Report Generated 07/02/2023 at 1146

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

June - 2023
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

May 9532 215 12119 66.0 66.6

06/01 50.6 48.7 50.8 50.4 51.0 51.8 55.0 57.8 ? 59.9 54.7 51.5 # 55.1 8249 37 10104 75.5 71.6 71.0

06/02 50.4 48.7 50.4 50.3 50.8 51.6 54.4 56.9 58.8 54.7 51.3 # 54.9 8271 37 10134 74.5 71.8 71.7

06/03 50.2 48.7 50.5 50.1 50.7 51.4 54.2 56.7 ? 58.5 55.1 51.4 # 55.9 8897 37 10059 79.0 76.2 74.8

06/04 50.4 48.7 50.1 50.2 50.8 51.6 54.5 57.2 ? 58.9 55.5 51.8 # 56.8 8104 166 10006 83.0 80.0 78.7

06/05 50.6 ? 48.8 51.0 50.2 50.6 51.2 53.8 56.6 58.8 54.2 51.7 # 56.6 8182 14 10054 83.0 76.3 79.8

06/06 50.7 48.9 51.1 50.1 50.7 51.4 53.8 55.8 57.4 55.3 51.8 # 56.6 7639 24 9111 73.5 69.2 68.9

06/07 50.7 48.9 50.7 50.3 51.0 51.7 54.7 57.0 58.7 55.2 52.3 # 56.3 7795 39 9048 73.5 69.4 68.2

06/08 50.2 48.6 50.6 50.4 51.1 51.9 55.1 57.5 59.6 55.3 52.5 # 57.7 7319 37 9070 75.5 71.5 70.9

06/09 50.7 48.9 50.6 50.3 51.0 51.9 55.1 57.7 59.7 56.4 53.0 # 57.4 7416 37 9036 76.5 72.7 71.7

06/10 50.8 ? 48.7 50.7 51.0 51.6 52.3 55.0 57.4 59.6 55.5 53.0 # 57.5 6935 37 9052 78.0 72.5 73.0

06/11 50.3 ? 48.9 50.7 50.8 51.5 52.4 55.3 57.8 59.8 56.1 53.2 # 58.9 7791 37 9057 79.5 74.7 75.8

06/12 50.5 ? 49.0 50.5 50.7 51.4 52.4 55.7 58.1 60.1 56.1 53.6 # 59.6 7787 57 9076 75.5 71.6 70.9

06/13 50.9 ? 49.2 50.7 50.7 51.5 52.3 55.6 58.3 60.6 55.9 54.1 # 60.0 7256 46 8982 78.5 74.0 73.3

06/14 51.0 49.3 50.8 51.0 51.6 52.4 55.4 58.1 60.3 55.5 54.4 # 60.1 7713 37 8999 81.0 77.9 77.0

06/15 50.6 ? 48.8 50.7 51.0 51.7 52.6 55.4 57.9 59.8 54.5 54.8 # 60.4 7890 38 8962 83.5 78.0 79.8

06/16 50.4 ? 49.2 50.8 50.8 51.6 52.5 55.5 57.9 59.9 53.0 55.0 # 61.1 9018 37 8992 87.5 82.8 84.5

06/17 50.8 ? 49.0 50.8 50.7 51.4 52.2 55.2 57.8 60.1 52.1 55.3 # 61.7 8891 37 8992 80.5 75.5 76.0

06/18 50.8 ? 48.6 51.0 51.0 51.7 52.5 55.0 57.5 59.6 51.8 55.5 # 60.6 7140 37 8970 76.0 73.8 76.4

06/19 50.7 ? 49.3 50.9 50.8 51.4 52.1 54.5 56.5 ? 58.3 51.1 55.5 # 58.5 8845 37 8991 66.5 64.3 63.5

06/20 50.5 49.3 50.9 50.7 51.2 51.9 54.0 55.6 57.1 51.6 55.9 # 57.7 8675 37 8994 ↓ 65.5 63.3 62.6

06/21 51.1 49.4 51.1 50.9 51.5 52.3 54.5 56.1 57.7 52.6 55.1 # 59.1 6667 37 8992 71.5 68.9 69.2

06/22 50.7 49.2 51.1 50.9 51.3 51.8 54.1 56.0 57.8 52.7 54.1 # 60.2 7585 37 8997 71.0 66.3 65.9

06/23 51.3 49.6 51.0 50.9 51.5 52.2 54.4 56.1 57.5 53.8 54.5 # 60.1 9007 51 9499 70.5 66.8 66.1

06/24 50.9 49.6 51.2 51.1 51.6 52.2 54.4 56.5 ? 58.4 54.1 53.8 # 60.4 9079 37 9496 72.5 67.4 68.1

06/25 51.2 49.7 51.2 51.2 51.8 52.5 54.7 56.6 58.4 54.5 53.6 # 60.5 9382 37 9498 75.0 69.5 68.8

06/26 51.3 49.8 51.3 51.3 51.9 52.6 54.9 57.0 58.9 54.8 53.9 # 61.4 9275 37 97 76.5 71.2 70.4

06/27 50.5 49.2 51.0 51.6 52.2 53.0 55.4 57.5 59.4 55.3 53.9 # 62.6 8361 592 9494 79.5 76.0 74.3

06/28 49.8 48.8 51.0 51.7 52.3 53.2 55.8 58.1 60.1 55.6 54.0 # 62.8 8277 510 9493 83.5 80.4 79.0

06/29 49.6 ? 48.4 51.0 ? 51.1 51.9 ? 52.9 ? 55.6 58.1 ? 60.4 ? 55.9 ? 53.7 # 63.8 9009 500 9247 ? 86.0 83.4 83.5

06/30 49.8 ? 48.3 51.0 50.5 51.2 52.1 54.7 57.3 ? 59.7 56.5 53.3 # 65.2 8749 507 9560 88.5 86.2 86.1

-

Jun 8173 107 9002 77.4 73.4 73.3

245204 3210 270062

Legend Notes 486352 6367 535657

? = 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 Clear Creek River control point (see page 4 for more details)

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

↓ = Record low air temperature

 = Monthly Averages

50.6 49.0 50.8 51.4 54.9

D

A

T

E

51.1 49.7

CCR2 TCD SAC 1 SHD SPP1 KWK

49.5 50.9 51.2 51.7 53.8 55.5

Mean Daily Air 

Temperatures (°F)

RDD

69.1

Total CFS

59.3

Mean Daily 

Release (CFS)

NFH

51.7

Mean Daily Water Temperatures (°F)

48.8

BND IGO

50.8

BSF

52.2 57.2

Total AF

55.3 52.9

RDB

59.1 54.5

LWS

53.6 -

DGC3

-

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 54.5 06/07/2022 5/14/2023

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here Sacramento CCR 53.5 05/14/2023 TBD

SPP N/A Spring Creek Power Plant N/A

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

40

48

56

64

72

80

88

96

104

112

120

40

42

44

46

48

50

52

54

56

58

60

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

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

46

50

54

58

62

66

70

74

78

82

86

90

94

98

102

106

110

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

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

Air Temperature (°F)

Water Temperature (°F)

Trinity River Mean Daily Temperatures

Redding Air (Observed and Forecasted) LWS DGC NFH

4
Updated 06/29/2023 at 1012

Latest Profile Date: 06/27/2023

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
Jun-27

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

1998 -756 -1077 -1362 1065 -28 -44 -65 46

1999 -601 -634 -571 602 -23 -26 -27 25

2000 -1074 -1233 -1498 1268 -40 -50 -72 54

2001 -1083 -1030 -934 1016 -41 -42 -45 43

2002 -784 -800 -941 842 -29 -33 -45 36

2003 -1031 -1444 -1658 1377 -39 -59 -79 59

2004 -1220 -1261 -1211 1231 -46 -52 -58 52

2005 -1090 -1204 -1477 1257 -41 -49 -71 54

2006 -631 -771 -992 798 -24 -32 -48 34

2007 -1060 -1009 -993 1021 -40 -41 -48 43

2008 -1515 -1402 -1201 1373 -57 -57 -58 57

2009 -1365 -1344 -1171 1293 -51 -55 -56 54

2010 -449 -716 -1001 722 -17 -29 -48 31

2011 -321 -518 -589 476 -12 -21 -28 20

2012 -325 -394 -817 512 -12 -16 -39 22

2013 -1121 -1079 -1082 1094 -42 -44 -52 46

2014 -1771 -1681 -1584 1679 -66 -69 -76 70

2015 -1691 -1658 -1902 1750 -63 -68 -91 74

2016 -477 -577 -1277 777 -18 -24 -61 34

2017 -520 -787 -993 767 -20 -32 -48 33

2018 -721 -892 -1409 1007 -27 -36 -67 44

2019 -349 -536 -839 575 -13 -22 -40 25

2020 -1062 -1185 -1474 1240 -40 -48 -71 53

2021 -1750 -1651 -1547 1649 -66 -68 -74 69

2022 -1887 -1768 -1530 1728 -71 -72 -73 72

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 06/15/2023 at 1623

Latest Profile Date: 06/15/2023

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
Jun-15

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

2000 406 394 397 399 44 49 63 52

2001 316 308 331 318 34 38 52 42

2002 238 287 321 282 26 36 51 37

2003 675 513 432 540 72 64 68 68

2004 366 366 304 346 39 46 48 44

2005 412 298 131 280 44 37 21 34

2006 842 825 734 800 90 103 116 103

2007 249 284 366 300 27 35 58 40

2008 42 39 -14 31 4 5 -2 4

2009 -164 -167 -158 163 -18 -21 -25 21

2010 174 159 47 127 19 20 8 15

2011 657 655 611 641 71 82 97 83

2012 619 667 663 650 66 83 105 85

2013 193 231 222 215 21 29 35 28

2014 -304 -217 -114 212 -33 -27 -18 26

2015 -400 -339 -247 329 -43 -42 -39 41

2016 -138 -129 -67 111 -15 -16 -11 14

2017 475 423 422 440 51 53 67 57

2018 315 369 394 359 34 46 62 47

2019 706 736 702 715 76 92 111 93

2020 251 267 226 248 27 33 36 32

2021 -260 -181 -108 183 -28 -23 -17 22

2022 -563 -481 -387 477 -60 -60 -61 60

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 06/13/2023 at 1505

Latest Profile Date: 06/13/2023

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
Jun-13

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

2000 21.1 -5.0 -9.0 11.7 14.2 -3.7 -7.3 8.4

2001 -13.4 -10.3 -12.4 12.0 -9.1 -7.5 -10.2 8.9

2002 -1.4 -2.3 -3.3 2.4 -1.0 -1.7 -2.7 1.8

2003 19.2 17.6 12.2 16.3 12.9 12.9 10.0 11.9

2004 -5.2 0.9 7.2 4.4 -3.5 0.7 5.9 3.4

2005 -32.5 -24.4 -25.6 27.5 -21.9 -17.9 -21.0 20.3

2006 18.7 26.3 29.7 24.9 12.6 19.3 24.4 18.7

2007 -9.9 -1.8 -3.5 5.0 -6.6 -1.3 -2.9 3.6

2008 -6.5 -0.9 -6.3 4.6 -4.4 -0.6 -5.2 3.4

2009 -14.2 -24.3 -32.7 23.7 -9.6 -17.8 -26.8 18.0

2010 45.2 46.2 -16.9 36.1 30.5 33.8 -13.9 26.1

2011 76.5 22.5 -20.0 39.7 51.6 16.5 -16.4 28.1

2012 -14.7 -10.1 -9.6 11.5 -9.9 -7.4 -7.8 8.4

2013 -2.8 -0.1 7.3 3.4 -1.9 0.0 6.0 2.6

2014 -19.7 -22.9 -36.0 26.2 -13.3 -16.7 -29.5 19.8

2015 -8.4 -20.8 -34.3 21.2 -5.7 -15.2 -28.1 16.3

2016 -25.0 -25.3 -29.9 26.7 -16.9 -18.5 -24.5 20.0

2017 12.6 17.3 20.5 16.8 8.5 12.7 16.8 12.7

2018 -9.1 -5.5 -8.1 7.6 -6.1 -4.0 -6.6 5.6

2019 -4.5 -4.1 -13.3 7.3 -3.0 -3.0 -10.9 5.6

2020 -31.8 -29.0 -22.8 27.9 -21.5 -21.2 -18.7 20.5

2021 -37.5 -34.1 -27.3 32.9 -25.3 -24.9 -22.3 24.2

2022 -37.2 -38.7 -42.1 39.4 -25.1 -28.3 -34.5 29.3

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