -4.9 -6.1 -6.9 -5.7 -5.4 -7.4 -6.3 -6.5 -6.5 -7.2 -7.1 -5.6 -5.5
S- 38 -4.3  0.1  1.7 -0.7 -3.6 -1.5 -1.3 -2.3 -0.5 -2.0 -1.7 -1.7 -1.8 -0.9 -1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.44 2.76 1.76 1.28 0.62 0.48 35.30 32.62 2.68 33.80 33.35 0.46  -2.22
     13 -8.77-7.40-8.72-9.22-9.34-9.31       42.99-7.69       43.16-9.36  -1.66
     10 -5.45-3.85-5.30-5.96-6.03-6.38       39.40-4.10       40.07-6.27  -2.17
     38 -0.57 0.45-0.30-0.48-1.38-1.37       34.82 0.48       35.24-1.43  -1.91
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.86  2.89                   2.90  2.99 0.97  1.91  1.85 1.03   1.07
     13         2.54                         2.78 1.04        1.66 1.15   1.10
     10         2.48                         2.49 1.16        1.82 1.05   0.90
     38         3.07                         3.13 0.92        2.04 0.94   1.01
Suggested regression eqns from two most closely related CDs (  9 and  13): 
          0.96(F  9 - 33.35)(1.03) + 33.80      0.96(F 13 - 43.16)(1.15) + 33.80

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  50    0.943 0.931 0.926 0.917
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 35.1 34.5 35.8 36.2 33.8 34.3 38.3 42.1 38.9 37.5 34.9 33.9 36.4 33.6 38.8
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2
S- 10 -6.7 -6.1 -5.1 -6.3 -6.4 -5.5 -5.2 -6.1 -6.1 -6.2 -6.7 -6.9 -6.5 -5.8 -5.4
S- 13 -9.3-10.5 -8.8-10.5-10.1 -8.8 -9.4 -9.3 -9.1 -9.7 -9.9-11.4 -9.6 -9.8-10.1
S-  9 -0.9  0.7  2.4  0.3 -1.5  0.3  0.1  0.1  0.9  0.4 -0.3  0.8  0.4  0.8  1.0
S- 50 -6.8 -6.1 -3.4 -7.5 -9.4 -6.0 -6.5 -5.9 -5.5 -6.7 -6.8 -7.0 -7.0 -6.2 -6.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -5.38-4.20-5.08-5.78-5.89-6.21 37.61 41.89-4.28 36.28 42.35-6.07  -1.80
     13 -9.18-8.08-8.82-9.61-9.68-9.94       45.76-8.15       46.03-9.75  -1.60
      9  1.26 2.49 1.57 1.13 0.34 0.55       35.21 2.40       35.92 0.36  -2.05
     50 -5.72-4.77-5.34-5.68-6.56-6.50       42.38-4.77       42.76-6.48  -1.71
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.80  2.45                   2.43  2.14 1.14  2.33  2.25 1.04   0.91
     13         2.57                         2.47 0.98        2.21 1.06   1.07
      9         2.79                         2.46 0.99        2.36 0.99   1.00
     50         3.00                         2.97 0.82        2.32 1.01   1.23
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.97(F 10 - 42.35)(1.04) + 36.28      0.97(F 13 - 46.03)(1.06) + 36.28

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  38    0.906 0.875 0.873 0.853
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.3 41.8 44.5 44.0 40.4 42.2 42.5 46.1 45.3 43.5 39.4 43.8 41.6 41.1 44.2
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
S- 10 -6.1 -5.9 -5.9 -5.6 -5.9 -5.3 -5.5 -6.2 -5.9 -5.6 -6.7 -6.4 -7.0 -5.2 -5.2
S- 13 -8.8 -9.6 -9.3-10.3 -9.5 -8.9 -9.8 -9.3 -9.5 -9.0 -9.6-10.2-11.0 -8.9 -9.5
S-  9 -0.6  0.3  0.8 -0.1 -1.5  0.3  0.3 -0.1  0.1  0.3 -0.5  0.2 -0.6  1.3  0.8
S- 38 -3.2 -2.2 -1.4 -3.0 -5.1 -1.6 -2.4 -2.2 -2.6 -2.7 -2.6 -1.8 -3.5 -0.5 -1.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -5.11-3.93-4.58-5.53-5.77-6.02 44.48 48.40-3.92 42.77 48.67-5.90  -1.98
     13 -8.89-7.54-8.61-9.33-9.52-9.67       52.13-7.65       52.32-9.54  -1.90
      9  0.95 2.41 1.21 0.63 0.04 0.24       42.19 2.29       42.70 0.07  -2.22
     38 -1.68-0.22-1.56-2.03-2.58-2.17       44.93-0.45       45.19-2.42  -1.97
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.28  1.97                   2.19  1.95 1.12  1.82  1.80 1.01   0.90
     13         1.96                         2.04 1.08        1.92 0.95   0.88
      9         2.04                         2.10 1.04        1.69 1.08   1.03
     38         2.21                         2.29 0.96        1.81 1.01   1.05
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.95(F 10 - 48.67)(1.01) + 42.77      0.94(F 13 - 52.32)(0.95) + 42.77

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13   9  38    0.831 0.828 0.800 0.791
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 50.3 49.2 53.1 52.4 50.6 50.7 49.5 52.0 54.3 49.9 49.2 51.0 50.7 50.2 50.2
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
S- 10 -5.1 -5.1 -6.1 -5.3 -5.4 -5.0 -5.7 -5.9 -5.6 -5.2 -6.4 -6.3 -6.6 -4.7 -4.8
S- 13 -7.8 -8.8 -8.7 -8.8 -8.8 -8.2 -9.0 -9.0 -8.5 -8.1 -8.7 -9.4-10.8 -8.4 -8.8
S-  9  0.6  0.9 -0.6 -0.3 -1.4 -0.3 -0.5 -0.2 -0.8 -0.1 -0.6  0.4 -0.9  1.0  1.4
S- 38 -1.8 -1.2 -3.4 -3.0 -4.9 -2.5 -3.4 -2.2 -3.7 -2.9 -2.6 -1.8 -3.7 -1.4 -1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -4.59-3.39-3.80-5.04-5.39-5.66 53.48 56.76-3.29 50.89 56.44-5.55  -2.26
     13 -7.98-6.73-7.50-8.35-8.68-8.94       60.19-6.71       59.67-8.78  -2.07
      9  0.80 2.39 1.19 0.30-0.16 0.07       51.18 2.30       50.97-0.08  -2.37
     38 -1.91-0.39-1.68-2.37-2.84-2.43       54.02-0.55       53.51-2.62  -2.08
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.95  1.52                   1.84  1.54 1.20  1.42  1.62 0.88   0.73
     13         1.53                         1.59 1.16        1.57 0.91   0.78
      9         1.68                         1.70 1.08        1.83 0.78   0.72
     38         1.82                         1.74 1.06        2.05 0.69   0.65
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.91(F 10 - 56.44)(0.88) + 50.89      0.91(F 13 - 59.67)(0.91) + 50.89

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  38  56    0.854 0.838 0.815 0.815
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 58.5 59.9 60.6 61.4 60.0 58.6 58.9 59.3 62.7 57.5 59.2 60.6 58.8 61.3 57.4
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
cd 56 66.4 67.9 69.7 70.8 69.3 68.3 67.7 69.0 70.9 66.6 67.8 69.1 69.3 68.9 65.1
S- 13 -6.9 -6.7 -8.4 -8.6 -8.1 -7.9 -7.7 -8.6 -7.2 -7.7 -8.3 -7.7 -9.4 -6.8 -6.5
S- 11 -1.5 -1.5 -2.5 -2.9 -3.3 -2.8 -1.7 -2.8 -2.4 -2.7 -2.7 -2.1 -3.6 -1.3 -1.2
S- 38 -1.8 -1.9 -3.2 -3.3 -4.3 -3.5 -1.9 -2.4 -4.1 -3.0 -2.5 -2.3 -3.8 -1.2 -1.0
S- 56 -7.9 -7.9 -9.1 -9.4 -9.3 -9.6 -8.8 -9.7 -8.2 -9.1 -8.6 -8.5-10.6 -7.6 -7.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -7.01-5.98-6.50-7.24-7.89-7.65 62.70 68.64-5.93 59.64 67.41-7.77  -1.83
     11 -1.67-0.39-1.58-1.86-2.42-2.27       63.26-0.56       61.96-2.32  -1.76
     38 -1.97-0.69-1.85-2.26-2.68-2.54       63.55-0.84       62.31-2.67  -1.83
     56 -8.15-7.05-7.75-8.52-8.96-8.62       69.76-7.05       68.44-8.80  -1.75
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   1.88  1.50                   1.43  1.36 1.06  1.44  1.66 0.87   0.82
     11         1.51                         1.45 0.99        1.64 0.87   0.88
     38         1.68                         1.64 0.87        1.97 0.73   0.83
     56         1.46                         1.32 1.09        1.53 0.94   0.86
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.92(F 13 - 67.41)(0.87) + 59.64      0.92(F 11 - 61.96)(0.87) + 59.64

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  11   9  50    0.835 0.828 0.808 0.795
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.5 67.2 65.9 68.1 68.7 66.7 66.9 66.5 69.6 64.8 67.6 66.6 67.1 67.3 65.9
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 50 71.2 71.0 72.3 74.4 75.0 72.4 70.6 71.5 74.4 70.3 73.2 71.0 72.0 72.7 69.8
S- 38 -2.6 -1.3 -3.3 -3.7 -3.6 -3.3 -1.2 -2.2 -3.4 -2.4 -2.8 -2.4 -2.7 -2.1 -1.2
S- 11 -1.6 -0.5 -2.6 -2.8 -2.4 -1.3 -0.3 -2.1 -1.4 -2.0 -2.8 -1.4 -1.6 -1.8 -0.6
S-  9  0.4  1.0 -0.7 -0.5 -0.9 -0.5  0.5  0.1 -0.8 -0.3 -0.7  0.0 -0.1  0.8  1.4
S- 50 -4.7 -3.9 -6.3 -6.4 -6.3 -5.7 -3.7 -5.0 -4.8 -5.5 -5.6 -4.4 -4.9 -5.3 -3.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -1.92-1.02-1.54-2.20-2.57-2.42 69.31 70.33-1.02 67.02 69.57-2.55  -1.53
     11 -0.99-0.09-0.57-1.11-1.75-1.64       69.39-0.08       68.69-1.67  -1.59
      9  0.83 2.09 1.15 0.59 0.06 0.04       67.31 2.00       67.04-0.02  -2.02
     50 -4.45-3.63-3.99-4.73-5.13-4.92       72.92-3.61       72.11-5.09  -1.48
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.66  1.56                   1.37  1.61 0.85  1.13  1.65 0.68   0.81
     11         1.47                         1.43 0.96        1.45 0.78   0.81
      9         1.42                         1.45 0.94        1.53 0.74   0.79
     50         1.56                         1.61 0.85        1.53 0.74   0.87
Suggested regression eqns from two most closely related CDs ( 38 and  11): 
          0.91(F 38 - 69.57)(0.68) + 67.02      0.91(F 11 - 68.69)(0.78) + 67.02

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  11  50  39    0.818 0.786 0.762 0.743
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.1 70.8 69.1 71.1 72.3 71.4 70.9 70.3 71.4 68.7 71.3 70.9 72.3 70.6 70.2
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 50 76.7 74.9 75.1 76.9 77.5 77.2 74.6 75.7 76.3 73.1 77.3 75.2 76.5 74.8 74.2
cd 39 77.7 75.6 74.3 76.1 77.0 77.0 74.5 74.7 76.8 72.8 76.9 75.2 77.0 74.5 74.0
S- 38 -4.1 -2.5 -2.8 -3.0 -2.4 -3.4 -1.9 -2.3 -3.1 -1.7 -3.0 -2.5 -3.0 -1.8 -1.6
S- 11 -1.7 -0.9 -2.0 -2.5 -1.4 -1.2 -0.6 -1.9 -1.3 -1.5 -2.6 -1.1 -0.8 -0.9 -0.5
S- 50 -5.6 -4.1 -6.0 -5.8 -5.2 -5.8 -3.7 -5.5 -5.0 -4.5 -6.0 -4.3 -4.2 -4.2 -4.0
S- 39 -6.5 -4.8 -5.2 -5.0 -4.7 -5.6 -3.5 -4.4 -5.5 -4.1 -5.7 -4.2 -4.7 -3.9 -3.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -1.96-1.26-1.43-2.13-2.71-2.38 72.44 73.63-1.19 70.82 73.43-2.61  -1.42
     11 -0.74-0.01-0.20-0.73-1.65-1.25       72.39 0.05       72.21-1.39  -1.44
     50 -4.33-3.85-3.70-4.40-5.17-4.60       76.17-3.73       75.74-4.92  -1.20
     39 -4.07-3.19-3.44-4.45-4.87-4.57       75.64-3.20       75.60-4.78  -1.58
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.33  1.33                   1.08  1.30 0.83  0.96  1.39 0.69   0.83
     11         1.21                         1.17 0.92        1.06 0.90   0.98
     50         1.51                         1.63 0.66        1.25 0.77   1.16
     39         1.46                         1.50 0.72        1.40 0.69   0.95
Suggested regression eqns from two most closely related CDs ( 38 and  11): 
          0.90(F 38 - 73.43)(0.69) + 70.82      0.89(F 11 - 72.21)(0.90) + 70.82

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  38   9  13    0.851 0.840 0.815 0.802
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.9 67.9 68.0 70.1 70.8 69.7 69.0 69.1 69.8 68.4 70.9 68.0 71.2 68.5 69.3
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4
S- 11 -3.0 -1.2 -1.6 -2.2 -1.2 -1.8 -1.2 -2.0 -1.7 -1.7 -1.9 -1.4 -0.7 -1.2 -0.9
S- 38 -5.4 -2.5 -2.9 -2.9 -2.0 -3.7 -2.4 -2.4 -2.6 -1.4 -1.9 -2.3 -2.1 -1.9 -1.4
S-  9 -1.3  0.4 -0.4  0.2 -0.1 -1.0 -0.1  0.0 -0.4  0.1 -0.3 -0.3  0.8  0.9  1.5
S- 13 -8.3 -6.2 -6.5 -7.1 -6.9 -6.4 -6.0 -7.8 -6.4 -7.0 -7.4 -6.4 -5.4 -6.6 -6.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -0.96-0.10-0.48-1.14-1.86-1.35 71.21 71.32-0.11 69.30 70.88-1.58  -1.46
     38 -2.00-1.29-1.54-2.21-2.99-1.97       72.45-1.24       71.83-2.53  -1.30
      9  0.78 1.95 1.11 0.57-0.20 0.31       69.36 1.85       69.30 0.00  -1.85
     13 -5.96-5.01-5.46-6.11-6.89-6.48       76.22-5.02       76.00-6.70  -1.69
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.61  1.34                   1.29  1.14 1.12  1.03  1.11 0.92   0.82
     38         1.54                         1.41 0.91        1.33 0.77   0.84
      9         1.38                         1.36 0.95        1.21 0.85   0.90
     13         1.32                         1.12 1.15        1.23 0.83   0.72
Suggested regression eqns from two most closely related CDs ( 11 and  38): 
          0.92(F 11 - 70.88)(0.92) + 69.30      0.92(F 38 - 71.83)(0.77) + 69.30

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  38   9    0.843 0.833 0.818 0.815
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 61.3 63.8 63.2 63.5 61.8 60.5 62.4 63.0 62.8 60.6 62.9 60.1 65.3 62.8 62.7
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
S- 11 -4.4 -2.4 -2.4 -2.3 -1.8 -2.6 -1.7 -2.3 -2.5 -2.5 -2.1 -3.3 -0.3 -1.2 -1.1
S- 13 -9.4 -7.2 -7.1 -6.9 -7.2 -7.8 -6.9 -8.1 -6.9 -7.3 -7.6 -7.8 -5.3 -5.8 -6.3
S- 38 -6.3 -3.0 -2.9 -2.6 -2.2 -3.6 -2.3 -2.2 -3.1 -2.1 -1.5 -3.7 -1.2 -1.9 -1.2
S-  9 -2.4 -0.5 -0.5  0.3 -0.1 -0.9 -0.2 -0.2 -0.7 -0.4 -0.4 -1.2  1.1  0.8  1.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -1.47-0.24-0.98-1.74-2.62-1.86 65.12 65.38-0.27 62.45 64.65-2.20  -1.93
     13 -6.40-5.15-5.91-6.73-7.61-6.71       70.25-5.13       69.62-7.17  -2.04
     38 -2.03-0.90-1.65-2.26-3.25-2.11       66.08-0.96       65.11-2.66  -1.70
      9  0.60 2.11 0.93 0.31-0.61 0.11       63.15 1.96       62.70-0.25  -2.21
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.02  1.43                   1.49  1.27 1.18  1.34  1.04 1.29   1.10
     13         1.44                         1.41 1.06        1.10 1.22   1.15
     38         1.65                         1.37 1.09        1.31 1.02   0.94
      9         1.50                         1.33 1.12        1.10 1.23   1.09
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.92(F 11 - 64.65)(1.29) + 62.45      0.91(F 13 - 69.62)(1.22) + 62.45

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13   8   5  11    0.795 0.777 0.772 0.756
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 51.0 53.5 56.7 55.5 52.3 50.2 53.4 55.1 53.0 52.4 52.9 52.7 53.9 52.6 53.3
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
cd  5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
S- 13 -9.9 -8.0 -8.3 -7.6 -7.5 -8.6 -7.7 -7.7 -7.4 -7.9 -8.6 -8.1 -5.8 -6.4 -6.2
S-  8 -0.2  2.7  3.4  4.9  2.7  1.6  2.9  2.7  2.4  2.9  3.0  1.6  3.9  3.1  3.8
S-  5  0.3  3.5  4.9  6.1  3.5  2.0  4.1  3.9  3.2  4.0  4.7  1.8  5.1  4.4  5.0
S- 11 -4.8 -3.0 -3.4 -3.1 -2.1 -3.4 -1.9 -2.1 -2.9 -2.8 -3.0 -3.5 -0.2 -1.5 -0.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -6.85-5.27-6.37-7.36-8.17-7.20 56.01 61.38-5.37 53.24 60.96-7.72  -2.35
      8  3.46 5.05 3.42 3.30 2.43 2.97       51.17 4.84       50.48 2.76  -2.07
      5  4.31 5.54 4.05 4.46 3.38 4.02       50.65 5.36       49.48 3.76  -1.60
     11 -1.69 0.02-1.26-2.18-3.03-2.11       56.22-0.21       55.81-2.57  -2.36
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.07  1.52                   1.08  0.79 1.35  1.57  1.60 0.98   0.72
      8         1.60                         1.18 0.91        1.16 1.35   1.48
      5         1.65                         1.17 0.92        1.17 1.34   1.46
     11         1.62                         0.81 1.33        1.72 0.91   0.69
Suggested regression eqns from two most closely related CDs ( 13 and   8): 
          0.89(F 13 - 60.96)(0.98) + 53.24      0.88(F  8 - 50.48)(1.35) + 53.24

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13   5   9   8    0.801 0.794 0.784 0.783
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.3 47.4 46.3 45.0 43.2 40.9 39.0 46.8 44.3 42.4 41.5 44.7 42.8 44.0 43.9
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd  5 37.5 42.1 38.9 39.3 39.3 37.6 34.4 42.2 40.1 38.3 37.8 42.1 37.0 39.0 38.9
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2
S- 13 -9.4 -8.1 -8.5 -8.4 -7.5 -8.7-10.3 -7.9 -8.1 -8.3 -9.3 -8.8 -6.8 -6.5 -6.0
S-  5  3.8  5.3  7.4  5.7  3.9  3.3  4.6  4.7  4.2  4.1  3.7  2.6  5.8  5.0  5.1
S-  9 -0.9 -0.2  0.5  0.5 -0.3 -0.3 -0.4  0.1 -0.1 -0.4 -1.4 -1.7  1.8  1.3  1.7
S-  8  2.4  3.9  5.5  4.6  3.0  2.3  3.2  3.0  2.8  3.0  2.2  2.0  4.5  3.6  3.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -7.30-5.61-7.04-7.70-8.58-7.68 45.88 51.66-5.79 43.57 51.75-8.18  -2.40
      5  5.24 6.58 5.10 5.41 4.51 4.35       39.50 6.37       38.96 4.61  -1.76
      9  0.96 2.93 1.25 0.49-0.26 0.16       43.22 2.66       43.56 0.00  -2.66
      8  4.15 5.91 4.15 4.00 3.24 3.12       40.25 5.62       40.25 3.32  -2.31
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.21  1.84                   1.41  1.31 1.08  2.26  2.05 1.10   1.02
      5         2.14                         1.58 0.90        2.03 1.11   1.24
      9         2.15                         1.54 0.92        2.26 1.00   1.09
      8         2.13                         1.66 0.85        2.02 1.12   1.31
Suggested regression eqns from two most closely related CDs ( 13 and   5): 
          0.90(F 13 - 51.75)(1.10) + 43.57      0.89(F  5 - 38.96)(1.11) + 43.57

Station#1878  STAUNTON/SEWAGE PLAN, va  4806205    lat/lon 79.07   38.15    32M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13   9  11  10    0.902 0.872 0.870 0.870
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 33.8 37.4 37.8 36.1 36.2 37.5 34.2 39.9 37.7 37.7 33.1 39.5 33.9 36.6 36.4
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
S- 13 -9.4 -7.7 -8.7 -9.3 -8.2 -8.9-10.7 -8.1 -8.8 -8.4-10.1 -8.3 -7.9 -8.0 -8.4
S-  9  0.5  1.6  1.2  0.2 -0.3 -0.5 -0.1  0.3  0.5 -0.3 -0.6 -0.4  1.3  1.4 -0.9
S- 11 -3.5 -1.5 -2.3 -4.7 -3.3 -3.7 -3.9 -3.2 -3.2 -3.6 -4.4 -3.3 -2.6 -2.7 -3.3
S- 10 -6.4 -5.2 -6.4 -6.4 -5.9 -5.9 -7.5 -6.1 -6.9 -6.6 -8.1 -6.9 -5.2 -5.2 -7.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -8.01-6.72-7.83-8.27-8.83-8.57 38.22 45.11-6.89 36.51 45.23-8.72  -1.84
      9  1.32 3.02 1.65 1.18 0.26 0.15       35.43 2.79       36.24 0.26  -2.53
     11 -2.38-0.81-2.26-2.48-3.33-3.30       39.26-1.03       39.78-3.28  -2.24
     10 -5.39-3.67-5.07-5.76-6.22-6.58       42.12-3.90       42.90-6.39  -2.49
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.50  2.24                   2.13  1.95 1.09  1.96  1.65 1.19   1.09
      9         2.64                         2.20 0.97        2.10 0.93   0.96
     11         2.43                         2.14 0.99        1.87 1.05   1.06
     10         2.36                         1.90 1.12        1.95 1.01   0.90
Suggested regression eqns from two most closely related CDs ( 13 and   9): 
          0.95(F 13 - 45.23)(1.19) + 36.51      0.93(F  9 - 36.24)(0.93) + 36.51

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 42.24 43.77 48.38 55.67 64.95 72.57 76.89 75.66 70.16 60.06 51.03 44.79
1952 43.65 44.81 49.94 57.54 67.72 74.74 78.44 76.12 67.96 58.91 49.06 45.36
1953 43.56 46.71 51.14 59.97 67.85 74.76 76.50 75.21 69.18 60.05 51.31 44.26
1954 43.35 45.11 52.43 57.82 66.31 71.42 76.04 75.70 70.79 60.82 49.34 40.54
1955 38.47 43.12 51.37 60.08 66.11 72.76 76.67 77.06 70.08 59.63 47.71 39.77
1956 38.79 42.76 49.28 55.71 64.98 72.47 76.29 74.39 68.91 59.94 53.79 45.72
1957 44.19 43.02 51.04 58.58 68.44 73.70 76.28 75.14 67.78 59.97 50.24 43.31
1958 38.14 37.89 45.48 55.55 64.63 72.34 76.01 75.34 68.35 60.33 49.12 41.77
1959 38.37 42.87 50.09 58.68 67.77 73.95 77.21 76.28 71.26 61.61 52.25 44.85
1960 42.16 40.34 47.65 56.24 68.48 73.06 76.94 75.73 70.21 61.06 49.25 40.84
1961 38.47 44.08 50.52 57.05 63.70 72.16 76.62 77.29 70.66 62.27 51.09 43.82
1962 40.25 41.77 48.33 57.61 67.21 73.23 75.40 73.62 69.07 59.75 49.20 40.41
1963 36.21 41.47 49.17 58.45 65.37 71.51 75.69 73.82 68.10 59.81 48.92 42.76
1964 38.92 43.97 49.00 58.02 66.54 73.15 75.52 73.99 67.00 60.16 51.87 46.11
1965 41.99 41.74 46.99 56.73 65.88 73.10 75.31 75.64 69.72 61.00 51.32 43.37
1966 39.60 41.11 47.99 56.23 64.36 72.16 75.97 75.21 68.50 59.98 50.17 44.88
1967 41.25 43.99 49.41 56.78 64.55 70.29 74.86 73.05 67.06 57.28 49.92 42.05
1968 38.58 40.92 48.09 57.65 65.55 72.59 77.47 76.02 70.58 61.65 51.12 42.68
1969 38.38 40.21 47.70 56.64 67.21 73.62 76.70 74.59 68.68 59.50 49.43 40.25
1970 37.58 39.60 47.76 56.93 66.80 73.29 76.56 76.38 71.64 62.92 52.73 43.66
1971 40.99 41.62 48.10 55.13 65.22 72.42 76.24 75.26 71.67 63.00 55.60 48.17
1972 45.17 44.19 48.32 56.07 63.62 70.64 74.71 74.70 68.31 59.78 52.48 45.95
1973 42.55 44.13 50.61 59.06 66.98 73.41 77.53 76.79 71.86 63.54 53.82 49.05
1974 45.84 48.48 52.48 60.06 66.53 72.13 75.54 74.99 68.25 59.64 51.10 46.89
1975 45.09 46.42 49.62 57.27 66.32 73.82 77.69 76.57 71.91 63.92 54.29 46.08
1976 44.13 47.55 54.95 60.03 66.95 72.38 75.69 74.30 67.20 56.96 46.71 37.45
1977 36.48 41.52 52.91 61.36 67.82 73.83 77.48 77.72 70.23 61.55 50.77 43.25
1978 36.25 37.73 45.01 55.72 65.04 71.42 76.53 76.36 70.74 62.43 52.83 45.95
1979 39.01 41.12 47.64 58.54 65.05 71.02 74.80 75.27 69.36 61.34 51.64 44.58
1980 38.28 39.56 46.75 57.66 66.68 73.04 76.07 75.24 67.21 56.94 46.26 38.11
1981 37.25 39.78 49.94 56.73 67.39 73.69 77.26 74.65 67.47 59.07 48.78 40.61
1982 38.16 41.86 49.16 58.00 65.40 72.45 73.57 71.86 65.66 59.03 52.71 46.32
1983 42.12 43.16 48.55 56.94 64.40 72.47 76.75 76.01 70.43 61.73 51.60 42.34
1984 40.54 42.41 49.50 56.39 66.44 73.07 76.44 73.81 70.46 60.71 54.21 42.95
1985 40.29 40.92 50.83 59.88 67.39 72.38 75.00 74.56 70.32 64.81 54.13 45.06
1986 39.41 42.89 49.59 57.86 66.72 74.73 77.56 75.98 69.86 62.55 53.24 44.68
1987 39.74 40.99 46.99 56.82 66.47 74.86 78.24 77.31 68.89 60.53 51.21 44.46
1988 40.69 42.20 49.42 57.68 65.27 72.28 76.46 75.61 67.71 58.74 49.13 45.73
1989 42.27 44.98 49.10 56.88 66.35 73.25 76.21 73.76 67.22 58.40 46.01 42.23
1990 42.71 50.19 54.05 59.39 65.95 73.05 75.87 74.59 69.54 62.63 55.17 47.87
1991 45.44 47.19 53.20 61.86 69.52 76.34 78.33 76.95 70.22 60.99 52.62 46.17
1992 44.16 45.13 50.68 56.54 64.19 71.50 75.55 75.70 68.22 61.08 51.70 46.80
1993 42.24 43.39 47.70 57.31 66.47 75.09 78.52 77.92 70.53 61.91 51.04 42.84
1994 39.61 42.61 50.63 56.25 64.40 70.43 75.25 74.17 68.28 61.98 54.73 49.14
1995 44.26 45.16 50.67 59.13 66.97 73.97 78.05 76.85 71.23 60.81 50.07 40.97
1996 39.03 41.35 48.78 57.11 66.99 72.90 75.91 74.82 69.53 59.82 51.52 44.61
1997 44.79 46.78 51.63 57.09 63.53 71.36 75.69 75.53 69.76 60.86 51.42 43.74

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12   7    0.953 0.921 0.918 0.900
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.1 40.5 40.3 39.4 39.7 40.7 42.3 42.7 45.4 44.2 42.2 39.6 44.3 39.0 44.8
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 12 46.4 45.2 46.5 45.9 45.0 44.3 47.6 47.7 49.7 48.6 46.9 44.9 47.2 44.5 48.3
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
S- 10  1.4  2.0  0.0  0.5  1.4  2.5  1.6  1.8  2.0  1.4  1.9  2.1  2.8  1.8  3.0
S-  9  6.9  9.2  7.4  7.9  7.3  8.5  7.8  9.0  9.1  8.4  8.4  9.3 10.1  8.4  9.4
S- 12 -4.3 -4.7 -6.2 -6.5 -5.3 -3.6 -5.3 -5.0 -4.2 -4.5 -4.7 -5.3 -2.9 -5.5 -3.5
S-  7  5.9  7.8  5.5  7.1  6.6  7.8  7.3  8.1  8.0  7.8  7.9  9.2  8.5  7.6  8.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.59 0.92 1.68 2.08 1.28 2.14 40.58 39.40 1.19 41.82 40.07 1.75   0.56
      9  8.47 7.52 8.74 9.32 7.93 9.01       32.62 7.96       33.35 8.47   0.51
     12 -4.97-5.44-4.90-4.69-5.27-4.36       45.96-5.38       46.58-4.76   0.62
      7  7.48 6.54 7.76 8.24 6.89 8.16       33.45 7.13       34.28 7.54   0.41
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.68  2.48                   2.47  2.49 0.99  2.04  1.82 1.12   1.13
      9         2.89                         2.99 0.82        1.85 1.11   1.34
     12         2.62                         2.72 0.91        1.56 1.31   1.45
      7         2.52                         2.68 0.92        2.00 1.02   1.11
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 40.07)(1.12) + 41.82      0.96(F  9 - 33.35)(1.11) + 41.82

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.964 0.933 0.927 0.921
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.2 42.4 40.9 42.9 41.0 42.2 45.0 50.2 47.2 45.1 43.4 42.6 45.2 41.3 46.8
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
S- 10  1.4  1.8  0.0  0.4  0.7  2.4  1.5  2.0  2.2  1.5  1.8  1.8  2.2  1.9  2.6
S- 12 -3.9 -5.3 -6.5 -6.6 -5.5 -3.6 -5.9 -4.3 -4.0 -4.6 -5.0 -6.4 -3.6 -5.6 -5.2
S-  9  7.1  8.6  7.5  7.0  5.7  8.2  6.8  8.2  9.2  8.1  8.2  9.4  9.1  8.5  8.9
S- 13 -1.2 -2.7 -3.8 -3.8 -2.9 -0.9 -2.7 -1.2 -0.8 -2.0 -1.4 -2.7 -0.8 -2.0 -2.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.43 0.72 1.52 1.82 1.25 2.01 42.90 41.89 1.00 43.96 42.35 1.61   0.60
     12 -5.27-5.83-5.07-5.08-5.34-4.91       48.54-5.65       49.03-5.07   0.57
      9  8.07 7.40 8.16 8.73 7.48 8.78       35.21 7.68       35.92 8.04   0.35
     13 -2.37-3.17-2.23-2.01-2.54-1.71       45.76-2.87       46.03-2.07   0.80
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.63  2.45                   2.05  2.14 0.96  2.52  2.25 1.12   1.17
     12         2.68                         2.35 0.87        2.27 1.11   1.28
      9         2.79                         2.46 0.83        2.36 1.07   1.28
     13         2.57                         2.47 0.83        2.21 1.14   1.38
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.98(F 10 - 42.35)(1.12) + 43.96      0.97(F 12 - 49.03)(1.11) + 43.96

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12   7    0.951 0.908 0.894 0.892
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.5 49.5 50.8 49.6 47.0 49.4 49.1 54.0 53.2 50.7 47.7 50.6 50.7 48.8 51.6
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
S- 10  1.2  1.9  0.4  0.0  0.7  1.9  1.1  1.8  2.0  1.6  1.5  0.4  2.1  2.4  2.3
S-  9  6.7  8.0  7.2  5.5  5.1  7.5  6.9  7.9  8.0  7.5  7.8  7.1  8.5  8.9  8.3
S- 12 -3.8 -4.5 -5.1 -6.9 -4.8 -3.7 -5.6 -4.1 -4.2 -4.0 -4.1 -6.1 -4.3 -3.9 -4.9
S-  7  5.7  7.5  5.6  6.5  4.4  6.8  6.9  7.6  7.3  8.0  7.6  7.6  8.1  7.5  7.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.33 0.81 1.32 1.72 1.19 1.74 49.39 48.40 0.99 50.09 48.67 1.42   0.42
      9  7.39 7.15 7.11 7.88 6.99 8.01       42.19 7.20       42.70 7.39   0.19
     12 -4.78-5.01-5.00-4.43-4.87-4.52       54.41-5.03       54.77-4.68   0.34
      7  6.87 6.27 6.98 7.31 6.40 7.61       42.80 6.59       43.14 6.95   0.36
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.06  1.97                   1.78  1.95 0.91  1.84  1.80 1.02   1.12
      9         2.04                         2.10 0.85        1.69 1.09   1.29
     12         1.96                         1.90 0.94        2.02 0.91   0.97
      7         1.89                         1.67 1.07        1.66 1.11   1.04
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 48.67)(1.02) + 50.09      0.95(F  9 - 42.70)(1.09) + 50.09

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12   9    0.889 0.855 0.841 0.832
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.9 56.4 59.9 57.9 56.8 57.7 56.9 59.4 61.9 56.5 57.3 56.3 59.1 57.1 57.1
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
S- 10  1.5  2.1  0.7  0.2  0.9  2.0  1.7  1.5  2.0  1.4  1.7 -1.0  1.8  2.2  2.1
S-  7  5.6  7.2  5.1  4.2  4.1  5.8  6.0  6.5  6.3  6.6  6.4  4.3  6.7  7.1  6.3
S- 12 -3.2 -4.2 -3.8 -5.1 -3.7 -3.0 -4.0 -3.9 -3.3 -3.4 -2.8 -6.4 -4.4 -3.7 -4.6
S-  9  7.2  8.1  6.2  5.2  4.8  6.7  6.9  7.2  6.8  6.5  7.5  5.7  7.5  7.9  8.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.21 0.67 1.14 1.59 1.29 1.45 57.58 56.76 0.82 57.81 56.44 1.37   0.56
      7  5.81 5.44 5.90 6.04 5.56 6.26       52.01 5.57       51.92 5.88   0.31
     12 -4.09-4.40-4.28-3.74-3.91-4.11       61.92-4.34       61.78-3.97   0.37
      9  6.61 6.44 6.13 6.92 6.52 7.18       51.18 6.40       50.97 6.84   0.44
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.53  1.52                   1.40  1.54 0.91  1.52  1.62 0.94   1.04
      7         1.59                         1.43 0.98        1.74 0.88   0.90
     12         1.46                         1.46 0.95        1.58 0.96   1.01
      9         1.68                         1.70 0.82        1.83 0.83   1.02
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.94(F 10 - 56.44)(0.94) + 57.81      0.92(F  7 - 51.92)(0.88) + 57.81

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12   9    0.860 0.848 0.824 0.802
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.4 66.4 67.4 66.7 66.5 65.3 66.3 65.9 69.5 64.2 66.5 64.4 67.0 67.0 63.5
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
S- 10  1.2  1.9  0.7  0.0  1.1  1.5  1.7  0.9  1.6  1.4  1.1 -1.9  2.0  1.7  1.8
S-  7  4.2  5.5  4.6  3.6  4.1  4.3  5.2  4.7  4.8  5.2  4.7  1.4  6.0  5.7  4.4
S- 12 -2.6 -2.3 -3.3 -4.3 -2.6 -2.6 -2.6 -3.9 -2.4 -2.8 -2.4 -5.5 -3.2 -2.8 -2.6
S-  9  6.4  6.9  6.2  5.0  5.4  6.0  7.9  6.6  5.8  6.2  6.5  3.8  7.2  6.7  7.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.12 0.63 1.17 1.61 1.06 1.10 66.40 65.60 0.80 66.07 64.96 1.11   0.32
      7  4.68 4.49 4.68 5.02 4.58 4.60       61.88 4.51       61.50 4.57   0.05
     12 -3.12-3.44-3.14-2.75-3.14-3.11       69.77-3.37       69.13-3.06   0.31
      9  6.14 5.85 5.71 6.65 6.27 6.23       60.56 5.83       59.81 6.26   0.43
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.37  1.42                   1.43  1.39 1.03  1.47  1.58 0.93   0.90
      7         1.33                         1.27 1.12        1.46 1.01   0.89
     12         1.33                         1.16 1.24        1.56 0.94   0.76
      9         1.51                         1.56 0.92        1.75 0.84   0.91
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.93(F 10 - 64.96)(0.93) + 66.07      0.92(F  7 - 61.50)(1.01) + 66.07

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9   7    0.875 0.842 0.827 0.790
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.5 73.1 72.4 74.7 74.9 72.3 73.3 73.1 76.3 71.5 75.1 70.4 74.0 72.9 71.4
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
S- 10  1.2  1.7  0.6  0.8  0.9  1.0  1.4  0.9  1.6  1.4  1.3 -1.9  1.8  1.3  1.7
S- 12 -2.3 -1.7 -3.3 -2.9 -1.6 -1.8 -2.0 -3.2 -1.2 -2.6 -2.1 -4.7 -1.8 -3.1 -1.9
S-  9  6.3  6.9  5.8  6.2  5.2  5.1  6.9  6.7  5.9  6.4  6.8  3.8  6.8  6.4  6.8
S-  7  3.5  4.5  3.3  3.6  3.7  2.2  4.2  4.1  4.1  4.7  4.6  0.6  4.5  4.8  3.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.07 0.64 1.23 1.43 1.00 1.01 72.99 72.15 0.85 73.18 72.15 1.03   0.18
     12 -2.31-2.64-2.04-2.02-2.44-2.48       75.47-2.47       75.59-2.41   0.06
      9  5.95 5.59 5.76 6.22 6.11 6.13       67.31 5.68       67.04 6.14   0.45
      7  3.74 3.62 3.65 3.90 3.70 3.87       69.39 3.60       69.42 3.76   0.16
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.25  1.30                   0.97  1.15 0.84  1.53  1.40 1.10   1.31
     12         1.23                         1.04 0.93        1.25 1.23   1.32
      9         1.42                         1.45 0.66        1.53 1.00   1.51
      7         1.20                         1.07 0.90        1.38 1.11   1.23
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.94(F 10 - 72.15)(1.10) + 73.18      0.92(F 12 - 75.59)(1.23) + 73.18

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7   6    0.825 0.803 0.736 0.735
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.8 76.4 75.0 77.6 78.2 76.5 76.2 75.9 78.3 75.6 78.5 75.3 78.1 75.9 75.7
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
S- 10  0.6  1.3  0.6  0.9  0.7  0.4  0.3  0.1  1.6  1.5  1.3 -1.0  1.5  1.1  1.7
S-  9  5.3  6.0  5.9  6.5  5.5  4.4  5.4  5.6  6.4  7.0  6.4  4.0  5.7  6.1  6.5
S-  7  2.5  3.4  3.0  4.1  3.6  1.5  3.0  2.7  3.7  4.9  4.2  1.2  3.6  3.6  3.6
S-  6  3.9  5.7  6.1  6.7  5.8  3.5  5.5  6.0  5.4  7.6  6.6  4.2  4.7  5.4  6.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.01 0.76 1.29 1.32 0.61 1.11 76.39 75.44 0.95 76.66 75.81 0.85  -0.10
      9  5.94 5.71 6.07 6.30 5.64 6.02       70.51 5.88       70.87 5.78  -0.09
      7  3.32 3.29 3.22 3.55 3.06 3.54       73.07 3.32       73.42 3.24  -0.08
      6  5.60 5.24 5.64 5.93 5.49 5.73       70.99 5.40       71.09 5.56   0.17
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.07  1.07                   0.79  0.93 0.84  1.15  1.08 1.07   1.27
      9         1.17                         1.06 0.74        1.25 0.92   1.25
      7         1.05                         0.92 0.86        1.18 0.97   1.14
      6         1.34                         1.30 0.60        1.57 0.73   1.22
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.91(F 10 - 75.81)(1.07) + 76.66      0.90(F  9 - 70.87)(0.92) + 76.66

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12   7    0.809 0.787 0.754 0.735
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.0 73.8 74.6 76.0 77.3 75.6 73.8 74.6 76.9 75.7 77.9 74.2 76.8 74.8 75.5
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
S- 10  0.6  1.2  1.1  1.1  1.0  1.0 -0.2  0.3  1.6  1.8  1.6  0.5  1.7  1.7  2.0
S-  9  5.8  6.3  6.1  6.2  6.4  4.9  4.7  5.5  6.8  7.4  6.8  5.8  6.5  7.2  7.7
S- 12 -2.3 -2.0 -2.1 -2.7 -1.6 -2.1 -3.3 -3.6 -1.1 -2.1 -1.4 -2.2 -0.8 -1.9 -1.4
S-  7  2.7  3.4  2.9  4.3  4.5  2.7  2.4  3.3  4.3  5.6  4.9  3.0  3.7  4.1  4.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.14 0.85 1.42 1.28 0.72 1.57 75.40 74.33 1.06 75.57 74.43 1.14   0.08
      9  6.22 5.85 6.38 6.50 5.69 6.87       69.36 6.04       69.30 6.27   0.23
     12 -1.86-2.04-1.54-1.56-2.52-1.56       77.28-1.88       77.61-2.03  -0.15
      7  3.63 3.44 3.53 3.90 3.15 4.32       71.85 3.55       71.81 3.76   0.21
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.24  1.24                   1.06  1.12 0.95  1.25  1.08 1.15   1.22
      9         1.38                         1.36 0.78        1.21 1.03   1.33
     12         1.09                         0.92 1.14        0.97 1.29   1.13
      7         1.19                         1.31 0.80        1.04 1.20   1.49
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.90(F 10 - 74.43)(1.15) + 75.57      0.89(F  9 - 69.30)(1.03) + 75.57

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  12   8    0.809 0.802 0.792 0.772
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.4 70.5 70.3 69.9 68.9 67.7 67.2 69.5 70.2 68.2 70.5 68.3 71.2 69.5 69.8
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2
cd  8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3
S- 10  1.4  1.2  1.5  1.3  1.6  1.6 -0.9  1.0  1.8  2.1  1.9  1.9  2.1  2.2  2.7
S-  9  6.7  6.2  6.6  6.6  7.0  6.3  4.6  6.4  6.8  7.2  7.2  7.0  7.1  7.4  8.6
S- 12 -2.4 -2.1 -2.8 -2.9 -2.2 -2.8 -4.7 -3.8 -1.7 -2.3 -2.0 -1.9 -1.4 -1.5 -1.4
S-  8  9.3  9.3  9.4  9.8 10.5  8.9  7.0  8.9  9.1 10.5 10.6  9.8  8.8  8.9 10.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.33 0.84 1.56 1.39 1.00 2.10 69.28 68.22 1.06 69.48 67.92 1.56   0.50
      9  6.56 6.03 6.68 6.88 6.12 7.33       63.15 6.13       62.70 6.78   0.65
     12 -2.37-2.77-2.08-2.06-2.99-1.75       71.85-2.56       71.86-2.38   0.18
      8  9.17 8.58 9.02 9.74 8.95 9.75       60.57 8.71       60.06 9.42   0.71
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.49  1.42                   1.22  1.31 0.93  1.13  1.07 1.06   1.14
      9         1.50                         1.33 0.91        1.10 1.03   1.13
     12         1.30                         1.13 1.08        1.01 1.12   1.04
      8         1.57                         1.59 0.77        1.25 0.90   1.17
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.90(F 10 - 67.92)(1.06) + 69.48      0.90(F  9 - 62.70)(1.03) + 69.48

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9  13    0.839 0.837 0.813 0.795
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 61.7 60.7 64.8 62.5 60.5 58.7 58.4 62.6 61.0 61.1 61.9 62.0 60.8 59.8 60.9
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
S- 10  2.3  1.1  1.7  1.9  2.1  2.3 -1.3  1.9  1.8  2.5  1.8  2.5  2.6  2.5  2.9
S- 12 -2.0 -2.8 -3.7 -3.8 -2.4 -3.4 -6.2 -3.0 -2.1 -2.5 -3.0 -2.0 -2.1 -2.3 -1.9
S-  9  8.1  6.7  7.3  7.7  7.8  7.7  5.0  7.5  7.6  8.1  8.2  7.8  8.8  8.7  9.4
S- 13  0.8 -0.9 -0.2 -0.5  0.7 -0.1 -2.7 -0.2  0.6  0.8  0.4  1.2  1.1  0.8  1.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.51 0.86 1.62 1.57 1.40 2.38 60.36 59.27 1.09 61.17 59.25 1.92   0.83
     12 -2.96-3.50-2.57-2.84-3.37-2.30       63.61-3.25       64.06-2.89   0.36
      9  7.22 6.62 7.06 7.42 7.00 8.36       53.73 6.63       53.41 7.76   1.13
     13 -0.34-1.20-0.27-0.25-0.52 0.89       61.38-1.02       60.96 0.21   1.23
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.68  1.52                   0.82  0.78 1.05  1.53  1.55 0.99   0.94
     12         1.57                         0.77 1.07        1.65 0.93   0.87
      9         1.66                         0.90 0.91        1.63 0.94   1.03
     13         1.52                         0.79 1.04        1.60 0.95   0.92
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.92(F 10 - 59.25)(0.99) + 61.17      0.91(F 12 - 64.06)(0.93) + 61.17

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9   7    0.924 0.914 0.905 0.886
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 51.6 54.2 54.1 53.2 51.2 49.1 46.0 55.2 52.6 51.7 51.0 54.7 50.1 51.5 51.4
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
S- 10  2.9  0.9  1.6  2.2  2.2  2.0 -0.5  2.1  1.9  2.7  1.6  2.7  2.5  2.9  2.9
S- 12 -2.8 -3.6 -4.6 -4.2 -2.9 -3.7 -6.6 -3.3 -2.7 -3.0 -3.6 -2.4 -3.1 -2.7 -2.4
S-  9  9.4  6.5  8.3  8.8  7.7  7.9  6.6  8.4  8.2  8.9  8.2  8.4  9.0  8.9  9.2
S-  7  6.9  5.2  7.3  7.4  6.2  5.6  4.5  6.2  6.2  7.3  6.4  7.0  6.6  6.8  6.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.61 0.86 1.62 1.74 1.63 2.44 50.37 49.29 1.08 51.85 49.82 2.03   0.96
     12 -3.59-4.22-3.45-3.31-3.93-2.83       54.38-4.02       55.30-3.44   0.57
      9  7.77 7.06 7.66 7.97 7.74 8.67       43.22 7.15       43.56 8.29   1.14
      7  5.85 4.97 5.85 6.10 5.92 6.65       45.16 5.20       45.46 6.39   1.19
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.23  1.96                   1.56  1.43 1.09  2.29  2.11 1.09   1.00
     12         1.96                         1.49 1.04        2.02 1.14   1.09
      9         2.15                         1.54 1.01        2.26 1.02   1.00
      7         1.92                         1.48 1.05        1.99 1.15   1.10
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.96(F 10 - 49.82)(1.09) + 51.85      0.96(F 12 - 55.30)(1.14) + 51.85

Station#1879  SUFFOLK/LAKE KILBY  , va  4819201    lat/lon 76.60   36.73     2M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12   9   7    0.948 0.931 0.926 0.908
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.3 43.0 45.1 44.7 44.5 45.7 42.2 47.9 46.2 46.8 42.8 49.1 41.0 44.6 43.7
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
S- 10  2.2  0.4  0.8  2.2  2.4  2.3  0.5  1.9  1.6  2.5  1.7  2.8  1.8  2.8  0.2
S- 12 -4.2 -5.0 -5.1 -5.1 -3.4 -4.1 -6.0 -3.8 -3.1 -3.8 -4.6 -2.5 -4.8 -3.8 -5.2
S-  9  9.1  7.2  8.4  8.8  8.0  7.7  7.9  8.3  9.0  8.8  9.2  9.3  8.4  9.5  6.4
S-  7  7.3  5.2  6.8  7.8  7.4  6.9  6.4  7.5  7.1  7.8  7.8  7.3  7.1  7.6  3.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.53 0.79 1.61 1.82 1.61 1.92 43.18 42.12 1.06 44.64 42.90 1.74   0.69
     12 -4.43-5.15-4.17-4.18-4.53-3.96       48.06-4.88       48.94-4.30   0.59
      9  8.24 7.48 8.33 8.75 8.10 8.64       35.43 7.75       36.24 8.39   0.65
      7  6.72 5.92 6.91 7.14 6.74 6.92       36.91 6.27       37.72 6.92   0.65
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.63  2.36                   2.01  1.90 1.06  2.17  1.95 1.11   1.05
     12         2.40                         2.02 1.00        1.66 1.30   1.31
      9         2.64                         2.20 0.92        2.10 1.03   1.13
      7         2.43                         1.96 1.03        2.15 1.01   0.98
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.97(F 10 - 42.90)(1.11) + 44.64      0.96(F 12 - 48.94)(1.30) + 44.64

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 41.17 43.93 49.32 56.78 65.62 72.30 75.86 74.38 68.96 58.87 49.47 43.09
1952 42.07 44.05 49.97 57.87 68.25 74.68 78.19 75.40 67.25 58.42 48.44 44.36
1953 42.50 45.69 50.63 59.53 68.14 75.50 77.13 75.66 69.04 60.02 50.87 43.58
1954 42.30 44.34 52.20 57.85 65.96 71.09 75.43 75.30 70.07 59.87 48.29 39.56
1955 37.75 42.01 50.34 59.01 65.39 72.22 76.20 76.48 69.08 58.46 46.58 38.54
1956 37.41 41.42 48.34 55.67 64.75 71.99 75.47 73.45 67.91 58.95 52.49 43.81
1957 41.94 41.46 50.61 58.58 68.25 73.44 75.68 74.43 66.59 58.60 48.97 42.12
1958 36.77 36.59 44.36 54.64 64.19 71.68 75.12 74.23 66.97 58.74 46.95 40.10
1959 36.89 42.08 49.58 58.59 67.28 73.18 76.57 75.69 70.40 60.26 50.63 42.91
1960 40.22 37.83 45.19 53.09 65.95 71.02 75.66 74.52 68.65 59.18 46.83 37.64
1961 35.18 40.95 48.34 55.08 62.50 70.69 75.37 75.73 69.44 60.84 48.73 41.13
1962 37.27 39.55 46.49 56.34 66.15 72.02 73.95 71.77 66.73 57.09 46.60 38.19
1963 34.11 39.48 47.23 57.08 64.24 70.43 74.25 72.15 66.32 58.20 46.83 39.89
1964 35.48 40.94 46.64 56.33 65.19 72.21 74.56 72.59 64.95 57.47 48.98 43.21
1965 39.27 39.44 45.49 55.55 65.03 72.02 74.14 73.90 67.20 57.98 48.08 40.05
1966 36.60 39.00 46.40 55.44 63.84 71.86 75.57 73.68 66.31 56.92 46.90 42.19
1967 38.42 41.72 47.28 54.95 63.22 68.91 73.69 71.37 64.89 54.60 46.80 39.04
1968 35.41 38.36 46.24 56.51 64.77 71.84 76.64 74.65 68.60 59.58 49.14 40.66
1969 36.32 38.29 46.50 55.73 66.70 73.13 76.07 73.71 66.93 57.61 46.93 37.65
1970 34.86 37.18 45.86 55.77 66.30 73.37 76.20 75.80 70.47 61.39 50.15 40.95
1971 37.67 39.57 46.33 54.40 64.50 71.98 75.63 74.26 70.17 61.32 53.46 45.02
1972 41.55 41.38 46.91 55.88 63.72 70.62 74.05 73.67 66.53 57.10 49.05 42.83
1973 39.99 42.08 48.82 57.40 65.65 72.39 76.72 75.27 69.40 60.41 49.79 44.85
1974 41.63 45.46 50.41 58.84 65.46 71.07 74.36 73.68 66.47 57.20 48.20 43.30
1975 40.99 42.39 46.46 55.28 64.76 72.35 75.72 73.75 68.89 60.23 50.71 41.77
1976 40.51 44.66 52.69 58.15 65.63 71.42 74.60 72.51 65.07 54.09 43.43 33.60
1977 32.87 38.55 50.68 59.72 66.48 72.91 76.79 76.83 69.04 59.76 48.48 40.35
1978 33.58 35.42 43.53 54.85 64.74 71.28 75.85 74.89 68.34 59.17 49.33 42.47
1979 35.09 38.16 45.30 57.95 64.58 70.78 73.92 73.85 67.62 59.46 49.98 42.93
1980 37.07 38.55 46.03 57.14 66.41 73.33 77.41 77.74 70.11 58.45 46.25 37.37
1981 36.40 38.53 48.83 55.86 67.08 72.56 76.03 72.81 65.38 56.53 45.94 37.50
1982 34.84 38.60 46.75 56.21 64.86 72.58 74.33 72.95 66.48 59.07 51.40 44.14
1983 39.90 41.36 47.22 56.02 63.93 71.93 76.48 75.63 69.35 59.59 48.43 39.31
1984 37.77 40.07 47.87 54.70 65.23 71.91 75.48 72.83 69.37 59.56 52.95 42.07
1985 40.15 40.98 50.49 59.24 66.76 72.23 74.93 74.27 69.22 63.04 52.05 43.42
1986 37.67 41.53 48.59 57.71 66.62 74.04 76.54 75.15 68.95 60.68 50.60 41.91
1987 37.88 40.31 46.94 56.86 66.05 74.35 77.81 76.62 67.69 58.84 49.15 41.95
1988 38.34 40.33 48.73 57.09 65.08 72.50 77.05 75.86 67.04 57.36 47.51 43.66
1989 40.40 43.50 48.29 56.11 65.54 72.59 76.32 74.50 68.69 60.04 46.17 41.20
1990 40.63 48.56 52.77 58.45 65.57 72.63 76.08 74.42 69.09 60.95 53.29 45.68
1991 43.32 44.98 51.71 60.75 68.77 75.57 77.50 76.21 69.02 59.53 50.62 44.30
1992 42.23 43.06 48.72 55.24 63.48 70.47 74.11 73.97 66.50 59.04 49.19 44.15
1993 39.69 40.93 46.22 56.10 66.13 74.17 77.81 76.90 69.16 59.93 48.71 40.20
1994 36.66 40.31 50.55 58.16 67.75 73.26 77.13 74.10 66.77 59.52 51.93 45.88
1995 41.14 42.69 49.14 58.15 66.30 73.20 77.33 75.70 69.56 58.87 47.77 39.03
1996 36.77 39.61 47.44 56.08 66.31 72.00 75.01 73.43 67.81 57.79 49.08 41.94
1997 42.06 44.34 49.85 55.88 62.84 70.78 74.70 74.21 67.58 58.04 48.03 40.62

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9   8    0.973 0.966 0.960 0.936
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.9 37.8 40.2 37.7 37.9 38.3 40.4 40.6 43.3 42.2 39.7 36.7 41.1 36.8 42.1
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3
S- 10 -0.8 -0.8 -0.1 -1.3 -0.5  0.2 -0.3 -0.3 -0.1 -0.5 -0.7 -0.9 -0.3 -0.5  0.3
S-  7  3.7  5.0  5.3  5.3  4.7  5.5  5.4  6.1  5.9  5.8  5.3  6.3  5.3  5.4  5.4
S-  9  4.7  6.4  7.3  6.2  5.5  6.2  5.9  6.9  7.0  6.5  5.8  6.4  7.0  6.1  6.6
S-  8  8.2 11.2 11.7 11.2  9.7 10.8 10.8 11.8 11.7 11.1 10.8 12.5 11.4 10.8 10.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.80-0.47-1.15-1.21-0.64-0.38 38.69 39.40-0.71 39.64 40.07-0.43   0.27
      7  5.10 5.15 4.93 4.96 4.97 5.64       33.45 5.24       34.28 5.36   0.13
      9  6.09 6.13 5.91 6.04 6.01 6.48       32.62 6.07       33.35 6.29   0.22
      8 10.8210.7110.5211.0710.6411.28       27.8310.86       28.6810.96   0.10
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.70  2.48                   2.75  2.49 1.10  1.99  1.82 1.09   0.99
      7         2.52                         2.68 1.03        2.00 1.00   0.97
      9         2.89                         2.99 0.92        1.85 1.08   1.17
      8         2.85                         2.97 0.93        2.18 0.92   0.99
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.99(F 10 - 40.07)(1.09) + 39.64      0.98(F  7 - 34.28)(1.00) + 39.64

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.982 0.959 0.948 0.937
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.4 40.1 41.0 41.5 40.3 40.3 43.5 48.6 45.0 43.1 40.9 40.3 42.7 39.6 44.3
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
S- 10 -0.4 -0.6  0.0 -1.0  0.1  0.5  0.0  0.3  0.0 -0.6 -0.7 -0.5 -0.2  0.2  0.1
S-  9  5.3  6.2  7.5  5.7  5.0  6.4  5.3  6.6  7.0  6.0  5.7  7.1  6.7  6.8  6.5
S-  7  4.3  5.8  5.4  5.3  4.7  5.7  6.1  6.5  6.0  6.0  6.0  8.1  5.2  5.9  5.9
S- 13 -3.0 -5.0 -3.7 -5.2 -3.6 -2.8 -4.2 -2.8 -3.0 -4.1 -3.8 -5.0 -3.3 -3.8 -4.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.54-0.38-0.88-0.79-0.31-0.23 41.32 41.89-0.57 42.17 42.35-0.18   0.39
      9  6.10 6.30 5.76 6.12 5.92 6.54       35.21 6.11       35.92 6.25   0.14
      7  5.48 5.48 5.25 5.37 5.33 6.17       35.81 5.51       36.37 5.80   0.29
     13 -4.34-4.27-4.63-4.62-4.10-3.95       45.76-4.45       46.03-3.86   0.59
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.64  2.45                   2.43  2.14 1.13  2.33  2.25 1.04   0.92
      9         2.79                         2.46 0.99        2.36 0.99   1.00
      7         2.26                         1.94 1.25        2.33 1.00   0.80
     13         2.57                         2.47 0.98        2.21 1.06   1.07
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.99(F 10 - 42.35)(1.04) + 42.17      0.98(F  9 - 35.92)(0.99) + 42.17

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.969 0.937 0.931 0.895
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 47.2 47.9 50.5 48.6 46.9 48.7 48.3 52.8 51.7 48.7 46.2 50.5 49.1 47.4 49.8
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 10 -0.1  0.2  0.1 -1.0  0.6  1.2  0.3  0.5  0.5 -0.4  0.1  0.3  0.6  1.1  0.5
S-  7  4.4  5.9  5.3  5.5  4.3  6.1  6.0  6.3  5.8  6.1  6.1  7.5  6.5  6.2  5.4
S-  9  5.3  6.4  6.8  4.5  5.1  6.8  6.1  6.6  6.5  5.5  6.3  7.0  7.0  7.6  6.5
S- 13 -2.9 -3.4 -3.2 -5.7 -3.0 -2.4 -4.0 -2.6 -3.1 -3.8 -2.8 -3.4 -3.4 -2.6 -3.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.04 0.19-0.53-0.21 0.12 0.36 48.32 48.40-0.08 48.97 48.67 0.30   0.38
      7  5.50 5.64 5.13 5.39 5.34 6.23       42.80 5.51       43.14 5.83   0.31
      9  6.02 6.52 5.26 5.96 5.93 6.63       42.19 6.13       42.70 6.27   0.14
     13 -3.81-3.43-4.56-4.01-3.62-3.28       52.13-3.81       52.32-3.35   0.46
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.19  1.97                   2.25  1.95 1.15  1.76  1.80 0.98   0.85
      7         1.89                         1.67 1.35        1.66 1.06   0.79
      9         2.04                         2.10 1.07        1.69 1.04   0.98
     13         1.96                         2.04 1.10        1.92 0.92   0.83
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.98(F 10 - 48.67)(0.98) + 48.97      0.97(F  7 - 43.14)(1.06) + 48.97

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.947 0.910 0.863 0.848
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.0 54.7 59.2 57.7 56.9 57.1 56.1 58.5 60.8 55.2 56.1 58.2 58.2 56.1 55.9
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
S- 10  0.6  0.4  0.1  0.0  0.9  1.4  0.9  0.5  0.8  0.1  0.5  0.9  0.9  1.2  0.9
S-  7  4.7  5.5  4.5  4.0  4.1  5.2  5.2  5.5  5.2  5.3  5.2  6.2  5.7  6.1  5.1
S-  9  6.3  6.4  5.6  5.0  4.9  6.1  6.1  6.3  5.6  5.2  6.3  7.6  6.5  6.9  7.1
S- 13 -2.1 -3.3 -2.6 -3.5 -2.5 -1.9 -2.5 -2.5 -2.0 -2.7 -1.8 -2.3 -3.3 -2.4 -3.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.32 0.24-0.19 0.46 0.46 0.74 56.80 56.76 0.03 57.10 56.44 0.66   0.63
      7  4.92 5.02 4.57 4.91 4.72 5.55       52.01 4.79       51.92 5.18   0.39
      9  5.71 6.02 4.80 5.79 5.69 6.48       51.18 5.62       50.97 6.13   0.52
     13 -3.07-3.10-3.89-2.85-2.83-2.53       60.19-3.39       59.67-2.57   0.83
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.61  1.52                   1.75  1.54 1.14  1.58  1.62 0.97   0.86
      7         1.59                         1.43 1.22        1.74 0.91   0.74
      9         1.68                         1.70 1.02        1.83 0.86   0.84
     13         1.53                         1.59 1.10        1.57 1.00   0.92
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 56.44)(0.97) + 57.10      0.95(F  7 - 51.92)(0.91) + 57.10

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12   9    0.946 0.919 0.868 0.852
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 63.9 65.2 66.8 66.6 66.1 65.1 65.5 65.6 68.8 63.5 66.1 67.8 66.3 66.3 62.8
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
S- 10  0.8  0.7  0.0 -0.1  0.7  1.3  0.9  0.5  0.9  0.7  0.8  1.4  1.3  1.0  1.1
S-  7  3.8  4.3  4.0  3.5  3.7  4.1  4.4  4.3  4.1  4.5  4.4  4.7  5.3  5.0  3.7
S- 12 -3.1 -3.5 -4.0 -4.4 -3.0 -2.8 -3.4 -4.3 -3.2 -3.5 -2.8 -2.1 -3.9 -3.5 -3.3
S-  9  6.0  5.7  5.6  4.9  5.0  5.8  7.1  6.2  5.0  5.5  6.1  7.1  6.5  6.0  6.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.55 0.28 0.25 0.79 0.56 1.03 65.79 65.60 0.19 65.76 64.96 0.80   0.61
      7  4.12 4.15 3.75 4.19 4.08 4.53       61.88 3.91       61.50 4.25   0.34
     12 -3.68-3.79-4.06-3.57-3.65-3.18       69.77-3.98       69.13-3.38   0.60
      9  5.57 5.51 4.79 5.82 5.76 6.16       60.56 5.23       59.81 5.95   0.72
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.42  1.42                   1.59  1.39 1.14  1.49  1.58 0.94   0.83
      7         1.33                         1.27 1.25        1.46 1.02   0.82
     12         1.33                         1.16 1.37        1.56 0.96   0.70
      9         1.51                         1.56 1.02        1.75 0.85   0.84
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 64.96)(0.94) + 65.76      0.96(F  7 - 61.50)(1.02) + 65.76

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.955 0.895 0.889 0.855
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.9 71.9 72.2 74.0 74.3 72.5 72.6 72.6 75.6 70.5 74.2 73.3 73.2 72.0 70.8
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
S- 10  0.6  0.5  0.4  0.1  0.4  1.2  0.8  0.5  0.8  0.4  0.3  1.0  1.0  0.4  1.1
S-  9  5.8  5.8  5.6  5.5  4.7  5.3  6.2  6.2  5.2  5.4  5.9  6.6  6.0  5.5  6.3
S-  7  3.0  3.4  3.2  3.0  3.2  2.4  3.5  3.7  3.4  3.6  3.7  3.4  3.7  3.9  3.3
S- 12 -2.8 -2.9 -3.4 -3.6 -2.1 -1.6 -2.6 -3.7 -1.9 -3.7 -3.0 -1.8 -2.6 -4.0 -2.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.51 0.17 0.36 0.83 0.51 0.71 72.30 72.15 0.15 72.78 72.15 0.63   0.48
      9  5.39 5.13 4.90 5.62 5.62 5.83       67.31 4.99       67.04 5.73   0.75
      7  3.18 3.16 2.79 3.31 3.21 3.57       69.39 2.90       69.42 3.35   0.45
     12 -2.87-3.11-2.90-2.62-2.93-2.79       75.47-3.17       75.59-2.82   0.35
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.31  1.30                   1.36  1.15 1.18  1.32  1.40 0.94   0.80
      9         1.42                         1.45 0.94        1.53 0.86   0.92
      7         1.20                         1.07 1.27        1.38 0.95   0.75
     12         1.23                         1.04 1.31        1.25 1.06   0.81
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 72.15)(0.94) + 72.78      0.95(F  9 - 67.04)(0.86) + 72.78

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.958 0.922 0.879 0.827
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.5 75.5 74.9 76.5 77.8 77.1 76.3 76.1 77.5 74.1 77.8 77.1 77.3 75.0 74.7
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
S- 10  0.4  0.3  0.5 -0.1  0.2  1.0  0.4  0.3  0.7  0.1  0.6  0.9  0.8  0.2  0.7
S-  9  5.1  5.0  5.8  5.5  5.1  5.0  5.5  5.8  5.5  5.6  5.7  5.9  5.0  5.2  5.5
S-  7  2.2  2.4  2.9  3.1  3.2  2.1  3.1  2.9  2.8  3.4  3.5  3.1  2.9  2.7  2.6
S- 38  1.3  2.2  3.0  2.5  3.1  2.2  3.5  3.5  3.1  3.8  3.5  3.7  2.1  2.6  2.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.40 0.16 0.33 0.59 0.38 0.58 75.57 75.44 0.13 76.29 75.81 0.48   0.35
      9  5.33 5.11 5.10 5.57 5.41 5.49       70.51 5.06       70.87 5.41   0.35
      7  2.70 2.70 2.26 2.83 2.83 3.01       73.07 2.50       73.42 2.87   0.37
     38  2.51 1.88 2.46 2.66 2.65 3.09       73.63 1.94       73.43 2.86   0.91
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.18  1.07                   1.11  0.93 1.19  1.16  1.08 1.07   0.90
      9         1.17                         1.06 1.04        1.25 0.92   0.88
      7         1.05                         0.92 1.21        1.18 0.98   0.81
     38         1.33                         1.30 0.85        1.39 0.83   0.97
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 75.81)(1.07) + 76.29      0.96(F  9 - 70.87)(0.92) + 76.29

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.968 0.925 0.910 0.888
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.6 72.8 74.3 75.2 76.6 75.9 74.5 74.4 76.2 74.0 76.9 74.1 75.7 73.4 74.2
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
S- 10  0.2  0.2  0.8  0.3  0.4  1.2  0.5  0.1  0.8  0.1  0.6  0.5  0.6  0.3  0.7
S-  9  5.5  5.4  5.8  5.3  5.8  5.1  5.4  5.3  6.0  5.7  5.7  5.7  5.3  5.8  6.4
S-  7  2.3  2.4  2.6  3.4  3.8  2.9  3.1  3.2  3.6  3.9  3.9  2.9  2.6  2.8  3.2
S- 12 -2.7 -2.9 -2.4 -3.5 -2.3 -1.9 -2.6 -3.8 -1.8 -3.8 -2.4 -2.2 -2.0 -3.3 -2.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.23 0.14 0.00 0.20 0.41 0.51 74.38 74.33 0.04 74.92 74.43 0.49   0.45
      9  5.31 5.14 4.95 5.43 5.38 5.81       69.36 5.02       69.30 5.62   0.60
      7  2.72 2.73 2.10 2.82 2.84 3.26       71.85 2.53       71.81 3.11   0.58
     12 -2.77-2.74-2.97-2.63-2.83-2.62       77.28-2.90       77.61-2.69   0.22
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.40  1.24                   1.36  1.12 1.22  1.16  1.08 1.07   0.88
      9         1.38                         1.36 1.00        1.21 0.96   0.96
      7         1.19                         1.31 1.03        1.04 1.11   1.08
     12         1.09                         0.92 1.47        0.97 1.19   0.81
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 74.43)(1.07) + 74.92      0.96(F  9 - 69.30)(0.96) + 74.92

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  12    0.958 0.919 0.915 0.910
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.3 69.4 69.2 68.9 67.7 67.0 68.7 69.1 69.0 66.5 69.2 66.8 69.6 67.8 67.6
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2
S- 10  0.4  0.1  0.4  0.4  0.4  0.9  0.6  0.5  0.6  0.3  0.5  0.4  0.4  0.5  0.5
S-  7  3.0  3.1  3.3  3.9  4.0  3.5  3.3  3.5  3.3  4.0  4.2  3.5  2.7  3.2  3.3
S-  9  5.6  5.1  5.5  5.7  5.8  5.7  6.1  5.9  5.6  5.5  5.9  5.5  5.4  5.7  6.4
S- 12 -3.5 -3.2 -3.9 -3.8 -3.4 -3.4 -3.2 -4.2 -2.9 -4.1 -3.3 -3.4 -3.1 -3.2 -3.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.02-0.14-0.36-0.12 0.37 0.48 67.97 68.22-0.25 68.39 67.92 0.47   0.72
      7  2.91 2.80 2.23 3.00 3.25 3.45       65.38 2.59       64.95 3.44   0.85
      9  5.25 5.05 4.76 5.37 5.49 5.71       63.15 4.82       62.70 5.69   0.87
     12 -3.68-3.75-4.00-3.57-3.62-3.37       71.85-3.87       71.86-3.48   0.40
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.51  1.42                   1.50  1.31 1.14  1.01  1.07 0.95   0.83
      7         1.41                         1.37 1.09        1.22 0.83   0.76
      9         1.50                         1.33 1.13        1.10 0.92   0.82
     12         1.30                         1.13 1.32        1.01 1.00   0.76
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.98(F 10 - 67.92)(0.95) + 68.39      0.96(F  7 - 64.95)(0.83) + 68.39

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.947 0.905 0.899 0.899
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 59.6 59.6 63.0 60.7 58.8 57.4 60.0 61.0 59.5 59.0 59.9 59.5 58.9 57.8 58.0
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8
S- 10  0.1  0.0  0.0  0.0  0.4  0.9  0.4  0.2  0.3  0.5 -0.2  0.1  0.7  0.5  0.1
S-  9  6.0  5.6  5.5  5.8  6.1  6.3  6.6  5.8  6.1  6.1  6.2  5.3  6.9  6.7  6.6
S-  7  3.1  3.5  4.5  4.9  4.1  4.0  4.2  3.7  3.9  4.9  4.8  3.4  3.7  3.8  3.4
S- 12 -4.2 -3.9 -5.4 -5.7 -4.0 -4.8 -4.5 -4.7 -3.6 -4.5 -5.0 -4.5 -4.1 -4.4 -4.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.25-0.25-0.65-0.62 0.14 0.28 58.86 59.27-0.41 59.52 59.25 0.27   0.67
      9  5.46 5.51 4.79 5.23 5.75 6.26       53.73 5.13       53.41 6.11   0.97
      7  3.26 3.18 2.55 3.09 3.73 3.98       55.94 2.92       55.53 3.99   1.07
     12 -4.72-4.61-4.83-5.03-4.63-4.40       63.61-4.75       64.06-4.54   0.21
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.63  1.52                   1.00  0.78 1.28  1.35  1.55 0.87   0.68
      9         1.66                         0.90 1.11        1.63 0.82   0.74
      7         1.45                         1.11 0.90        1.28 1.06   1.17
     12         1.57                         0.77 1.30        1.65 0.81   0.63
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 59.25)(0.87) + 59.52      0.95(F  9 - 53.41)(0.82) + 59.52

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.967 0.946 0.942 0.931
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.4 53.0 52.0 50.6 49.2 47.5 46.2 53.3 50.6 49.2 48.7 51.9 47.8 49.1 48.0
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8
S- 10 -0.3 -0.3 -0.5 -0.5  0.2  0.4 -0.4  0.2 -0.1  0.1 -0.7 -0.1  0.2  0.4 -0.5
S-  9  6.2  5.3  6.2  6.1  5.6  6.3  6.8  6.6  6.2  6.4  5.8  5.6  6.7  6.5  5.8
S-  7  3.7  4.0  5.3  4.7  4.1  4.0  4.7  4.3  4.2  4.8  4.0  4.2  4.3  4.4  2.9
S- 12 -6.0 -4.9 -6.7 -6.9 -5.0 -5.4 -6.4 -5.2 -4.7 -5.5 -5.9 -5.2 -5.4 -5.1 -5.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.60-0.50-1.04-0.95-0.24-0.10 48.58 49.29-0.71 49.70 49.82-0.12   0.59
      9  5.56 5.70 5.00 5.29 5.87 6.13       43.22 5.37       43.56 6.14   0.77
      7  3.65 3.61 3.19 3.42 4.05 4.11       45.16 3.42       45.46 4.24   0.82
     12 -5.79-5.58-6.11-5.99-5.80-5.36       54.38-5.80       55.30-5.60   0.20
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.11  1.96                   1.69  1.43 1.19  2.05  2.11 0.97   0.82
      9         2.15                         1.54 1.10        2.26 0.91   0.83
      7         1.92                         1.48 1.14        1.99 1.03   0.90
     12         1.96                         1.49 1.13        2.02 1.02   0.90
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 49.82)(0.97) + 49.70      0.97(F  9 - 43.56)(0.91) + 49.70

Station#1880  WALKERTON/2 NW      , va  4882901    lat/lon 77.02   37.73     3M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  12    0.970 0.959 0.942 0.931
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.3 42.1 43.4 41.9 42.0 43.7 41.2 45.7 44.3 44.2 40.2 45.9 39.0 41.9 40.6
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
S- 10 -0.8 -0.5 -0.8 -0.6 -0.1  0.2 -0.5 -0.3 -0.3 -0.1 -1.0 -0.5 -0.1  0.2 -2.9
S-  9  6.1  6.3  6.7  6.0  5.5  5.6  6.9  6.2  7.1  6.2  6.5  6.0  6.4  6.8  3.3
S-  7  4.3  4.3  5.1  5.0  4.9  4.8  5.4  5.4  5.2  5.1  5.2  4.0  5.2  4.9  0.6
S- 12 -7.3 -5.9 -6.7 -7.9 -5.9 -6.2 -7.0 -6.0 -4.9 -6.5 -7.3 -5.8 -6.7 -6.4 -8.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -0.88-0.76-1.09-1.28-0.53-0.68 41.21 42.12-0.91 42.35 42.90-0.54   0.37
      9  5.83 5.93 5.63 5.65 5.95 6.05       35.43 5.78       36.24 6.11   0.33
      7  4.31 4.37 4.21 4.04 4.60 4.33       36.91 4.30       37.72 4.63   0.33
     12 -6.83-6.70-6.87-7.28-6.67-6.55       48.06-6.85       48.94-6.58   0.27
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.54  2.36                   2.15  1.90 1.14  2.05  1.95 1.05   0.93
      9         2.64                         2.20 0.98        2.10 0.98   1.00
      7         2.43                         1.96 1.10        2.15 0.96   0.87
     12         2.40                         2.02 1.07        1.66 1.23   1.16
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 42.90)(1.05) + 42.35      0.98(F  9 - 36.24)(0.98) + 42.35

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 39.05 41.20 46.81 55.44 64.72 72.31 76.29 75.29 69.70 58.85 49.05 41.84
1952 40.86 41.69 47.14 54.80 65.99 73.83 77.86 75.26 66.74 57.43 47.43 42.53
1953 40.64 43.62 48.84 57.89 66.93 74.72 76.84 75.26 68.83 59.46 49.86 41.56
1954 39.97 41.21 49.27 55.52 65.49 71.87 76.11 75.75 70.12 60.16 48.11 39.14
1955 36.70 40.16 47.91 57.47 65.19 73.15 76.92 76.82 69.23 58.31 46.20 37.76
1956 36.28 39.55 45.96 53.42 63.46 70.76 74.59 72.43 66.87 57.28 49.81 41.00
1957 39.41 39.99 48.92 57.37 67.63 74.26 77.11 75.58 67.58 58.90 48.76 41.67
1958 35.79 35.78 43.46 54.52 64.52 71.87 75.30 74.58 67.84 59.33 47.23 39.07
1959 35.47 39.80 47.79 57.85 68.05 74.71 78.25 77.34 71.86 60.73 50.38 42.26
1960 39.50 37.31 44.99 53.40 66.31 71.57 76.56 75.63 69.46 59.45 46.00 36.27
1961 32.84 38.56 46.13 53.94 62.46 71.31 76.47 77.01 70.59 61.48 48.66 40.24
1962 35.17 37.86 45.21 56.35 66.24 72.54 75.19 72.96 67.91 57.38 46.11 36.36
1963 31.86 37.16 46.12 57.05 65.43 72.04 75.56 73.21 67.66 59.15 47.31 38.93
1964 34.68 40.25 46.23 56.56 66.06 74.36 76.85 74.86 66.77 58.58 48.60 41.30
1965 36.67 37.19 43.44 54.12 64.54 73.31 76.04 76.04 69.05 59.81 49.46 41.01
1966 36.69 38.77 45.70 55.10 64.57 73.93 78.54 76.13 68.07 58.33 47.97 42.58
1967 37.60 40.16 45.74 54.12 64.03 70.57 76.02 73.82 67.32 56.96 47.61 38.67
1968 35.18 38.52 47.45 57.07 65.22 72.54 77.77 77.10 70.82 61.08 49.26 40.13
1969 35.85 38.06 46.35 56.66 68.04 74.96 77.63 75.36 68.39 58.70 47.40 37.69
1970 34.34 36.28 44.86 55.10 66.24 74.20 77.81 77.75 72.11 62.25 50.49 39.97
1971 36.59 37.80 45.86 53.94 64.84 72.60 76.98 76.04 71.44 61.97 52.82 43.98
1972 40.23 40.23 45.47 54.71 62.93 70.71 74.54 74.81 67.58 57.87 48.79 42.58
1973 39.47 42.06 48.30 56.61 65.25 72.99 78.75 77.83 72.47 63.05 52.26 45.38
1974 41.39 43.88 49.08 57.50 64.96 71.84 76.30 75.90 68.59 59.41 50.37 44.86
1975 41.54 42.28 46.56 56.16 66.55 75.06 78.56 76.01 70.58 62.02 52.66 42.79
1976 40.27 43.96 52.77 58.73 67.46 73.60 77.56 75.20 67.45 56.23 44.63 34.52
1977 33.02 38.92 50.77 60.71 67.93 74.84 77.99 77.88 70.53 61.53 49.58 40.62
1978 34.04 36.21 44.78 55.94 66.72 73.74 78.94 77.92 71.39 61.69 51.56 43.37
1979 35.77 38.68 45.76 58.43 65.39 72.89 76.53 76.26 69.51 61.48 52.19 45.00
1980 39.05 39.91 47.58 58.58 68.15 75.55 80.03 80.78 73.22 61.83 49.40 40.33
1981 38.62 41.33 51.22 58.57 68.94 74.99 78.65 76.14 68.76 60.20 49.33 39.15
1982 34.83 37.31 46.14 56.22 65.29 74.01 76.14 75.44 68.67 60.83 52.47 45.04
1983 40.83 41.95 47.10 55.63 64.38 73.68 79.11 78.33 71.34 61.12 48.89 39.38
1984 37.17 39.16 46.79 53.83 65.52 72.69 77.06 74.24 70.42 59.85 52.30 40.72
1985 38.04 38.76 49.24 59.07 67.32 73.13 76.05 75.91 69.90 62.43 50.57 41.88
1986 35.68 39.47 46.55 57.22 66.97 75.22 77.44 75.58 68.86 59.52 49.14 40.23
1987 37.14 39.89 46.72 56.58 66.12 75.35 79.22 77.81 68.30 58.68 48.53 40.65
1988 36.55 38.52 46.40 55.81 64.86 74.02 79.02 77.24 67.97 57.69 47.63 42.73
1989 38.80 41.35 46.60 55.18 65.40 73.01 77.37 75.59 69.57 59.90 45.37 39.70
1990 38.67 46.36 50.86 57.09 65.32 72.82 76.94 75.19 69.60 61.45 53.08 44.93
1991 41.96 43.44 50.11 59.98 69.34 77.05 79.43 77.54 70.44 60.05 50.51 43.03
1992 40.54 41.46 47.24 54.22 63.12 71.14 75.06 74.24 66.30 57.93 48.10 42.63
1993 37.98 38.88 43.95 54.79 65.82 75.25 79.35 77.93 69.48 59.23 48.30 38.44
1994 34.32 36.82 48.10 56.73 68.07 74.69 78.88 75.88 68.21 60.84 52.18 45.60
1995 39.51 41.23 46.89 57.08 65.57 73.94 79.16 77.95 71.49 58.81 47.05 37.13
1996 35.18 37.66 45.70 54.51 65.93 72.83 77.09 74.92 68.79 58.03 48.87 41.32
1997 41.42 43.40 49.20 55.19 63.32 72.11 77.07 76.19 69.19 58.72 48.93 40.74

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   8  10   9    0.952 0.912 0.905 0.897
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.8 37.2 38.0 35.7 37.1 36.5 38.8 38.7 42.0 40.5 38.0 34.3 39.5 35.2 41.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd  8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
S-  7  4.6  4.4  3.2  3.3  4.0  3.7  3.8  4.1  4.6  4.1  3.6  3.9  3.7  3.8  4.7
S-  8  9.2 10.6  9.6  9.2  9.0  9.0  9.2  9.9 10.3  9.4  9.1 10.1  9.8  9.2 10.1
S- 10  0.1 -1.4 -2.2 -3.3 -1.2 -1.6 -1.9 -2.2 -1.5 -2.2 -2.4 -3.2 -2.0 -2.0 -0.4
S-  9  5.6  5.8  5.2  4.2  4.7  4.4  4.3  5.0  5.6  4.8  4.1  4.0  5.3  4.6  6.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.13 3.62 3.72 5.00 4.20 4.07 36.99 33.45 3.54 38.25 34.28 3.98   0.44
      8  9.85 9.18 9.3211.11 9.87 9.72       27.83 9.17       28.68 9.57   0.40
     10 -1.76-2.00-2.35-1.16-1.41-1.95       39.40-2.40       40.07-1.82   0.58
      9  5.12 4.60 4.70 6.08 5.25 4.92       32.62 4.37       33.35 4.90   0.53
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.58  2.52                   2.71  2.68 1.01  2.23  2.00 1.12   1.10
      8         2.85                         2.97 0.91        2.18 1.03   1.12
     10         2.48                         2.49 1.09        1.82 1.22   1.13
      9         2.89                         2.99 0.91        1.85 1.21   1.33
Suggested regression eqns from two most closely related CDs (  7 and   8): 
          0.98(F  7 - 34.28)(1.12) + 38.25      0.95(F  8 - 28.68)(1.03) + 38.25

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   8  10   9    0.935 0.895 0.879 0.864
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.0 39.2 38.8 39.5 39.9 38.5 41.3 46.4 43.4 41.5 38.9 36.8 41.2 37.7 43.4
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd  8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
S-  7  4.9  4.9  3.2  3.2  4.3  3.9  4.0  4.3  4.5  4.4  3.9  4.6  3.8  4.0  5.0
S-  8  9.6 11.1  9.7  8.8  9.0  9.5  9.1  9.7 10.1  9.8  9.1 10.9  9.7  9.5 10.8
S- 10  0.2 -1.5 -2.2 -3.0 -0.4 -1.3 -2.2 -1.9 -1.5 -2.2 -2.7 -4.0 -1.7 -1.8 -0.8
S-  9  5.9  5.3  5.3  3.6  4.5  4.6  3.2  4.4  5.4  4.4  3.7  3.7  5.2  4.8  5.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.28 3.57 4.04 5.14 4.36 4.30 39.42 35.81 3.61 40.56 36.37 4.18   0.57
      8  9.99 9.13 9.6611.19 9.97 9.98       30.17 9.25       30.80 9.75   0.50
     10 -1.73-2.29-2.09-1.02-1.28-2.09       41.89-2.47       42.35-1.79   0.68
      9  4.91 4.39 4.55 5.89 4.95 4.68       35.21 4.21       35.92 4.64   0.42
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.32  2.26                   2.03  1.94 1.05  2.45  2.33 1.05   1.00
      8         2.54                         2.13 0.95        2.53 0.97   1.02
     10         2.45                         2.14 0.95        2.25 1.09   1.15
      9         2.79                         2.46 0.83        2.36 1.04   1.25
Suggested regression eqns from two most closely related CDs (  7 and   8): 
          0.97(F  7 - 36.37)(1.05) + 40.56      0.95(F  8 - 30.80)(0.97) + 40.56

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   8   4    0.909 0.833 0.822 0.792
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 47.1 46.8 49.2 46.5 46.7 46.4 46.6 50.9 50.1 47.2 44.0 48.1 46.9 45.7 49.2
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0
cd  4 38.1 36.7 38.7 37.7 37.4 36.8 35.8 39.1 40.7 35.6 34.1 35.4 36.5 35.5 37.7
S-  7  4.3  4.8  4.0  3.4  4.1  3.8  4.4  4.4  4.2  4.6  3.9  5.1  4.3  4.5  4.7
S- 10 -0.2 -0.8 -1.2 -3.0  0.4 -1.1 -1.4 -1.4 -1.1 -1.9 -2.2 -2.1 -1.7 -0.7 -0.2
S-  8  8.8 10.3  9.9  7.8  7.9  9.3  9.9  9.4  9.1  9.3  8.7 11.3 10.2  9.9 10.2
S-  4  9.0 10.1 10.5  8.9  9.4  9.6 10.8 11.7  9.4 11.6  9.9 12.7 10.3 10.2 11.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.43 3.70 4.21 5.36 4.45 4.45 46.55 42.80 3.75 47.43 43.14 4.29   0.54
     10 -1.11-1.76-1.46-0.23-0.77-1.41       48.40-1.85       48.67-1.24   0.60
      8  9.70 8.87 9.2510.99 9.65 9.79       37.55 9.00       37.97 9.46   0.46
      4 10.48 9.5810.3011.5910.2310.81       36.79 9.76       37.0610.37   0.61
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.00  1.89                   1.76  1.67 1.05  1.73  1.66 1.04   0.99
     10         1.97                         1.95 0.90        1.80 0.96   1.07
      8         2.04                         1.85 0.95        1.74 1.00   1.05
      4         1.94                         1.78 0.99        1.64 1.05   1.07
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.95(F  7 - 43.14)(1.04) + 47.43      0.91(F 10 - 48.67)(0.96) + 47.43

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   4   8  10    0.899 0.821 0.806 0.797
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 55.6 53.8 59.1 57.2 56.6 55.8 55.2 57.1 60.0 54.2 54.8 56.7 57.1 54.5 55.2
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
cd  4 46.5 43.8 48.5 48.8 47.8 46.7 45.9 46.6 50.5 44.5 46.1 46.2 46.3 44.9 44.6
cd  8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
S-  7  4.3  4.6  4.3  3.5  3.8  4.0  4.3  4.2  4.5  4.3  3.9  4.8  4.6  4.5  4.4
S-  4  9.1 10.0 10.5  8.5  8.8  9.1  9.3 10.5  9.5  9.7  8.7 10.5 10.7  9.6 10.6
S-  8  9.5 10.5  9.5  8.0  7.3  8.5  9.4  9.0  8.5  8.2  8.2 10.7 10.0  9.3  9.8
S- 10  0.2 -0.5 -0.1 -0.5  0.6  0.1  0.0 -0.8  0.1 -0.9 -0.8 -0.5 -0.2 -0.4  0.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.37 3.63 4.30 5.08 4.42 4.43 55.71 52.01 3.71 56.19 51.92 4.27   0.56
      4  9.88 9.1810.0110.58 9.72 9.91       46.40 9.31       46.52 9.68   0.36
      8  9.14 8.40 8.8210.02 9.25 9.26       47.25 8.47       47.09 9.10   0.64
     10 -0.23-1.15-0.46 0.63 0.16-0.38       56.76-1.05       56.44-0.24   0.81
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.74  1.59                   1.56  1.43 1.09  1.68  1.74 0.97   0.89
      4         1.71                         1.48 1.05        1.73 0.97   0.92
      8         1.74                         1.57 1.00        2.03 0.83   0.83
     10         1.52                         1.54 1.02        1.62 1.04   1.02
Suggested regression eqns from two most closely related CDs (  7 and   4): 
          0.95(F  7 - 51.92)(0.97) + 56.19      0.91(F  4 - 46.52)(0.97) + 56.19

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   4  12    0.865 0.806 0.790 0.745
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.4 65.5 67.3 67.0 66.1 64.9 65.4 65.3 69.3 63.1 65.8 68.1 65.6 65.9 63.3
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
S-  7  4.2  4.6  4.5  3.9  3.8  3.9  4.2  4.1  4.7  4.1  4.1  5.0  4.6  4.6  4.2
S- 10  1.2  0.9  0.6  0.2  0.7  1.1  0.8  0.3  1.4  0.4  0.4  1.7  0.6  0.6  1.6
S-  4  8.2  9.3 10.7  9.2  8.6  8.5  9.0  9.5  9.3  8.1  8.6 10.5  9.9  9.6  8.4
S- 12 -2.6 -3.2 -3.4 -4.0 -2.9 -3.0 -3.5 -4.5 -2.6 -3.8 -3.1 -1.8 -4.6 -3.9 -2.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.34 3.60 4.24 5.02 4.42 4.47 65.53 61.88 3.65 65.80 61.50 4.30   0.65
     10  0.78-0.27 0.74 1.61 0.90 0.97       65.60-0.06       64.96 0.85   0.91
      4  9.31 8.85 9.31 9.72 9.42 9.22       56.71 8.83       56.63 9.17   0.34
     12 -3.45-4.34-3.57-2.75-3.31-3.24       69.77-4.24       69.13-3.33   0.91
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.56  1.33                   1.43  1.27 1.12  1.60  1.46 1.09   0.97
     10         1.42                         1.39 1.03        1.58 1.01   0.98
      4         1.27                         1.27 1.13        1.24 1.29   1.15
     12         1.33                         1.16 1.24        1.56 1.02   0.83
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.93(F  7 - 61.50)(1.09) + 65.80      0.90(F 10 - 64.96)(1.01) + 65.80

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9  10   4    0.833 0.753 0.750 0.741
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.7 72.7 73.1 75.2 75.3 74.0 73.0 72.8 77.1 71.1 75.3 74.7 73.9 72.8 72.1
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  4 64.8 64.2 64.0 64.8 65.6 65.4 65.0 63.9 67.1 63.0 65.6 66.1 65.2 63.9 63.5
S-  7  4.7  4.2  4.1  4.1  4.2  4.0  3.9  3.9  4.9  4.3  4.8  4.9  4.4  4.7  4.6
S-  9  7.5  6.5  6.5  6.7  5.7  6.8  6.6  6.4  6.6  6.0  7.0  8.0  6.8  6.3  7.6
S- 10  2.4  1.3  1.3  1.2  1.4  2.7  1.2  0.7  2.3  1.1  1.4  2.4  1.8  1.2  2.4
S-  4  8.8  8.5  9.1 10.4  9.8  8.6  8.0  8.9 10.0  8.2  9.6  8.6  8.8  8.9  8.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.25 3.35 4.11 4.87 4.37 4.65 72.84 69.39 3.45 73.80 69.42 4.37   0.93
      9  6.46 5.32 6.23 7.19 6.78 6.91       67.31 5.53       67.04 6.75   1.22
     10  1.57 0.36 1.69 2.40 1.67 1.79       72.15 0.69       72.15 1.65   0.95
      4  8.74 8.12 8.74 8.82 9.15 8.94       64.67 8.17       64.81 8.98   0.81
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.45  1.20                   1.26  1.07 1.17  1.46  1.38 1.06   0.90
      9         1.42                         1.45 0.87        1.53 0.96   1.10
     10         1.30                         1.15 1.09        1.40 1.05   0.96
      4         1.05                         1.22 1.03        1.04 1.40   1.35
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.91(F  7 - 69.42)(1.06) + 73.80      0.87(F  9 - 67.04)(0.96) + 73.80

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6  10    0.769 0.725 0.675 0.667
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 79.1 77.1 76.1 77.4 79.2 79.0 77.4 76.9 79.4 75.1 79.3 78.9 79.2 77.1 77.1
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
S-  7  4.8  4.0  4.1  4.0  4.6  4.1  4.2  3.8  4.8  4.4  5.0  4.9  4.7  4.8  5.0
S-  9  7.7  6.6  6.9  6.4  6.5  6.9  6.6  6.7  7.5  6.5  7.2  7.6  6.8  7.3  7.9
S-  6  6.3  6.3  7.2  6.6  6.8  6.1  6.7  7.1  6.5  7.1  7.4  7.9  5.8  6.6  7.6
S- 10  3.0  1.9  1.7  0.8  1.7  3.0  1.5  1.2  2.7  1.0  2.2  2.6  2.7  2.3  3.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.23 3.15 4.00 4.94 4.42 4.79 76.40 73.07 3.33 77.88 73.42 4.47   1.14
      9  6.85 5.56 6.85 7.69 7.01 7.27       70.51 5.89       70.87 7.01   1.13
      6  6.51 5.10 6.42 7.32 6.85 6.98       70.99 5.41       71.09 6.79   1.38
     10  1.92 0.61 2.07 2.71 1.97 2.36       75.44 0.96       75.81 2.08   1.12
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.37  1.05                   0.95  0.92 1.04  1.33  1.18 1.12   1.08
      9         1.17                         1.06 0.90        1.25 1.06   1.18
      6         1.34                         1.30 0.73        1.57 0.84   1.16
     10         1.07                         0.93 1.02        1.08 1.23   1.20
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.88(F  7 - 73.42)(1.12) + 77.88      0.85(F  9 - 70.87)(1.06) + 77.88

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.823 0.761 0.753 0.719
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 78.3 74.2 75.9 75.6 77.8 77.2 75.6 75.2 77.5 74.2 77.9 75.9 77.9 74.9 76.2
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd  8 67.9 65.2 66.5 66.5 67.5 68.4 66.8 66.2 68.1 65.3 68.0 66.2 68.7 66.8 65.9
S-  7  5.0  3.8  4.3  3.9  5.0  4.3  4.2  3.9  4.9  4.2  4.9  4.7  4.8  4.2  5.2
S- 10  2.9  1.7  2.4  0.7  1.5  2.6  1.6  0.9  2.2  0.4  1.6  2.2  2.8  1.8  2.7
S-  9  8.2  6.8  7.4  5.8  6.9  6.5  6.5  6.1  7.3  5.9  6.8  7.5  7.6  7.3  8.4
S-  8 10.4  9.1  9.4  9.1 10.3  8.8  8.8  9.0  9.4  9.0  9.9  9.6  9.3  8.2 10.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.25 3.17 3.99 5.04 4.49 4.71 75.20 71.85 3.35 76.30 71.81 4.49   1.14
     10  1.77 0.58 1.89 2.42 2.05 1.95       74.33 0.87       74.43 1.87   1.01
      9  6.85 5.58 6.84 7.65 7.02 7.25       69.36 5.84       69.30 7.00   1.16
      8  9.17 7.91 8.8810.17 9.57 9.38       67.05 8.16       66.93 9.37   1.21
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.55  1.19                   1.39  1.31 1.06  1.35  1.04 1.29   1.22
     10         1.24                         1.12 1.25        1.08 1.24   1.00
      9         1.38                         1.36 1.03        1.21 1.12   1.09
      8         1.38                         1.68 0.83        1.08 1.25   1.51
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.91(F  7 - 71.81)(1.29) + 76.30      0.87(F 10 - 74.43)(1.24) + 76.30

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.840 0.809 0.768 0.762
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.3 70.4 69.9 68.9 68.3 68.0 69.6 69.6 70.4 66.3 69.5 68.2 71.5 68.8 69.2
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd  8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3
S-  7  4.9  4.2  4.0  3.8  4.6  4.4  4.2  4.0  4.7  3.8  4.5  4.9  4.7  4.2  4.9
S- 10  2.3  1.2  1.1  0.3  1.0  1.8  1.5  1.0  2.0  0.1  0.8  1.9  2.4  1.5  2.1
S-  9  7.6  6.1  6.2  5.6  6.4  6.6  7.0  6.4  7.0  5.3  6.2  6.9  7.3  6.7  8.0
S-  8 10.2  9.2  9.0  8.8  9.9  9.1  9.3  9.0  9.3  8.6  9.6  9.8  9.0  8.2  9.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.21 3.13 3.91 5.11 4.46 4.52 68.68 65.38 3.30 69.32 64.95 4.38   1.08
     10  1.32 0.20 1.33 2.00 1.58 1.55       68.22 0.46       67.92 1.41   0.95
      9  6.55 5.38 6.45 7.49 6.71 6.78       63.15 5.53       62.70 6.63   1.10
      8  9.16 7.93 8.7910.34 9.53 9.19       60.57 8.11       60.06 9.26   1.15
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.63  1.41                   1.46  1.37 1.07  1.30  1.22 1.07   1.00
     10         1.42                         1.31 1.12        1.07 1.22   1.10
      9         1.50                         1.33 1.10        1.10 1.19   1.08
      8         1.57                         1.59 0.92        1.25 1.04   1.13
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.92(F  7 - 64.95)(1.07) + 69.32      0.90(F 10 - 67.92)(1.22) + 69.32

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9   8    0.829 0.804 0.786 0.751
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 61.1 59.8 62.4 59.5 58.7 57.7 59.9 61.5 60.0 57.9 59.2 60.8 58.8 58.0 58.7
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
S-  7  4.7  3.8  3.9  3.8  4.0  4.3  4.0  4.2  4.4  3.8  4.1  4.7  3.6  4.1  4.1
S- 10  1.7  0.3 -0.7 -1.2  0.2  1.3  0.2  0.7  0.8 -0.6 -0.9  1.4  0.6  0.8  0.8
S-  9  7.5  5.9  4.9  4.7  6.0  6.6  6.5  6.3  6.6  5.0  5.5  6.7  6.8  6.9  7.2
S-  8  9.9  9.0  9.2  8.9  9.0  9.1  9.4  9.0  9.4  8.5  9.3  9.7  8.9  8.5  9.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  4.06 3.03 3.75 5.08 4.33 4.11 59.09 55.94 3.15 59.62 55.53 4.09   0.94
     10  0.54-0.39 0.56 1.37 0.74 0.41       59.27-0.19       59.25 0.36   0.55
      9  6.26 5.37 6.00 7.22 6.35 6.39       53.73 5.36       53.41 6.20   0.85
      8  9.01 7.87 8.4610.21 9.43 9.08       51.17 7.92       50.48 9.14   1.22
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.63  1.45                   1.16  1.11 1.05  1.34  1.28 1.05   1.00
     10         1.52                         0.78 1.48        1.55 0.87   0.58
      9         1.66                         0.90 1.29        1.63 0.82   0.64
      8         1.60                         1.18 0.98        1.16 1.15   1.17
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.91(F  7 - 55.53)(1.05) + 59.62      0.90(F 10 - 59.25)(0.87) + 59.62

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9  10  38    0.898 0.861 0.855 0.851
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.9 52.3 50.6 49.1 48.5 47.6 45.4 53.1 50.5 48.1 48.3 52.2 47.0 48.9 48.9
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S-  7  4.2  3.3  3.8  3.3  3.5  4.1  3.9  4.1  4.1  3.7  3.6  4.4  3.6  4.2  3.8
S-  9  6.7  4.6  4.7  4.7  5.0  6.4  6.0  6.4  6.1  5.3  5.4  5.8  6.0  6.2  6.7
S- 10  0.2 -1.0 -2.0 -1.9 -0.5  0.5 -1.2  0.0 -0.2 -1.0 -1.1  0.1 -0.5  0.2  0.4
S- 38  4.6  2.9  3.2  3.0  3.1  3.9  4.1  4.9  3.9  3.3  4.1  3.5  4.5  3.7  4.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  3.88 2.94 3.56 4.98 4.03 3.91 48.20 45.16 3.04 49.30 45.46 3.83   0.80
      9  5.80 5.03 5.37 6.85 5.86 5.93       43.22 4.98       43.56 5.73   0.75
     10 -0.36-1.17-0.67 0.61-0.26-0.30       49.29-1.09       49.82-0.52   0.57
     38  3.72 2.86 3.29 4.79 3.80 3.95       45.35 2.85       45.48 3.82   0.97
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.04  1.92                   1.38  1.48 0.93  2.02  1.99 1.02   1.09
      9         2.15                         1.54 0.90        2.26 0.90   1.00
     10         1.96                         1.43 0.97        2.11 0.96   0.99
     38         2.17                         1.48 0.93        2.20 0.92   0.99
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.95(F  7 - 45.46)(1.02) + 49.30      0.93(F  9 - 43.56)(0.90) + 49.30

Station#1881  WASHINGTON DC/NATION, va  4890602    lat/lon 77.03   38.85     0M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9  10   8    0.928 0.907 0.901 0.886
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 39.4 40.7 41.9 40.2 40.7 42.7 39.7 44.9 43.0 42.6 38.4 45.6 37.1 41.3 40.7
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  8 29.0 32.1 32.1 31.5 32.4 34.1 30.3 35.2 33.7 34.1 29.2 36.2 28.5 32.0 35.1
S-  7  4.3  3.0  3.6  3.3  3.6  3.9  3.9  4.6  3.9  3.6  3.4  3.7  3.3  4.3  0.8
S-  9  6.2  4.9  5.2  4.3  4.2  4.7  5.4  5.4  5.9  4.6  4.8  5.8  4.5  6.2  3.4
S- 10 -0.8 -1.8 -2.3 -2.2 -1.4 -0.7 -2.0 -1.1 -1.5 -1.6 -2.8 -0.8 -2.0 -0.5 -2.8
S-  8 10.4  8.7  9.8  8.8  8.2  8.6  9.4  9.8  9.3  8.5  9.3  9.4  8.6  9.3  5.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  3.81 3.11 3.60 4.94 3.96 3.30 40.06 36.91 3.15 41.27 37.72 3.55   0.40
      9  5.33 4.67 5.02 6.55 5.31 5.02       35.43 4.63       36.24 5.03   0.40
     10 -1.38-2.02-1.70-0.39-1.17-1.71       42.12-2.06       42.90-1.62   0.44
      8  9.17 8.35 8.6810.71 9.34 8.57       31.71 8.36       32.36 8.91   0.56
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.52  2.43                   1.98  1.96 1.01  2.20  2.15 1.03   1.02
      9         2.64                         2.20 0.90        2.10 1.05   1.16
     10         2.36                         1.90 1.04        1.95 1.13   1.08
      8         2.70                         2.15 0.92        2.31 0.95   1.04
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.96(F  7 - 37.72)(1.03) + 41.27      0.95(F  9 - 36.24)(1.05) + 41.27

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 41.85 44.07 49.47 57.27 65.84 72.40 75.60 74.32 68.87 59.30 50.16 43.98
1952 42.26 43.80 49.02 56.83 66.47 72.14 74.58 72.72 65.24 57.71 47.91 45.19
1953 43.88 46.89 51.30 60.00 68.45 75.61 77.05 75.58 69.19 60.24 51.49 44.56
1954 43.58 45.14 52.16 57.69 66.22 71.64 75.93 75.88 71.02 61.10 49.72 40.90
1955 39.09 43.21 51.69 60.23 66.47 72.81 76.85 77.13 70.34 60.15 48.58 40.40
1956 38.79 42.66 49.19 56.31 65.22 72.59 76.25 74.52 69.21 60.42 54.08 45.81
1957 43.77 42.87 51.26 59.09 68.67 73.93 76.30 75.19 67.53 59.69 50.28 43.44
1958 38.26 37.74 45.26 55.35 64.67 72.28 75.92 75.61 68.78 60.95 49.43 42.39
1959 38.68 43.28 50.53 59.38 68.25 74.09 77.29 76.23 71.35 61.86 52.32 44.58
1960 41.51 39.36 46.59 54.71 67.08 71.72 76.05 75.20 69.87 60.93 48.86 40.14
1961 37.43 42.99 49.88 56.49 63.48 71.37 75.87 76.52 70.43 62.11 50.42 43.10
1962 39.34 41.32 47.96 57.52 67.03 72.68 74.72 73.00 68.52 59.39 48.91 40.35
1963 36.04 41.49 49.23 58.92 65.63 71.46 75.15 73.34 67.85 59.99 48.83 42.25
1964 37.78 43.15 48.62 58.00 66.20 72.65 75.02 73.55 66.51 59.72 51.67 46.10
1965 41.78 41.34 46.87 56.61 65.93 72.85 75.12 75.38 69.12 60.43 50.62 42.91
1966 39.09 41.10 47.95 56.59 64.42 72.05 75.78 74.61 67.89 59.11 49.40 44.46
1967 40.57 43.52 49.02 56.57 64.42 69.65 74.20 72.45 66.69 56.82 48.99 41.06
1968 37.52 40.33 47.73 57.56 65.06 72.07 76.74 75.43 69.98 61.48 51.11 42.50
1969 37.70 39.26 47.12 56.09 66.90 73.24 76.39 74.18 68.06 59.23 49.09 39.81
1970 37.00 38.81 46.95 56.33 66.75 73.39 76.12 75.99 71.51 63.17 52.56 43.24
1971 39.74 40.87 47.68 55.59 65.41 72.45 76.10 75.11 71.47 63.00 55.79 48.13
1972 44.78 43.90 48.35 56.64 64.13 70.96 74.42 74.38 67.71 59.05 51.36 45.16
1973 41.82 43.61 49.87 58.14 65.83 72.63 77.05 76.48 71.14 62.92 52.96 48.13
1974 44.56 47.53 51.84 59.97 66.21 71.67 74.83 74.45 67.92 59.23 50.53 45.45
1975 43.44 44.57 48.17 56.10 65.15 72.83 76.34 75.01 70.58 62.64 53.31 44.62
1976 42.98 46.62 54.18 59.14 66.26 71.93 75.46 74.15 67.17 56.67 46.10 36.48
1977 35.56 40.54 51.98 60.34 66.58 73.03 77.24 77.77 70.09 61.08 50.07 42.29
1978 35.27 36.54 44.20 54.55 64.08 70.32 75.48 74.86 68.87 60.93 52.25 45.71
1979 38.25 40.40 46.83 58.45 64.80 70.82 74.07 74.33 68.79 61.31 52.16 44.98
1980 38.60 39.55 46.55 57.34 66.49 73.41 77.55 77.94 70.50 59.68 48.13 39.40
1981 38.11 39.71 49.68 56.51 67.42 73.05 76.29 73.51 66.79 58.35 48.05 39.67
1982 37.27 40.76 48.18 56.97 65.07 72.48 74.54 73.55 67.28 60.09 52.74 45.72
1983 41.46 42.47 48.02 56.27 63.81 71.97 76.30 75.68 69.35 60.22 49.34 40.28
1984 38.21 39.88 47.19 54.79 65.76 72.74 76.13 73.74 70.37 61.00 54.74 44.00
1985 41.35 41.70 51.19 59.96 67.22 72.18 74.59 73.96 69.11 63.17 52.13 43.89
1986 38.64 42.76 49.81 58.64 67.56 74.76 76.79 74.77 68.50 60.67 51.05 42.10
1987 37.65 39.53 45.78 55.67 64.75 73.23 76.56 75.51 66.76 58.11 48.52 41.64
1988 37.83 39.61 47.08 55.07 63.51 71.62 76.88 75.83 67.57 58.44 49.22 45.34
1989 41.96 44.35 48.50 55.98 65.24 72.58 76.54 75.03 69.44 60.97 47.70 42.63
1990 41.84 49.01 53.07 58.63 65.70 72.87 76.55 75.09 69.76 61.93 54.67 47.28
1991 44.63 45.88 52.23 61.00 68.49 74.85 76.92 75.97 69.35 60.22 51.93 45.59
1992 43.29 43.71 49.21 55.43 63.04 70.11 73.68 74.30 67.00 60.03 50.18 45.32
1993 40.85 41.99 46.69 56.25 65.92 74.16 77.64 76.92 69.76 61.14 50.04 41.77
1994 38.33 42.29 51.75 58.92 67.77 73.15 77.07 74.74 67.82 60.92 53.28 47.37
1995 42.35 43.63 49.51 58.42 65.96 72.94 76.99 75.70 70.00 59.73 49.08 40.37
1996 37.93 40.48 47.85 56.41 66.44 72.26 75.32 74.02 68.57 58.70 50.30 43.58
1997 43.67 45.76 50.44 56.34 63.18 71.26 75.09 74.81 68.68 59.91 50.18 42.82

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.973 0.936 0.930 0.925
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.5 38.2 41.3 38.6 37.7 37.8 42.0 41.8 44.6 43.3 40.8 38.3 42.3 37.9 43.7
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
S- 10  0.8 -0.3  1.1 -0.3 -0.7 -0.3  1.3  0.9  1.2  0.6  0.5  0.8  0.9  0.7  1.9
S-  9  6.2  6.8  8.5  7.1  5.2  5.7  7.4  8.1  8.3  7.5  7.0  8.0  8.2  7.3  8.2
S-  7  5.2  5.5  6.5  6.3  4.5  5.0  7.0  7.3  7.2  6.9  6.5  8.0  6.5  6.5  7.0
S- 13 -1.8 -3.5 -2.1 -3.9 -3.8 -3.1 -2.3 -2.8 -1.2 -2.7 -2.1 -2.7 -1.3 -2.9 -1.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.85 0.79 0.98 1.20 0.39 0.93 40.27 39.40 0.87 40.67 40.07 0.59  -0.28
      9  7.74 7.40 8.04 8.44 7.05 7.79       32.62 7.65       33.35 7.32  -0.33
      7  6.75 6.42 7.06 7.36 6.00 6.95       33.45 6.82       34.28 6.39  -0.43
     13 -2.46-2.76-2.44-2.06-2.92-2.00       42.99-2.72       43.16-2.49   0.22
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.62  2.48                   2.45  2.49 0.98  2.29  1.82 1.26   1.28
      9         2.89                         2.99 0.82        1.85 1.24   1.52
      7         2.52                         2.68 0.91        2.00 1.15   1.26
     13         2.54                         2.78 0.88        1.66 1.38   1.57
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.99(F 10 - 40.07)(1.26) + 40.67      0.97(F  9 - 33.35)(1.24) + 40.67

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   9    0.979 0.942 0.940 0.929
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 42.5 39.9 41.7 42.8 39.5 39.6 44.3 49.0 45.9 43.7 42.0 42.3 43.6 40.5 45.8
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0
cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
S- 10  0.7 -0.8  0.8  0.2 -0.7 -0.2  0.8  0.8  0.9  0.1  0.4  1.5  0.7  1.1  1.6
S- 12 -4.6 -7.9 -5.8 -6.8 -6.9 -6.2 -6.5 -5.5 -5.3 -6.0 -6.4 -6.8 -5.2 -6.4 -6.2
S- 13 -1.9 -5.2 -3.0 -3.9 -4.4 -3.5 -3.3 -2.4 -2.1 -3.5 -2.8 -3.0 -2.4 -2.9 -3.2
S-  9  6.4  6.0  8.2  6.9  4.2  5.7  6.2  7.0  7.9  6.7  6.8  9.1  7.6  7.7  7.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.74 0.58 0.96 1.00 0.29 0.89 42.62 41.89 0.73 42.87 42.35 0.52  -0.21
     12 -5.96-5.97-5.62-5.90-6.30-6.04       48.54-5.92       49.03-6.16  -0.24
     13 -3.07-3.31-2.79-2.83-3.50-2.83       45.76-3.14       46.03-3.16  -0.02
      9  7.37 7.26 7.60 7.91 6.52 7.65       35.21 7.41       35.92 6.95  -0.46
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.59  2.45                   2.14  2.14 1.00  2.55  2.25 1.14   1.14
     12         2.68                         2.35 0.91        2.27 1.13   1.24
     13         2.57                         2.47 0.86        2.21 1.16   1.34
      9         2.79                         2.46 0.87        2.36 1.08   1.24
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.99(F 10 - 42.35)(1.14) + 42.87      0.97(F 12 - 49.03)(1.13) + 42.87

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  13  12   9    0.974 0.919 0.914 0.914
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 48.0 47.2 51.2 49.8 45.8 47.1 48.5 53.1 52.2 49.2 46.7 51.8 49.5 47.8 50.4
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
S- 10  0.7 -0.4  0.8  0.3 -0.6 -0.4  0.5  0.8  1.0  0.1  0.5  1.5  0.9  1.5  1.1
S- 13 -2.1 -4.1 -2.5 -4.4 -4.2 -4.0 -3.8 -2.3 -2.6 -3.3 -2.3 -2.2 -3.1 -2.2 -3.2
S- 12 -4.4 -6.8 -4.8 -6.7 -6.0 -6.1 -6.2 -5.1 -5.2 -5.5 -5.1 -5.0 -5.5 -4.9 -6.1
S-  9  6.1  5.7  7.5  5.7  3.9  5.1  6.3  6.9  7.0  6.0  6.8  8.2  7.3  8.0  7.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.80 0.78 0.95 1.04 0.32 0.94 49.27 48.40 0.87 49.22 48.67 0.55  -0.32
     13 -2.97-2.84-3.07-2.76-3.42-2.70       52.13-2.86       52.32-3.09  -0.24
     12 -5.31-5.04-5.36-5.10-5.73-5.32       54.41-5.14       54.77-5.55  -0.41
      9  6.86 7.11 6.74 7.21 6.13 7.21       42.19 7.08       42.70 6.52  -0.56
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.15  1.97                   1.92  1.95 0.99  2.11  1.80 1.18   1.19
     13         1.96                         2.04 0.94        1.92 1.10   1.17
     12         1.96                         1.90 1.01        2.02 1.05   1.03
      9         2.04                         2.10 0.91        1.69 1.25   1.37
Suggested regression eqns from two most closely related CDs ( 10 and  13): 
          0.99(F 10 - 48.67)(1.18) + 49.22      0.96(F 13 - 52.32)(1.10) + 49.22

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10  12  13   7    0.958 0.879 0.877 0.873
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.3 54.8 60.0 58.6 55.7 55.1 56.0 58.6 61.0 55.4 56.3 58.9 58.4 56.4 56.3
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
cd  7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7
S- 10  0.8  0.5  0.8  1.0 -0.3 -0.6  0.8  0.7  1.1  0.3  0.6  1.7  1.1  1.5  1.3
S- 12 -3.8 -5.8 -3.7 -4.3 -4.9 -5.6 -4.9 -4.6 -4.2 -4.5 -3.9 -3.8 -5.1 -4.4 -5.4
S- 13 -1.8 -3.2 -1.9 -2.5 -3.7 -3.9 -2.6 -2.3 -1.8 -2.5 -1.7 -1.5 -3.1 -2.1 -2.7
S-  7  5.0  5.6  5.2  4.9  2.9  3.2  5.1  5.7  5.5  5.5  5.3  7.0  6.0  6.4  5.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.88 0.77 1.00 1.12 0.49 1.09 57.63 56.76 0.86 57.19 56.44 0.75  -0.11
     12 -4.42-4.30-4.43-4.20-4.72-4.47       61.92-4.29       61.78-4.59  -0.30
     13 -2.51-2.58-2.70-2.18-2.81-2.19       60.19-2.57       59.67-2.48   0.08
      7  5.48 5.55 5.76 5.57 4.75 5.90       52.01 5.62       51.92 5.26  -0.36
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.66  1.52                   1.59  1.54 1.04  1.84  1.62 1.14   1.10
     12         1.46                         1.46 1.09        1.58 1.17   1.07
     13         1.53                         1.59 1.00        1.57 1.17   1.18
      7         1.59                         1.43 1.11        1.74 1.06   0.96
Suggested regression eqns from two most closely related CDs ( 10 and  12): 
          0.98(F 10 - 56.44)(1.14) + 57.19      0.94(F 12 - 61.78)(1.17) + 57.19

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7  12   9    0.938 0.910 0.860 0.843
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 63.8 65.8 67.2 67.6 64.8 63.5 65.2 65.7 68.5 63.0 65.9 67.8 66.0 66.4 63.2
cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7
cd  7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1
cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
S- 10  0.6  1.2  0.5  0.8 -0.6 -0.3  0.6  0.7  0.6  0.3  0.5  1.4  1.0  1.2  1.5
S-  7  3.7  4.8  4.4  4.5  2.4  2.6  4.0  4.4  3.8  4.0  4.2  4.7  5.0  5.1  4.0
S- 12 -3.2 -3.0 -3.5 -3.4 -4.3 -4.3 -3.7 -4.1 -3.5 -3.9 -3.0 -2.1 -4.2 -3.4 -3.0
S-  9  5.8  6.2  6.0  5.8  3.7  4.2  6.8  6.3  4.7  5.1  5.9  7.2  6.2  6.2  7.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.83 0.64 1.04 1.09 0.49 0.92 66.37 65.60 0.78 65.62 64.96 0.67  -0.11
      7  4.39 4.50 4.54 4.49 4.01 4.42       61.88 4.49       61.50 4.12  -0.37
     12 -3.40-3.43-3.28-3.27-3.72-3.29       69.77-3.40       69.13-3.51  -0.11
      9  5.85 5.86 5.58 6.12 5.69 6.05       60.56 5.81       59.81 5.82   0.00
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.41  1.42                   1.36  1.39 0.98  1.66  1.58 1.05   1.07
      7         1.33                         1.27 1.07        1.46 1.13   1.06
     12         1.33                         1.16 1.17        1.56 1.06   0.91
      9         1.51                         1.56 0.87        1.75 0.95   1.09
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.97(F 10 - 64.96)(1.05) + 65.62      0.95(F  7 - 61.50)(1.13) + 65.62

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  12    0.899 0.849 0.802 0.778
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.0 72.7 72.2 74.8 73.2 71.6 72.6 72.9 74.8 70.1 74.2 73.2 72.9 72.3 71.3
cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7
cd  7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2
S- 10  0.7  1.3  0.4  0.8 -0.8  0.3  0.8  0.7  0.1  0.0  0.3  0.8  0.8  0.6  1.6
S-  7  3.0  4.2  3.1  3.7  2.1  1.6  3.5  4.0  2.7  3.3  3.7  3.3  3.4  4.2  3.7
S-  9  5.8  6.6  5.6  6.2  3.6  4.5  6.2  6.5  4.4  5.0  5.9  6.5  5.8  5.7  6.8
S- 12 -2.8 -2.1 -3.5 -2.9 -3.2 -2.5 -2.7 -3.4 -2.7 -4.0 -3.0 -1.9 -2.9 -3.8 -2.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.68 0.38 0.86 1.02 0.53 0.61 72.68 72.15 0.53 72.71 72.15 0.56   0.03
      7  3.36 3.37 3.28 3.50 3.23 3.46       69.39 3.29       69.42 3.29   0.00
      9  5.57 5.34 5.40 5.82 5.64 5.73       67.31 5.37       67.04 5.67   0.30
     12 -2.69-2.90-2.41-2.43-2.91-2.89       75.47-2.79       75.59-2.88  -0.09
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.17  1.30                   1.09  1.15 0.95  1.23  1.40 0.88   0.92
      7         1.20                         1.07 1.02        1.38 0.89   0.87
      9         1.42                         1.45 0.75        1.53 0.80   1.07
     12         1.23                         1.04 1.05        1.25 0.98   0.94
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.95(F 10 - 72.15)(0.88) + 72.71      0.92(F  7 - 69.42)(0.89) + 72.71

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  38    0.796 0.771 0.725 0.654
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 76.3 76.1 74.6 76.8 76.6 76.9 76.5 76.6 76.9 73.7 77.6 77.1 77.0 75.3 75.1
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
S- 10  0.2  1.0  0.2  0.2 -1.0  0.8  0.6  0.8  0.2 -0.3  0.4  0.8  0.5  0.6  1.1
S-  7  2.0  3.1  2.6  3.4  1.9  1.9  3.3  3.4  2.3  3.0  3.3  3.1  2.5  3.0  3.0
S-  9  4.9  5.7  5.5  5.8  3.8  4.8  5.8  6.3  5.0  5.1  5.5  5.8  4.6  5.6  5.9
S- 38  1.1  2.8  2.6  2.7  1.8  2.0  3.7  4.0  2.5  3.3  3.3  3.6  1.7  2.9  3.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.57 0.21 0.79 0.94 0.39 0.46 75.85 75.44 0.41 76.20 75.81 0.40  -0.01
      7  2.87 2.75 2.72 3.17 2.84 2.88       73.07 2.78       73.42 2.79   0.01
      9  5.50 5.16 5.57 5.92 5.42 5.36       70.51 5.34       70.87 5.33   0.00
     38  2.68 1.93 2.93 3.01 2.66 2.96       73.63 2.22       73.43 2.77   0.55
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   0.99  1.07                   0.80  0.93 0.86  1.04  1.08 0.96   1.12
      7         1.05                         0.92 0.87        1.18 0.88   1.01
      9         1.17                         1.06 0.75        1.25 0.83   1.10
     38         1.33                         1.30 0.61        1.39 0.74   1.21
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.89(F 10 - 75.81)(0.96) + 76.20      0.88(F  7 - 73.42)(0.88) + 76.20

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  12    0.888 0.829 0.827 0.778
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 75.7 73.7 74.0 74.8 75.5 75.8 75.0 75.1 76.0 74.3 76.9 74.7 75.7 74.0 74.8
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9
S- 10  0.3  1.2  0.5 -0.1 -0.8  1.2  1.0  0.8  0.6  0.4  0.6  1.1  0.6  0.9  1.3
S-  7  2.3  3.3  2.3  3.0  2.7  2.9  3.7  3.8  3.3  4.2  3.9  3.6  2.6  3.3  3.8
S-  9  5.5  6.3  5.5  5.0  4.6  5.1  6.0  6.0  5.8  6.0  5.8  6.4  5.3  6.4  7.0
S- 12 -2.6 -2.0 -2.7 -3.9 -3.4 -1.9 -2.1 -3.1 -2.0 -3.5 -2.4 -1.6 -2.0 -2.7 -2.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.73 0.42 0.91 1.01 0.57 0.78 74.94 74.33 0.61 75.07 74.43 0.64   0.03
      7  3.22 3.02 3.01 3.63 3.00 3.54       71.85 3.09       71.81 3.26   0.17
      9  5.81 5.43 5.86 6.23 5.54 6.08       69.36 5.58       69.30 5.77   0.18
     12 -2.27-2.46-2.06-1.83-2.67-2.34       77.28-2.34       77.61-2.53  -0.20
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.21  1.24                   1.28  1.12 1.15  0.85  1.08 0.78   0.68
      7         1.19                         1.31 0.98        1.04 0.81   0.83
      9         1.38                         1.36 0.95        1.21 0.70   0.74
     12         1.09                         0.92 1.39        0.97 0.87   0.63
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.94(F 10 - 74.43)(0.78) + 75.07      0.91(F  7 - 71.81)(0.81) + 75.07

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9   8    0.912 0.894 0.875 0.849
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 69.3 70.4 69.1 68.5 66.8 67.6 69.4 69.8 69.3 67.0 69.8 67.8 70.0 68.6 68.7
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd  8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3
S- 10  0.4  1.1  0.3 -0.1 -0.5  1.4  1.3  1.2  0.9  0.8  1.1  1.5  0.9  1.3  1.6
S-  7  3.0  4.1  3.2  3.4  3.1  4.0  4.1  4.2  3.6  4.5  4.8  4.5  3.2  3.9  4.4
S-  9  5.6  6.1  5.4  5.2  4.9  6.2  6.8  6.6  5.9  6.0  6.5  6.5  5.8  6.5  7.5
S-  8  8.2  9.2  8.2  8.4  8.4  8.7  9.2  9.2  8.2  9.3  9.9  9.4  7.5  8.0  9.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.92 0.51 1.11 1.14 0.73 1.16 68.92 68.22 0.70 68.80 67.92 0.89   0.19
      7  3.81 3.45 3.70 4.26 3.61 4.14       65.38 3.54       64.95 3.86   0.32
      9  6.15 5.70 6.23 6.63 5.86 6.39       63.15 5.77       62.70 6.11   0.34
      8  8.76 8.25 8.58 9.49 8.68 8.81       60.57 8.35       60.06 8.74   0.39
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.46  1.42                   1.60  1.31 1.22  1.06  1.07 1.00   0.82
      7         1.41                         1.37 1.17        1.22 0.87   0.75
      9         1.50                         1.33 1.20        1.10 0.97   0.81
      8         1.57                         1.59 1.01        1.25 0.85   0.84
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.96(F 10 - 67.92)(1.00) + 68.80      0.95(F  7 - 64.95)(0.87) + 68.80

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  13    0.942 0.915 0.909 0.890
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 60.2 61.0 63.2 60.7 58.1 58.4 61.0 61.9 60.2 60.0 61.1 60.9 59.7 58.7 59.9
cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
S- 10  0.8  1.4  0.1  0.0 -0.3  2.0  1.3  1.2  1.0  1.5  1.0  1.5  1.5  1.4  2.0
S-  9  6.6  7.0  5.6  5.8  5.4  7.4  7.6  6.8  6.8  7.0  7.4  6.7  7.7  7.6  8.4
S-  7  3.8  4.9  4.6  4.9  3.4  5.0  5.1  4.7  4.6  5.9  6.0  4.8  4.5  4.8  5.3
S- 13 -0.7 -0.6 -1.8 -2.4 -1.7 -0.4 -0.1 -0.9 -0.2 -0.2 -0.4  0.1  0.0 -0.3  0.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.14 0.85 1.33 1.31 0.87 1.41 60.27 59.27 0.99 60.34 59.25 1.09   0.10
      9  6.85 6.61 6.77 7.16 6.48 7.39       53.73 6.54       53.41 6.93   0.40
      7  4.65 4.27 4.53 5.03 4.46 5.12       55.94 4.32       55.53 4.82   0.49
     13 -0.72-1.20-0.56-0.51-1.05-0.08       61.38-1.11       60.96-0.61   0.50
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.51  1.52                   1.05  0.78 1.34  1.28  1.55 0.83   0.62
      9         1.66                         0.90 1.16        1.63 0.78   0.67
      7         1.45                         1.11 0.95        1.28 1.00   1.06
     13         1.52                         0.79 1.32        1.60 0.80   0.60
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.97(F 10 - 59.25)(0.83) + 60.34      0.96(F  9 - 53.41)(0.78) + 60.34

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9   7  38    0.960 0.936 0.929 0.921
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 49.3 54.7 52.1 51.0 48.5 49.2 47.7 54.7 51.9 50.2 50.0 53.3 49.1 50.3 50.2
cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4
S- 10  0.7  1.5 -0.4  0.0 -0.5  2.1  1.2  1.6  1.2  1.1  0.6  1.2  1.5  1.6  1.6
S-  9  7.2  7.1  6.3  6.6  5.0  8.0  8.3  7.9  7.5  7.4  7.2  6.9  8.0  7.7  7.9
S-  7  4.6  5.8  5.3  5.2  3.5  5.7  6.2  5.7  5.5  5.8  5.4  5.5  5.6  5.6  5.0
S- 38  5.1  5.3  4.7  4.9  3.1  5.5  6.4  6.5  5.3  5.4  5.9  4.6  6.5  5.2  5.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  1.11 0.83 1.21 1.45 0.83 1.28 50.22 49.29 0.93 50.82 49.82 1.00   0.08
      9  7.27 7.03 7.24 7.69 6.94 7.51       43.22 7.00       43.56 7.26   0.26
      7  5.35 4.94 5.44 5.82 5.12 5.49       45.16 5.06       45.46 5.36   0.31
     38  5.19 4.86 5.16 5.63 4.88 5.53       45.35 4.87       45.48 5.35   0.48
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.05  1.96                   1.58  1.43 1.11  2.06  2.11 0.98   0.88
      9         2.15                         1.54 1.03        2.26 0.91   0.89
      7         1.92                         1.48 1.07        1.99 1.04   0.97
     38         2.17                         1.48 1.07        2.20 0.94   0.88
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.98(F 10 - 49.82)(0.98) + 50.82      0.97(F  9 - 43.56)(0.91) + 50.82

Station#1882  WILLIAMSBURG/2 N    , va  4915101    lat/lon 76.70   37.27     9M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   9  13  12    0.971 0.943 0.935 0.932
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 40.3 44.0 43.9 42.1 41.6 45.3 42.6 47.3 45.6 45.3 41.8 47.4 40.4 43.6 42.8
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9
S- 10  0.1  1.4 -0.3 -0.4 -0.4  1.9  0.9  1.3  1.0  1.0  0.6  1.0  1.2  1.8 -0.7
S-  9  7.1  8.2  7.2  6.2  5.2  7.3  8.3  7.8  8.4  7.3  8.1  7.5  7.8  8.4  5.5
S- 13 -2.9 -1.1 -2.6 -3.3 -2.7 -1.0 -2.2 -0.7 -0.9 -0.8 -1.4 -0.4 -1.4 -1.0 -2.0
S- 12 -6.3 -4.0 -6.2 -7.7 -6.2 -4.5 -5.6 -4.4 -3.6 -5.3 -5.7 -4.3 -5.4 -4.8 -6.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10  0.97 0.81 1.19 1.30 0.64 0.85 43.07 42.12 0.95 43.60 42.90 0.70  -0.25
      9  7.68 7.50 7.91 8.24 7.12 7.58       35.43 7.64       36.24 7.35  -0.29
     13 -1.66-2.25-1.57-1.20-1.97-1.13       45.11-2.04       45.23-1.63   0.41
     12 -4.99-5.14-4.59-4.69-5.50-5.03       48.06-4.99       48.94-5.34  -0.35
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   2.50  2.36                   1.93  1.90 1.02  2.17  1.95 1.11   1.10
      9         2.64                         2.20 0.88        2.10 1.03   1.18
     13         2.24                         1.95 0.99        1.65 1.31   1.33
     12         2.40                         2.02 0.95        1.66 1.30   1.36
Suggested regression eqns from two most closely related CDs ( 10 and   9): 
          0.99(F 10 - 42.90)(1.11) + 43.60      0.97(F  9 - 36.24)(1.03) + 43.60

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 36.16 39.11 44.98 53.45 62.63 69.88 73.43 72.66 67.38 56.40 45.99 39.00
1952 38.60 40.12 45.30 53.07 63.98 71.92 75.72 73.06 65.04 56.04 45.91 40.67
1953 38.66 41.92 47.00 55.79 64.99 72.94 75.57 73.95 67.71 57.86 48.24 39.80
1954 38.37 39.68 47.81 53.90 63.75 69.42 73.84 73.09 67.73 57.61 45.93 36.83
1955 34.43 38.09 46.82 56.46 63.85 71.02 74.88 74.73 67.15 55.80 44.00 35.70
1956 34.40 38.02 44.73 52.74 62.57 69.82 73.22 70.73 64.98 55.79 49.08 40.52
1957 38.61 38.39 47.02 55.54 65.67 71.95 74.76 73.57 65.71 56.62 46.30 39.05
1958 33.31 33.05 40.89 51.91 62.04 69.39 72.83 72.38 65.52 57.23 44.85 36.59
1959 33.02 37.52 46.10 55.80 65.47 71.64 75.23 74.45 68.74 57.47 47.15 39.50
1960 36.42 34.19 41.75 50.54 63.44 68.38 73.42 72.29 66.52 57.15 44.24 34.88
1961 31.39 37.47 44.70 52.03 60.19 68.94 74.31 74.71 69.00 59.71 47.02 38.40
1962 33.95 36.33 43.32 54.19 64.32 70.38 72.59 70.27 65.60 55.25 43.95 34.39
1963 29.70 35.29 43.98 55.22 63.34 69.78 73.06 71.10 66.08 58.09 45.83 36.72
1964 31.31 36.92 43.39 54.26 63.66 71.40 73.76 71.70 63.84 55.73 45.77 38.84
1965 34.75 35.84 42.90 53.80 63.77 71.18 73.06 72.90 65.80 56.79 47.16 38.76
1966 34.33 36.11 42.99 52.44 61.32 70.86 75.15 72.71 64.07 54.25 44.24 39.55
1967 34.72 37.58 43.38 52.28 61.65 67.36 71.71 69.10 62.51 52.37 43.30 34.31
1968 31.01 34.89 44.42 53.91 62.08 68.83 74.43 72.68 66.25 56.30 44.95 36.24
1969 32.02 34.68 43.64 54.10 65.12 71.24 73.53 71.28 64.32 54.37 42.83 33.46
1970 30.54 33.14 42.40 53.23 64.07 71.07 73.59 73.63 68.07 58.51 46.89 36.44
1971 33.22 34.79 43.47 51.79 62.33 69.32 72.81 71.70 66.96 58.13 49.49 41.45
1972 37.53 37.28 43.05 52.84 61.09 68.09 71.55 71.92 64.40 54.13 44.90 39.17
1973 36.68 39.66 45.59 54.10 61.93 69.27 74.10 72.94 67.20 58.35 47.40 41.49
1974 37.22 40.50 45.97 55.10 62.17 67.99 71.41 70.76 63.89 54.93 45.71 40.10
1975 36.87 38.17 42.32 52.10 62.05 69.99 73.08 70.48 65.66 57.21 48.00 38.27
1976 36.21 40.83 49.79 55.65 63.33 68.54 71.33 68.82 61.65 51.83 40.98 30.90
1977 29.27 35.41 47.74 57.71 64.47 71.30 74.29 73.81 65.47 55.87 44.00 34.66
1978 27.40 29.77 39.44 51.63 62.05 68.52 73.03 72.23 65.51 55.92 45.73 37.73
1979 30.43 33.88 41.69 54.00 60.15 66.35 69.79 69.04 62.81 54.79 45.86 38.41
1980 32.38 33.45 40.99 52.16 61.26 68.56 72.33 73.01 65.25 54.05 42.30 34.02
1981 32.22 34.11 44.19 51.99 62.18 67.65 71.06 69.40 61.57 53.01 41.70 32.86
1982 29.45 32.76 41.71 51.82 60.53 68.10 69.37 68.30 62.41 55.27 47.18 39.00
1983 34.40 35.44 41.57 50.15 58.96 67.43 72.89 71.77 64.65 53.92 41.80 32.11
1984 30.15 32.17 40.23 47.78 59.86 67.59 72.12 69.34 65.02 54.34 47.16 36.17
1985 33.54 34.04 43.61 52.96 61.22 67.31 70.32 69.72 63.54 56.51 45.18 37.15
1986 30.96 34.34 41.79 51.91 61.45 68.97 71.76 70.53 63.98 54.27 43.58 34.70
1987 31.82 34.59 41.43 51.37 61.21 70.27 73.73 71.67 62.08 53.03 43.45 35.48
1988 31.24 32.60 41.07 50.29 59.79 68.58 73.64 71.54 62.22 52.23 42.47 37.66
1989 33.59 36.32 41.31 49.96 60.10 68.29 72.03 69.93 63.42 54.02 39.37 33.96
1990 32.84 40.92 45.16 51.95 60.28 68.10 71.82 70.01 63.57 55.28 46.43 38.16
1991 34.94 36.61 43.82 54.30 63.78 72.44 74.65 72.68 64.83 54.42 44.93 37.20
1992 34.57 35.48 41.65 48.75 57.57 65.38 69.29 68.91 61.12 53.07 42.62 37.43
1993 32.84 34.32 39.01 49.80 60.58 69.84 73.77 72.97 64.76 54.42 42.91 33.05
1994 28.96 31.56 42.45 50.94 62.03 68.83 73.45 70.29 62.06 54.42 45.80 40.06
1995 33.90 36.11 41.33 51.14 59.74 68.41 73.88 71.92 65.37 53.12 42.07 32.89
1996 30.58 32.18 39.80 48.86 60.82 67.45 71.53 69.44 63.33 52.49 42.99 35.62
1997 35.36 37.87 43.27 49.39 57.65 66.41 71.40 70.02 63.06 52.89 43.36 35.95

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38   7  10    0.872 0.872 0.865 0.862
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 34.4 30.1 33.5 31.0 31.8 31.2 33.6 32.8 34.9 34.6 32.8 29.0 33.9 30.6 35.4
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
S-  9 -0.8 -1.2  0.7 -0.6 -0.6 -0.9 -0.9 -0.9 -1.4 -1.2 -1.0 -1.4 -0.3  0.0 -0.1
S- 38 -3.7 -2.3 -0.1 -2.5 -3.2 -2.7 -3.0 -3.0 -2.7 -3.6 -2.7 -3.1 -2.3 -1.9 -2.0
S-  7 -1.8 -2.6 -1.3 -1.4 -1.3 -1.6 -1.4 -1.7 -2.5 -1.8 -1.5 -1.4 -1.9 -0.8 -1.3
S- 10 -6.3 -8.4 -6.8 -8.0 -6.5 -6.9 -7.1 -8.1 -8.5 -8.2 -7.5 -8.6 -7.6 -6.6 -6.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.10 2.43 1.99 1.66-0.37-0.76 34.87 32.62 2.25 32.65 33.35-0.70  -2.95
     38 -0.90 0.12-0.06-0.09-2.36-2.62       34.82 0.06       35.24-2.59  -2.65
      7  0.11 1.45 1.01 0.58-1.41-1.61       33.45 1.42       34.28-1.63  -3.05
     10 -5.78-4.17-5.07-5.58-7.02-7.63       39.40-4.52       40.07-7.43  -2.90
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.81  2.89                   2.80  2.99 0.94  1.87  1.85 1.01   1.08
     38         3.07                         3.13 0.89        2.04 0.91   1.02
      7         2.52                         2.68 1.04        2.00 0.93   0.90
     10         2.48                         2.49 1.12        1.82 1.03   0.91
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.93(F  9 - 33.35)(1.01) + 32.65      0.93(F 38 - 35.24)(0.91) + 32.65

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10  38   9    0.840 0.838 0.832 0.829
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 35.4 32.2 34.0 34.3 34.6 32.6 36.3 40.9 36.6 35.5 34.3 31.6 36.1 32.2 37.9
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
S-  7 -1.6 -2.1 -1.6 -1.9 -1.0 -2.1 -1.0 -1.2 -2.3 -1.6 -0.7 -0.7 -1.3 -1.5 -0.6
S- 10 -6.4 -8.5 -6.9 -8.2 -5.7 -7.2 -7.2 -7.3 -8.3 -8.2 -7.3 -9.2 -6.8 -7.2 -6.3
S- 38 -3.4 -3.7 -0.8 -4.3 -4.2 -3.3 -4.1 -3.3 -3.4 -4.2 -2.8 -3.4 -2.1 -2.6 -2.0
S-  9 -0.6 -1.7  0.6 -1.5 -0.8 -1.4 -1.8 -1.1 -1.4 -1.5 -0.9 -1.6  0.1 -0.6  0.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  0.44 1.54 1.59 1.13-1.32-1.23 37.46 35.81 1.65 34.97 36.37-1.40  -3.06
     10 -5.57-4.31-4.54-5.04-6.96-7.63       41.89-4.43       42.35-7.38  -2.95
     38 -1.21-0.15-0.14-0.20-3.15-2.93       37.64-0.18       38.13-3.16  -2.99
      9  1.07 2.37 2.10 1.87-0.73-0.86       35.21 2.25       35.92-0.95  -3.20
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.73  2.26                   2.24  1.94 1.16  2.38  2.33 1.02   0.88
     10         2.45                         2.14 1.05        2.25 1.06   1.01
     38         3.03                         2.71 0.83        2.54 0.94   1.13
      9         2.79                         2.46 0.91        2.36 1.01   1.10
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.92(F  7 - 36.37)(1.02) + 34.97      0.92(F 10 - 42.35)(1.06) + 34.97

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7  10   9  38    0.753 0.746 0.724 0.721
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.6 40.2 43.6 41.8 41.4 41.1 41.3 45.2 43.8 41.7 39.0 42.5 41.3 39.8 43.3
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
S-  7 -1.2 -1.8 -1.6 -1.3 -1.2 -1.5 -0.9 -1.3 -2.1 -1.0 -1.1 -0.6 -1.3 -1.5 -1.2
S- 10 -5.7 -7.4 -6.8 -7.8 -4.9 -6.5 -6.7 -7.1 -7.4 -7.5 -7.2 -7.8 -7.2 -6.6 -6.1
S-  9 -0.3 -1.2  0.0 -2.3 -0.5 -0.9 -0.8 -1.0 -1.4 -1.5 -0.9 -1.1 -0.9  0.0 -0.1
S- 38 -2.9 -3.8 -2.3 -5.2 -4.1 -2.8 -3.5 -3.2 -4.1 -4.5 -3.0 -3.1 -3.8 -1.8 -2.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  0.75 1.83 2.00 1.68-1.10-1.24 44.71 42.80 1.91 41.83 43.14-1.31  -3.22
     10 -4.79-3.63-3.67-3.92-6.32-7.11       48.40-3.68       48.67-6.84  -3.16
      9  1.27 2.71 2.12 2.25-0.51-0.84       42.19 2.52       42.70-0.87  -3.39
     38 -1.36 0.08-0.65-0.41-3.13-3.25       44.93-0.22       45.19-3.36  -3.15
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.35  1.89                   1.96  1.67 1.18  1.56  1.66 0.94   0.80
     10         1.97                         1.95 1.01        1.80 0.87   0.87
      9         2.04                         2.10 0.93        1.69 0.93   0.99
     38         2.21                         2.29 0.86        1.81 0.86   1.01
Suggested regression eqns from two most closely related CDs (  7 and  10): 
          0.87(F  7 - 43.14)(0.94) + 41.83      0.86(F 10 - 48.67)(0.87) + 41.83

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  10  38  13    0.725 0.721 0.719 0.699
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 50.2 47.8 53.0 51.9 51.4 50.3 50.0 52.0 54.3 48.8 49.8 50.9 51.1 48.9 49.4
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0
S-  9  0.4 -0.5 -0.7 -0.8 -0.6 -0.7  0.0 -0.2 -0.8 -1.2  0.0  0.4 -0.5 -0.3  0.6
S- 10 -5.3 -6.5 -6.2 -5.8 -4.6 -5.4 -5.3 -6.0 -5.6 -6.4 -5.8 -6.3 -6.2 -6.0 -5.6
S- 38 -1.9 -2.6 -3.5 -3.5 -4.1 -2.9 -3.0 -2.3 -3.7 -4.0 -2.0 -1.8 -3.2 -2.7 -1.8
S- 13 -7.9-10.2 -8.9 -9.2 -8.0 -8.7 -8.6 -9.0 -8.5 -9.2 -8.1 -9.5-10.3 -9.7 -9.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.59 2.78 2.47 2.54-0.12-0.26 53.91 51.18 2.73 50.64 50.97-0.33  -3.06
     10 -3.80-3.00-2.52-2.80-5.35-6.00       56.76-2.85       56.44-5.80  -2.95
     38 -1.12 0.00-0.40-0.12-2.80-2.76       54.02-0.11       53.51-2.88  -2.77
     13 -7.19-6.34-6.22-6.10-8.64-9.27       60.19-6.28       59.67-9.03  -2.75
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.15  1.68                   1.62  1.70 0.95  1.65  1.83 0.90   0.95
     10         1.52                         1.54 1.05        1.62 1.02   0.97
     38         1.82                         1.74 0.93        2.05 0.80   0.87
     13         1.53                         1.59 1.02        1.57 1.05   1.04
Suggested regression eqns from two most closely related CDs (  9 and  10): 
          0.85(F  9 - 50.97)(0.90) + 50.64      0.85(F 10 - 56.44)(1.02) + 50.64

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  11   9  13    0.766 0.757 0.752 0.744
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 59.0 59.9 61.2 61.5 61.2 59.8 60.1 60.3 63.8 57.6 60.6 62.0 59.7 60.8 57.7
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
S- 38 -1.3 -2.0 -2.6 -3.2 -3.1 -2.3 -0.7 -1.4 -3.0 -2.9 -1.1 -0.9 -2.8 -1.6 -0.8
S- 11 -1.0 -1.6 -1.9 -2.8 -2.1 -1.6 -0.4 -1.8 -1.3 -2.6 -1.3 -0.7 -2.6 -1.7 -0.9
S-  9  1.0  0.3  0.0 -0.3  0.1  0.5  1.6  0.9  0.0 -0.4  0.6  1.4  0.0  0.5  1.5
S- 13 -6.5 -6.8 -7.8 -8.5 -6.9 -6.8 -6.5 -7.6 -6.2 -7.6 -6.9 -6.3 -8.4 -7.2 -6.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -0.70 0.02 0.04-0.06-1.97-1.86 63.58 63.55 0.03 60.34 62.31-1.98  -2.01
     11 -0.39 0.32 0.31 0.34-1.71-1.59       63.26 0.32       61.96-1.63  -1.94
      9  2.05 2.97 2.95 2.71 0.65 0.53       60.56 3.02       59.81 0.53  -2.49
     13 -5.74-5.26-4.62-5.04-7.18-6.97       68.64-5.06       67.41-7.07  -2.01
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.90  1.68                   1.33  1.64 0.81  1.54  1.97 0.78   0.96
     11         1.51                         1.45 0.92        1.64 0.94   1.02
      9         1.51                         1.56 0.85        1.75 0.88   1.03
     13         1.50                         1.36 0.98        1.66 0.93   0.94
Suggested regression eqns from two most closely related CDs ( 38 and  11): 
          0.88(F 38 - 62.31)(0.78) + 60.34      0.87(F 11 - 61.96)(0.94) + 60.34

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38   6   8    0.783 0.776 0.766 0.760
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 67.4 67.6 67.3 69.0 70.3 68.6 68.3 68.1 72.4 65.4 69.8 68.8 68.4 67.4 66.4
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd  6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7
cd  8 63.7 62.7 63.3 65.5 66.8 65.6 64.3 63.5 68.5 62.7 65.7 64.8 65.5 64.4 63.0
S-  9  1.3  1.4  0.7  0.5  0.6  1.4  1.9  1.7  2.0  0.3  1.6  2.2  1.2  0.9  1.9
S- 38 -1.7 -0.9 -1.9 -2.8 -2.0 -1.4  0.2 -0.6 -0.6 -1.9 -0.5 -0.2 -1.3 -2.0 -0.7
S-  6  0.7  1.9  1.2  0.5  0.4  0.2  2.2  2.6  1.1  0.5  2.3  2.3  1.0  1.3  1.7
S-  8  3.8  4.9  4.0  3.5  3.5  2.9  4.0  4.6  4.0  2.7  4.1  4.0  2.9  3.0  3.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.37 3.05 3.36 2.60 1.12 1.44 70.54 67.31 3.23 68.35 67.04 1.31  -1.91
     38 -0.38-0.06 0.68-0.19-1.51-1.02       70.33 0.20       69.57-1.22  -1.42
      6  2.27 3.04 3.23 2.27 1.13 1.45       67.47 3.06       67.03 1.32  -1.74
      8  4.74 5.54 5.71 4.83 3.80 3.45       64.93 5.60       64.67 3.69  -1.91
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.69  1.42                   1.25  1.45 0.86  1.62  1.53 1.06   1.23
     38         1.56                         1.61 0.78        1.65 0.98   1.26
      6         1.51                         1.55 0.81        1.77 0.92   1.13
      8         1.35                         1.36 0.92        1.57 1.03   1.12
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.89(F  9 - 67.04)(1.06) + 68.35      0.88(F 38 - 69.57)(0.98) + 68.35

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   6   8   9    0.753 0.748 0.747 0.716
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.9 72.1 70.3 71.8 73.7 73.6 72.0 71.8 74.7 69.3 73.8 73.4 73.9 71.5 71.4
cd  7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
cd  8 69.2 67.7 66.3 67.6 69.8 70.3 68.5 67.9 70.6 66.0 69.6 69.1 71.1 68.8 67.8
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
S-  7 -1.4 -0.9 -1.7 -1.7 -0.9 -1.3 -1.2 -1.3  0.0 -1.4 -0.5 -0.6 -0.6 -0.8 -0.7
S-  6  0.1  1.4  1.4  0.9  1.3  0.7  1.3  2.0  1.7  1.3  1.9  2.4  0.5  1.1  1.9
S-  8  3.7  4.4  4.0  4.2  4.0  3.4  3.5  3.9  4.0  3.3  4.2  4.3  2.8  2.7  3.6
S-  9  1.5  1.7  1.2  0.7  1.0  1.6  1.2  1.5  2.7  0.8  1.6  2.2  1.5  1.8  2.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -0.12 0.86 0.73-0.31-1.40-0.65 73.98 73.07 0.91 72.42 73.42-1.00  -1.91
      6  2.16 2.81 3.15 2.07 1.02 1.54       70.99 2.99       71.09 1.33  -1.66
      8  4.62 5.41 5.45 4.55 3.80 3.56       68.42 5.56       68.69 3.73  -1.83
      9  2.50 3.27 3.58 2.44 1.18 1.83       70.51 3.47       70.87 1.55  -1.92
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.54  1.05                   1.00  0.92 1.08  1.43  1.18 1.20   1.11
      6         1.34                         1.30 0.76        1.57 0.91   1.19
      8         1.27                         1.27 0.78        1.43 0.99   1.27
      9         1.17                         1.06 0.94        1.25 1.14   1.22
Suggested regression eqns from two most closely related CDs (  7 and   6): 
          0.87(F  7 - 73.42)(1.20) + 72.42      0.87(F  6 - 71.09)(0.91) + 72.42

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   6   8   9    0.801 0.788 0.783 0.778
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.8 69.3 69.7 70.5 71.7 71.5 69.9 70.0 72.7 68.9 73.0 70.3 71.9 69.4 70.0
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd  6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6
cd  8 67.9 65.2 66.5 66.5 67.5 68.4 66.8 66.2 68.1 65.3 68.0 66.2 68.7 66.8 65.9
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
S-  7 -1.6 -1.1 -1.9 -1.2 -1.1 -1.4 -1.4 -1.3  0.0 -1.2 -0.1 -0.9 -1.2 -1.2 -1.0
S-  6  0.1  1.7  0.9  0.5  1.2  0.4  1.0  1.4  2.3  1.6  3.0  2.0  1.3  1.1  2.4
S-  8  3.9  4.2  3.2  4.0  4.1  3.1  3.1  3.8  4.6  3.6  5.0  4.1  3.2  2.7  4.1
S-  9  1.6  1.9  1.2  0.7  0.8  0.8  0.9  0.9  2.5  0.6  1.8  1.9  1.5  1.8  2.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7 -0.19 0.87 0.57-0.35-1.44-0.78 72.77 71.85 0.92 70.72 71.81-1.10  -2.02
      6  2.28 2.96 3.17 2.35 0.87 1.95       69.66 3.11       69.33 1.39  -1.72
      8  4.73 5.60 5.46 4.78 3.64 3.90       67.05 5.73       66.93 3.78  -1.95
      9  2.40 3.28 3.42 2.26 1.10 1.76       69.36 3.41       69.30 1.41  -2.00
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.70  1.19                   1.35  1.31 1.03  1.23  1.04 1.18   1.15
      6         1.46                         1.52 0.89        1.34 0.92   1.03
      8         1.38                         1.68 0.80        1.08 1.14   1.42
      9         1.38                         1.36 1.00        1.21 1.02   1.02
Suggested regression eqns from two most closely related CDs (  7 and   6): 
          0.90(F  7 - 71.81)(1.18) + 70.72      0.89(F  6 - 69.33)(0.92) + 70.72

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    5   7   8   6    0.821 0.813 0.809 0.806
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.7 65.0 63.5 64.0 62.1 62.2 63.4 63.6 64.8 61.1 64.8 62.1 65.4 63.3 63.1
cd  5 60.8 60.4 59.9 59.0 57.5 58.1 59.1 59.6 60.5 56.9 58.5 58.3 61.1 59.8 58.0
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3
cd  6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1
S-  5  3.9  4.7  3.6  5.0  4.6  4.1  4.4  4.0  4.3  4.2  6.2  3.7  4.3  3.5  5.0
S-  7 -1.7 -1.2 -2.4 -1.1 -1.6 -1.4 -2.0 -2.0 -0.9 -1.4 -0.2 -1.2 -1.5 -1.3 -1.2
S-  8  3.5  3.8  2.6  3.9  3.7  3.4  3.2  3.0  3.7  3.4  4.9  3.6  2.9  2.7  3.7
S-  6  0.1  1.4  0.1  0.4  0.9  1.0  1.4  1.1  1.0  1.1  2.9  0.6  1.2  0.8  1.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      5  5.47 6.28 6.05 5.96 4.30 4.47 66.45 60.06 6.39 63.53 59.16 4.37  -2.02
      7 -0.24 0.96 0.60-0.28-1.63-1.10       65.38 1.07       64.95-1.41  -2.48
      8  4.71 5.76 5.48 4.94 3.44 3.57       60.57 5.88       60.06 3.47  -2.41
      6  2.22 3.11 3.05 2.55 0.77 1.36       63.27 3.18       62.48 1.06  -2.13
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      5   1.95  1.59                   1.41  1.54 0.92  1.22  1.21 1.01   1.10
      7         1.41                         1.37 1.03        1.22 1.00   0.97
      8         1.57                         1.59 0.89        1.25 0.97   1.09
      6         1.60                         1.42 0.99        1.29 0.95   0.95
Suggested regression eqns from two most closely related CDs (  5 and   7): 
          0.91(F  5 - 59.16)(1.01) + 63.53      0.90(F  7 - 64.95)(1.00) + 63.53

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    5   8   7   6    0.837 0.824 0.786 0.781
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 53.9 54.3 56.5 54.3 53.0 52.2 54.0 55.3 54.4 53.1 54.4 54.4 53.1 52.5 52.9
cd  5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd  6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3
S-  5  3.2  4.3  4.8  4.9  4.2  4.0  4.7  4.0  4.5  4.7  6.2  3.5  4.4  4.3  4.5
S-  8  2.7  3.5  3.3  3.7  3.4  3.6  3.5  2.8  3.8  3.6  4.5  3.3  3.2  3.0  3.4
S-  7 -2.5 -1.8 -2.1 -1.5 -1.7 -1.2 -1.8 -1.9 -1.2 -1.1 -0.7 -1.7 -2.1 -1.5 -1.8
S-  6 -0.2  1.2  0.7  0.3  0.5  1.5  1.9  1.0  1.6  1.3  2.8  0.4  2.1  1.8  1.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      5  5.49 6.17 5.85 6.18 4.40 4.59 56.90 50.65 6.25 53.90 49.48 4.41  -1.84
      8  4.65 5.68 5.22 5.02 3.45 3.54       51.17 5.73       50.48 3.42  -2.31
      7 -0.30 0.84 0.52-0.10-1.65-1.43       55.94 0.96       55.53-1.63  -2.59
      6  2.51 3.56 3.12 2.96 0.98 1.66       53.40 3.50       52.66 1.23  -2.27
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      5   1.89  1.65                   1.12  1.17 0.96  1.09  1.17 0.93   0.97
      8         1.60                         1.18 0.95        1.16 0.93   0.99
      7         1.45                         1.11 1.01        1.28 0.85   0.84
      6         1.73                         1.18 0.95        1.48 0.73   0.77
Suggested regression eqns from two most closely related CDs (  5 and   8): 
          0.92(F  5 - 49.48)(0.93) + 53.90      0.91(F  8 - 50.48)(0.93) + 53.90

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    5   8  23   6    0.856 0.845 0.829 0.823
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 41.8 47.2 45.2 43.6 43.5 42.5 39.4 46.4 44.9 42.6 42.9 45.8 42.1 43.0 43.4
cd  5 37.5 42.1 38.9 39.3 39.3 37.6 34.4 42.2 40.1 38.3 37.8 42.1 37.0 39.0 38.9
cd  8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2
cd 23 37.3 42.8 38.6 39.8 40.2 38.0 35.3 41.9 40.6 39.9 39.0 43.6 37.3 38.5 39.4
cd  6 40.4 45.2 42.3 42.5 42.5 39.9 37.1 45.0 42.9 41.9 41.5 45.3 39.1 41.6 41.7
S-  5  4.3  5.0  6.3  4.3  4.1  4.8  5.0  4.3  4.9  4.3  5.1  3.7  5.0  4.0  4.5
S-  8  2.9  3.6  4.4  3.2  3.2  3.8  3.6  2.6  3.5  3.2  3.6  3.1  3.7  2.6  3.1
S- 23  4.5  4.4  6.6  3.7  3.2  4.5  4.1  4.5  4.3  2.7  3.9  2.2  4.8  4.5  3.9
S-  6  1.4  1.9  2.8  1.1  1.0  2.6  2.2  1.4  2.0  0.8  1.4  0.5  2.9  1.4  1.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      5  5.82 6.57 6.13 6.79 4.72 4.51 46.09 39.50 6.59 43.61 38.96 4.65  -1.94
      8  4.72 5.90 5.18 5.37 3.46 3.28       40.25 5.84       40.25 3.36  -2.48
     23  5.19 6.05 5.41 6.08 4.23 3.77       40.16 5.93       39.48 4.13  -1.80
      6  3.01 4.19 3.51 3.75 1.65 1.53       41.97 4.13       41.94 1.67  -2.46
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      5   2.18  2.14                   1.43  1.58 0.91  1.94  2.03 0.95   1.05
      8         2.13                         1.66 0.86        2.02 0.96   1.11
     23         2.20                         1.61 0.89        2.12 0.92   1.03
      6         2.22                         1.61 0.89        2.18 0.89   0.99
Suggested regression eqns from two most closely related CDs (  5 and   8): 
          0.93(F  5 - 38.96)(0.95) + 43.61      0.92(F  8 - 40.25)(0.96) + 43.61

Station#1883  WINCHESTER/7 SE     , va  4918603    lat/lon 78.17   39.18    17M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  13   7  10    0.857 0.854 0.850 0.850
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 32.1 36.2 37.2 34.7 35.5 37.7 34.0 38.2 37.2 37.4 33.0 40.1 32.9 35.6 36.0
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5
S-  9 -1.1  0.4  0.5 -1.2 -1.0 -0.4 -0.4 -1.4  0.0 -0.6 -0.6  0.2  0.3  0.5 -1.4
S- 13-11.1 -8.9 -9.4-10.7 -8.9 -8.7-10.9 -9.8 -9.3 -8.7-10.2 -7.7 -8.9 -9.0 -8.9
S-  7 -2.9 -1.6 -1.1 -2.2 -1.5 -1.2 -1.9 -2.2 -1.9 -1.6 -1.9 -1.8 -0.9 -1.4 -4.0
S- 10 -8.0 -6.4 -7.1 -7.8 -6.5 -5.8 -7.8 -7.8 -7.4 -6.8 -8.1 -6.3 -6.3 -6.2 -7.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  1.26 2.61 2.04 1.82-0.41-0.22 37.98 35.43 2.55 35.84 36.24-0.41  -2.95
     13 -8.07-7.13-7.44-7.62-9.50-8.94       45.11-7.14       45.23-9.39  -2.25
      7 -0.26 1.05 0.62 0.21-1.76-1.94       36.91 1.07       37.72-1.88  -2.95
     10 -5.45-4.08-4.68-5.11-6.89-6.95       42.12-4.14       42.90-7.06  -2.91
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.59  2.64                   1.92  2.20 0.88  2.13  2.10 1.01   1.16
     13         2.24                         1.95 0.99        1.65 1.29   1.31
      7         2.43                         1.96 0.98        2.15 0.99   1.01
     10         2.36                         1.90 1.01        1.95 1.09   1.08
Suggested regression eqns from two most closely related CDs (  9 and  13): 
          0.93(F  9 - 36.24)(1.01) + 35.84      0.92(F 13 - 45.23)(1.29) + 35.84

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 36.98 39.70 45.49 53.61 62.42 69.49 72.81 71.89 66.55 56.18 46.00 39.46
1952 38.98 40.83 45.88 53.54 64.33 71.96 75.67 72.76 64.69 55.77 46.01 41.42
1953 39.59 42.62 46.85 55.67 64.68 72.76 75.05 73.29 67.07 57.26 47.85 39.69
1954 38.43 40.21 48.50 54.59 64.09 69.77 74.25 73.76 68.16 58.17 46.96 38.32
1955 36.45 39.94 48.17 57.20 63.76 71.01 74.58 74.57 67.14 56.42 45.36 37.75
1956 36.82 40.12 46.15 53.27 62.42 69.66 73.16 70.99 65.15 55.92 49.31 41.04
1957 39.22 38.93 47.14 55.14 64.55 70.10 72.57 71.34 64.49 56.25 46.87 39.72
1958 33.86 33.36 40.85 51.60 61.19 67.87 70.93 70.43 63.59 55.76 43.92 36.25
1959 32.73 36.68 44.59 53.58 62.85 68.99 72.64 71.85 66.15 55.08 45.06 37.72
1960 34.47 32.06 38.92 47.56 60.04 64.84 69.50 68.34 63.11 55.02 43.75 35.19
1961 31.69 37.48 44.63 51.76 59.35 67.52 72.29 72.79 67.14 58.55 46.94 38.90
1962 34.77 36.32 42.92 52.99 62.83 68.88 70.92 68.86 64.42 54.61 43.65 34.53
1963 30.10 35.68 43.98 54.93 62.69 68.45 72.06 70.12 65.54 57.26 45.41 36.75
1964 31.70 37.03 43.76 54.40 63.96 71.38 74.23 72.09 64.17 55.65 46.34 39.51
1965 35.60 36.61 44.04 54.46 63.54 70.12 72.03 72.40 65.85 57.10 47.36 39.27
1966 34.86 36.81 43.32 52.80 60.99 69.94 73.74 71.58 63.93 54.91 45.16 40.33
1967 35.69 39.02 44.86 52.84 61.68 67.10 71.83 69.13 62.86 52.92 44.53 35.47
1968 32.34 36.04 45.62 54.79 62.42 68.63 73.78 72.38 66.57 57.35 46.28 37.56
1969 33.35 35.90 44.38 54.24 64.90 71.54 73.91 71.71 64.58 54.97 43.84 34.60
1970 31.97 34.40 43.71 53.94 64.37 70.81 73.26 73.26 67.70 58.53 47.21 37.50
1971 34.31 35.91 43.99 52.05 62.28 68.93 72.46 71.37 67.21 58.66 49.97 42.10
1972 38.33 38.63 43.95 53.02 60.81 67.78 71.31 71.63 64.58 54.89 46.18 40.36
1973 37.75 40.55 46.47 54.82 62.37 69.51 74.22 73.08 67.52 58.57 47.83 42.28
1974 38.55 41.91 46.62 55.33 62.29 68.31 71.84 71.12 64.42 55.52 46.49 40.71
1975 37.85 39.22 43.49 52.76 62.45 70.41 73.62 71.31 66.55 58.12 49.00 39.67
1976 37.78 41.87 50.23 55.89 63.62 69.16 72.34 70.27 62.84 52.56 41.69 31.96
1977 30.64 36.64 48.79 58.46 64.93 72.05 75.53 75.59 66.95 57.05 45.27 35.98
1978 28.72 30.89 40.42 52.28 62.64 69.24 73.94 73.06 66.61 57.16 46.94 38.86
1979 31.84 34.58 42.30 54.49 61.90 68.49 72.00 71.34 65.23 57.32 48.00 40.38
1980 34.47 35.53 42.88 53.80 62.70 70.03 73.83 74.36 67.17 56.45 45.12 36.16
1981 34.12 36.10 46.07 53.83 64.16 69.57 72.72 70.69 63.67 55.32 44.28 35.35
1982 32.26 36.23 44.67 54.53 62.76 70.44 71.90 70.85 64.77 57.30 49.21 41.40
1983 37.07 38.14 43.95 52.38 60.51 68.48 73.69 72.64 66.67 56.68 45.15 35.63
1984 33.73 36.26 43.97 51.03 62.24 69.41 73.61 70.96 67.30 57.14 50.46 39.68
1985 37.34 37.81 47.00 56.06 63.79 69.59 72.47 71.91 66.13 58.58 46.88 38.22
1986 32.56 36.25 43.76 53.56 62.72 69.78 71.89 70.50 63.98 55.02 45.28 37.16
1987 34.86 37.71 44.72 54.36 63.76 72.22 75.88 74.13 65.22 55.40 45.83 38.29
1988 34.81 36.65 44.84 53.89 62.30 70.09 74.71 73.06 63.86 53.83 44.08 40.24
1989 36.92 39.69 44.33 52.14 61.63 69.17 73.03 71.07 64.87 55.60 41.36 35.98
1990 35.35 43.55 48.07 54.04 61.81 68.96 72.63 71.32 65.68 58.05 49.48 41.45
1991 38.78 40.90 48.28 57.50 65.62 72.39 74.52 72.98 66.22 55.63 46.84 40.52
1992 39.61 41.25 46.96 53.72 61.72 68.79 71.75 70.85 63.52 55.39 45.33 40.01
1993 36.44 37.94 43.01 52.50 62.58 70.17 73.61 71.86 64.64 55.28 45.11 35.29
1994 31.18 33.47 43.93 51.81 62.25 68.46 72.97 70.19 62.46 55.29 46.73 40.94
1995 34.66 37.10 42.50 52.43 60.90 69.27 74.29 72.03 65.52 53.56 42.69 33.61
1996 31.28 33.04 40.78 49.86 61.56 67.97 71.89 69.77 63.55 52.78 43.35 36.23
1997 36.00 38.54 43.90 49.80 57.71 66.30 71.34 70.49 63.97 53.94 44.51 37.14

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9   7  38  10    0.928 0.921 0.918 0.911
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 37.1 33.7 37.3 32.6 34.9 34.8 36.9 35.3 38.8 39.6 36.4 31.2 34.7 31.3 36.0
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd  7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7
cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3
cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8
S-  9  1.9  2.4  4.5  1.1  2.5  2.7  2.4  1.6  2.5  3.9  2.5  0.9  0.5  0.7  0.6
S-  7  0.9  1.0  2.5  0.2  1.7  2.0  1.9  0.8  1.4  3.2  2.1  0.8 -1.1 -0.1 -0.7
S- 38 -1.0  1.3  3.7 -0.9 -0.2  0.9  0.3 -0.5  1.1  1.4  0.9 -0.9 -1.5 -1.2 -1.3
S- 10 -3.6 -4.8 -3.0 -6.4 -3.5 -3.3 -3.8 -5.6 -4.7 -3.1 -3.9 -6.4 -6.8 -5.9 -5.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.65 2.98 2.82 2.97 2.51 1.64 35.43 32.62 2.81 35.37 33.35 2.02  -0.78
      7  1.65 2.00 1.84 1.89 1.47 0.79       33.45 1.97       34.28 1.10  -0.88
     38  0.64 0.68 0.77 1.21 0.52-0.22       34.82 0.61       35.24 0.14  -0.47
     10 -4.24-3.62-4.23-4.28-4.14-5.23       39.40-3.97       40.07-4.70  -0.73
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.77  2.89                   2.90  2.99 0.97  2.40  1.85 1.30   1.34
      7         2.52                         2.68 1.08        2.00 1.20   1.11
     38         3.07                         3.13 0.93        2.04 1.17   1.27
     10         2.48                         2.49 1.16        1.82 1.32   1.13
Suggested regression eqns from two most closely related CDs (  9 and   7): 
          0.96(F  9 - 33.35)(1.30) + 35.37      0.96(F  7 - 34.28)(1.20) + 35.37

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38  10   7    0.919 0.916 0.908 0.904
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 38.1 36.3 37.8 36.3 37.7 36.7 39.7 43.5 40.9 41.3 37.9 33.5 37.1 33.0 38.5
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2
cd  7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4
S-  9  2.1  2.4  4.4  0.4  2.4  2.7  1.5  1.5  2.9  4.2  2.7  0.3  1.1  0.2  0.7
S- 38 -0.7  0.4  3.0 -2.4 -1.1  0.8 -0.7 -0.7  0.9  1.6  0.8 -1.5 -1.2 -1.7 -1.3
S- 10 -3.7 -4.4 -3.1 -6.3 -2.5 -3.2 -3.8 -4.7 -4.1 -2.4 -3.6 -7.3 -5.8 -6.4 -5.7
S-  7  1.1  2.0  2.2  0.0  2.1  2.0  2.3  1.5  2.0  4.2  3.0  1.2 -0.4 -0.6  0.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.61 2.81 2.80 3.07 2.38 1.73 37.84 35.21 2.63 37.89 35.92 1.97  -0.66
     38  0.33 0.28 0.56 1.00-0.04-0.34       37.64 0.20       38.13-0.25  -0.45
     10 -4.03-3.88-3.84-3.84-3.85-5.04       41.89-4.05       42.35-4.46  -0.41
      7  1.99 1.98 2.29 2.32 1.79 1.35       35.81 2.03       36.37 1.51  -0.52
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.76  2.79                   2.78  2.46 1.13  2.67  2.36 1.13   1.00
     38         3.03                         2.71 1.03        2.54 1.05   1.02
     10         2.45                         2.14 1.30        2.25 1.19   0.91
      7         2.26                         1.94 1.43        2.33 1.14   0.80
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.96(F  9 - 35.92)(1.13) + 37.89      0.96(F 38 - 38.13)(1.05) + 37.89

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38  10   7    0.877 0.862 0.852 0.843
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.0 44.0 47.0 43.8 44.7 44.8 44.3 48.1 48.3 47.0 43.0 43.9 42.5 40.8 43.9
cd  9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4
cd  7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5
S-  9  2.1  2.5  3.3 -0.4  2.8  2.9  2.2  1.9  3.1  3.8  3.1  0.4  0.3  0.9  0.5
S- 38 -0.5  0.0  1.1 -3.2 -0.8  1.0 -0.5 -0.2  0.3  0.8  1.0 -1.6 -2.6 -0.8 -1.9
S- 10 -3.4 -3.6 -3.4 -5.8 -1.6 -2.7 -3.7 -4.2 -3.0 -2.2 -3.2 -6.3 -6.1 -5.6 -5.5
S-  7  1.1  2.0  1.8  0.6  2.1  2.2  2.1  1.6  2.3  4.3  2.9  0.9 -0.1 -0.5 -0.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.61 2.72 2.73 3.16 2.42 1.73 44.79 42.19 2.60 44.67 42.70 1.97  -0.63
     38 -0.03 0.09-0.04 0.50-0.20-0.68       44.93-0.14       45.19-0.53  -0.39
     10 -3.46-3.61-3.06-3.01-3.39-4.53       48.40-3.60       48.67-4.01  -0.40
      7  2.08 1.84 2.61 2.59 1.83 1.34       42.80 1.99       43.14 1.53  -0.46
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.28  2.04                   2.51  2.10 1.19  2.02  1.69 1.19   1.00
     38         2.21                         2.29 1.09        1.81 1.11   1.02
     10         1.97                         1.95 1.28        1.80 1.12   0.87
      7         1.89                         1.67 1.50        1.66 1.21   0.81
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.94(F  9 - 42.70)(1.19) + 44.67      0.93(F 38 - 45.19)(1.11) + 44.67

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38   6  24    0.890 0.867 0.849 0.828
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 52.4 51.0 56.1 53.6 54.4 53.9 52.1 54.0 57.5 53.7 52.5 51.8 52.4 49.9 49.8
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
cd  6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3
cd 24 48.6 46.3 54.7 53.7 54.5 51.7 49.6 51.0 55.6 50.6 49.3 50.5 50.7 47.5 48.5
S-  9  2.6  2.8  2.4  0.9  2.4  2.9  2.1  1.9  2.4  3.7  2.7  1.3  0.8  0.7  1.0
S- 38  0.3  0.6 -0.4 -1.8 -1.1  0.7 -0.8 -0.2 -0.5  0.9  0.7 -0.9 -1.9 -1.7 -1.4
S-  6  4.0  5.9  3.3  1.6  2.4  4.5  4.2  3.8  3.0  4.9  4.2  3.4  3.2  3.2  2.5
S- 24  3.8  4.7  1.3 -0.1 -0.1  2.2  2.6  3.0  1.9  3.1  3.2  1.4  1.8  2.4  1.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.53 2.44 2.64 3.12 2.44 1.80 53.62 51.18 2.44 53.01 50.97 2.04  -0.40
     38 -0.18-0.34-0.23 0.46-0.24-0.70       54.02-0.40       53.51-0.51  -0.10
      6  4.25 4.19 4.51 4.92 3.89 3.49       49.44 4.18       49.40 3.61  -0.57
     24  2.86 3.21 3.00 3.34 2.39 2.13       50.60 3.02       50.85 2.15  -0.86
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.95  1.68                   2.13  1.70 1.25  2.02  1.83 1.10   0.88
     38         1.82                         1.74 1.22        2.05 0.98   0.80
      6         1.97                         1.60 1.33        2.40 0.84   0.63
     24         2.18                         1.79 1.19        2.65 0.76   0.64
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.94(F  9 - 50.97)(1.10) + 53.01      0.93(F 38 - 53.51)(0.98) + 53.01

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38  39   6    0.844 0.837 0.805 0.796
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 60.5 62.2 63.8 62.7 63.8 62.3 61.6 61.8 65.6 61.7 62.6 62.3 60.9 61.6 57.7
cd  9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
cd 39 61.5 64.3 65.9 67.0 66.9 64.9 63.1 63.1 68.5 62.9 63.7 65.0 64.8 64.4 60.7
cd  6 57.4 58.6 60.6 61.4 61.6 59.5 57.4 58.3 64.4 57.5 59.0 59.5 58.8 58.9 56.2
S-  9  2.5  2.7  2.6  1.0  2.7  3.0  3.2  2.5  1.9  3.8  2.6  1.6  1.1  1.3  1.6
S- 38  0.3  0.4 -0.1 -1.9 -0.6  0.2  0.8  0.2 -1.1  1.2  0.9 -0.6 -1.6 -0.9 -0.7
S- 39 -1.0 -2.0 -2.1 -4.3 -3.2 -2.6 -1.5 -1.3 -2.9 -1.2 -1.1 -2.7 -3.9 -2.9 -3.0
S-  6  3.1  3.6  3.2  1.3  2.2  2.8  4.3  3.5  1.2  4.2  3.6  2.7  2.1  2.7  1.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.58 2.16 2.67 3.23 2.66 1.98 62.85 60.56 2.28 62.07 59.81 2.27  -0.02
     38 -0.17-0.78-0.24 0.45 0.04-0.41       63.55-0.70       62.31-0.24   0.46
     39 -2.20-2.34-2.35-1.81-2.06-2.53       65.33-2.49       64.46-2.38   0.10
      6  3.17 2.85 3.30 3.74 3.23 2.58       59.97 2.88       59.26 2.81  -0.07
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.52  1.51                   1.54  1.56 0.99  1.69  1.75 0.96   0.97
     38         1.68                         1.64 0.94        1.97 0.85   0.91
     39         1.70                         1.66 0.93        2.01 0.84   0.91
      6         1.64                         1.65 0.94        2.00 0.84   0.90
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.92(F  9 - 59.81)(0.96) + 62.07      0.92(F 38 - 62.31)(0.85) + 62.07

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  39  24   6    0.817 0.800 0.798 0.791
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 68.5 69.4 69.6 69.8 72.2 70.1 69.2 69.0 72.4 68.8 70.2 68.5 69.3 68.0 66.3
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5
cd 24 69.4 68.3 68.6 70.9 72.5 71.3 67.8 67.5 72.9 66.8 69.5 68.6 69.2 67.8 66.8
cd  6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7
S-  9  2.3  3.3  3.0  1.3  2.6  2.9  2.8  2.6  2.0  3.7  1.9  1.8  2.1  1.4  1.8
S- 39 -2.9 -1.6 -2.1 -4.3 -2.4 -2.3 -0.9 -1.5 -2.5 -1.1 -2.6 -2.7 -2.5 -3.8 -3.2
S- 24 -0.9  1.1  1.0 -1.1 -0.3 -1.2  1.4  1.4 -0.6  2.0  0.7 -0.1  0.1  0.2 -0.5
S-  6  1.7  3.7  3.5  1.3  2.4  1.8  3.0  3.4  1.1  3.9  2.6  1.9  1.9  1.8  1.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.57 2.06 2.69 3.20 2.66 2.10 69.52 67.31 2.21 69.40 67.04 2.36   0.15
     39 -2.32-2.76-2.11-2.03-2.16-2.62       72.21-2.69       71.83-2.42   0.27
     24  0.31 0.02 0.42 0.44 0.39 0.26       69.60-0.08       69.19 0.21   0.29
      6  2.47 2.05 2.56 2.87 2.67 2.10       67.47 2.05       67.03 2.37   0.33
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.55  1.42                   1.89  1.45 1.30  1.46  1.53 0.96   0.74
     39         1.51                         1.60 1.18        1.61 0.91   0.78
     24         1.58                         1.62 1.17        1.87 0.78   0.67
      6         1.51                         1.55 1.22        1.77 0.83   0.68
Suggested regression eqns from two most closely related CDs (  9 and  39): 
          0.90(F  9 - 67.04)(0.96) + 69.40      0.89(F 39 - 71.83)(0.91) + 69.40

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  39   6  24    0.734 0.728 0.727 0.718
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 73.7 73.6 72.5 71.9 75.9 74.7 73.0 72.6 74.5 71.8 73.6 73.0 74.3 71.9 71.3
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 39 77.7 75.6 74.3 76.1 77.0 77.0 74.5 74.7 76.8 72.8 76.9 75.2 77.0 74.5 74.0
cd  6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5
cd 24 76.0 73.5 70.6 72.8 74.4 75.7 72.3 71.8 74.8 69.3 73.2 72.1 75.5 71.9 71.3
S-  9  2.3  3.1  3.3  0.9  3.2  2.6  2.2  2.3  2.6  3.2  1.5  1.7  1.9  2.1  2.2
S- 39 -4.0 -1.9 -1.9 -4.2 -1.1 -2.3 -1.5 -2.0 -2.3 -1.0 -3.3 -2.2 -2.8 -2.6 -2.7
S-  6  0.9  2.8  3.6  1.1  3.4  1.8  2.3  2.8  1.6  3.8  1.7  2.0  0.9  1.4  1.9
S- 24 -2.3  0.1  1.8 -0.9  1.4 -1.0  0.7  0.8 -0.2  2.4  0.4  0.9 -1.2 -0.1  0.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.60 2.10 2.87 3.18 2.56 2.17 72.85 70.51 2.34 73.22 70.87 2.35   0.01
     39 -2.33-3.07-1.79-2.05-2.37-2.41       75.64-2.79       75.60-2.38   0.41
      6  2.26 1.63 2.44 2.81 2.40 1.89       70.99 1.86       71.09 2.13   0.27
     24  0.21-0.50 0.53 0.50 0.24 0.32       73.12-0.27       73.02 0.20   0.47
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.34  1.17                   1.64  1.06 1.54  1.24  1.25 0.99   0.64
     39         1.46                         1.50 1.09        1.40 0.88   0.81
      6         1.34                         1.30 1.25        1.57 0.79   0.63
     24         1.56                         1.55 1.06        1.91 0.65   0.61
Suggested regression eqns from two most closely related CDs (  9 and  39): 
          0.86(F  9 - 70.87)(0.99) + 73.22      0.85(F 39 - 75.60)(0.88) + 73.22

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  39    0.772 0.764 0.759 0.736
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 72.6 71.0 71.9 70.5 74.1 73.1 71.1 71.3 73.0 70.8 71.9 70.2 72.0 69.8 70.5
cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5
cd  7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0
S- 10 -2.8 -1.6 -1.6 -4.3 -2.1 -1.6 -2.9 -3.0 -2.4 -3.0 -4.5 -3.4 -3.1 -3.4 -3.0
S-  7 -0.7  0.6  0.3 -1.2  1.3  0.1 -0.3  0.1  0.3  0.8 -1.2 -1.0 -1.1 -0.9 -0.5
S-  9  2.5  3.5  3.4  0.7  3.3  2.3  2.0  2.2  2.8  2.5  0.7  1.8  1.7  2.1  2.7
S- 39 -4.3 -1.5 -1.1 -4.6 -1.0 -2.1 -1.8 -2.2 -1.9 -1.0 -3.0 -1.9 -3.0 -2.5 -2.5

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.51-2.90-2.11-2.13-2.39-3.26 71.70 74.33-2.64 71.58 74.43-2.85  -0.21
      7 -0.02-0.30 0.00 0.49 0.05-0.51       71.85-0.15       71.81-0.23  -0.07
      9  2.57 2.11 2.85 3.10 2.59 2.04       69.36 2.34       69.30 2.28  -0.06
     39 -2.09-2.82-1.61-1.57-2.25-2.26       74.18-2.48       73.87-2.29   0.19
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.48  1.24                   1.68  1.12 1.50  1.18  1.08 1.09   0.73
      7         1.19                         1.31 1.27        1.04 1.13   0.89
      9         1.38                         1.36 1.24        1.21 0.98   0.79
     39         1.60                         1.40 1.20        1.45 0.82   0.68
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.88(F 10 - 74.43)(1.09) + 71.58      0.87(F  7 - 71.81)(1.13) + 71.58

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   10   7   9  13    0.832 0.817 0.799 0.784
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.7 67.3 66.1 64.0 65.2 63.9 64.9 65.7 66.2 63.5 64.6 62.5 65.5 63.5 64.0
cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1
cd  7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0
S- 10 -2.3 -2.0 -2.7 -4.6 -2.0 -2.3 -3.2 -2.9 -2.2 -2.6 -4.0 -3.9 -3.6 -3.8 -3.1
S-  7  0.3  1.0  0.2 -1.1  1.5  0.3 -0.5  0.1  0.5  1.0 -0.3 -0.8 -1.3 -1.1 -0.3
S-  9  3.0  3.0  2.4  0.7  3.3  2.5  2.3  2.5  2.8  2.5  1.4  1.2  1.4  1.5  2.8
S- 13 -4.0 -3.8 -4.2 -6.5 -3.7 -4.3 -4.4 -5.4 -3.4 -4.4 -5.9 -5.4 -5.1 -5.1 -5.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     10 -2.66-3.02-2.27-2.37-2.55-3.31 65.55 68.22-2.67 64.91 67.92-3.01  -0.34
      7  0.23-0.08 0.32 0.74 0.34-0.34       65.38 0.17       64.95-0.04  -0.21
      9  2.57 2.17 2.85 3.12 2.58 1.92       63.15 2.40       62.70 2.21  -0.19
     13 -4.44-5.08-3.99-3.92-4.42-4.91       70.25-4.70       69.62-4.72  -0.02
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     10   1.49  1.42                   1.43  1.31 1.09  1.31  1.07 1.23   1.13
      7         1.41                         1.37 1.04        1.22 1.07   1.03
      9         1.50                         1.33 1.07        1.10 1.20   1.11
     13         1.44                         1.41 1.02        1.10 1.19   1.17
Suggested regression eqns from two most closely related CDs ( 10 and   7): 
          0.91(F 10 - 67.92)(1.23) + 64.91      0.90(F  7 - 64.95)(1.07) + 64.91

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   8   6    0.852 0.846 0.835 0.825
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 56.7 57.1 58.6 55.0 55.4 53.8 55.6 58.0 55.6 55.4 55.3 55.3 53.6 52.8 53.9
cd  7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd  8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5
cd  6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3
S-  7  0.2  1.0  0.0 -0.7  0.7  0.4 -0.3  0.8  0.0  1.2  0.1 -0.8 -1.6 -1.2 -0.7
S-  9  3.0  3.2  1.1  0.2  2.7  2.8  2.2  2.9  2.2  2.4  1.6  1.1  1.6  1.7  2.5
S-  8  5.5  6.3  5.3  4.4  5.7  5.2  5.1  5.6  5.0  6.0  5.4  4.2  3.6  3.3  4.4
S-  6  2.5  4.0  2.8  1.0  2.9  3.1  3.5  3.8  2.8  3.6  3.7  1.3  2.6  2.0  2.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  0.42 0.22 0.57 1.00 0.45-0.42 56.33 55.94 0.39 55.48 55.53-0.05  -0.44
      9  2.61 2.56 2.81 3.14 2.47 1.85       53.73 2.60       53.41 2.06  -0.54
      8  5.36 5.07 5.27 6.13 5.56 4.55       51.17 5.16       50.48 5.00  -0.16
      6  3.22 2.95 3.16 4.07 3.08 2.66       53.40 2.93       52.66 2.81  -0.12
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   1.59  1.45                   1.10  1.11 0.99  1.57  1.28 1.23   1.24
      9         1.66                         0.90 1.22        1.63 0.96   0.79
      8         1.60                         1.18 0.93        1.16 1.35   1.45
      6         1.73                         1.18 0.93        1.48 1.06   1.13
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.92(F  7 - 55.53)(1.23) + 55.48      0.92(F  9 - 53.41)(0.96) + 55.48

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    7   9   6   8    0.916 0.908 0.902 0.900
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 45.2 50.5 46.9 45.3 45.8 44.1 41.4 49.5 46.8 45.3 45.1 46.7 42.7 43.3 44.5
cd  7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
cd  6 40.4 45.2 42.3 42.5 42.5 39.9 37.1 45.0 42.9 41.9 41.5 45.3 39.1 41.6 41.7
cd  8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2
S-  7  0.4  1.5  0.1 -0.6  0.8  0.6 -0.1  0.5  0.4  0.9  0.5 -1.0 -0.8 -1.3 -0.7
S-  9  3.0  2.8  1.0  0.8  2.3  2.9  2.0  2.8  2.4  2.5  2.2  0.4  1.6  0.7  2.2
S-  6  4.7  5.2  4.5  2.8  3.3  4.2  4.2  4.5  3.9  3.5  3.6  1.4  3.6  1.8  2.8
S-  8  6.3  6.9  6.1  4.9  5.6  5.4  5.6  5.6  5.4  5.9  5.8  4.1  4.4  3.0  4.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      7  0.69 0.77 0.95 1.20 0.50-0.29 46.05 45.16 0.89 45.54 45.46 0.08  -0.81
      9  2.60 2.86 2.76 3.07 2.33 1.73       43.22 2.84       43.56 1.98  -0.86
      6  4.08 4.13 3.99 4.96 4.02 2.94       41.97 4.08       41.94 3.60  -0.48
      8  5.79 5.84 5.66 6.58 5.82 4.69       40.25 5.80       40.25 5.29  -0.51
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      7   2.03  1.92                   1.54  1.48 1.04  2.29  1.99 1.15   1.11
      9         2.15                         1.54 1.00        2.26 1.02   1.02
      6         2.22                         1.61 0.96        2.18 1.05   1.10
      8         2.13                         1.66 0.93        2.02 1.13   1.23
Suggested regression eqns from two most closely related CDs (  7 and   9): 
          0.96(F  7 - 45.46)(1.15) + 45.54      0.95(F  9 - 43.56)(1.02) + 45.54

Station#1884  WOODSTOCK/2 NE      , va  4926303    lat/lon 78.50   38.87     9M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38   7   8    0.923 0.915 0.911 0.904
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 35.6 39.7 38.2 37.2 38.3 40.2 36.0 41.5 40.5 40.0 35.3 40.9 33.6 36.2 37.1
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4
cd  7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0
cd  8 29.0 32.1 32.1 31.5 32.4 34.1 30.3 35.2 33.7 34.1 29.2 36.2 28.5 32.0 35.1
S-  9  2.4  3.9  1.5  1.3  1.9  2.2  1.6  1.9  3.4  2.0  1.6  1.1  1.0  1.1 -0.2
S- 38  1.2  2.5  0.2 -0.5 -0.3 -0.4 -0.5  0.4  1.4  0.6  0.4 -0.6 -0.6 -0.8 -2.3
S-  7  0.6  1.9 -0.1  0.2  1.3  1.4  0.2  1.1  1.4  1.0  0.3 -0.9 -0.2 -0.8 -2.8
S-  8  6.7  7.6  6.1  5.7  5.9  6.2  5.7  6.3  6.8  5.9  6.1  4.7  5.1  4.2  2.1

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.56 3.01 2.77 3.05 2.21 1.43 38.37 35.43 2.94 38.03 36.24 1.78  -1.16
     38  0.69 0.87 0.90 1.40 0.27-0.27       37.37 0.99       37.97 0.05  -0.94
      7  1.04 1.45 1.36 1.44 0.86-0.30       36.91 1.46       37.72 0.31  -1.15
      8  6.40 6.70 6.43 7.22 6.24 4.98       31.71 6.66       32.36 5.66  -1.00
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.44  2.64                   1.94  2.20 0.88  2.31  2.10 1.10   1.24
     38         2.70                         2.22 0.87        2.24 1.03   1.18
      7         2.43                         1.96 0.99        2.15 1.07   1.09
      8         2.70                         2.15 0.90        2.31 1.00   1.11
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.96(F  9 - 36.24)(1.10) + 38.03      0.96(F 38 - 37.97)(1.03) + 38.03

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
      DJF   JFM   FMA   MAM   AMJ   MJJ   JJA   JAS   ASO   SON   OND   NDJ
1951 36.29 39.13 44.17 51.10 59.11 65.84 69.64 67.96 62.61 51.60 43.33 38.42
1952 39.19 40.83 45.06 52.19 62.35 69.27 72.05 68.73 60.95 52.34 43.45 39.59
1953 38.12 41.13 45.34 54.01 62.45 68.78 70.36 68.58 63.66 54.75 45.32 38.77
1954 37.86 40.30 47.36 52.30 60.37 65.45 70.17 69.77 63.85 54.09 42.96 35.14
1955 33.79 37.97 46.15 54.52 60.50 66.43 69.81 70.97 64.59 54.39 42.89 34.96
1956 34.23 38.15 44.26 51.58 59.34 66.34 68.93 67.40 62.46 53.49 47.95 40.89
1957 40.92 39.80 46.92 53.31 62.48 67.46 69.55 68.00 60.94 53.33 44.30 37.39
1958 32.45 32.69 40.49 50.51 60.09 66.89 69.72 68.56 61.60 53.93 43.10 36.38
1959 33.65 37.13 44.51 53.05 61.60 67.71 70.43 69.86 64.22 54.56 45.26 38.26
1960 34.98 32.10 38.89 46.94 60.19 65.11 70.03 69.32 64.36 55.11 43.15 34.46
1961 32.37 38.32 43.98 50.10 56.08 63.99 68.52 69.08 63.54 55.67 44.93 38.07
1962 35.72 37.76 43.21 51.86 60.70 67.36 68.66 67.48 63.10 54.01 43.00 34.56
1963 30.47 36.15 44.09 53.82 60.73 65.72 68.86 67.48 62.80 54.51 42.19 34.75
1964 30.63 36.28 43.27 53.13 61.68 67.17 69.78 67.97 60.97 53.12 45.12 40.01
1965 36.56 36.94 43.44 52.98 61.51 67.05 68.73 68.70 62.26 53.89 44.33 35.77
1966 32.27 34.65 42.77 51.44 59.04 66.44 69.31 67.63 60.61 52.15 42.97 37.58
1967 33.51 37.84 44.16 52.40 58.57 63.16 66.52 64.42 59.09 50.00 43.04 34.90
1968 31.55 33.68 41.76 51.03 58.38 64.40 68.84 67.46 61.80 52.29 42.17 34.45
1969 31.60 33.10 40.76 50.09 61.00 67.39 69.63 67.53 60.95 51.31 40.63 31.70
1970 30.07 33.76 42.97 52.32 61.59 67.79 70.10 70.15 65.24 56.70 46.59 38.59
1971 35.51 35.95 41.71 49.20 59.32 65.74 69.76 69.16 65.83 56.81 48.58 41.21
1972 38.28 38.19 42.57 51.31 58.03 64.34 67.97 69.07 63.16 53.85 45.80 39.58
1973 37.21 40.20 45.87 53.18 59.54 66.62 71.38 70.90 65.65 57.18 46.21 42.27
1974 39.64 43.99 46.37 53.95 59.37 65.47 68.32 67.74 61.31 52.43 43.15 38.73
1975 37.29 39.72 44.07 52.43 61.05 67.75 70.61 69.46 64.72 55.91 46.71 38.07
1976 36.88 40.96 48.18 53.61 59.88 65.47 68.27 66.55 60.19 50.19 40.16 30.20
1977 28.40 33.88 45.76 55.89 62.02 67.85 70.68 70.95 63.91 55.63 44.95 35.93
1978 29.35 31.54 41.13 51.71 60.88 66.68 71.08 71.01 64.68 56.33 45.90 38.15
1979 32.33 35.65 43.81 53.99 60.32 65.88 69.13 68.88 63.18 55.17 45.93 40.09
1980 34.73 35.97 41.65 51.68 60.11 66.87 70.80 71.14 63.94 53.89 43.49 35.90
1981 33.85 35.35 44.79 52.17 62.28 67.58 70.89 68.36 61.27 52.92 42.62 34.66
1982 32.84 37.56 44.93 53.36 60.51 67.82 69.65 68.21 62.40 54.60 47.46 39.68
1983 36.18 37.44 43.41 51.15 58.47 66.22 71.02 70.04 63.96 54.33 44.08 36.26
1984 34.69 37.66 43.99 50.21 59.50 66.13 70.20 67.64 64.87 55.44 49.31 37.75
1985 35.42 36.42 45.89 54.86 62.08 67.58 70.03 68.79 64.47 58.81 48.18 39.08
1986 34.38 38.38 46.36 53.90 62.53 68.86 71.73 70.60 64.55 57.10 47.40 39.14
1987 35.08 37.54 43.61 53.43 61.86 69.63 72.49 71.09 63.21 53.84 45.30 38.11
1988 34.87 36.65 44.78 52.54 60.05 66.78 71.52 70.66 62.44 53.01 43.14 39.67
1989 36.65 39.92 43.44 49.88 57.99 65.64 70.38 68.75 62.30 52.84 39.22 34.40
1990 33.74 41.35 45.21 51.82 58.93 66.27 69.89 69.06 63.03 54.48 46.10 39.26
1991 36.57 37.88 44.24 53.33 61.64 68.43 69.98 68.65 61.97 52.52 43.82 37.48
1992 36.45 37.34 42.44 48.12 55.73 62.93 66.88 67.16 59.85 51.89 41.35 37.09
1993 33.63 35.37 39.22 48.34 58.03 66.88 70.24 69.60 61.46 52.02 40.86 32.35
1994 30.01 33.25 42.61 48.84 58.27 64.21 69.04 66.54 60.00 52.83 45.44 39.39
1995 34.33 36.55 42.56 51.56 58.75 65.70 70.59 69.24 63.00 51.49 40.59 32.77
1996 30.94 33.19 39.56 48.61 58.79 65.98 69.06 67.26 61.10 50.54 42.51 35.80
1997 36.11 39.28 43.97 48.54 54.43 62.77 67.23 66.18 59.35 49.58 40.83 34.67

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 1 (DJF)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  13  11  56    0.921 0.921 0.918 0.907
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 36.2 34.7 35.4 34.4 35.1 34.9 36.7 33.7 36.6 36.5 33.6 30.0 34.3 30.9 36.1
cd  9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4
cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7
cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5
cd 56 45.8 43.4 45.6 45.2 44.6 44.3 47.5 47.0 47.9 48.0 45.8 44.0 46.4 43.8 47.4
S-  9  1.0  3.3  2.6  2.9  2.7  2.7  2.1  0.0  0.2  0.7 -0.3 -0.3  0.2  0.3  0.7
S- 13 -7.1 -7.1 -8.1 -8.2 -6.4 -6.0 -7.6-10.9 -9.3 -9.5 -9.3-11.1 -9.3 -9.9 -8.6
S- 11 -2.4 -0.8 -1.2 -1.5 -2.0 -0.9 -2.0 -4.4 -3.9 -3.8 -4.8 -5.3 -4.1 -4.2 -3.4
S- 56 -9.7 -8.8-10.2-10.8 -9.6 -9.4-10.9-13.3-11.3-11.6-12.2-14.0-12.0-12.8-11.3

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
DJF  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9  2.11 2.38 2.09 2.91 2.38 0.22 35.15 32.62 2.53 34.60 33.35 1.26  -1.27
     13 -8.09-7.78-8.39-7.60-7.58-9.58       42.99-7.84       43.16-8.56  -0.72
     11 -2.39-2.08-2.72-1.64-1.84-4.22       37.27-2.13       37.59-2.98  -0.86
     56 ***************-9.83**********       45.48*****       45.78*****  -0.85
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
DJF  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   2.80  2.89                   2.96  2.99 0.99  1.89  1.85 1.02   1.03
     13         2.54                         2.78 1.06        1.66 1.14   1.07
     11         2.77                         3.08 0.96        1.75 1.08   1.12
     56         2.68                         3.06 0.97        1.49 1.27   1.31
Suggested regression eqns from two most closely related CDs (  9 and  13): 
          0.96(F  9 - 33.35)(1.02) + 34.60      0.96(F 13 - 43.16)(1.14) + 34.60

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 2 (JFM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  50  38   9    0.920 0.917 0.914 0.912
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 37.4 37.7 36.4 38.4 37.5 36.7 39.9 41.3 37.9 37.3 35.4 33.3 36.5 33.2 39.3
cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3
cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2
cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9
cd  9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9
S- 11 -2.2 -1.2 -1.2 -2.0 -2.3 -1.1 -3.2 -4.2 -4.5 -4.4 -4.6 -5.4 -4.2 -4.2 -4.0
S- 50 -4.4 -3.0 -2.8 -5.3 -5.7 -3.7 -4.9 -6.6 -6.5 -6.8 -6.3 -7.7 -6.9 -6.6 -6.0
S- 38 -1.4  1.8  1.6 -0.3 -1.2  0.8 -0.5 -2.9 -2.1 -2.3 -1.8 -1.7 -1.7 -1.6 -0.6
S-  9  1.4  3.8  3.0  2.5  2.2  2.7  1.8 -0.7 -0.1  0.3  0.1  0.1  0.5  0.4  1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JFM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -2.57-2.47-2.71-1.65-2.11-4.48 37.65 40.04-2.39 37.21 40.46-3.24  -0.85
     50 -4.82-4.97-4.79-3.70-4.53-6.67       42.38-4.74       42.76-5.54  -0.80
     38 -0.12-0.24-0.12 1.03-0.05-1.68       37.64 0.01       38.13-0.92  -0.92
      9  2.16 2.29 2.12 3.10 2.37 0.39       35.21 2.43       35.92 1.29  -1.14
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JFM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.71  2.71                   2.55  2.61 0.98  2.12  2.27 0.93   0.96
     50         3.00                         2.97 0.86        2.32 0.92   1.07
     38         3.03                         2.71 0.94        2.54 0.84   0.89
      9         2.79                         2.46 1.04        2.36 0.90   0.87
Suggested regression eqns from two most closely related CDs ( 11 and  50): 
          0.96(F 11 - 40.46)(0.93) + 37.21      0.96(F 50 - 42.76)(0.92) + 37.21

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 3 (FMA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  11  50  13    0.861 0.853 0.849 0.841
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 43.4 44.0 45.9 46.4 43.6 44.8 43.4 45.2 44.2 42.4 39.2 42.6 42.6 39.6 44.0
cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8
cd 11 44.9 45.5 47.2 48.4 45.7 45.7 47.3 49.7 48.9 47.2 43.7 47.9 47.0 43.6 48.2
cd 50 47.2 48.8 50.0 51.4 49.7 48.5 49.2 52.0 51.9 50.4 46.3 50.5 50.4 45.8 50.5
cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7
S- 38 -1.1  0.0  0.0 -0.6 -1.9  0.9 -1.4 -3.1 -3.7 -3.7 -2.8 -2.9 -2.5 -2.0 -1.8
S- 11 -1.5 -1.5 -1.3 -2.0 -2.1 -0.9 -3.9 -4.5 -4.7 -4.7 -4.5 -5.2 -4.4 -4.0 -4.2
S- 50 -3.8 -4.8 -4.1 -5.0 -6.1 -3.7 -5.7 -6.8 -7.6 -8.0 -7.1 -7.9 -7.8 -6.3 -6.5
S- 13 -6.7 -7.3 -7.8 -7.9 -6.4 -6.3 -8.8-10.2-10.6-10.1 -9.8-11.3-10.0-10.5 -9.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
FMA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -1.05-0.85-1.12-0.31-0.69-2.79 44.08 44.93-0.85 43.42 45.19-1.77  -0.92
     11 -2.65-2.41-2.84-1.85-2.15-4.54       46.55-2.48       46.72-3.30  -0.82
     50 -5.44-5.17-5.66-4.72-4.91-7.33       49.36-5.29       49.50-6.08  -0.80
     13 -8.25-8.17-8.16-7.61-7.63*****       52.13-8.05       52.32-8.90  -0.85
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
FMA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   2.04  2.21                   2.12  2.29 0.92  1.93  1.81 1.07   1.15
     11         1.92                         2.12 1.00        1.76 1.10   1.09
     50         2.23                         2.46 0.86        1.83 1.06   1.23
     13         1.96                         2.04 1.04        1.92 1.01   0.97
Suggested regression eqns from two most closely related CDs ( 38 and  11): 
          0.93(F 38 - 45.19)(1.07) + 43.42      0.92(F 11 - 46.72)(1.10) + 43.42

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 4 (MAM)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38  11   9  50    0.861 0.846 0.845 0.818
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 51.2 50.2 54.9 53.9 53.4 52.5 49.9 51.8 53.3 48.1 48.3 48.8 51.6 48.6 48.5
cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2
cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1
cd  9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8
cd 50 54.6 55.4 59.6 59.0 59.2 57.1 57.0 57.1 60.8 56.5 55.1 56.8 59.2 55.7 55.8
S- 38 -0.9 -0.2 -1.6 -1.5 -2.0 -0.7 -3.1 -2.4 -4.7 -4.7 -3.5 -3.9 -2.8 -2.9 -2.7
S- 11 -1.3 -1.9 -1.1 -1.6 -1.6 -1.2 -3.9 -3.6 -4.3 -4.7 -4.0 -5.2 -4.0 -4.2 -4.6
S-  9  1.4  1.9  1.2  1.2  1.5  1.6 -0.1 -0.3 -1.8 -1.9 -1.5 -1.7  0.0 -0.6 -0.2
S- 50 -3.4 -5.2 -4.7 -5.1 -5.8 -4.5 -7.1 -5.3 -7.5 -8.4 -6.8 -8.0 -7.6 -7.1 -7.2

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MAM  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -1.94-1.97-2.03-1.14-1.49-3.60 52.09 54.02-1.93 51.01 53.51-2.50  -0.57
     11 -2.56-2.62-2.72-1.62-1.99-4.43       54.68-2.59       54.16-3.15  -0.56
      9  0.77 0.81 0.84 1.53 1.19-1.10       51.18 0.91       50.97 0.04  -0.87
     50 -5.64-5.64-5.79-4.71-5.11-7.51       57.72-5.63       57.25-6.25  -0.62
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MAM  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.95  1.82                   1.85  1.74 1.06  2.19  2.05 1.06   1.00
     11         1.54                         1.66 1.11        1.58 1.39   1.25
      9         1.68                         1.70 1.08        1.83 1.19   1.10
     50         1.76                         1.82 1.02        1.82 1.20   1.18
Suggested regression eqns from two most closely related CDs ( 38 and  11): 
          0.93(F 38 - 53.51)(1.06) + 51.01      0.92(F 11 - 54.16)(1.39) + 51.01

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 5 (AMJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  38  13  56    0.875 0.860 0.853 0.845
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 58.5 59.5 62.1 62.5 61.9 60.0 58.0 58.9 61.6 55.7 58.0 58.3 58.8 58.8 54.4
cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6
cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4
cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9
cd 56 66.4 67.9 69.7 70.8 69.3 68.3 67.7 69.0 70.9 66.6 67.8 69.1 69.3 68.9 65.1
S- 11 -1.5 -1.9 -1.1 -1.7 -1.5 -1.3 -2.5 -3.2 -3.4 -4.4 -3.9 -4.5 -3.6 -3.7 -4.2
S- 38 -1.8 -2.3 -1.8 -2.1 -2.5 -2.1 -2.8 -2.7 -5.1 -4.8 -3.7 -4.6 -3.8 -3.6 -4.0
S- 13 -6.9 -7.2 -6.9 -7.5 -6.2 -6.5 -8.6 -8.9 -8.3 -9.5 -9.5-10.0 -9.4 -9.3 -9.4
S- 56 -7.9 -8.4 -7.6 -8.2 -7.4 -8.2 -9.7-10.0 -9.2-10.9 -9.8-10.8-10.6-10.1-10.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
AMJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -2.49-2.67-2.71-1.69-1.85-3.95 60.61 63.26-2.65 59.14 61.96-2.83  -0.18
     38 -2.79-2.97-2.98-2.09-2.11-4.23       63.55-2.93       62.31-3.18  -0.24
     13 -7.83-8.25-7.64-7.07-7.32-9.33       68.64-8.03       67.41-8.27  -0.24
     56 -8.97-9.32-8.88-8.35-8.39*****       69.76-9.15       68.44-9.31  -0.16
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
AMJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.80  1.51                   1.59  1.45 1.10  2.20  1.64 1.34   1.22
     38         1.68                         1.64 0.97        1.97 1.12   1.15
     13         1.50                         1.36 1.17        1.66 1.33   1.13
     56         1.46                         1.32 1.21        1.53 1.44   1.19
Suggested regression eqns from two most closely related CDs ( 11 and  38): 
          0.94(F 11 - 61.96)(1.34) + 59.14      0.93(F 38 - 62.31)(1.12) + 59.14

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 6 (MJJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11   9  38  39    0.866 0.860 0.856 0.836
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 66.2 66.1 67.6 68.9 69.6 66.8 65.6 66.3 68.4 62.9 66.9 64.2 65.7 66.0 62.8
cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4
cd  9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5
cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1
cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5
S- 11 -1.9 -1.5 -0.9 -2.0 -1.5 -1.2 -1.6 -2.4 -2.5 -3.9 -3.5 -3.8 -3.0 -3.1 -3.7
S-  9  0.1  0.0  1.0  0.3  0.0 -0.4 -0.7 -0.1 -2.0 -2.2 -1.4 -2.4 -1.5 -0.5 -1.7
S- 38 -2.9 -2.4 -1.7 -2.9 -2.7 -3.2 -2.5 -2.4 -4.6 -4.3 -3.5 -4.8 -4.1 -3.4 -4.3
S- 39 -5.2 -4.9 -4.1 -5.2 -5.0 -5.6 -4.4 -4.2 -6.5 -6.9 -5.9 -6.9 -6.1 -5.8 -6.7

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
MJJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -2.32-2.84-2.42-1.63-1.67-3.36 66.70 69.39-2.69 66.27 68.69-2.42   0.27
      9 -0.49-0.66-0.70 0.08 0.14-1.68       67.31-0.61       67.04-0.77  -0.17
     38 -3.25-3.77-3.38-2.72-2.49-4.14       70.33-3.63       69.57-3.31   0.32
     39 -5.38-5.48-5.50-5.16-4.68-6.40       72.21-5.51       71.83-5.56  -0.05
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
MJJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.55  1.47                   1.33  1.43 0.93  1.89  1.45 1.30   1.39
      9         1.42                         1.45 0.92        1.53 1.24   1.35
     38         1.56                         1.61 0.83        1.65 1.14   1.38
     39         1.51                         1.60 0.83        1.61 1.18   1.41
Suggested regression eqns from two most closely related CDs ( 11 and   9): 
          0.93(F 11 - 68.69)(1.30) + 66.27      0.93(F  9 - 67.04)(1.24) + 66.27

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 7 (JJA)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  38   9  10    0.805 0.797 0.776 0.774
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 71.0 70.2 70.0 71.7 72.5 71.5 70.4 69.9 70.0 66.9 70.2 69.0 70.6 69.1 67.2
cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7
cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8
cd  9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2
cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0
S- 11 -1.8 -1.5 -1.1 -1.8 -1.2 -1.1 -1.2 -2.2 -2.6 -3.3 -3.6 -3.0 -2.5 -2.4 -3.5
S- 38 -4.2 -3.1 -1.9 -2.3 -2.3 -3.3 -2.4 -2.7 -4.4 -3.5 -4.1 -4.4 -4.7 -3.3 -4.6
S-  9 -0.4 -0.3  0.9  0.7 -0.2 -0.6 -0.4 -0.4 -2.0 -1.7 -1.9 -2.2 -1.8 -0.7 -1.9
S- 10 -5.1 -4.9 -4.4 -4.9 -5.1 -4.5 -5.5 -5.9 -6.8 -7.1 -7.0 -7.2 -5.9 -5.7 -6.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JJA  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -2.29-2.93-2.46-1.65-1.62-3.00 69.68 72.39-2.71 70.02 72.21-2.20   0.51
     38 -3.51-4.19-3.69-3.04-2.68-4.14       73.63-3.94       73.43-3.41   0.53
      9 -0.69-0.95-1.05-0.13 0.09-1.74       70.51-0.83       70.87-0.85  -0.02
     10 -5.62-5.90-5.82-5.11-4.95-6.64       75.44-5.76       75.81-5.79  -0.03
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JJA  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.25  1.21                   0.88  1.17 0.75  1.47  1.06 1.38   1.84
     38         1.33                         1.30 0.67        1.39 1.05   1.56
      9         1.17                         1.06 0.83        1.25 1.17   1.42
     10         1.07                         0.93 0.94        1.08 1.36   1.45
Suggested regression eqns from two most closely related CDs ( 11 and  38): 
          0.90(F 11 - 72.21)(1.38) + 70.02      0.89(F 38 - 73.43)(1.05) + 70.02

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 8 (JAS)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                    9  38  11  39    0.847 0.844 0.826 0.826
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 70.0 67.6 68.8 70.6 71.1 70.7 68.8 69.1 68.7 67.2 69.6 66.5 69.2 67.3 66.2
cd  9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8
cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7
cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2
cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0
S-  9 -0.1  0.2  0.3  0.8  0.2 -0.1 -0.3  0.0 -1.5 -1.1 -1.6 -1.8 -1.1 -0.4 -1.6
S- 38 -4.3 -2.8 -2.2 -2.3 -1.7 -2.8 -2.6 -2.5 -3.8 -2.7 -3.2 -3.8 -4.1 -3.2 -4.5
S- 11 -1.8 -1.5 -0.9 -1.6 -0.8 -0.8 -1.4 -2.1 -2.8 -3.0 -3.2 -2.9 -2.6 -2.4 -4.0
S- 39 -6.9 -4.8 -4.2 -4.5 -4.0 -4.5 -4.1 -4.5 -6.2 -4.7 -5.2 -5.6 -5.8 -5.0 -6.8

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
JAS  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
      9 -0.46-0.90-0.79 0.27 0.20-1.32 68.66 69.36-0.70 68.75 69.30-0.55   0.15
     38 -3.23-4.13-3.44-2.51-2.60-3.60       72.45-3.79       71.83-3.08   0.71
     11 -2.20-2.94-2.38-1.44-1.46-2.99       71.32-2.66       70.88-2.12   0.54
     39 -5.12-5.82-5.26-4.40-4.65-5.62       74.18-5.52       73.87-5.12   0.40
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
JAS  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
      9   1.46  1.38                   0.98  1.36 0.72  1.48  1.21 1.22   1.69
     38         1.54                         1.41 0.70        1.33 1.11   1.59
     11         1.34                         1.14 0.86        1.11 1.33   1.55
     39         1.60                         1.40 0.70        1.45 1.02   1.46
Suggested regression eqns from two most closely related CDs (  9 and  38): 
          0.92(F  9 - 69.30)(1.22) + 68.75      0.92(F 38 - 71.83)(1.11) + 68.75

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season 9 (ASO)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   38   9  11  39    0.839 0.839 0.829 0.801
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 64.0 64.9 64.5 64.6 63.2 62.4 62.3 63.0 62.0 59.8 61.5 60.0 63.0 61.1 59.3
cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0
cd  9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2
cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9
cd 39 69.9 68.5 67.5 67.8 66.3 66.0 66.6 66.6 68.3 64.7 66.1 65.9 68.5 66.5 66.2
S- 38 -3.7 -2.0 -1.7 -1.6 -0.7 -1.6 -2.5 -2.2 -3.9 -2.9 -3.0 -3.8 -3.5 -3.7 -4.6
S-  9  0.3  0.6  0.8  1.3  1.3  1.1 -0.3 -0.1 -1.5 -1.2 -1.8 -1.3 -1.2 -1.0 -1.8
S- 11 -1.8 -1.4 -1.1 -1.3 -0.4 -0.7 -1.9 -2.3 -3.2 -3.3 -3.6 -3.4 -2.5 -3.0 -4.5
S- 39 -6.0 -3.6 -3.1 -3.3 -3.1 -3.5 -4.3 -3.6 -6.3 -4.9 -4.7 -5.9 -5.5 -5.4 -6.9

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
ASO  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     38 -2.71-3.52-2.98-1.70-2.03-3.61 62.79 66.08-3.28 62.37 65.11-2.74   0.54
      9 -0.08-0.52-0.39 0.87 0.62-1.39       63.15-0.36       62.70-0.33   0.03
     11 -2.15-2.87-2.31-1.18-1.39-3.36       65.38-2.59       64.65-2.28   0.31
     39 -4.44-5.04-4.63-3.43-3.82-5.63       67.69-4.89       67.02-4.65   0.24
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
ASO  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     38   1.70  1.65                   1.22  1.37 0.89  1.70  1.31 1.29   1.46
      9         1.50                         1.33 0.92        1.10 1.55   1.69
     11         1.43                         1.27 0.96        1.04 1.63   1.70
     39         1.61                         1.33 0.91        1.31 1.30   1.42
Suggested regression eqns from two most closely related CDs ( 38 and   9): 
          0.92(F 38 - 65.11)(1.29) + 62.37      0.92(F  9 - 62.70)(1.55) + 62.37

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season10 (SON)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  38   9  13    0.883 0.874 0.857 0.855
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 54.3 55.4 58.8 57.1 53.8 53.0 52.8 54.5 52.5 51.9 52.0 52.8 51.5 50.5 49.6
cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2
cd 38 56.9 56.4 59.6 57.3 54.9 53.8 55.4 57.2 55.7 54.7 54.3 56.5 53.6 53.6 54.0
cd  9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5
cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5
S- 11 -1.5 -1.1 -1.2 -1.5 -0.6 -0.6 -2.4 -2.7 -3.4 -3.2 -3.9 -3.4 -2.6 -3.5 -4.6
S- 38 -2.6 -0.9 -0.8 -0.2 -1.1 -0.8 -2.6 -2.7 -3.2 -2.8 -2.3 -3.7 -2.1 -3.0 -4.5
S-  9  0.7  1.5  1.3  2.3  1.1  1.9 -0.6 -0.7 -0.9 -1.1 -1.7 -1.3 -0.5 -0.6 -1.9
S- 13 -6.6 -6.1 -6.1 -6.0 -6.0 -5.9 -8.3 -8.4 -7.9 -8.4 -9.5 -8.0 -8.2 -8.4-10.0

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
SON  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -2.08-2.39-2.23-1.24-1.46-3.53 53.92 56.22-2.30 53.38 55.81-2.43  -0.13
     38 -2.02-2.35-2.31-1.11-1.56-3.09       56.19-2.28       55.61-2.23   0.04
      9  0.32 0.14-0.01 1.25 0.92-1.15       53.73 0.19       53.41-0.03  -0.22
     13 -7.25-7.68-7.34-6.42-6.61-8.62       61.38-7.46       60.96-7.58  -0.12
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
SON  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   1.99  1.62                   1.01  0.81 1.24  2.33  1.72 1.36   1.09
     38         1.76                         1.01 1.00        1.67 1.40   1.40
      9         1.66                         0.90 1.12        1.63 1.43   1.28
     13         1.52                         0.79 1.27        1.60 1.45   1.15
Suggested regression eqns from two most closely related CDs ( 11 and  38): 
          0.94(F 11 - 55.81)(1.36) + 53.38      0.93(F 38 - 55.61)(1.40) + 53.38

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season11 (OND)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   11  13  56   9    0.909 0.893 0.885 0.880
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 44.1 49.3 48.2 47.4 45.3 43.1 39.2 46.1 43.8 41.3 40.9 45.4 40.6 42.5 40.8
cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7
cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9
cd 56 52.3 57.4 56.8 56.1 53.5 52.7 51.5 56.3 54.3 52.4 52.8 55.7 51.6 52.8 52.1
cd  9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3
S- 11 -1.2 -1.1 -1.1 -1.3 -0.7 -0.8 -3.5 -3.1 -3.3 -4.0 -4.8 -3.5 -3.2 -3.3 -3.8
S- 13 -6.6 -6.2 -6.7 -5.9 -5.5 -6.5-10.1 -8.7 -8.6 -9.3 -9.9 -8.1 -9.0 -7.9 -9.1
S- 56 -8.2 -8.1 -8.7 -8.7 -8.2 -9.5-12.3-10.2-10.5-11.1-12.0-10.2-11.0-10.3-11.3
S-  9  1.9  1.6  2.3  2.9  1.8  1.9 -0.1 -0.6 -0.6 -1.5 -2.0 -0.9 -0.5 -0.1 -1.4

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
OND  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     11 -2.12-2.10-2.34-1.33-1.58-3.72 44.09 46.20-2.12 43.88 46.46-2.59  -0.47
     13 -7.47-7.62-7.70-6.67-6.92-8.84       51.66-7.58       51.75-7.87  -0.30
     56 -9.36-9.39-9.36-8.49-9.14*****       53.39-9.30       53.89*****  -0.72
      9  0.79 0.92 0.58 1.51 1.41-1.01       43.22 0.87       43.56 0.31  -0.56
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
OND  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     11   2.34  2.00                   1.41  1.44 0.98  2.94  2.26 1.30   1.33
     13         1.84                         1.31 1.08        2.05 1.43   1.33
     56         1.82                         1.22 1.16        1.96 1.50   1.29
      9         2.15                         1.54 0.92        2.26 1.30   1.42
Suggested regression eqns from two most closely related CDs ( 11 and  13): 
          0.95(F 11 - 46.46)(1.30) + 43.88      0.95(F 13 - 51.75)(1.43) + 43.88

Station#1885  WYTHEVILLE/1 S      , va  4930103    lat/lon 81.08   36.93     6M
season12 (NDJ)    cd(maxcor1,2,3,4)   ----cormax1,2,3,4----
                   13  11  56   9    0.916 0.908 0.898 0.883
      1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
 STN: 36.3 37.8 39.1 39.1 38.1 39.7 34.4 39.3 37.5 37.1 32.3 39.4 32.8 35.8 34.7
cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8
cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7
cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0
cd  9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3
S- 13 -6.9 -7.3 -7.4 -6.3 -6.2 -6.7-10.5 -8.7 -9.0 -9.0-10.9 -8.4 -9.0 -8.8-10.1
S- 11 -1.0 -1.1 -1.1 -1.7 -1.3 -1.5 -3.7 -3.8 -3.4 -4.2 -5.2 -3.4 -3.8 -3.4 -5.0
S- 56 -8.7 -9.3 -9.6 -9.7 -9.5 -9.9-12.8-10.6-10.6-11.3-13.0-10.6-11.8-11.8-12.3
S-  9  3.0  2.0  2.4  3.3  1.7  1.6  0.1 -0.3  0.3 -0.9 -1.3 -0.5  0.2  0.6 -2.6

BIAS=== 47yr  by decade, 1950s to 90s  Early means dif Recent means dif  Bchange
NDJ  CD  5197 5160 6170 7180 8190 9197 S5165 C5165 S-C  S8397 C8397 S-C  rec-old
     13 -7.92-7.96-8.11-7.23-7.42-9.31 37.16 45.11-7.95 36.88 45.23-8.35  -0.40
     11 -2.30-2.05-2.54-1.44-1.93-4.05       39.26-2.10       39.78-2.90  -0.81
     56 ***************-9.15-9.92*****       47.11-9.95       47.66*****  -0.83
      9  1.41 1.78 1.37 2.22 1.67-0.60       35.43 1.73       36.24 0.64  -1.09
SDEV===    47yr sdevs    (S=station)   Early sdevs     Recent sdevs      Rchange
NDJ  CD   S5197 C5197       (C=CD)     S5165 C5165 S/C  S8397 C8397 S/C  rec/old
     13   2.60  2.24                   2.09  1.95 1.07  2.34  1.65 1.42   1.32
     11         2.43                         2.14 0.98        1.87 1.26   1.29
     56         2.30                         2.03 1.03        1.64 1.43   1.39
      9         2.64                         2.20 0.95        2.10 1.12   1.17
Suggested regression eqns from two most closely related CDs ( 13 and  11): 
          0.96(F 13 - 45.23)(1.42) + 36.88      0.95(F 11 - 39.78)(1.26) + 36.88