Gorge Reservoir water level history

Daily records since 1982 · Level today: 871.64 ft

Highest on record

878.78 ft

Nov 13, 1995

Lowest on record

782.00 ft

Aug 13, 1997

Today

871.64 ft

Oct 21, 2026

Years of data

since 1982

In short

Across 43 complete years, 2013 had the lowest average level (854.18 ft) and 1991 the highest (873.42 ft).

On average the lake is lowest in August (869.67 ft) and highest in May (872.34 ft).

Gorge Reservoir level, all years

Loading chart…

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

Lowest years

Years ranked by their lowest daily level.

1997782.00 ft on Aug 13
2013818.02 ft on Jul 23
1993819.83 ft on Aug 19
2003820.07 ft on Nov 2
2025823.66 ft on Jun 26

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (293 days)	871.85	869.19	Mar 19	874.23	Jan 9
2025	870.98	823.66	Jun 26	874.54	Nov 1
2024	871.89	867.70	Jun 2	874.12	Apr 26
2023	871.95	868.84	Nov 3	874.07	Jul 12
2022	871.67	867.54	Apr 18	874.21	Dec 4
2021	871.62	868.69	Nov 12	874.70	Jun 28
2020	871.30	868.30	Oct 9	874.38	Feb 18
2019	870.79	824.71	Apr 3	873.82	Apr 13
2018	871.33	868.30	Jan 30	873.67	Jun 8
2017	871.19	865.69	Oct 19	874.52	Mar 27
2016	871.22	865.87	Oct 15	873.50	Jun 22
2015	871.24	860.69	Nov 12	874.09	Jan 23
2014	871.31	865.99	Mar 5	874.21	Nov 27
2013	854.18	818.02	Jul 23	874.41	Jan 1
2012	871.56	868.49	Nov 7	874.60	Oct 19
2011	871.16	846.11	Nov 22	874.44	Aug 7
2010	871.40	861.17	Oct 3	874.10	Jun 19
2009	871.29	850.36	Jan 6	874.27	Jul 31
2008	871.73	824.10	Aug 14	875.82	Jul 1
2007	871.92	845.67	Jun 26	875.86	Jul 6
2006	872.34	868.18	May 2	877.11	Jul 3
2005	872.07	867.70	Jul 6	875.41	Sep 29
2004	872.37	869.19	Oct 22	875.00	Jun 22
2003	870.59	820.07	Nov 2	876.71	Jul 13
2002	871.87	851.41	Mar 27	877.38	Jan 7
2001	870.63	867.51	Nov 15	874.31	May 16
2000	872.14	868.12	Nov 9	874.73	May 15
1999	872.86	868.49	May 27	878.66	Jul 29
1998	872.49	868.46	Dec 25	874.93	Jun 1
1997	870.19	782.00	Aug 13	878.48	Jun 14
1996	872.79	868.33	Jul 29	874.74	May 13
1995	872.51	864.25	Nov 23	878.78	Nov 13
1994	872.72	869.12	Aug 16	874.72	Nov 17
1993	872.12	819.83	Aug 19	874.50	May 19
1992	872.81	869.25	Nov 4	874.42	Mar 16
1991	873.42	866.87	Feb 5	878.63	Jul 4
1990	872.97	867.44	May 29	878.56	Jul 12
1989	872.26	867.78	Feb 4	878.72	Jul 14
1988	872.31	865.11	Aug 8	874.84	Mar 5
1987	872.36	867.81	Jan 21	874.93	May 11
1986	872.06	865.43	Feb 24	878.51	Jun 7
1985	872.33	865.21	Feb 14	874.77	Jul 7
1984	872.47	864.34	Aug 15	877.73	Jul 1
1983	872.52	868.01	Mar 26	878.31	Jul 19
1982 (92 days)	872.36	868.91	Nov 14	874.47	Dec 21

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

Monthly averages

Month	Average	Lowest	Highest
January	871.89	850.36	877.38
February	872.08	865.21	875.47
March	872.10	851.41	878.13
April	871.94	824.71	874.75
May	872.34	867.27	877.19
June	872.11	823.66	878.51
July	871.91	818.02	878.72
August	869.67	782.00	878.27
September	870.74	819.25	878.05
October	870.54	820.12	877.22
November	870.63	820.07	878.78
December	871.82	852.95	877.77

Download

Daily levels as CSV (16,089 rows; credit the original agencies listed below)