Country: USA
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Dry Reservoir water level history

Daily records since 1996 · Level today: 307.49 ft

Highest on record
358.89 ft
May 18, 2006
Lowest on record
301.23 ft
Sep 9, 1999
Today
307.49 ft
Oct 23, 2026
Years of data
30
since 1996

In short

Across 28 complete years, 2002 had the lowest average level (307.03 ft) and 2017 the highest (311.17 ft).

On average the lake is lowest in September (306.52 ft) and highest in April (313.67 ft).

Dry Reservoir level, all years

Loading chart…

Measured Normal range for the date (middle 50% of past years)

Each year's lowest and highest level

2983143303463621996200020042008201220162020202420261996: lowest 308.69 ft (1996-12-31), highest 308.69 ft (1996-12-31), average 308.69 ft, 1 days measured1997: lowest 305.43 ft (1997-08-04), highest 332.89 ft (1997-04-20), average 308.34 ft, 364 days measured1998: lowest 304.99 ft (1998-11-10), highest 339.06 ft (1998-06-20), average 308.36 ft, 327 days measured1999: lowest 301.23 ft (1999-09-09), highest 334.44 ft (1999-09-18), average 307.28 ft, 365 days measured2000: lowest 302.20 ft (2000-09-14), highest 338.52 ft (2000-04-11), average 307.85 ft, 359 days measured2001: lowest 305.21 ft (2001-11-17), highest 332.32 ft (2001-04-25), average 307.03 ft, 365 days measured2002: lowest 303.79 ft (2002-09-22), highest 332.92 ft (2002-04-15), average 307.03 ft, 359 days measured2003: lowest 305.19 ft (2003-09-19), highest 331.28 ft (2003-12-19), average 308.55 ft, 365 days measured2004: lowest 306.04 ft (2004-07-28), highest 327.10 ft (2004-04-04), average 307.64 ft, 366 days measured2005: lowest 306.26 ft (2005-09-14), highest 341.51 ft (2005-10-18), average 309.94 ft, 365 days measured2006: lowest 304.82 ft (2006-10-11), highest 358.89 ft (2006-05-18), average 309.45 ft, 365 days measured2007: lowest 302.27 ft (2007-10-06), highest 339.39 ft (2007-04-20), average 307.90 ft, 365 days measured2008: lowest 303.01 ft (2008-09-25), highest 337.48 ft (2008-05-01), average 309.19 ft, 366 days measured2009: lowest 306.09 ft (2009-09-03), highest 324.12 ft (2009-04-05), average 308.23 ft, 365 days measured2010: lowest 305.46 ft (2010-01-25), highest 325.31 ft (2010-04-01), average 308.32 ft, 365 days measured2011: lowest 306.12 ft (2011-07-22), highest 350.33 ft (2011-08-30), average 309.25 ft, 365 days measured2012: lowest 306.00 ft (2012-08-03), highest 324.32 ft (2012-10-31), average 308.18 ft, 366 days measured2013: lowest 306.11 ft (2013-10-30), highest 316.47 ft (2013-07-03), average 307.41 ft, 365 days measured2014: lowest 302.47 ft (2014-09-24), highest 342.43 ft (2014-04-17), average 308.06 ft, 365 days measured2015: lowest 305.69 ft (2015-09-03), highest 320.17 ft (2015-04-22), average 307.73 ft, 365 days measured2016: lowest 305.85 ft (2016-09-21), highest 325.55 ft (2016-02-26), average 307.75 ft, 366 days measured2017: lowest 305.81 ft (2017-10-18), highest 345.94 ft (2017-10-31), average 311.17 ft, 365 days measured2018: lowest 305.34 ft (2018-06-18), highest 336.71 ft (2018-12-23), average 308.73 ft, 365 days measured2019: lowest 305.87 ft (2019-10-03), highest 348.89 ft (2019-04-23), average 309.90 ft, 365 days measured2020: lowest 305.73 ft (2020-08-12), highest 335.84 ft (2020-12-27), average 308.31 ft, 366 days measured2021: lowest 306.91 ft (2021-06-30), highest 322.63 ft (2021-11-01), average 309.23 ft, 365 days measured2022: lowest 306.45 ft (2022-11-10), highest 335.80 ft (2022-12-25), average 309.14 ft, 365 days measured2023: lowest 305.53 ft (2023-09-08), highest 358.55 ft (2023-12-20), average 310.45 ft, 365 days measured2024: lowest 306.25 ft (2024-09-25), highest 343.71 ft (2024-04-14), average 308.42 ft, 366 days measured2025: lowest 306.44 ft (2025-02-11), highest 333.58 ft (2025-03-18), average 308.25 ft, 365 days measured2026: lowest 306.47 ft (2026-02-27), highest 327.31 ft (2026-05-16), average 308.25 ft, 293 days measured
298314330346362199620042012202020261996: lowest 308.69 ft (1996-12-31), highest 308.69 ft (1996-12-31), average 308.69 ft, 1 days measured1997: lowest 305.43 ft (1997-08-04), highest 332.89 ft (1997-04-20), average 308.34 ft, 364 days measured1998: lowest 304.99 ft (1998-11-10), highest 339.06 ft (1998-06-20), average 308.36 ft, 327 days measured1999: lowest 301.23 ft (1999-09-09), highest 334.44 ft (1999-09-18), average 307.28 ft, 365 days measured2000: lowest 302.20 ft (2000-09-14), highest 338.52 ft (2000-04-11), average 307.85 ft, 359 days measured2001: lowest 305.21 ft (2001-11-17), highest 332.32 ft (2001-04-25), average 307.03 ft, 365 days measured2002: lowest 303.79 ft (2002-09-22), highest 332.92 ft (2002-04-15), average 307.03 ft, 359 days measured2003: lowest 305.19 ft (2003-09-19), highest 331.28 ft (2003-12-19), average 308.55 ft, 365 days measured2004: lowest 306.04 ft (2004-07-28), highest 327.10 ft (2004-04-04), average 307.64 ft, 366 days measured2005: lowest 306.26 ft (2005-09-14), highest 341.51 ft (2005-10-18), average 309.94 ft, 365 days measured2006: lowest 304.82 ft (2006-10-11), highest 358.89 ft (2006-05-18), average 309.45 ft, 365 days measured2007: lowest 302.27 ft (2007-10-06), highest 339.39 ft (2007-04-20), average 307.90 ft, 365 days measured2008: lowest 303.01 ft (2008-09-25), highest 337.48 ft (2008-05-01), average 309.19 ft, 366 days measured2009: lowest 306.09 ft (2009-09-03), highest 324.12 ft (2009-04-05), average 308.23 ft, 365 days measured2010: lowest 305.46 ft (2010-01-25), highest 325.31 ft (2010-04-01), average 308.32 ft, 365 days measured2011: lowest 306.12 ft (2011-07-22), highest 350.33 ft (2011-08-30), average 309.25 ft, 365 days measured2012: lowest 306.00 ft (2012-08-03), highest 324.32 ft (2012-10-31), average 308.18 ft, 366 days measured2013: lowest 306.11 ft (2013-10-30), highest 316.47 ft (2013-07-03), average 307.41 ft, 365 days measured2014: lowest 302.47 ft (2014-09-24), highest 342.43 ft (2014-04-17), average 308.06 ft, 365 days measured2015: lowest 305.69 ft (2015-09-03), highest 320.17 ft (2015-04-22), average 307.73 ft, 365 days measured2016: lowest 305.85 ft (2016-09-21), highest 325.55 ft (2016-02-26), average 307.75 ft, 366 days measured2017: lowest 305.81 ft (2017-10-18), highest 345.94 ft (2017-10-31), average 311.17 ft, 365 days measured2018: lowest 305.34 ft (2018-06-18), highest 336.71 ft (2018-12-23), average 308.73 ft, 365 days measured2019: lowest 305.87 ft (2019-10-03), highest 348.89 ft (2019-04-23), average 309.90 ft, 365 days measured2020: lowest 305.73 ft (2020-08-12), highest 335.84 ft (2020-12-27), average 308.31 ft, 366 days measured2021: lowest 306.91 ft (2021-06-30), highest 322.63 ft (2021-11-01), average 309.23 ft, 365 days measured2022: lowest 306.45 ft (2022-11-10), highest 335.80 ft (2022-12-25), average 309.14 ft, 365 days measured2023: lowest 305.53 ft (2023-09-08), highest 358.55 ft (2023-12-20), average 310.45 ft, 365 days measured2024: lowest 306.25 ft (2024-09-25), highest 343.71 ft (2024-04-14), average 308.42 ft, 366 days measured2025: lowest 306.44 ft (2025-02-11), highest 333.58 ft (2025-03-18), average 308.25 ft, 365 days measured2026: lowest 306.47 ft (2026-02-27), highest 327.31 ft (2026-05-16), average 308.25 ft, 293 days measured
Lowest to highest that yearYear average2026 so far

One bar per year from the lowest to the highest daily level, with the year's average. Years with no bar have no daily record in the agency archive.

Lowest years

Years ranked by their lowest daily level.

  • 1999301.23 ft on Sep 9
  • 2000302.20 ft on Sep 14
  • 2007302.27 ft on Oct 6
  • 2014302.47 ft on Sep 24
  • 2008303.01 ft on Sep 25

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (293 days)308.25306.47Feb 27327.31May 16
2025308.25306.44Feb 11333.58Mar 18
2024308.42306.25Sep 25343.71Apr 14
2023310.45305.53Sep 8358.55Dec 20
2022309.14306.45Nov 10335.80Dec 25
2021309.23306.91Jun 30322.63Nov 1
2020308.31305.73Aug 12335.84Dec 27
2019309.90305.87Oct 3348.89Apr 23
2018308.73305.34Jun 18336.71Dec 23
2017311.17305.81Oct 18345.94Oct 31
2016307.75305.85Sep 21325.55Feb 26
2015307.73305.69Sep 3320.17Apr 22
2014308.06302.47Sep 24342.43Apr 17
2013307.41306.11Oct 30316.47Jul 3
2012308.18306.00Aug 3324.32Oct 31
2011309.25306.12Jul 22350.33Aug 30
2010308.32305.46Jan 25325.31Apr 1
2009308.23306.09Sep 3324.12Apr 5
2008309.19303.01Sep 25337.48May 1
2007307.90302.27Oct 6339.39Apr 20
2006309.45304.82Oct 11358.89May 18
2005309.94306.26Sep 14341.51Oct 18
2004307.64306.04Jul 28327.10Apr 4
2003308.55305.19Sep 19331.28Dec 19
2002307.03303.79Sep 22332.92Apr 15
2001307.03305.21Nov 17332.32Apr 25
2000307.85302.20Sep 14338.52Apr 11
1999307.28301.23Sep 9334.44Sep 18
1998 (327 days)308.36304.99Nov 10339.06Jun 20
1997308.34305.43Aug 4332.89Apr 20
1996 (1 days)308.69308.69Dec 31308.69Dec 31

Levels in feet. Partial years show the number of days with data.

Monthly averages

MonthAverageLowestHighest
January307.70305.46336.08
February307.10305.50325.55
March309.03305.25336.29
April313.67305.41348.89
May310.50305.74358.89
June307.92305.34339.06
July307.55305.30332.79
August307.01302.21350.33
September306.52301.23334.44
October307.82302.27345.94
November308.23304.99345.84
December309.04305.51358.55

Download

Daily levels as CSV (10,834 rows; credit the original agencies listed below)