Country: USA
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El Capitan Reservoir water level history

Daily records since 1988 · Level today: 638.17 ft

Highest on record
750.27 ft
Mar 29, 1993
Lowest on record
637.90 ft
Oct 8, 2026
Today
638.17 ft
Oct 23, 2026
Years of data
38
since 1988

In short

Across 22 complete years, 2016 had the lowest average level (667.99 ft) and 2011 the highest (734.76 ft).

On average the lake is lowest in December (688.90 ft) and highest in April (698.96 ft).

El Capitan Reservoir level, all years

Loading chart…

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

Each year's lowest and highest level

6316636947267571988199319982003200820132018202320261988: lowest 683.36 ft (1988-10-12), highest 690.95 ft (1988-12-31), average 687.43 ft, 91 days measured1989: lowest 691.04 ft (1989-01-01), highest 699.07 ft (1989-04-04), average 695.12 ft, 365 days measured1990: lowest 689.39 ft (1990-12-19), highest 706.47 ft (1990-05-22), average 699.02 ft, 335 days measured1991: lowest 689.44 ft (1991-01-02), highest 712.09 ft (1991-07-31), average 705.86 ft, 365 days measured1992: lowest 692.78 ft (1992-11-23), highest 710.27 ft (1992-04-25), average 703.64 ft, 366 days measured1993: lowest 660.32 ft (1993-01-17), highest 750.27 ft (1993-03-29), average 741.76 ft, 270 days measured2004: lowest 655.92 ft (2004-10-01), highest 679.81 ft (2004-04-23), average 669.88 ft, 285 days measured2005: lowest 677.55 ft (2005-01-01), highest 725.87 ft (2005-05-07), average 713.09 ft, 354 days measured2006: lowest 684.53 ft (2006-11-06), highest 707.93 ft (2006-05-15), average 695.47 ft, 345 days measured2007: lowest 681.41 ft (2007-10-31), highest 688.08 ft (2007-03-03), average 685.03 ft, 365 days measured2008: lowest 685.47 ft (2008-01-01), highest 708.03 ft (2008-12-31), average 701.86 ft, 366 days measured2009: lowest 708.12 ft (2009-01-01), highest 715.46 ft (2009-06-30), average 711.82 ft, 365 days measured2010: lowest 708.96 ft (2010-01-12), highest 726.79 ft (2010-12-31), average 717.04 ft, 153 days measured2011: lowest 726.96 ft (2011-01-01), highest 744.51 ft (2011-05-03), average 734.76 ft, 341 days measured2012: lowest 717.29 ft (2012-12-12), highest 729.10 ft (2012-01-01), average 724.07 ft, 366 days measured2013: lowest 694.26 ft (2013-12-31), highest 717.48 ft (2013-01-01), average 709.86 ft, 365 days measured2014: lowest 678.11 ft (2014-11-29), highest 694.17 ft (2014-01-01), average 683.38 ft, 365 days measured2015: lowest 674.86 ft (2015-12-09), highest 678.39 ft (2015-03-02), average 676.84 ft, 365 days measured2016: lowest 664.58 ft (2016-11-25), highest 676.19 ft (2016-01-12), average 667.99 ft, 355 days measured2017: lowest 665.39 ft (2017-01-01), highest 699.94 ft (2017-05-08), average 689.72 ft, 358 days measured2018: lowest 669.23 ft (2018-11-28), highest 679.85 ft (2018-01-01), average 671.96 ft, 361 days measured2019: lowest 669.56 ft (2019-01-15), highest 695.27 ft (2019-06-09), average 690.42 ft, 351 days measured2020: lowest 681.42 ft (2020-12-31), highest 701.78 ft (2020-04-27), average 693.88 ft, 366 days measured2021: lowest 671.67 ft (2021-12-07), highest 681.36 ft (2021-01-01), average 674.87 ft, 365 days measured2022: lowest 667.20 ft (2022-12-27), highest 671.95 ft (2022-01-01), average 669.38 ft, 365 days measured2023: lowest 667.55 ft (2023-01-01), highest 708.92 ft (2023-04-06), average 691.98 ft, 356 days measured2024: lowest 674.09 ft (2024-12-31), highest 690.02 ft (2024-04-17), average 682.16 ft, 304 days measured2025: lowest 660.94 ft (2025-12-23), highest 674.04 ft (2025-01-01), average 666.48 ft, 284 days measured2026: lowest 637.90 ft (2026-10-08), highest 661.77 ft (2026-01-07), average 642.44 ft, 205 days measured
631663694726757198819982008201820261988: lowest 683.36 ft (1988-10-12), highest 690.95 ft (1988-12-31), average 687.43 ft, 91 days measured1989: lowest 691.04 ft (1989-01-01), highest 699.07 ft (1989-04-04), average 695.12 ft, 365 days measured1990: lowest 689.39 ft (1990-12-19), highest 706.47 ft (1990-05-22), average 699.02 ft, 335 days measured1991: lowest 689.44 ft (1991-01-02), highest 712.09 ft (1991-07-31), average 705.86 ft, 365 days measured1992: lowest 692.78 ft (1992-11-23), highest 710.27 ft (1992-04-25), average 703.64 ft, 366 days measured1993: lowest 660.32 ft (1993-01-17), highest 750.27 ft (1993-03-29), average 741.76 ft, 270 days measured2004: lowest 655.92 ft (2004-10-01), highest 679.81 ft (2004-04-23), average 669.88 ft, 285 days measured2005: lowest 677.55 ft (2005-01-01), highest 725.87 ft (2005-05-07), average 713.09 ft, 354 days measured2006: lowest 684.53 ft (2006-11-06), highest 707.93 ft (2006-05-15), average 695.47 ft, 345 days measured2007: lowest 681.41 ft (2007-10-31), highest 688.08 ft (2007-03-03), average 685.03 ft, 365 days measured2008: lowest 685.47 ft (2008-01-01), highest 708.03 ft (2008-12-31), average 701.86 ft, 366 days measured2009: lowest 708.12 ft (2009-01-01), highest 715.46 ft (2009-06-30), average 711.82 ft, 365 days measured2010: lowest 708.96 ft (2010-01-12), highest 726.79 ft (2010-12-31), average 717.04 ft, 153 days measured2011: lowest 726.96 ft (2011-01-01), highest 744.51 ft (2011-05-03), average 734.76 ft, 341 days measured2012: lowest 717.29 ft (2012-12-12), highest 729.10 ft (2012-01-01), average 724.07 ft, 366 days measured2013: lowest 694.26 ft (2013-12-31), highest 717.48 ft (2013-01-01), average 709.86 ft, 365 days measured2014: lowest 678.11 ft (2014-11-29), highest 694.17 ft (2014-01-01), average 683.38 ft, 365 days measured2015: lowest 674.86 ft (2015-12-09), highest 678.39 ft (2015-03-02), average 676.84 ft, 365 days measured2016: lowest 664.58 ft (2016-11-25), highest 676.19 ft (2016-01-12), average 667.99 ft, 355 days measured2017: lowest 665.39 ft (2017-01-01), highest 699.94 ft (2017-05-08), average 689.72 ft, 358 days measured2018: lowest 669.23 ft (2018-11-28), highest 679.85 ft (2018-01-01), average 671.96 ft, 361 days measured2019: lowest 669.56 ft (2019-01-15), highest 695.27 ft (2019-06-09), average 690.42 ft, 351 days measured2020: lowest 681.42 ft (2020-12-31), highest 701.78 ft (2020-04-27), average 693.88 ft, 366 days measured2021: lowest 671.67 ft (2021-12-07), highest 681.36 ft (2021-01-01), average 674.87 ft, 365 days measured2022: lowest 667.20 ft (2022-12-27), highest 671.95 ft (2022-01-01), average 669.38 ft, 365 days measured2023: lowest 667.55 ft (2023-01-01), highest 708.92 ft (2023-04-06), average 691.98 ft, 356 days measured2024: lowest 674.09 ft (2024-12-31), highest 690.02 ft (2024-04-17), average 682.16 ft, 304 days measured2025: lowest 660.94 ft (2025-12-23), highest 674.04 ft (2025-01-01), average 666.48 ft, 284 days measured2026: lowest 637.90 ft (2026-10-08), highest 661.77 ft (2026-01-07), average 642.44 ft, 205 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.

  • 2016664.58 ft on Nov 25
  • 2017665.39 ft on Jan 1
  • 2022667.20 ft on Dec 27
  • 2023667.55 ft on Jan 1
  • 2018669.23 ft on Nov 28

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (205 days)642.44637.90Oct 8661.77Jan 7
2025 (284 days)666.48660.94Dec 23674.04Jan 1
2024 (304 days)682.16674.09Dec 31690.02Apr 17
2023691.98667.55Jan 1708.92Apr 6
2022669.38667.20Dec 27671.95Jan 1
2021674.87671.67Dec 7681.36Jan 1
2020693.88681.42Dec 31701.78Apr 27
2019690.42669.56Jan 15695.27Jun 9
2018671.96669.23Nov 28679.85Jan 1
2017689.72665.39Jan 1699.94May 8
2016667.99664.58Nov 25676.19Jan 12
2015676.84674.86Dec 9678.39Mar 2
2014683.38678.11Nov 29694.17Jan 1
2013709.86694.26Dec 31717.48Jan 1
2012724.07717.29Dec 12729.10Jan 1
2011734.76726.96Jan 1744.51May 3
2010 (153 days)717.04708.96Jan 12726.79Dec 31
2009711.82708.12Jan 1715.46Jun 30
2008701.86685.47Jan 1708.03Dec 31
2007685.03681.41Oct 31688.08Mar 3
2006695.47684.53Nov 6707.93May 15
2005713.09677.55Jan 1725.87May 7
2004 (285 days)669.88655.92Oct 1679.81Apr 23
1993 (270 days)741.76660.32Jan 17750.27Mar 29
1992703.64692.78Nov 23710.27Apr 25
1991705.86689.44Jan 2712.09Jul 31
1990699.02689.39Dec 19706.47May 22
1989695.12691.04Jan 1699.07Apr 4
1988 (91 days)687.43683.36Oct 12690.95Dec 31

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

Monthly averages

MonthAverageLowestHighest
January691.46658.95729.59
February695.13658.63745.58
March698.25669.07750.27
April698.96644.84750.16
May696.81639.94749.43
June695.26639.58748.10
July693.81639.06746.98
August691.28638.52744.64
September691.72638.03741.56
October689.37637.90730.20
November689.75664.58729.30
December688.90660.94729.30

Download

Daily levels as CSV (9,497 rows; credit the original agencies listed below)