Report Generated 12/03/2023 at 1837

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

November - 2023
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Oct 5719 511 6313 60.6 63.3

11/01 49.6 48.3 56.7 49.1 49.2 49.7 50.4 ? 50.5 50.6 54.1 47.8 47.1 48.2 5284 505 6041 58.5 50.6 54.0

11/02 49.5 48.3 56.7 49.9 49.8 49.9 50.2 ? 50.2 50.6 53.9 47.8 48.0 49.0 5518 463 5797 56.0 51.4 55.4

11/03 49.3 48.0 56.6 50.1 50.3 50.8 51.2 51.3 51.4 54.9 47.9 49.4 51.2 4872 491 5597 64.5 58.8 62.8

11/04 49.1 48.0 56.4 50.1 50.1 50.6 51.7 ? 52.4 52.8 54.8 47.8 50.7 52.6 5132 516 5491 63.0 60.3 61.5

11/05 49.2 47.8 56.3 49.9 50.3 50.9 51.6 ? 52.2 52.7 54.6 47.9 50.1 52.8 4509 502 5200 60.5 59.1 61.2

11/06 49.3 48.3 56.5 50.0 50.2 50.9 52.4 53.6 54.4 54.9 48.1 50.2 52.6 4711 526 5023 60.5 58.8 60.7

11/07 49.2 48.3 56.5 50.2 50.2 50.7 51.5 52.0 52.9 53.7 48.0 49.0 51.1 4227 519 4992 55.0 52.0 54.5

11/08 49.5 48.3 56.6 50.2 50.2 50.6 51.1 ? 51.3 51.8 53.4 48.0 48.1 49.8 4567 364 5005 56.0 51.3 53.7

11/09 49.3 48.1 56.4 49.6 49.5 49.8 50.4 ? 50.4 50.9 53.2 48.0 46.7 47.9 4328 561 4328 49.5 44.6 48.7

11/10 49.4 48.5 56.2 50.0 50.0 50.4 50.7 50.7 50.7 53.9 48.2 47.4 48.6 4568 501 4991 57.5 51.3 52.6

11/11 49.7 ? 49.0 56.2 49.8 49.8 50.3 50.9 ? 51.0 51.3 53.8 48.3 48.2 49.1 4660 528 4992 56.5 50.3 53.6

11/12 49.1 48.1 55.9 49.9 49.9 50.2 50.7 ? 50.8 51.2 53.6 48.2 48.0 49.0 4500 512 4995 54.0 49.8 52.0

11/13 49.0 48.1 55.9 49.9 50.1 50.6 51.1 ? 51.2 51.4 53.7 48.1 48.4 49.4 4528 493 4995 57.5 52.4 53.9

11/14 49.2 ? 47.7 55.9 49.9 49.7 49.9 50.6 50.9 51.2 53.5 48.1 47.9 49.4 4359 463 4998 52.5 49.1 50.0

11/15 49.5 48.2 55.9 49.8 50.0 50.4 50.9 50.9 50.9 54.1 48.3 48.5 49.8 4852 497 4989 59.0 54.5 55.2

11/16 49.7 48.2 56.3 49.6 49.8 50.5 51.6 ? 52.2 52.4 54.4 48.4 49.8 50.9 5116 40 4998 59.5 55.5 57.0

11/17 49.8 48.4 55.7 49.7 49.8 50.4 51.1 51.5 52.2 54.1 48.3 49.4 51.2 5041 37 4992 59.0 53.6 56.5

11/18 49.4 48.1 55.9 49.5 49.6 50.2 51.3 ? 52.1 52.3 54.1 48.4 49.7 51.0 4534 418 4992 53.5 55.1 56.1

11/19 50.1 48.5 56.0 50.0 49.8 50.0 ? 50.6 50.8 51.3 52.7 48.0 47.5 48.5 5078 41 5011 50.0 47.9 50.7

11/20 50.2 48.5 55.6 49.4 49.4 49.8 50.2 ? 50.1 50.4 52.7 48.0 46.1 46.8 4714 48 4994 61.5 55.1 55.6

11/21 49.9 48.4 55.6 49.4 49.2 49.5 49.7 ? 49.7 50.0 52.7 48.0 45.6 46.0 4874 44 5005 55.0 47.4 49.5

11/22 ? 49.8 ? 48.2 ? 55.5 ? 49.6 ? 49.6 ? 49.6 ? 49.6 ? 49.4 ? 49.5 ? 53.0 ? 48.0 ? 45.7 ? 45.6 4896 37 5006 ? 51.5 46.5 52.0

11/23 ? 49.5 48.4 55.4 49.5 49.4 49.9 50.2 ? 50.1 50.0 53.2 47.8 46.1 46.3 4856 56 5003 56.0 55.3 56.9

11/24 50.0 48.5 55.3 49.3 49.1 49.1 49.0 ? 48.8 49.1 52.1 47.2 44.3 45.0 4722 53 5009 54.5 51.6 52.2

11/25 49.9 48.4 55.5 49.2 ? 49.0 49.1 49.0 48.3 48.3 52.0 46.8 42.5 43.0 5351 37 5004 50.0 44.0 46.8

11/26 49.7 48.1 55.2 49.1 48.9 48.9 48.7 ? 48.0 48.1 51.6 46.7 41.7 41.7 4947 48 5030 47.5 40.8 45.0

11/27 50.3 48.5 55.3 49.0 48.8 48.8 48.5 ? 47.8 47.8 51.2 46.4 41.4 41.0 4741 37 5119 ↓ 44.5 38.8 42.0

11/28 50.0 48.3 55.0 49.0 48.8 48.8 48.4 ? 47.6 47.6 51.3 46.0 41.5 41.0 4775 44 5098 46.0 39.5 43.8

11/29 49.8 48.5 54.6 49.3 49.1 49.1 48.8 ? 48.2 48.0 51.5 45.8 43.1 42.6 4685 112 5089 49.0 42.8 47.5

11/30 49.8 48.5 55.2 49.3 49.1 49.1 48.9 ? 48.4 48.3 51.3 45.5 43.0 43.1 4567 37 5099 45.5 42.4 44.8

-

Nov 4784 284 5096 54.8 50.4 52.9

143512 8530 152883

Legend Notes 284650 16919 303237

? = 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 3 for more details)

↑ = Record high air temperature

↓ = Record low air temperature

 = Monthly Averages

49.6 48.3 55.9 49.6 50.4

D

A

T

E

48.7 47.7

CCR2 TCD SAC 1 SHD SPP1 KWK

57.7 49.7 50.0 50.7 51.9 52.8

Mean Daily Air 

Temperatures (°F)

RDD

66.1

Total CFS

47.8

Mean Daily 

Release (CFS)

NFH

54.4

Mean Daily Water Temperatures (°F)

49.4

BND IGO

49.6

BSF

49.9 50.4

Total AF

53.7 54.4

RDB

50.7 53.3

LWS

47.7 46.8

DGC

51.6

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

25

31

37

43

49

55

61

67

73

79

85

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 DGC 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

Station Details Water Right Temperature Control Points

25

29

33

37

41

45

49

53

57

61

65

69

73

77

81

85

40

43

46

49

52

55

58

61

64

67

70

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 11/15/2023 at 1403

Latest Profile Date: 11/15/2023

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
Nov-15

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

1998 -701 -708 -585 665 -80 -94 -99 91

1999 -514 -446 -363 441 -59 -59 -62 60

2000 -676 -658 -563 632 -77 -88 -96 87

2001 -784 -681 -543 669 -89 -91 -92 91

2002 -650 -581 -498 576 -74 -77 -85 79

2003 -616 -651 -568 612 -70 -87 -97 84

2004 -806 -707 -566 693 -92 -94 -96 94

2005 -796 -699 -563 686 -91 -93 -96 93

2006 -598 -533 -466 532 -68 -71 -79 73

2007 -836 -716 -561 704 -95 -95 -95 95

2008 -839 -721 -568 709 -95 -96 -97 96

2009 -817 -699 -556 691 -93 -93 -95 94

2010 -472 -513 -480 488 -54 -68 -82 68

2011 -350 -334 -275 320 -40 -44 -47 44

2012 -589 -511 -448 516 -67 -68 -76 70

2013 -776 -671 -534 660 -88 -89 -91 89

2014 -832 -728 -581 714 -95 -97 -99 97

2015 -820 -707 -584 703 -93 -94 -99 96

2016 -506 -442 -438 462 -58 -59 -74 64

2017 -456 -427 -347 410 -52 -57 -59 56

2018 -738 -661 -566 655 -84 -88 -96 89

2019 -332 -310 -268 303 -38 -41 -46 42

2020 -783 -701 -577 687 -89 -93 -98 94

2021 -855 -733 -588 725 -97 -98 -100 98

2022 -820 -708 -565 698 -93 -94 -96 95

2023 0 0 0 0 0 0 0 0

∆ TAF % ∆

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

Historical - Current (Historical - Current) / Current

13
Updated 11/09/2023 at 1304

Latest Profile Date: 11/09/2023

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
Nov-09

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

2000 140 81 -4 75 23 18 -1 14

2001 -69 -16 -5 30 -12 -3 -2 6

2002 -32 21 50 34 -5 5 16 9

2003 118 33 -53 68 20 7 -17 15

2004 -84 -72 -97 84 -14 -16 -32 20

2005 229 188 25 147 38 41 8 29

2006 751 240 199 397 126 53 65 81

2007 45 111 141 99 7 24 46 26

2008 -314 -254 -176 248 -53 -56 -57 55

2009 -257 -198 -164 206 -43 -44 -54 47

2010 128 105 11 81 21 23 3 16

2011 461 390 261 371 77 86 85 83

2012 286 358 377 341 48 79 123 83

2013 -137 -86 -59 94 -23 -19 -19 20

2014 -482 -362 -247 364 -81 -80 -80 80

2015 -518 -404 -286 403 -87 -89 -93 90

2016 -269 -228 -146 214 -45 -50 -47 48

2017 229 161 100 163 38 35 32 35

2018 215 268 271 251 36 59 88 61

2019 460 498 461 473 77 110 150 112

2020 24 79 43 49 4 17 14 12

2021 -448 -332 -219 333 -75 -73 -71 73

2022 -432 -323 -204 320 -72 -71 -67 70

2023 0 0 0 0 0 0 0 0

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

∆ TAF % ∆

Historical - Current (Historical - Current) / Current

22
Updated 11/16/2023 at 1310

Latest Profile Date: 11/16/2023

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
Nov-16

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

2000 -60.0 -61.4 102.5 74.6 -26.6 -27.3 184.3 79.4

2001 -28.8 -27.8 140.1 65.6 -12.7 -12.4 251.8 92.3

2002 -37.4 -38.2 125.4 67.0 -16.6 -17.0 225.4 86.3

2003 -1.3 0.0 73.9 25.1 -0.6 0.0 132.8 44.5

2004 0.0 1.3 170.4 57.3 0.0 0.6 306.4 102.3

2005 -19.8 -18.5 14.8 17.7 -8.7 -8.2 26.7 14.5

2006 -42.7 -42.3 125.1 70.0 -18.9 -18.8 224.9 87.5

2007 -20.6 -19.3 37.5 25.8 -9.1 -8.6 67.5 28.4

2008 -25.3 -24.4 144.1 64.6 -11.2 -10.8 259.1 93.7

2009 -46.2 -50.4 94.0 63.5 -20.4 -22.4 168.9 70.6

2010 -14.2 -119.3 39.6 57.7 -6.3 -53.1 71.2 43.5

2011 -20.2 -19.0 150.2 63.1 -9.0 -8.4 269.9 95.8

2012 -20.9 -120.9 30.8 57.6 -9.3 -53.8 55.4 39.5

2013 -2.7 -66.3 96.8 55.2 -1.2 -29.5 174.0 68.2

2014 -53.2 -67.9 71.0 64.0 -23.5 -30.2 127.6 60.4

2015 -21.2 -180.1 -26.4 75.9 -9.4 -80.1 -47.5 45.7

2016 -13.8 -132.9 20.6 55.8 -6.1 -59.1 37.0 34.1

2017 -17.2 -59.3 104.8 60.4 -7.6 -26.4 188.3 74.1

2018 -9.6 -8.3 -37.4 18.4 -4.2 -3.7 -67.2 25.0

2019 -20.4 -19.2 25.2 21.6 -9.0 -8.5 45.4 21.0

2020 -29.6 -29.6 136.7 65.3 -13.1 -13.2 245.8 90.7

2021 -18.6 -24.7 141.4 61.6 -8.2 -11.0 254.3 91.1

2022 -147.2 -152.8 15.5 105.2 -65.1 -68.0 27.9 53.7

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)

Historical - Current (Historical - Current) / Current

31