Cougar Lake water level history

Daily records since 1974 · Level today: 1,531.11 ft

Highest on record

1,696.49 ft

Apr 28, 1990

Lowest on record

1,398.42 ft

Nov 15, 2002

Today

1,531.11 ft

Oct 22, 2026

Years of data

since 1974

In short

Across 40 complete years, 2002 had the lowest average level (1,445.99 ft) and 1996 the highest (1,631.10 ft).

On average the lake is lowest in December (1,540.36 ft) and highest in June (1,652.81 ft).

Cougar Lake level, all years

Loading chart…

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

Lowest years

Years ranked by their lowest daily level.

20021,398.42 ft on Nov 15
20161,456.06 ft on Mar 28
20211,499.83 ft on Nov 7
20241,500.00 ft on Nov 12
20231,500.16 ft on Nov 11

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (293 days)	1,553.79	1,520.73	Mar 12	1,578.26	Jun 11
2025	1,544.29	1,502.07	Dec 4	1,638.49	Jan 8
2024	1,561.66	1,500.00	Nov 12	1,641.04	Jan 31
2023	1,558.35	1,500.16	Nov 11	1,609.04	Jun 20
2022	1,555.46	1,501.97	Nov 22	1,636.78	Jul 27
2021	1,578.08	1,499.83	Nov 7	1,647.23	May 28
2020	1,610.95	1,530.77	Jan 18	1,683.95	Jun 3
2019	1,575.65	1,515.75	Jan 17	1,691.48	Apr 12
2018	1,577.61	1,515.79	Dec 9	1,683.77	May 9
2017	1,626.81	1,531.78	Jan 8	1,690.73	May 18
2016	1,547.70	1,456.06	Mar 28	1,579.18	Jul 12
2015	1,571.90	1,531.79	Jan 15	1,604.22	Jun 9
2014	1,624.48	1,526.14	Feb 11	1,691.00	May 10
2013 (106 days)	1,563.97	1,528.77	Nov 18	1,607.56	Oct 4
2003 (273 days)	1,446.31	1,400.00	Jan 11	1,469.70	Mar 27
2002	1,445.99	1,398.42	Nov 15	1,565.79	Mar 22
2001	1,592.27	1,533.17	Jan 10	1,653.35	Jul 5
2000	1,625.39	1,530.83	Jan 23	1,691.51	Jul 6
1999	1,628.80	1,531.99	Dec 31	1,690.36	Jun 14
1998	1,625.65	1,536.69	Dec 10	1,692.05	Jun 11
1997	1,630.49	1,530.74	Jan 16	1,691.86	Jun 3
1996	1,631.10	1,534.70	Dec 3	1,691.83	Jun 18
1995	1,629.97	1,534.05	Jan 7	1,690.91	Jun 7
1994	1,607.55	1,535.72	Jan 1	1,688.01	Jun 30
1993	1,622.06	1,531.25	Jan 6	1,690.75	Jun 8
1992	1,598.88	1,532.62	Jan 10	1,665.00	May 31
1991	1,623.53	1,530.77	Jan 1	1,691.06	Jun 6
1990	1,615.23	1,525.97	Dec 24	1,696.49	Apr 28
1989	1,613.73	1,531.99	Dec 26	1,690.82	Jun 4
1988	1,623.18	1,531.40	Dec 28	1,690.97	Jun 1
1987	1,622.59	1,532.09	Jan 12	1,678.33	Jun 8
1986	1,620.73	1,531.76	Dec 17	1,690.34	May 22
1985	1,613.80	1,532.38	Dec 31	1,692.84	Jun 8
1984	1,625.30	1,532.10	Jan 16	1,692.08	Jun 7
1983	1,627.06	1,532.27	Dec 28	1,690.39	Jul 2
1982	1,626.88	1,531.55	Jan 19	1,691.90	Jun 12
1981	1,625.36	1,531.45	Jan 13	1,691.23	Jul 2
1980	1,625.54	1,534.53	Dec 1	1,692.41	Jun 3
1979	1,620.76	1,521.76	Jan 9	1,692.50	May 15
1978	1,620.82	1,530.68	Dec 29	1,684.64	Jul 21
1977	1,614.97	1,525.88	Jan 12	1,695.06	Jun 29
1976	1,628.63	1,526.24	Dec 31	1,690.23	May 15
1975	1,630.02	1,537.69	Jan 23	1,691.17	May 31
1974 (92 days)	1,568.06	1,532.64	Nov 30	1,637.75	Oct 1

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

Monthly averages

Month	Average	Lowest	Highest
January	1,541.48	1,400.00	1,663.29
February	1,562.67	1,450.01	1,659.76
March	1,596.27	1,449.84	1,665.84
April	1,626.34	1,450.00	1,696.49
May	1,650.30	1,399.39	1,692.50
June	1,652.81	1,399.00	1,695.06
July	1,650.69	1,399.09	1,694.92
August	1,635.58	1,399.23	1,689.74
September	1,607.53	1,399.00	1,677.13
October	1,579.52	1,399.21	1,648.02
November	1,548.64	1,398.42	1,610.70
December	1,540.36	1,399.60	1,634.02

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Daily levels as CSV (15,357 rows; credit the original agencies listed below)