Report Generated 06/23/2023 at 1359

Page Description

2 - Mean Daily Water Temperature, Release Flow Rates and Air Temperatures with Monthly Averages

3 - Sacramento River Mean Daily Water Temperature Plot

4 - Trinity River Mean Daily Water Temperature Plot

5 - Shasta Lake Isothermobaths & Cold Water Pool Statistics

14 - Trinity Lake Isothermobaths & Cold Water Pool Statistics

23 - Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

x - TCD Configuration (External Link)

All Data in this Report is Preliminary and Subject to Change

Northern CVP Water Temperature Report

March - 2023
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Feb 2585 180 3307 44.2 45.9

03/01 47.1 46.5 45.5 46.4 46.2 46.5 44.5 43.8 ? 43.9 44.5 43.2 40.4 40.2 2234 325 3325 42.0 40.3 41.8

03/02 47.1 46.5 45.4 46.2 46.4 47.0 46.3 45.8 45.7 45.4 43.3 ? 41.9 ? 42.4 2114 465 3324 51.5 45.1 46.2

03/03 46.9 46.6 45.5 46.2 46.3 46.9 47.4 47.5 47.6 45.6 43.3 42.1 42.9 1287 766 3318 46.5 45.9 46.1

03/04 46.9 ? 46.3 45.6 46.4 46.3 46.4 47.6 47.8 48.0 45.3 ? 42.9 41.4 41.5 2215 285 3319 46.5 45.4 46.0

03/05 46.9 ? 46.2 46.1 46.6 46.5 46.8 47.1 46.7 46.9 45.0 ? 42.9 41.0 ? 41.0 2614 37 3326 45.0 43.6 44.7

03/06 46.9 ? 46.1 45.6 46.6 46.3 46.1 46.9 46.1 46.1 44.0 44.3 41.2 41.5 2394 289 3330 37.5 36.1 39.5

03/07 46.7 46.2 45.4 46.3 46.2 46.4 46.2 45.2 45.4 44.7 45.7 41.5 41.8 2714 319 3321 43.5 42.5 44.0

03/08 46.7 46.4 45.5 46.3 46.5 46.8 46.3 46.0 46.4 45.1 ? 46.0 41.8 ? 42.3 2354 338 3321 45.5 46.5 48.0

03/09 46.6 46.0 45.2 ? 46.0 45.3 45.3 46.3 46.7 46.7 ? 43.9 ? 45.8 ? 40.7 ? 41.9 1855 658 3329 40.0 40.3 44.0

03/10 46.5 46.9 45.1 46.1 45.0 45.9 ! 42.7 43.7 46.0 ? 45.8 ? 39.1 ? 39.4 484 1683 3323 47.0 49.5 52.2

03/11 46.6 46.3 45.1 46.1 45.8 46.2 46.6 46.8 46.7 46.1 45.7 41.0 42.0 944 1641 3323 44.5 44.1 45.5

03/12 46.8 46.1 45.2 46.1 46.0 46.3 47.1 47.0 47.2 46.6 45.7 41.5 42.7 1687 314 3321 47.0 47.0 48.5

03/13 46.7 46.7 45.3 46.5 47.1 47.4 48.2 48.3 49.0 47.9 43.3 41.0 42.6 1982 337 3319 57.0 56.7 57.1

03/14 46.6 47.4 45.3 47.4 48.5 48.4 49.6 50.1 50.5 48.9 43.2 # 42.5 179 1345 4097 50.0 51.4 54.7

03/15 46.9 48.1 45.4 47.6 48.1 48.3 48.2 48.5 49.1 48.0 43.6 # 43.3 1306 1141 4858 49.5 48.9 51.3

03/16 46.8 46.8 45.4 47.6 48.1 48.6 48.9 48.9 49.3 47.6 43.8 # 44.2 1498 1703 4648 54.0 49.9 52.2

03/17 46.9 46.3 45.5 47.9 48.3 48.7 49.5 49.6 50.0 47.4 43.8 # 44.3 1629 1673 4444 52.5 50.5 52.5

03/18 46.8 46.1 45.6 47.6 47.9 48.4 49.5 50.0 50.4 47.1 43.8 # 44.2 2034 1717 4241 51.5 50.2 51.9

03/19 46.6 46.1 45.5 47.4 48.2 48.1 50.0 50.1 50.4 48.1 44.2 # 45.0 1658 1723 4042 51.5 51.5 51.8

03/20 46.8 46.3 45.4 47.4 48.7 49.0 50.2 50.3 50.8 49.1 45.4 # 45.3 837 1700 3936 51.0 52.2 52.3

03/21 46.7 46.2 45.6 47.3 47.6 47.9 49.4 50.2 ? 50.6 47.9 46.6 # 45.4 1398 1698 3819 53.0 49.2 49.0

03/22 46.3 46.3 45.9 47.0 47.6 48.0 49.7 49.6 49.9 48.3 46.7 # 45.9 807 1687 3730 52.0 49.7 50.1

03/23 46.3 46.1 45.8 47.2 47.9 48.5 50.5 50.9 51.5 48.0 46.7 # 45.8 973 1681 3634 52.5 50.5 52.4

03/24 46.4 46.1 46.2 47.2 47.6 47.9 49.3 50.1 ? 50.8 46.7 46.9 # 44.7 2100 660 3525 45.5 45.5 47.5

03/25 46.3 46.5 46.9 47.5 47.7 48.0 49.1 49.4 49.9 46.6 47.1 # 44.2 1734 906 3422 47.0 46.6 48.0

03/26 46.4 45.9 46.9 47.6 48.0 48.6 49.2 # ? 49.8 46.5 47.2 # 44.4 2202 323 3322 47.0 46.3 46.9

03/27 46.4 45.9 46.4 47.3 47.4 47.9 48.7 # ? 49.6 45.8 46.7 # 43.9 2109 322 3316 45.0 45.0 46.5

03/28 46.2 45.7 46.2 46.6 46.5 46.7 47.1 # 48.0 45.3 ? 46.2 # 43.0 2343 238 3323 ↓ 44.5 45.0 45.7

03/29 46.6 46.0 46.1 46.5 46.7 46.9 46.9 # 46.4 46.0 ? 46.2 # 44.0 1951 467 3320 ↓ 42.0 44.0 44.2

03/30 46.3 46.1 46.1 46.3 47.0 47.6 48.1 47.6 ? 47.9 46.9 46.1 # 45.2 1947 491 3323 ↓ 46.0 45.8 47.1

03/31 46.2 45.9 46.2 46.3 47.0 47.8 50.3 # ? 50.6 47.4 45.1 # 45.4 2029 449 3312 51.5 50.5 50.9

Mar 1729 883 3597 46.9 48.3

53612 27381 111511

Legend Notes 106337 54309 221178

? = 1-9 hours of data missing (Average includes estimations) 1 Temperatures are weighted averages based on individual penstock flow and temperature

! = 10 or more hours of data missing (Average not calculated) Highlighted cells in the TCD column indicate a TCD change was made on that day

# = Station out of service 2 Current Sacramento River control point (see page 4 for more details)

↑ = Record high air temperature 3 DGC reporting incorrect water temperatures due to probe being buried in fine sediment

↓ = Record low air temperature

 = Monthly Averages

46.6 46.3 45.7 47.1 47.4 48.2

D

A

T

E

48.0 47.3

SAC CCR 2 TCD1 SHD SPP1 KWK

46.9 47.3 47.2 47.5 47.6 -

Mean Daily Air 

Temperatures (°F)

RDD

46.7

Total CFS

43.3 47.7

Mean Daily 

Release (CFS)

NFH

42.3

Mean Daily Water Temperatures (°F)

43.6

BND IGO

46.8

BSF

47.9

Total AF

47.0 45.4

RDB

48.3 46.5

LWS

45.1 41.1

DGC3

41.7

2
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

TCD N/A Shasta Power Plant N/A Sacramento SAC 55 06/15/2021 05/02/2022

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here Sacramento SAC 58 05/02/2022 06/07/2022

SPP N/A Spring Creek Power Plant N/A Sacramento SAC 54.5 06/07/2022 TBD

KWK Sacramento River 0.8 miles downstream of Keswick Dam Click Here

SAC Sacramento River 4.8 miles downstream of Keswick Dam Click Here

CCR Sacramento River 9.7 miles downstream of Keswick Dam Click Here

BSF Sacramento River 25 miles downstream of Keswick Dam Click Here

JLF Sacramento River 34 miles downstream of Keswick Dam Click Here

BND Sacramento River 41 miles downstream of Keswick Dam Click Here Notes

RDB Sacramento River 58 miles downstream of Keswick Dam Click Here

IGO Clear Creek 7.3 miles downstream of Whiskeytown Dam Click Here 1 Distances are approximate

Station Details Water Right Temperature Control Points

25

29

33

37

41

45

49

53

57

61

65

69

73

77

81

85

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Air Temperature (°F)

Water Temperature (°F)

Sacramento River Mean Daily Temperatures

Redding Air (Observed and Forecasted) TCD KWK SAC CCR BSF

3
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

LWS Trinity River 1.1 miles downstream of Lewiston Dam Click Here Trinity DGC2 56 Sep-15 Oct-01

DGC Trinity River 19 miles downstream of Lewiston Dam Click Here Trinity NFH 56 Oct-01 Dec-31

NFH Trinity River 38 miles downstream of Lewiston Dam Click Here

 Notes

1 Distances are approximate

2 DGC reporting incorrect water temperatures due to probe

being buried in fine sediment

Station Details Water Right Temperature Control Points

25

31

37

43

49

55

61

67

73

79

85

38

39

40

41

42

43

44

45

46

47

48

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Air Temperature (°F)

Water Temperature (°F)

Trinity River Mean Daily Temperatures

Redding Air (Observed and Forecasted) LWS DGC NFH

4
Updated 03/30/2023 at 1525

Latest Profile Date: 03/30/2023

Page Description

6 - Shasta Lake Isothermobaths Plot

7 - Shasta Lake Cold Water Pool Volume ≤52°F

8 - Shasta Lake Cold Water Pool Volume ≤50°F

9 - Shasta Lake Cold Water Pool Volume ≤48°F

10 - Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

11 - Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

12 - Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

13 - Shasta Lake Cold Water Pool Comparison by Year

Shasta Lake Isothermobaths & Cold Water Pool Statistics

2023

5
6

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
7

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
8

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
9

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
10

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
11

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
12

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
Mar-30

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

1998 -197 -710 -2094 1000 -5 -19 -57 27

1999 -92 -455 -1104 551 -2 -12 -30 15

2000 -592 -1059 -2445 1365 -16 -29 -66 37

2001 -644 -938 -1456 1013 -17 -25 -39 27

2002 3 -321 -1817 714 0 -9 -49 19

2003 -622 -1274 -2239 1379 -17 -34 -61 37

2004 -510 -640 -2358 1170 -14 -17 -64 32

2005 -964 -1410 -2427 1600 -26 -38 -66 43

2006 129 64 -1102 432 3 2 -30 12

2007 -538 -730 -1803 1024 -15 -20 -49 28

2008 -731 -1719 -2221 1557 -20 -47 -60 42

2009 -1428 -1652 -1963 1681 -39 -45 -53 46

2010 133 -887 -1790 937 4 -24 -48 25

2011 220 220 -1558 666 6 6 -42 18

2012 71 -838 -2217 1042 2 -23 -60 28

2013 -565 -971 -1797 1111 -15 -26 -49 30

2014 -1934 -2491 -2856 2427 -52 -67 -77 66

2015 -1869 -2222 -3073 2388 -51 -60 -83 65

2016 -348 -594 -2462 1135 -9 -16 -67 31

2017 145 -985 -1461 864 4 -27 -40 23

2018 -741 -1357 -2506 1535 -20 -37 -68 42

2019 225 -819 -1382 808 6 -22 -37 22

2020 -103 -1650 -2566 1440 -3 -45 -69 39

2021 -1960 -2361 -2769 2363 -53 -64 -75 64

2022 -2337 -2439 -2696 2490 -63 -66 -73 67

2023 0 0 0 0 0 0 0 0

∆ TAF % ∆

Shasta Lake Cold Water Pool Comparison by Year (for Specified Date)

Historic - Current (Historic - Current) / Current

13
Updated 03/23/2023 at 1435

Latest Profile Date: 03/22/2023

Page Description

15 - Trinity Lake Isothermobaths Plot

16 - Trinity Lake Cold Water Pool Volume ≤52°F

17 - Trinity Lake Cold Water Pool Volume ≤50°F

18 - Trinity Lake Cold Water Pool Volume ≤48°F

19 - Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

20 - Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

21 - Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

22 - Trinity Lake Cold Water Pool Comparison by Year

Trinity Lake Isothermobaths & Cold Water Pool Statistics

2023

14
15

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
16

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
17

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
18

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
19

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
20

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
21

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
Mar-22

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

2000 1218 1074 649 980 138 122 74 111

2001 780 734 667 727 89 83 76 83

2002 937 937 851 909 106 106 97 103

2003 1125 1103 632 953 128 125 72 108

2004 1092 1028 960 1027 124 117 109 117

2005 847 545 390 594 96 62 44 67

2006 1289 1289 1099 1226 146 146 125 139

2007 1015 960 698 891 115 109 79 101

2008 677 677 677 677 77 77 77 77

2009 264 223 104 197 30 25 12 22

2010 392 368 288 349 44 42 33 40

2011 1158 1158 1047 1121 131 131 119 127

2012 1076 1036 1012 1041 122 118 115 118

2013 1167 1064 836 1022 132 121 95 116

2014 390 382 -41 271 44 43 -5 31

2015 197 66 -27 96 22 7 -3 11

2016 318 318 295 310 36 36 34 35

2017 1128 1091 971 1063 128 124 110 121

2018 939 913 894 915 107 104 101 104

2019 1021 1021 912 985 116 116 104 112

2020 1091 1016 634 914 124 115 72 104

2021 403 403 403 403 46 46 46 46

2022 -149 -192 -247 196 -17 -22 -28 22

2023 0 0 0 0 0 0 0 0

Trinity Cold Water Pool Comparison by Year (for Specified Date)

∆ TAF % ∆

Historic - Current (Historic - Current) / Current

22
Updated 03/16/2023 at 1431

Latest Profile Date: 03/16/2023

Page Description

24 - Whiskeytown Lake Isothermobaths Plot

25 - Whiskeytown Lake Cold Water Pool Volume ≤60°F

26 - Whiskeytown Lake Cold Water Pool Volume ≤58°F

27 - Whiskeytown Lake Cold Water Pool Volume ≤56°F

28 - Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances

29 - Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances

30 - Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances

31 - Whiskeytown Lake Cold Water Pool Comparison by Year

Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

2023

23
24

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
25

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
26

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
27

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
28

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
29

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
30

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
Mar-16

2023 ≤60° ≤58° ≤56° Abs. Avg. ≤60° ≤58° ≤56° Abs. Avg.

2000 -17.9 -17.9 -22.2 19.3 -8.0 -8.0 -9.9 8.6

2001 -13.0 -16.6 -26.3 18.6 -5.8 -7.4 -11.8 8.3

2002 -18.8 -18.8 -18.8 18.8 -8.4 -8.4 -8.4 8.4

2003 -16.5 -16.5 -16.5 16.5 -7.4 -7.4 -7.4 7.4

2004 -15.4 -20.7 -29.3 21.8 -6.9 -9.2 -13.1 9.7

2005 -15.0 -15.0 -15.0 15.0 -6.7 -6.7 -6.7 6.7

2006 -17.9 -17.9 -17.9 17.9 -8.0 -8.0 -8.0 8.0

2007 -16.4 -16.4 -19.0 17.3 -7.3 -7.3 -8.5 7.7

2008 -13.2 -13.2 -13.2 13.2 -5.9 -5.9 -5.9 5.9

2009 -11.3 -11.3 -11.3 11.3 -5.0 -5.0 -5.0 5.0

2010 -11.6 -11.6 -11.6 11.6 -5.2 -5.2 -5.2 5.2

2011 -9.8 -9.8 -9.8 9.8 -4.4 -4.4 -4.4 4.4

2012 -44.5 -47.1 -52.2 47.9 -19.9 -21.0 -23.3 21.4

2013 -18.5 -18.5 -19.5 18.8 -8.2 -8.2 -8.7 8.4

2014 -11.9 -11.9 -13.5 12.4 -5.3 -5.3 -6.0 5.5

2015 -17.6 -17.6 -17.6 17.6 -7.8 -7.8 -7.8 7.8

2016 18.6 18.6 18.6 18.6 8.3 8.3 8.3 8.3

2017 -13.9 -13.9 -13.9 13.9 -6.2 -6.2 -6.2 6.2

2018 -17.3 -17.3 -17.3 17.3 -7.7 -7.7 -7.7 7.7

2019 0.4 0.4 0.4 0.4 0.2 0.2 0.2 0.2

2020 -16.2 -16.2 -22.6 18.4 -7.3 -7.3 -10.1 8.2

2021 -16.8 -16.8 -16.8 16.8 -7.5 -7.5 -7.5 7.5

2022 -12.1 -12.1 -12.1 12.1 -5.4 -5.4 -5.4 5.4

2023 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

∆ TAF % ∆

Whiskeytown Cold Water Pool Comparison by Year (for Specified Date)

Historic - Current (Historic - Current) / Current

31