### EvaporationStations

Standarddailypanevaporationismeasuredusingthefour-footdiameterClassAevaporationpan. Thepanwaterlevelreadingisadjustedwhenprecipitationismeasuretoobtaintheactualevaporation. MostClassApansareinstalledaboveground, allowingeffectssuchasradiationonthesidewallsand heatexchngeswiththepanmaterial. Theseeffectstendtoincreasetheevaporationtotals. The amounts

canthenbeadjustedbymultiplyingthetotalsb0.70

### or0.80

### tomorecloselyestimatetheevaporation fromnaturallyexistingurfacessuchasashallowlake, wet soilorothermoistnaturalsurfaces.
Many stationsdonotmeasurepanevaportationduringwintermonths. A"0.00"

### totalindicatesnomeasuementistaken.

Stationsmarkedwithanasterisk (*) 

### haveestimatedtotalscomputedfrommeteorologicalmeasurementsusinga formofthePenmanequation.

ClickonaState:Arizona

, California

, Colorado

, Hawaii

### &PacificIslands

, ldihQ

, 

### Montana

,**.** 

### NewMexico

, Oregon

, Utah

, Washington

, WVoming

ALASKA

MONTHLYAVERAGE PANEVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT

BROOKSRIVER 1967-1990 0.00 0.00 0.00 0.00 0.00 2.48 2.88 1.63 0.73 0.00 

### CENTRAL 2 1962-2005 0.00 0.00 0.00 0.00 0.00 3.97 4.00 2.43 2.19 0.00 

### COPPERCENTER 1961-1982 0.00 0.00 0.00 0.00 0.00 6.03 4.06 3.14 1.71 0.00 

### JUNEAUAP 1949-2005 0.00 0.00 0.00 0.00 3.33 3.29 3.82 3.14 1.02 0.00 

### MATANUSKAAES 1917-2005 0.00 0.00 0.00 0.00 4.22 4.44 3.92 3.05 1.83 0.00 

### MCGRATHWBAIRPORT 1939-2005 0.00 0.00 0.00 0.00 4.20 4.42 3.65 2.29 1.40 0.00 

### MCKINLEYPARK 1949-2005 0.00 0.00 0.00 0.00 0.00 2.96 2.55 1.75 0.53 0.00 

### OILWELL ROADEp 1967-1974 0.00 0.00 0.00 0.00 0.00 5.17 3.83 2.81 1.40 0.00 

### OLDEDGERTON 1970-1996 0.00 0.00 0.00 0.00 3.31 4.56 4.16 3.04 1.65 0.00 

### PALMERAAES 1949-2005 0.00 0.0e e.ee e.ee 4.44 4.71 4.12 2.96 1.75 0.ee 

### RAMPART 2 1963-1978 0.00 0.00 0.00 0.00 4.23 4.56 3.79 2.56 1.54 0.00 

### COLLEGEUNIVEXPSTN 1931-2005 0.00 0.00 0.00 0.00 4.25 5.04 4.56 2.82 1.38 0.00



### ARIZONA

MONTHLYAVERAGE PANEVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT

BARTLETTDAM 1939-2005 3.92 4.92 7.10 10.0213.77 16.21 15.5613.95 12.10 9.66 

### BLACKRIVERPUMPS 1948-2005 0.00 0.00 0.00 6.93 8.83 10.12 7.99 7.02 5.70 3.94 

### DAVISDAM#2 1958-1977 7.49 7.46 9.75 12.7816.71 19.48 19.87 17.91 14.64 12.03 

### DAVISDAM 1948-1961 3.54 5.13 7.60 9.30 11.33 13.33 13.1412.15 9.51 7.24 

### DOUGLAS 1948-2005 0.00 0.00 0.00 11.3413.19 13.55 19.6619.27 8.18 6.44 

### FORTVALLEY 1909-2005 0.00 0.00 0.00 0.00 5.86 7.37 6.03 4.91 3.35 0.00 

### GRANDCANYONNATLPARK 1957-1977 0.00 0.00 e.00 0.00 6.94 10.45 8.79 8.12 6.83 4.91 

### GRANDCANYONN P2 1976-2005 0.00 0.00 0.00 0.00 7.46 9.80 8.94 7.29 6.10 4.45 

### HAWLEYLAKE 1967-1988 0.00 0.00 0.00 0.00 7.57 8.55 6.89 5.48 4.68 0.0e 

### MANYFARMSSCHOOL 1951-1975 0.00 3.66 5.45 9.18 12.23 15.1412.87 10.88 9.40 6.54 

### MCNARY2

### N 1933-2005 0.00 0.00 0.00 0.00 7.86 8.25 6.60 5.98 4.90 3.97 

### MESA 1896-2005 3.03 4.02 6.11 8.6411.33 12.67 13.1011.87 9.69 6.81 

### NOGALES 6

### N 1952-2005 3.59 4.46 7.91 9.35 11.91 13.31 10.00 8.28 8.06 7.17 

### PAGE 1957-2005 0.00 2.60 5.84 8.27 10.7212.86 13.0611.38 8.42 5.13 

### ROOSEVELT 1

### WNW 1905-2005 2.44 3.54 5.90 8.6411.96 14.50 14.3612.27 10.10 6.78 

### SACATON 1908-2005 3.83 5.15 7.51 10.0613.5614.89 13.69 12.05 10.20 7.91 

### SAFFORDAGRICULTRLCTR 1948-2805 2.63 3.83 7.14 10.5413.81 15.38 13.13 10.68 8.73 5.90 

### SANCARLOSRESERVOIR 1948-2005 2.25 3.27 5.66 8.40 11.70 13.9413.43 11.40 9.23 6.31 

### SIERRAANCHA 1913-1979 2.19 2.93 4.58 6.42 8.97 10.9410.39 8.88 8.00 6.22 

### SNOWFLAKE 15

### W 1965-1998 0.00 0.00 0.00 0.00 11.03 14.38 11.29 9.12 7.96 6.45 

### STEWARTMOUNTAIN 1948-2805 3.52 4.56 6.94 10.0413.11 14.27 14.4413.10 10.69 7.95 

### TEMPEA S U 1953-2085 1.56 2.93 4.79 7.04 9.44 10.85 10.99 9.92 7.63 5.14 

### TUCSONUNIVOFARIZONA 1894-2005 3.25 4.57 6.95 9.88 12.87 14.91 13.17 11.65 10.35 7.81 

### TUCSONUOFARIZ# 1 1982-2005 3.94 4.68 7.53 10.57 14.1416.51 14.61 12.17 10.71 8.05 

### WAHWEAP 1961-2005 1.95 2.77 6.30 9.42 12.82 14.94 15.2613.31 10.06 7.06 

### WHITERIVER 1

### SW 1900-2085 1.69 2.94 5.84 8.01 9.92 11.70 9.48 8.47 7.68 5.87 

### WINKELMAN 6

### S 1942-1980 3.12 4.03 7.00 9.98 12.40 13.9011.19 9.84 9.56 7.51 

### YUMACITRUSSTATION 1920-2005 3.58 4.36 6.81 9.17 11.75 13.19 13.85 12.28 9.51 6.91 

### NOV DEC

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00



### NOV DEC

5.86 4.47 0.00 0.00 8.40 7.80 5.38 3.88 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.26 2.16 0.00 0.00 4.15 2.96 4.49 3.57 2.29 0.00 3.68 2.32 4.94 3.63 3.28 2.52 3.53 2.18 3.50 2.37 3.40 0.00 4.53 3.88 2.56 1.44 4.73 3.37 4.93 3.23 3.69 2.60 3.51 2.54 4.31 2.94 4.43 3.37 

### YEAR

7.72 12.59 14.94 14.60 17.46 15.96 7.79 13.21 16.72 17.98 16.68 18.05



### YEAR

117.54

50.53 154.32 101.53

73.63 27.52 46.04 44.04 33.17 90.77 37.56 94.38 91.20 80.57 96.49 107.42

97.57 91.30 75.39 63.63 186.23

74.29 183.51 111.07 100.18

77.65 95.78 99.21CALIFORNIA

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

ANTIOCH PUMP PLANT 3 1955-2005 1.17 1.99 4.25 6.27 8.9610.84 11.6010.06 7.77 4.91 2.07 1.22 71.11 AUBURN DAM PROJECT 1972-1984 1.42 1.89 3.13 4.89 7.73 10.08 11.6610.70 8.08 5.00 1.97 1.36 67.91 AVENAL 9 SSE 1955-1961 1.80 2.90 6.20 9.39 12.9616.73 18.67 16.37 12.61 8.05 3.89 2.44 112.01 BACKUS RANCH 1948-1963 2.85 3.86 6.77 9.80 12.69 15.93 16.92 15.95 12.19 8.01 4.25 2.98 112.20 BEAUMONTPUMPING PLANT 1948-1975 2.90 3.29 4.08 5.03 6.40 8.15 10.64 9.97 7.90 5.87 3.22 2.90 70.35 BEAUMONT 1 E 1948-2001 3.10 3.73 4.99 5.23 7.60 9.31 10.97 10.66 8.85 6.53 5.16 3.95 80.08 BERRYESSA LAKE 1957-1970 1.53 2.15 3.79 5.82 8.9011.0013.22 12.06 8.67 5.72 2.48 1.66 77.00 BOCA 1948-2005 0.00 0.00 0.00 0.00 6.83 8.52 10.01 9.09 6.48 4.32 0.00 0.00 45.25 BRANNAN ISLAND 1968-1977 1.15 1.74 4.36 7.0310.49 12.39 13.51 12.02 9.03 4.80 1.83 1.08 79.43 CACHUMA LAKE 1952-2005 2.44 3.53 4.41 6.01 7.55 8.56 9.50 8.98 7.00 5.42 3.49 2.79 69.68 CAMP PARDEE 1948-2005 0.72 1.12 2.32 4.18 7.04 9.43 11.17 9.50 6.51 3.77 1.40 0.72 57.88 CHICO EXPERIMENT STN 1906-2005 1.26 2.13 3.82 5.63 8.2810.11 11.48 9.71 7.36 4.46 2.09 1.30 67.63 CHULAVISTA 1948-2005 2.81 3.45 5.03 6.06 6.76 6.96 7.63 7.48 6.21 5.02 3.58 2.78 63.77 COW CREEK 1948-1961 3.21 5.62 9.78 13.98 17.2521.37 21.89 20.17 15.3610.71 4.91 3.85 148.10 DAVIS 1WSW 1917-2005 1.49 2.34 4.54 7.1310.19 12.17 12.77 11.28 9.08 6.35 2.89 1.45 81.68 DEATHVALLEY 1961-2005 3.93 5.38 9.10 13.0016.7619.1120.98 18.86 13.95 9.78 5.54 3.75 140.14 DUTTONS LANDING 1955-1977 1.42 2.09 3.87 5.70 7.74 9.34 9.34 8.27 6.75 4.65 2.25 1.46 62.88 FALL RIVERMILLS INTAKE 1948-2005 0.00 0.00 2.47 5.80 7.54 9.48 12.1410.57 7.59 3.78 1.14 0.00 60.51 FERNDALE 2NW 1963-1973 0.70 1.17 2.26 3.21 3.95 4.38 4.49 4.07 3.59 2.06 1.04 0.72 31.64 FOLSOM DAM 1955-1993 0.92 1.90 3.47 5.21 8.07 9.91 11.12 9.93 7.45 4.89 2.06 1.25 66.18 FRIANTGOVERNMENT CAMP 1948-2005 1.46 2.12 3.82 5.89 9.4212.07 13.9612.47 9.00 5.76 2.61 1.37 79.95 GRIZZLY ISLAND REFUGE 1971-1977 1.45 2.25 4.00 5.72 8.07 9.82 10.69 8.93 6.88 4.33 2.10 1.55 65.79 HETCH HETCHY 1931-2005 0.00 0.00 0.00 3.84 5.31 7.34 8.78 7.86 5.85 3.23 1.74 0.00 43.95 INDIO FIRE STATION 1927-2005 2.85 4.38 7.15 9.98 12.73 14.85 14.95 13.59 10.80 7.60 3.98 2.49 105.35 KETTLEMAN CITY 1SSW 1955-2005 1.73 2.99 5.80 8.3211.75 14.27 16.11 14.7410.82 7.39 3.46 1.74 99.93 KNIGHTS FERRY2ESE 1959-1977 1.00 1.69 3.14 5.65 8.5410.14 11.6010.31 7.74 4.62 2.69 1.90 68.12 LAKE PILLSBURY2 1964-1970 9.58 1.42 3.01 4.62 7.41 8.38 10.31 9.35 6.93 3.61 1.19 9.87 57.68 LAKESHORE 2 1948-1972 1.09 1.68 2.97 4.78 6.15 7.43 9.71 8.79 6.44 3.40 1.41 0.95 54.80 LAKE SOLANO 1975-2905 1.48 2.37 4.28 6.66 9.24 11.2411.53 9.86 7.58 5.26 2.59 1.67 73.76 LAKE SPAULDING 1914-2003 0.00 0.00 0.00 0.00 4.57 6.52 8.16 6.78 4.54 1.98 0.00 0.00 32.55 LAKE SPAULDING DAM 1955-1971 0.90 0.09 0.09 0.00 7.20 9.98 12.38 11.85 8.94 6.64 9.00 0.90 56.99 LITTLE PANOCHE DETDAM 1968-1975 1.77 2.89 5.87 9.39 14.5616.31 18.45 16.63 12.46 7.60 3.04 1.78 110.75 LODI 1948-2905 1.19 1.95 3.82 6.91 8.60 9.92 10.63 9.11 6.68 4.08 1.86 1.97 64.92 LOS BANOS DET RESV 1968-2005 1.57 2.71 5.44 9.3414.1816.58 17.85 15.63 11.87 7.49 3.34 1.82 107.82 MANDEVILLE ISLAND 1955-1965 1.10 2.38 4.77 6.95 8.55 10.4411.22 9.71 7.41 5.12 2.47 1.13 71.25 MANTECA 1965-1977 1.20 1.71 4.04 6.33 9.2410.53 11.6410.22 7.19 4.13 1.78 1.16 69.17 MARKLEYCOVE 1970-2905 1.93 1.51 3.93 4.80 7.33 9.6010.82 9.45 6.99 4.35 1.75 1.91 61.67 MOJAVE 1948-2005 0.00 4.65 6.45 9.97 13.59 15.33 17.21 16.00 11.83 8.28 4.76 3.52 111.59 MONTICELLODAM 1957-1979 1.92 1.83 3.24 4.96 7.35 9.36 11.2019.07 7.56 4.82 1.98 1.98 64.47 NACIMIENTODAM 1957-1978 1.58 2.20 3.92 5.53 7.92 9.85 11.28 10.43 7.76 5.16 2.57 1.66 69.86 NEWARK 1948-2005 1.71 2.15 4.16 5.76 7.77 8.64 9.94 8.00 6.64 4.52 2.36 1.55 62.39 NEWMELONES DAM 1979-1992 1.34 2.25 3.56 5.93 9.1611.85 13.73 12.29 8.86 5.75 2.37 1.28 78.37 NEWMELONES DAMHQ 1992-2005 1.30 1.83 3.46 5.25 7.9410.23 12.23 11.72 8.71 5.52 2.23 1.19 71.61 OAKDALEWOODWARD DAM 1948-1967 1.93 1.72 3.42 5.47 8.95 11.88 14.23 12.22 8.53 5.52 2.19 1.92 76.99 PLACERVILLE IFG 1955-1991 1.53 1.67 2.72 3.98 5.84 7.79 9.41 8.45 6.62 3.93 1.87 1.51 55.32 RIVERSIDE CITRUS EXP ST 1948-290S 3.32 3.59 4.86 6.28 7.33 8.59 10.88 10.28 7.84 5.85 3.81 3.93 75.66 SALTSPRINGS PWRHOUSE 1948-1998 1.84 2.47 3.27 4.86 6.49 7.92 10.30 9.95 7.89 5.18 2.68 2.26 65.11 SAN LUIS DAM 1963-2905 1.41 2.49 5.31 8.6713.1415.75 18.38 16.68 12.01 7.42 3.02 1.56 195.84 SHASTADAM 1948-2905 1.50 2.08 3.17 5.05 7.28 9.18 11.3610.36 7.55 4.85 2.29 1.63 66.39 STOCKTONMOWRYBRIDGE 1955-1965 9.72 1.58 3.87 5.97 8.47 10.95 10.82 9.56 6.69 3.93 1.79 9.74 64.91 TAHOE 1914-2905 0.90 0.00 0.09 0.00 4.27 5.23 5.98 5.35 3.16 1.57 9.00 0.90 25.56 TRACY PUMPINGPLANT 1955-2905 1.53 2.47 5.39 8.2912.01 14.88 16.92 14.55 10.64 6.57 2.93 1.48 97.48 TRINITYDAMVISTA POINT 1959-1973 0.00 9.09 2.83 3.98 6.56 8.32 19.67 9.15 5.97 2.74 0.57 0.85 51.64 TRINITY RIVER HATCHERY 1974-2905 0.58 1.09 2.77 4.43 6.78 8.32 9.71 8.91 6.15 3.20 9.99 0.51 53.35 TULELAKE 1932-2005 0.00 9.09 0.00 4.56 7.55 8.39 9.52 8.53 6.80 3.49 0.00 0.00 48.84 TURNTABLE CREEK 1948-1969 1.98 2.69 3.76 5.25 6.32 8.29 10.23 9.99 8.35 5.71 3.08 2.37 67.84 TWITCHELLDAM 1962-2005 3.98 3.33 4.47 5.89 7.36 8.15 9.22 8.69 7.42 5.92 4.97 3.14 70.74 WALNUTGROVE 1953-1961 1.53 2.90 4.74 5.73 7.76 10.9410.22 8.81 6.49 3.60 2.10 1.32 65.15 WARMSPRINGS DAM 1973-1998 1.17 1.83 3.23 5.37 7.83 9.33 19.94 8.49 6.58 4.59 2.10 1.17 61.73 WHISKEYTOWN RESERVOIR 1960-2905 0.87 1.23 2.51 4.05 6.41 8.95 10.94 8.80 6.25 3.40 1.14 0.78 53.53 WILLOWCREEK 1NW 1968-2005 0.58 1.35 1.81 2.74 4.73 6.50 7.53 6.05 3.79 1.94 9.75 0.92 38.69

COLORADO

MONTHLYAVERAGE PAN EVAPORATION (INCHES)PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

AKRON4 E 1918-200S 0.00 0.00 0.00 7.30 9.29 11.43 13.2611.16 9.09 6.16 0.00 0.00 67.69 ALAMOSAWSOAP 1948-200S 0.00 0.00 0.00 7.06 9.01 10.08 9.16 7.81 6.40 4.39 0.00 0.00 S3.91 ARBOLES 19S7-1963 0.00 0.00 0.00 S.41 7.9S 9.S6 9.78 8.61 6.S2 0.00 0.00 0.00 47.83 BONNYLAKE 1949-200S 0.00 0.00 0.00 7.26 8.69 10.86 11.78 10.61 8.12 6.12 4.S7 0.00 68.01 CLIMAX 1949-200S 0.00 0.00 0.00 0.00 0.00 5.36 5.32 4.44 3.41 0.00 0.00 0.00 18.S3 CONEJOS 3NNW 1948-1960 0.00 0.00 0.00 6.30 7.14 7.67 7.41 6.87 7.19 S.74 0.00 0.00 48.32 ESTES PARK 1948-1994 0.00 0.00 0.00 5.78 S.26 7.09 7.13 6.15 5.04 4.04 0.00 0.00 40.49 FORTCOLLINS 1900-2005 0.00 0.00 2.50 4.52 S.42 6.32 6.92 6.07 4.74 3.07 1.48 0.00 41.04 GRAND JUNCTIONWALKER 1900-2005 0.00 0.00 4.67 8.5312.1815.96 16.S3 14.02 10.98 7.05 2.42 0.00 92.34 GRAND JUNCTION 6ESE 1962-2005 0.00 0.00 0.00 6.60 9.29 11.77 12.01 10.24 7.48 4.65 2.09 0.00 64.13 GRAND LAKE 6SSW 1948-2005 0.00 0.00 0.00 0.00 4.82 7.75 7.81 6.79 5.24 3.10 0.00 0.00 35.S1 GREENMOUNTAIN DAM 1948-2005 0.00 0.00 0.00 0.00 4.96 6.S6 6.93 5.90 4.6S 2.90 0.00 0.00 31.90 JOHN MARTIN DAM 1941-2005 0.00 0.00 6.40 8.04 9.67 11.3012.31 10.28 7.82 S.61 2.78 0.00 74.21 LAKE GEORGE 8SW 1948-2005 0.00 0.00 0.00 0.00 S.1S 8.26 7.39 6.02 5.72 0.00 0.00 0.00 32.S4 MEREDITH 1963-2005 0.00 0.00 0.00 0.00 7.69 8.26 8.34 6.96 5.2S 3.21 0.00 0.00 39.71 MONTROSE 1 1948-1982 1.68 1.49 3.34 5.69 7.49 9.47 9.04 7.39 5.54 3.45 1.61 1.26 S7.4S PLATORO 1949-1991 0.00 0.00 0.00 0.00 S.86 8.10 6.S7 5.24 5.52 3.33 0.00 0.00 34.62 PUEBLOWSOAP 1954-2005 0.00 0.00 0.00 8.71 9.5011.S1 12.1410.41 8.17 6.14 0.00 0.00 66.S8 PUEBLOCITYRESERVOIR 1948-1971 0.00 5.13 5.86 6.85 8.81 10.09 10.60 8.85 7.43 S.30 2.99 2.71 74.62 PUEBLO RESERVOIR 1975-2005 0.00 0.00 0.00 7.18 9.3410.87 11.S8 9.92 7.90 S.88 0.00 0.00 62.67 PUEBLO 6SSW 1971-1985 0.00 0.00 4.82 7.47 8.57 10.65 11.30 9.40 7.13 S.53 0.00 0.00 64.87 SAN LUIS LAKES 3W 1948-1955 0.00 0.00 4.50 6.07 8.51 9.88 8.49 7.77 6.57 4.53 0.00 0.00 S6.32 SPRINGFIELD 7WSW 1956-2002 0.00 0.00 0.00 7.85 9.73 11.4412.69 11.28 8.53 6.29 4.57 0.00 72.38 SUGARLOAF RESERVOIR 1948-2005 0.00 0.00 0.00 0.00 0.00 7.03 6.15 4.97 4.1S 2.93 0.00 0.00 25.23 TRINIDAD LAKE 1989-2005 0.00 0.00 0.00 6.75 9.0410.S5 9.88 8.27 7.6S 6.17 3.92 2.21 64.44 TWIN LAKES RESERVOIR 1949-2005 0.00 0.00 0.00 0.00 6.93 8.65 7.92 6.79 5.33 3.96 0.00 0.00 39.S8 VALLECITODAM 1948-2005 0.00 0.00 1.91 3.82 S.29 6.22 6.09 5.31 4.39 3.04 1.60 0.00 37.67 WAGONWHEEL GAP 3 N 1948-1972 0.00 0.00 0.00 0.00 6.69 7.90 7.15 5.81 5.30 2.61 0.00 0.00 35.46 WALSH 1 W 1951-2005 0.00 0.00 0.00 0.00 10.7812.35 12.7611.63 9.42 6.88 0.00 0.00 63.82 WIGGINS 7SW 1960-1971 0.00 0.00 0.00 6.82 8.50 8.42 9.97 8.09 5.87 4.22 2.23 0.00 S4.12

HAWAII

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

HILOWSOAP 87 1949-2005 5.06 4.87 5.1S 5.40 S.66 6.49 6.44 6.13 5.40 S.37 4.06 4.46 64.49 HONOLULUOBSRVY702.2 1962-2005 4.72 5.23 7.01 7.84 8.93 9.41 10.1010.09 8.82 7.68 S.94 5.08 90.8S LIHUEWSOAP 1020.1 1950-2005 5.62 6.22 7.62 8.22 9.21 9.85 10.4010.21 9.18 8.04 6.27 5.67 96.S1 U SMAGNETIC OBSERVATOR 1949-1960 4.16 4.58 5.90 7.09 7.87 8.16 8.15 8.21 7.24 6.17 4.41 4.83 76.77

PACIFIC ISLANDS

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP DCT NOV DEC YEAR

GUAMNAS 1945-2005 6.98 0.00 0.00 7.96 7.20 6.S8 6.22 5.53 4.68 4.70 0.00 0.00 49.8S GUAMWSMO 1957-1998 5.84 6.07 7.38 7.82 7.73 6.92 6.02 5.28 5.1S S.36 S.42 5.74 74.73 JOHNSTON ISLANDWSOAIR 1953-2004 8.69 8.7610.29 10.25 10.79 11.42 11.S010.82 9.81 9.53 8.19 8.75 118.80 MARCUS ISLANDWB 1953-1968 6.91 8.06 8.66 8.70 8.71 9.49 8.89 9.40 8.22 7.46 6.91 6.81 98.22 PAGO PAGOWSOAIRPORT 1966-2005 7.96 6.17 6.84 5.95 S.94 6.66 6.69 6.62 7.36 8.08 7.13 9.12 84.S2 WAKE ISLANDWSOAP 1953-2004 0.00 0.00 0.00 7.57 0.00 5.89 0.00 0.00 0.00 0.00 0.00 0.00 13.46 YAP ISLANDWSOAIRPORT 1953-2005 6.31 6.20 7.37 7.40 6.97 5.S1 5.61 5.68 5.61 S.85 S.50 5.93 73.94

IDAHO

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

ABERDEEN EXPERIMNTSTN 1914-2005 0.00 0.00 0.00 0.00 7.46 8.95 10.28 9.40 6.41 3.85 0.00 0.00 46.3S ARRDWROCKDAM 1916-2005 0.00 0.00 0.00 0.00 S.94 7.S3 10.18 8.93 5.7S 2.35 0.00 0.00 40.68 BLACKFOOTDAM 1948-1971 0.00 0.00 0.00 0.00 0.00 7.S6 9.19 7.42 3.97 0.00 0.00 0.00 28.14 EMMETT 2 E 1948-2005 0.00 0.00 0.00 5.62 7.09 8.82 10.S8 9.44 6.56 4.57 0.00 0.00 S2.68 ISLAND PARK 1937-2005 0.00 0.00 0.00 0.00 0.00 4.90 6.S8 5.69 0.00 0.00 0.00 0.00 17.17LIFTON PUMPING STN 1935-2005 0.00 0.00 0.00 4.08 5.97 7.41 8.70 7.80 5.35 3.02 0.00 0.00 42.33 MACKAY4NW 1965-1988 0.00 0.00 0.00 0.00 6.81 8.39 10.23 8.73 6.39 0.00 0.00 0.00 40.55 MINIDOKADAM 1947-2005 0.00 0.00 0.00 6.79 8.17 10.76 13.01 11.48 8.26 4.63 2.94 0.00 66.04 MOSCOW UNIVOF IDAHO 1893-2005 0.00 0.00 3.03 3.85 5.66 6.53 8.62 8.23 5.29 3.03 2.85 0.00 47.09 PALISADES 1947-1993 0.00 0.00 0.00 4.01 5.56 7.04 9.38 8.32 5.48 3.58 0.00 0.00 43.37 PARMAEXPERIMENT STN 1922-2005 0.00 0.00 0.00 6.00 8.26 9.05 10.41 9.47 6.30 0.00 0.00 0.00 49.49 REXBURG RICKS COLLEGE 1977-2005 0.00 0.00 0.00 0.00 6.59 7.29 8.06 7.36 5.23 0.00 0.00 0.00 34.S3 SANDPOINTEXPERMNTSTN 1910-2005 0.00 0.00 0.00 0.00 4.96 5.51 7.47 6.78 4.47 0.00 0.00 0.00 29.19 TWIN FALLSWSO 1963-2005 0.00 0.00 0.00 5.80 8.09 9.15 10.24 9.09 6.65 4.25 0.77 0.00 54.04

MONTANA

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

SASS 6NE 1948-2005 0.00 0.00 0.00 0.00 5.23 5.91 6.87 5.90 4.06 0.00 0.00 0.00 27.97 BOZEMANMONTANASTUNIV 1892-2005 0.00 0.00 0.00 3.34 5.58 6.03 8.34 7.17 4.57 2.62 0.00 0.00 37.65 BOZEMAN 6WEXP FARM 1966-2005 0.00 0.00 0.00 4.24 5.68 6.62 8.19 7.73 4.88 2.99 0.00 0.00 40.33 CANYON FERRYDAM 1948-1957 0.00 0.00 0.00 0.00 7.98 7.13 8.17 7.41 5.50 3.11 0.00 0.00 39.30 CANYON FERRYDAM 1907-1996 0.00 0.00 0.00 3.15 5.04 6.21 7.91 7.04 4.18 1.93 0.00 0.00 35.46 DILLONWMCE 1895-2005 0.00 0.00 0.00 3.05 4.72 5.32 6.41 5.45 3.48 2.84 0.00 0.00 31.27 FORTASSINNIBOINE 1917-2005 0.00 0.00 0.00 4.54 6.43 7.30 8.86 8.12 5.00 0.00 0.00 0.00 40.25 FORTPECK 1948-1956 0.00 0.00 0.00 0.00 5.99 8.17 9.51 8.04 5.36 4.25 0.00 0.00 41.32 FORTPECKPOWER PLANT 1956-2005 0.00 0.00 0.00 0.00 7.34 8.45 10.42 9.81 5.83 3.53 0.00 0.00 45.38 HUNGRYHORSE DAM 1948-2005 0.00 0.00 0.00 0.00 4.83 5.62 7.81 6.63 3.46 1.37 0.00 0.00 29.72 HUNTLEY EXPERIMENTSTN 1911-2005 0.00 0.00 0.00 5.03 6.71 7.40 8.88 8.15 5.10 0.00 0.00 0.00 41.27 LONESOME LAKE 1948-1981 0.00 0.00 0.00 0.00 7.42 7.60 9.25 8.31 5.70 0.00 0.00 0.00 38.28 MALTA7 E 1972-2005 0.00 0.00 0.00 4.67 6.50 6.51 7.61 6.84 4.17 1.34 0.00 0.00 37.64 MEDICINE LAKE 3SE 1911-2005 0.00 0.00 0.00 0.00 7.44 7.69 9.62 9.19 5.36 0.00 0.00 0.00 39.30 MOCCASIN EXPERIMENT STN 1909-2005 0.00 0.00 0.00 4.35 6.59 7.72 9.66 9.21 6.39 0.00 0.00 0.00 43.92 SIDNEY 1910-2005 0.00 0.00 0.00 3.99 5.63 6.44 6.93 5.45 2.89 1.81 0.00 0.00 33.14 TIBERDAM 1952-2005 0.00 0.00 0.00 0.00 4.51 6.46 7.65 5.56 4.34 0.00 0.00 0.00 28.52 VALIER 1911-2005 0.00 0.00 0.00 0.00 5.37 6.49 7.33 5.62 4.72 0.00 0.00 0.00 29.53 WESTERNAG RESEARCH CNT 1965-2005 0.00 0.00 0.00 0.00 5.08 6.03 7.26 6.07 4.14 2.25 0.00 0.00 30.83 YELLOWTAILDAM 1948-2005 0.00 0.00 0.00 0.00 6.94 8.8410.60 9.74 6.58 4.86 0.00 0.00 47.S6

NEVADA

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

BEOWAWE UOF NRANCH 1972-2005 0.00 0.00 0.00 3.98 7.17 8.68 10.42 9.52 6.97 4.43 0.00 0.00 51.17 BOULDERCITY 1931-2004 3.71 4.68 7.56 10.67 13.79 16.57 16.45 14.41 11.51 8.11 4.87 3.69 116.02 CALIENTE 1928-2005 0.00 0.00 3.97 6.82 8.57 10.58 11.13 9.41 6.89 4.35 1.91 0.00 63.63 CENTRALNEVADA FIELD LA 1965-1986 0.00 0.00 2.98 5.95 8.69 10.49 12.2411.31 8.08 4.88 1.73 0.00 66.35 FALLON EXPERIMENT STN 1950-1992 1.34 2.23 4.39 6.15 7.70 8.91 9.87 8.63 6.10 3.90 1.91 1.37 62.50 LAHONTAN 1948-2005 0.00 0.00 0.00 7.18 9.6411.58 13.75 12.23 7.83 4.51 2.09 0.00 68.81 LOGANDALE 1968-1992 2.55 3.61 5.26 8.9612.44 14.2014.38 12.07 8.67 7.66 3.86 2.89 96.55 RUBY LAKE 1948-2005 0.00 0.00 0.00 5.10 7.09 8.9010.54 9.37 6.51 3.95 0.00 0.00 51.46 RYE PATCH DAM 1948-2005 0.00 0.00 3.71 5.83 7.38 9.23 11.15 10.06 6.95 4.30 0.77 0.00 59.38 SILVERPEAK 1967-2005 0.00 3.84 7.26 10.1313.6016.31 17.98 15.92 11.32 6.88 2.94 0.00 106.18 TOPAZ LAKE 1957-2005 0.00 0.00 0.00 7.15 9.11 10.9412.68 11.56 8.80 5.95 2.79 0.00 68.98

NEWMEXICO

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

ABIQUIU DAM 1957-2005 0.00 0.00 6.06 7.43 9.95 11.39 10.52 8.90 7.23 5.30 3.13 2.22 72.13 AGRICULTURAL COLLEGE 1892-1959 3.01 4.00 7.89 10.20 8.65 13.99 12.33 11.16 8.31 6.28 4.35 2.89 93.06 ALAMOGORDODAM 1939-1975 3.73 4.35 8.21 11.3012.8814.43 13.6611.59 9.17 7.19 4.89 3.46 104.86 ANIMAS 1923-2005 3.87 4.91 8.29 10.7812.3614.25 11.6011.07 8.54 6.71 4.69 3.61 100.68 ARTESIA6 S 1914-2005 4.38 3.03 7.25 7.6612.11 13.13 10.86 10.44 9.36 6.34 3.12 0.00 87.68 BITTER LAKES WL REFUGE 1950-2005 2.67 3.93 6.82 9.60 11.31 12.62 11.88 10.16 8.02 5.85 3.53 2.50 88.89 BOSQUE DELAPACHE 1914-2005 3.21 4.20 7.76 10.20 11.61 13.13 11.5610.36 8.03 6.25 3.66 2.54 92.51 BRANTLEYDAM 1987-2005 4.65 0.00 8.62 11.77 14.61 15.46 14.19 12.22 9.88 7.97 5.77 4.34 109.48 CABALLODAM 1938-2005 4.42 5.10 8.56 11.37 13.59 14.8013.08 11.35 9.26 7.27 4.78 3.48 107.06 CAPULIN NATLMONUMENT 1966-1979 0.00 0.00 0.00 0.00 9.0810.57 9.71 9.18 7.6S 0.00 0.00 0.00 46.19CLOVIS 13 N 1929-2005 3.83 4.12 6.63 8.7210.15 11.45 11.65 9.55 7.64 5.78 3.95 3.21 86.68 COCHITI DAM 1975-2005 0.00 4.14 6.44 8.4811.07 12.95 12.38 10.62 8.91 6.29 3.94 2.79 88.01 CONCHAS DAM 1938-2005 0.00 0.00 7.35 8.8810.29 11.69 11.37 10.06 8.24 6.18 4.04 2.79 80.89 EAGLE NEST 1937-2005 0.00 0.00 0.00 4.91 7.67 7.83 7.07 5.87 5.30 4.31 0.00 0.00 42.96 ELVADODAM 1923-2005 0.00 0.00 3.61 5.43 7.46 8.84 8.52 6.91 5.66 3.84 1.72 0.00 51.99 ELEPHANT SUITE DAM 1917-2005 3.47 4.87 8.61 12.2214.9416.37 14.15 12.05 9.78 7.70 4.91 3.34 112.41 ESTANCIA 1914-2005 0.00 0.00 3.26 6.79 8.56 9.27 8.61 7.10 5.60 3.82 2.62 0.00 55.63 FARMINGTONAG SCIENCE

## c 1978-2005 0.00 0.00 0.00 7.97 10.0612.0012.52 10.70 8.15 5.41 0.00 0.00 66.81 FLORIDA 1939-1992 3.54 4.81 8.10 10.9413.03 14.80 11.8410.10 8.51 6.58 4.57 3.11 99.93 GALLUP RANGER STN 1966-1975 0.00 0.00 0.00 6.61 9.31 12.12 10.50 8.70 7.95 5.07 2.20 0.00 62.46 JEMEZ DAM 1953-2005 0.00 0.00 0.00 9.91 12.27 13.95 14.29 11.45 9.80 6.72 3.65 0.00 82.04 JORNADA EXP RANGE 1925-2005 2.50 4.18 7.24 10.0611.9412.85 10.88 9.53 7.82 5.71 3.61 2.50 88.82 LAGUNA 1914-2005 0.00 0.00 0.00 8.47 9.33 11.98 10.76 8.88 6.83 5.00 1.98 0.00 63.23 LAKE AVALON 1914-1979 4.49 5.33 9.42 12.36 14.31 15.16 14.1412.33 9.25 7.26 4.68 4.20 112.93 LAKE MC MILLAN 1941-1949 0.00 0.00 0.00 13.78 8.1414.26 13.38 13.45 19.35 6.15 0.00 0.00 79.51 LOS LUNAS 3SSW 1923-2005 1.87 2.81 5.27 7.77 9.7410.49 10.06 8.67 6.58 4.64 2.75 2.45 73.10 NARROWS 1948-1964 3.09 5.67 7.62 11.07 13.37 15.4413.07 11.42 9.97 7.29 4.32 2.64 104.88 NAVAJO DAM 1963-2005 0.00 0.00 0.00 6.58 9.1011.07 11.24 9.66 7.22 4.74 0.00 0.00 59.61 PORTALES 7WNW 1934-1969 3.26 4.57 8.24 8.85 10.7212.16 10.44 9.28 7.95 5.98 4.15 3.53 89.13 HOOD RANGER STN 1954-2005 0.00 0.00 0.00 7.84 9.0210.81 8.25 6.87 6.12 5.14 2.65 0.00 56.70 ROSWELLWSOAIRPORT 1893-1972 0.00 0.00 0.00 11.29 0.00 15.87 12.11 12.63 7.92 6.97 4.66 4.51 75.96 SANTAFE 1867-1972 0.00 0.00 3.00 7.28 8.73 10.93 9.95 8.26 7.15 5.10 2.50 0.00 62.90 SANTAFE 2 1972-2005 0.00 0.00 0.00 7.19 9.7611.31 10.36 9.29 7.41 5.08 0.00 0.00 60.22 SHIPROCK 1926-2005 0.00 0.00 0.00 7.8410.57 14.4413.17 10.80 9.80 6.54 0.00 0.00 73.16 SOCORRO 1914-2095 0.00 0.00 4.83 7.09 9.17 9.35 8.56 7.57 5.73 4.14 0.00 0.00 56.44 STATE UNIVERSITY 1959-2005 3.00 4.33 7.40 9.99 12.93 12.91 12.05 10.34 8.14 6.17 3.85 2.79 92.91 SUMNER LAKE 1921-2005 0.00 0.00 7.33 19.2212.35 13.54 13.3611.16 9.02 6.97 4.92 3.17 92.04 TUCUMCARI4NE 1904-2005 0.00 0.00 0.00 9.83 11.53 13.11 13.0011.13 8.96 6.74 0.00 0.00 74.30 UTE DAM 1965-2005 4.38 4.91 7.53 8.7810.75 10.49 10.92 9.42 7.56 6.68 4.98 3.04 89.44

OREGON

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG 5EP OCT NOV DEC YEAR

ASTOR EXPERIMENT STN 1948-1973 0.56 0.96 1.47 2.21 3.75 3.95 4.65 4.19 2.95 1.65 0.87 0.70 27.82 BEND7NE 1991-2005 0.00 0.00 0.00 4.25 6.14 6.69 8.66 7.91 5.42 0.00 0.00 0.00 39.07 CORVALLIS STATE UNIV 1889-2005 0.00 0.00 1.79 2.96 4.59 5.86 7.70 7.07 5.06 2.33 0.96 0.00 38.32 COTTAGE GROVE DAM 1943-2005 0.00 1.27 2.16 3.07 4.56 5.60 7.75 6.79 4.47 2.06 0.82 0.00 38.46 DETROITDAM 1954-2005 0.19 1.16 1.69 2.51 4.38 5.90 7.68 6.64 4.24 2.05 0.88 0.46 37.78 DORENADAM 1948-2005 0.00 1.01 1.94 2.95 4.98 6.11 8.19 7.15 4.66 2.01 0.00 0.00 39.00 FERN RIDGE DAM 1943-2005 0.39 0.79 1.92 3.17 5.03 6.21 8.12 7.09 4.76 2.21 0.67 0.34 40.70 HERMISTON 2 S 1928-1997 0.00 0.00 3.44 5.43 7.91 9.67 11.32 9.66 6.32 3.97 0.00 0.00 57.72 HOOD RIVER EXP STN 1928-2005 0.00 0.00 0.00 0.00 6.45 6.80 8.81 7.04 3.32 3.09 0.00 0.00 35.51 KLAMATH FALLSAGR STN 1949-2004 0.70 1.31 2.81 4.73 7.21 8.79 10.24 9.41 6.30 4.37 0.00 0.67 56.54 LOOKOUT POINTDAM 1955-2005 0.00 1.76 2.29 3.19 4.67 5.77 7.69 6.89 4.45 1.96 1.91 0.00 39.59 MADRAS 1NNW 1952-2005 0.00 0.00 0.00 4.72 7.12 8.66 10.23 9.17 6.21 3.16 1.70 0.00 50.97 MALHEURBRANCH EXP STN 1943-2005 0.00 0.00 0.00 5.68 7.71 8.9411.06 9.57 6.17 3.14 0.72 0.00 52.99 VOLTAGE 2NW 1959-2005 0.00 0.00 0.00 4.37 6.22 7.67 9.58 8.52 5.86 3.19 0.00 0.00 45.41 MEDFORD EXP STN 1937-2003 0.53 1.02 2.26 3.56 5.29 6.54 8.24 6.78 4.05 1.81 0.76 0.44 41.28 MORO 1928-2005 0.00 0.09 2.96 5.11 7.74 9.60 12.3411.18 7.15 3.56 0.00 0.00 59.64 NWILLAMETTE EXP STN 1963-2005 0.63 1.18 2.29 3.31 5.15 6.01 7.40 6.78 4.68 2.39 1.95 0.57 41.44 ODELL LAKE LAND PAN 1948-1989 0.00 0.09 0.00 0.00 3.17 4.13 5.54 3.81 1.90 0.67 0.00 0.00 19.22 ODELL LAKEWATER PAN 1945-1959 0.00 0.00 0.00 0.00 1.87 2.71 3.97 4.01 3.44 2.02 0.00 0.00 18.02 PELTON DAM 1958-2005 0.00 0.09 0.00 4.48 6.77 8.26 9.98 8.12 5.22 2.49 0.00 0.00 45.32 PENDLETON BREXP STN 1956-2005 0.00 0.00 3.41 5.09 6.93 8.81 11.78 10.85 7.02 3.89 0.00 0.00 57.69 SUMMER LAKE 1 S 1957-2005 0.00 0.09 0.00 5.19 7.28 8.71 10.88 9.79 6.48 3.48 1.90 0.00 53.71 UNION EXP STN 1928-2005 0.00 0.00 0.00 3.16 4.80 6.03 7.49 6.89 4.32 2.74 0.00 0.00 35.34 WARMSPRINGS RESERVOIR 1931-1974 0.00 0.09 0.00 4.85 7.21 8.66 11.73 10.19 6.77 3.49 0.00 0.00 52.90 WICKIUP DAM 1941-2005 0.00 0.09 0.00 2.99 5.14 6.46 7.99 6.84 4.68 2.46 0.00 0.00 36.56 WINCHESTER 1959-2005 0.00 0.09 0.00 2.25 3.79 5.51 6.93 6.38 4.51 1.33 0.00 0.00 30.70 WINCHESTER 3 W FSTN 1981-1989 0.91 0.96 2.06 3.62 5.94 6.62 8.48 8.19 4.94 2.46 1.17 0.87 45.32

UTAH

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG 5EP OCT NOV DEC YEAR

ARCHES NATL PARKHQ 1989-2005 0.00 0.00 0.00 7.44 9.81 12.33 12.9411.15 8.16 4.73 0.00 0.00 66.56 BEARRIVER BAY 1969-1996 0.00 0.00 0.00 6.27 10.17 12.59 13.8612.29 7.83 4.89 0.00 0.00 67.90 BEARRIVER REFUGE 1948-1984 0.00 0.09 0.00 4.89 7.21 8.66 10.46 9.39 6.13 3.27 1.27 0.00 51.10BRYCE CANYON NAT'L PRK 1971-1978 0.00 0.00 0.00 0.00 6.86 7.86 8.07 7.21 5.30 0.00 0.00 0.00 35.30 FARMINGTON USU FLDSTN 1948-2005 0.00 0.00 0.00 0.00 7.33 6.35 9.25 8.62 4.63 2.97 0.00 0.00 39.15 FERRON 1948-2005 0.00 0.00 0.00 5.20 5.66 8.06 6.58 6.39 5.49 3.53 0.00 0.00 40.91 FISH SPRINGS REFUGE 1960-2005 0.00 0.00 0.00 7.02 10.7012.9015.92 13.58 9.92 5.84 0.00 0.00 75.88 FLAMING GORGE 1957-2005 0.00 0.00 0.00 0.00 6.23 8.74 9.71 8.62 5.76 3.94 0.00 0.00 43.00 FORTDUCHESNE 1894-2005 0.00 0.00 0.00 5.16 7.41 8.61 9.06 7.98 5.57 3.25 0.00 0.00 47.04 GREEN RIVERAVIATION 1893-2005 0.00 0.00 0.00 6.07 8.07 9.29 9.49 7.97 5.74 3.52 1.60 0.00 51.75 GUNNISON 1956-1990 0.00 0.00 0.00 5.10 7.23 8.70 9.65 8.26 6.03 3.81 0.00 0.00 48.78 HITE 1949-1962 0.00 0.00 0.00 7.8411.74 14.1414.01 12.44 8.34 4.86 1.94 0.00 75.31 LOGAN USU EXP STN 1950-1978 0.00 0.00 0.00 4.01 5.98 7.05 8.37 7.50 5.02 2.92 0.00 0.00 40.85 LOGAN 5SW EXP FARM 1969-2005 0.00 0.00 3.30 4.57 6.57 8.48 10.05 8.93 5.88 3.51 0.00 0.00 51.29 MANILA 1952-2005 0.00 0.00 0.00 0.00 7.31 8.66 9.83 8.37 6.50 4.63 0.00 0.00 45.30 MEXICAN HAT 1948-2005 0.00 0.00 6.31 8.45 11.99 14.42 14.87 12.48 9.37 5.52 2.25 0.00 85.66 MILFORD 1906-2005 0.00 0.00 0.00 7.47 10.22 13.5415.47 13.24 9.88 6.16 2.32 0.00 78.30 MOAB 1889-2005 0.00 0.00 4.19 7.29 10.41 12.03 12.72 10.75 7.66 4.25 2.26 0.00 71.56 MORGAN 1948-2005 0.00 0.00 0.00 4.94 6.96 7.30 9.07 8.01 6.15 3.74 0.00 0.00 46.17 PIUTE DAM 1948-1971 0.00 0.00 0.00 0.00 7.91 9.98 10.13 8.40 6.98 4.60 0.00 0.00 48.00 PROVOAIRPORT 1948-1953 0.00 0.00 2.91 6.03 6.83 8.62 8.88 8.36 6.09 3.41 0.00 0.00 51.13 PROVO BYU 1980-2005 0.00 0.00 2.59 4.71 6.81 8.77 9.85 8.70 5.59 2.92 0.00 0.00 49.94 PROVO RADIO KAYK 1952-1977 0.00 0.00 0.00 4.38 5.94 7.53 8.32 7.58 5.40 3.21 1.53 0.00 43.89 ST GEORGE 1862-2005 0.00 0.00 4.57 7.36 10.0812.22 13.17 11.55 8.22 4.83 2.68 0.00 74.68 SALTAIRSALT PLANT 1956-1991 0.00 0.00 3.66 6.20 9.19 11.88 14.4012.67 8.58 4.86 2.32 0.00 73.76 SCOFIELD DAM 1948-1991 0.00 0.00 0.00 0.00 5.52 7.84 8.29 6.94 5.13 3.90 0.00 0.00 37.62 SEVIERDRY LAKE 1987-1993 0.00 0.00 2.93 6.33 13.5216.06 18.32 0.00 0.ee 0.00 0.00 0.00 57.16 STRAWBERRY RESERVOIR EA 1956-1977 0.00 0.00 0.00 0.00 5.82 7.28 7.87 7.31 5.08 3.02 0.00 0.00 36.38 UTAH LAKE LEHI 1928-2003 0.00 0.00 2.77 5.19 7.11 8.80 9.61 8.58 6.10 3.81 1.42 0.00 53.39 VERNALARPT 1928-2005 0.00 0.00 0.00 5.07 6.41 7.48 6.64 6.34 4.89 2.92 0.00 0.00 39.75 WANSHIP DAM 1955-2005 0.00 0.00 0.00 0.00 6.09 6.79 7.41 6.59 4.79 3.19 0.00 0.00 34.86

WASHINGTON

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

BELLINGHAM2 N 1948-1985 0.00 0.00 0.00 2.75 4.59 5.35 6.28 5.56 3.34 1.22 0.00 0.00 29.09 BELLINGHAM 3SSW 1985-2005 0.00 0.00 0.00 0.00 3.77 4.69 5.31 4.59 2.65 1.39 0.00 0.00 22.31 BUMPING LAKE 1931-1967 0.00 0.00 0.00 0.00 4.01 4.13 5.58 4.63 3.19 2.34 0.00 0.00 23.88 CONNELL 1W 1969-2003 0.00 0.00 0.00 5.43 8.35 9.89 11.9010.77 6.88 3.09 0.00 0.00 56.22 ELTOPIA6 W 1954-1973 0.00 0.00 3.23 5.46 6.61 7.73 9.36 7.56 4.93 2.45 0.83 0.00 48.16 ELTOPIA 8WSW 1974-2005 0.00 0.00 0.00 4.44 6.10 7.05 8.07 7.04 4.44 2.06 0.62 0.00 39.82 LAKE KACHESS 1931-1977 0.00 0.00 0.00 2.37 3.78 4.82 6.12 5.12 3.20 0.00 0.00 0.00 25.41 LIND 3NE EXP STN 1931-2005 0.00 0.00 0.00 5.35 8.92 9.40 12.02 10.44 6.87 2.59 0.00 0.00 54.69 MOSES LAKE 3 E 1943-1979 0.00 0.00 0.00 5.51 7.50 8.78 10.29 8.10 5.53 2.79 0.00 0.00 48.50 OROVILLE 1 S 1969-1979 0.00 0.00 0.00 4.49 5.82 6.36 7.42 6.22 4.28 1.99 0.00 0.00 36.58 OTHELLO 6 ESE 1941-2002 0.00 0.00 0.00 5.40 7.60 9.00 10.77 9.14 6.12 2.92 0.00 0.00 50.95 PROSSER4 NE 1931-2005 0.00 0.00 2.49 4.86 6.57 7.50 8.61 7.09 4.73 2.48 0.80 0.69 45.82 PUYALLUP 2 WEXP STN 1931-1995 0.00 0.71 1.58 2.46 3.97 4.63 5.61 4.97 2.92 1.28 0.61 0.00 28.74 QUINCY 1 S 1941-2005 0.00 0.00 0.00 5.76 8.05 9.00 10.20 8.52 5.52 2.60 0.00 0.00 49.65 RIMROCK TIETON DAM 1947-1977 0.00 0.00 0.00 0.00 5.35 7.08 15.41 6.71 3.70 1.63 0.00 0.00 39.88 SEATTLE MAPLE LEAF R 1941-1960 0.61 0.82 1.80 3.26 4.64 5.12 6.70 5.19 3.49 1.62 0.74 0.53 34.52 SPOKANEWSOAIRPORT 1889-2005 0.00 0.00 0.00 4.66 7.27 8.57 11.28 10.22 6.41 0.00 0.00 0.00 48.41 WALLAWALLA3 WENT LA 1931-1962 0.00 0.00 0.00 4.79 6.26 7.61 9.72 7.95 4.78 2.58 0.00 0.00 43.69 WENATCHEE EXP STN 1959-1997 0.00 0.00 0.00 4.74 6.87 7.87 9.38 7.83 4.19 0.00 0.00 0.00 40.88 WHITMAN MISSION 1962-2005 0.00 0.00 0.00 4.58 6.58 8.17 10.34 9.08 5.52 2.84 0.00 0.00 47.11 WIND RIVER 1901-1977 0.00 0.00 0.00 2.91 4.19 4.64 6.15 4.97 3.31 1.62 0.00 0.00 27.79 YAKIMAWSOAP 1946-2005 0.00 0.00 0.00 5.27 7.62 8.71 10.42 9.29 5.90 0.00 0.00 0.00 47.21

WYOMING

MONTHLYAVERAGE PAN EVAPORATION (INCHES)

PERIOD OF RECORD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR

ANCHOR DAM 1961-1979 0.00 0.00 0.00 0.00 6.46 7.57 9.66 8.31 5.95 5.33 0.00 0.00 43.28 ARCHER 1948-2005 0.00 0.00 0.00 3.66 5.71 7.08 8.30 7.94 5.94 4.45 0.00 0.00 43.08 BOYSEN DAM 1948-2005 0.00 0.00 0.00 5.44 6.72 8.24 9.86 9.08 5.92 3.20 0.00 0.00 48.46 FARSON 1915-2005 0.00 0.00 0.00 0.00 7.45 9.37 10.67 8.94 6.53 3.89 0.00 0.00 46.76 GILLETTE 9 ESE 1925-2005 0.00 0.00 0.00 4.52 6.40 7.50 9.88 9.44 6.18 4.36 2.39 0.00 50.67 GREEN RIVER 1915-2005 0.00 0.00 0.00 0.00 8.22 9.71 11.08 9.89 6.82 4.62 0.00 0.00 50.25 HEARTMOUNTAIN 1949-2005 0.00 0.00 0.00 3.50 5.82 6.37 7.35 6.67 4.37 3.43 0.00 0.00 37.51 KEYHOLE DAM 1949-1958 0.00 0.00 0.00 4.99 6.96 7.25 9.56 9.91 6.04 3.68 0.00 0.00 46.59 LARAMIE 2NW 1966-2005 0.00 0.00 0.00 0.00 8.21 10.26 10.71 9.58 7.48 4.76 0.00 0.00 51.00LOOKOUT 14NE 1948-1965 0.00 0.00 0.00 0.00 7.50 11.32 10.89 10.40 7.76 7.30 0.00 0.00 55.17 MORTON 1 NW 1949-1968 0.00 0.00 0.00 3.91 5.59 6.73 8.27 7.31 4.96 3.35 0.00 0.00 40.12 PATHFINDER DAM 1948-1991 0.00 0.00 3.20 5.07 6.78 8.78 10.53 9.75 7.17 4.95 2.81 0.00 59.04 SEMINOE DAM 1948-2005 0.00 0.00 0.00 0.00 5.24 8.27 8.99 8.12 5.59 0.00 0.00 0.00 36.21 SHERIDAN FIELD STN 1920-2005 0.00 0.00 0.00 3.55 6.29 7.88 10.21 9.73 6.48 0.00 0.00 0.00 44.14 WHALEN DAM 1949-1991 0.00 0.00 3.32 5.17 7.44 9.00 10.39 9.09 6.24 4.18 0.00 0.00 54.83