Lake Chelan water level history

Daily records since 1926 · Level today: 1,094.76 ft

Highest on record

1,100.02 ft

Jul 20, 1947

Lowest on record

1,077.09 ft

Apr 11, 1927

Today

1,094.76 ft

Oct 21, 2026

Years of data

101

since 1926

In short

Across 92 complete years, 1927 had the lowest average level (1,081.07 ft) and 1951 the highest (1,097.05 ft).

On average the lake is lowest in March (1,086.32 ft) and highest in July (1,099.21 ft).

Lake Chelan 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.

19271,077.09 ft on Apr 11
19701,079.68 ft on Apr 3
19371,079.69 ft on Apr 3
19671,080.27 ft on May 3
19751,080.41 ft on Apr 9

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (291 days)	1,095.63	1,089.39	Mar 17	1,099.50	Jul 13
2025	1,093.51	1,085.88	Mar 1	1,099.65	Jul 3
2024	1,093.42	1,089.01	Dec 31	1,099.58	Jul 23
2023	1,093.03	1,084.87	Mar 31	1,099.60	Aug 11
2022	1,093.43	1,087.32	Apr 30	1,099.52	Jul 31
2021	1,093.87	1,085.58	Mar 31	1,099.79	Jul 1
2020	1,093.23	1,085.43	Mar 27	1,099.88	Jul 22
2019	1,092.69	1,084.65	Mar 21	1,099.82	Jul 18
2018	1,093.47	1,085.67	Apr 1	1,099.73	Jul 20
2017	1,093.35	1,085.57	Mar 13	1,099.66	Jul 30
2016	1,095.09	1,087.80	Mar 19	1,099.82	Jun 30
2015	1,095.43	1,091.60	Mar 13	1,099.89	Jun 29
2014	1,093.29	1,085.81	Mar 6	1,099.99	Jul 14
2013	1,092.97	1,086.11	Feb 27	1,099.89	Jul 11
2012	1,092.54	1,083.31	Mar 27	1,099.98	Jul 27
2011	1,091.57	1,083.00	May 7	1,099.98	Aug 5
2010	1,094.34	1,089.25	Dec 31	1,099.95	Aug 19
2009	1,093.99	1,086.03	Apr 7	1,099.96	Jul 26
2008	1,092.00	1,082.68	Mar 14	1,099.89	Jul 28
2007	1,094.53	1,088.96	Mar 11	1,099.97	Jul 19
2006	1,092.99	1,082.89	Apr 24	1,099.88	Jul 25
2005	1,095.91	1,090.34	Dec 25	1,099.94	May 31
2004	1,094.49	1,087.81	Apr 5	1,099.91	Aug 27
2003	1,094.07	1,087.10	Mar 13	1,099.92	Jul 5
2002	1,092.47	1,084.43	Apr 12	1,099.94	Jul 24
2001	1,094.73	1,090.03	Jan 1	1,099.71	Jul 28
2000	1,094.21	1,087.73	Apr 3	1,099.84	Jul 23
1999	1,092.87	1,083.44	Apr 18	1,099.80	Aug 6
1998	1,094.92	1,088.00	Apr 22	1,099.85	Aug 26
1997	1,093.58	1,084.65	Mar 19	1,099.90	Aug 3
1996	1,095.90	1,090.79	Dec 31	1,099.76	Sep 1
1995	1,094.48	1,085.82	Mar 13	1,099.84	Jul 7
1994	1,092.52	1,082.83	Mar 29	1,099.88	Jul 10
1993	1,092.82	1,083.03	Mar 20	1,099.93	Jun 15
1992	1,092.64	1,083.83	Mar 26	1,099.58	Jul 27
1991	1,095.25	1,089.28	Dec 31	1,099.89	Jul 21
1990	1,094.79	1,086.43	Apr 1	1,099.97	Aug 22
1989 (93 days)	1,095.26	1,093.18	Dec 31	1,098.05	Sep 30
1988 (273 days)	1,091.30	1,081.24	Mar 8	1,099.92	Jul 22
1987 (93 days)	1,093.41	1,088.91	Dec 31	1,098.40	Sep 30
1986 (272 days)	1,093.79	1,085.87	Feb 22	1,100.00	Aug 11
1985	1,092.31	1,083.36	Apr 2	1,099.94	Jul 15
1984	1,093.39	1,087.05	May 7	1,099.94	Aug 12
1983 (273 days)	1,093.18	1,086.00	Mar 8	1,099.94	Aug 10
1982	1,092.81	1,084.73	Apr 13	1,099.96	Jul 21
1981	1,095.97	1,091.58	Mar 19	1,099.98	Jul 27
1980	1,092.76	1,081.15	Apr 12	1,099.94	Jul 19
1979	1,091.92	1,082.92	Apr 9	1,099.96	Jul 28
1978	1,093.10	1,083.35	Mar 22	1,099.94	Aug 4
1977	1,091.66	1,085.34	Apr 5	1,097.48	Aug 14
1976	1,095.23	1,089.90	Dec 31	1,099.98	Aug 11
1975	1,092.14	1,080.41	Apr 9	1,099.93	Jul 16
1974	1,092.40	1,083.76	Apr 8	1,099.99	Jul 29
1973	1,091.75	1,082.73	Mar 29	1,099.94	Jul 22
1972	1,092.23	1,082.83	Feb 26	1,099.93	Aug 7
1971	1,092.04	1,083.69	Apr 19	1,099.94	Aug 9
1970	1,090.26	1,079.68	Apr 3	1,099.94	Jul 20
1969	1,092.13	1,081.72	Mar 30	1,099.95	Jul 20
1968	1,095.57	1,089.70	Dec 31	1,099.98	Aug 3
1967	1,092.10	1,080.27	May 3	1,099.94	Jul 26
1966	1,091.45	1,081.70	Mar 29	1,099.89	Jul 19
1965	1,094.48	1,087.95	Feb 25	1,099.92	Jul 27
1964	1,093.01	1,082.28	Apr 20	1,099.94	Sep 14
1963	1,095.10	1,088.90	Apr 6	1,099.96	Aug 6
1962	1,093.38	1,083.34	Apr 2	1,099.99	Jul 24
1961	1,091.92	1,081.49	Apr 1	1,099.98	Aug 16
1960	1,094.95	1,087.81	Dec 31	1,099.98	Jul 19
1959	1,095.27	1,085.23	Apr 1	1,099.98	Aug 26
1958	1,092.13	1,081.42	Apr 12	1,099.98	Jun 27
1957	1,092.74	1,083.15	Apr 8	1,099.99	Jul 15
1956	1,094.87	1,086.34	Apr 9	1,099.99	Jul 30
1955	1,092.97	1,082.41	Apr 29	1,099.97	Aug 7
1954	1,093.05	1,083.57	Apr 10	1,099.98	Aug 20
1953	1,091.47	1,080.48	Apr 18	1,099.98	Jul 29
1952 (274 days)	1,092.21	1,083.28	Mar 31	1,099.99	Jul 28
1951	1,097.05	1,091.58	Apr 2	1,099.97	Jul 28
1950	1,095.66	1,089.40	Apr 7	1,099.98	Aug 12
1949	1,091.28	1,082.04	Apr 3	1,099.88	Aug 4
1948	1,093.28	1,086.99	Apr 15	1,099.97	Aug 4
1947	1,092.78	1,083.90	Mar 16	1,100.02	Jul 20
1946	1,091.85	1,083.31	Apr 13	1,099.97	Jul 29
1945	1,092.50	1,086.25	Jan 28	1,100.00	Jul 6
1944	1,092.31	1,084.24	Feb 2	1,099.88	Jul 20
1943 (273 days)	1,093.00	1,085.28	Mar 25	1,099.94	Jul 19
1942	1,095.46	1,090.39	Dec 30	1,099.96	Jun 29
1941	1,094.05	1,085.73	Mar 15	1,099.96	Jul 7
1940	1,090.96	1,083.00	Mar 22	1,099.96	Jun 19
1939	1,091.33	1,084.04	Mar 22	1,099.97	Jul 28
1938	1,092.51	1,085.44	Dec 31	1,099.98	Jul 15
1937	1,089.11	1,079.69	Apr 3	1,099.97	Jul 17
1936	1,090.27	1,081.44	Mar 1	1,099.96	Jul 14
1935	1,094.27	1,086.18	Dec 31	1,099.79	Jul 13
1934	1,095.90	1,090.10	Mar 4	1,099.74	Jul 30
1933	1,096.19	1,090.06	Mar 28	1,099.74	Aug 6
1932	1,095.34	1,088.03	Feb 24	1,099.72	Aug 6
1931	1,092.21	1,086.42	Feb 16	1,099.82	Jul 10
1930	1,091.47	1,081.83	Feb 1	1,099.85	Jul 13
1929	1,090.73	1,083.79	Apr 12	1,099.77	Jul 14
1928	1,093.14	1,084.83	Jan 1	1,099.46	Jun 23
1927	1,081.07	1,077.09	Apr 11	1,084.83	Dec 28
1926 (306 days)	1,079.47	1,077.97	Mar 6	1,080.60	Jul 1

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

Monthly averages

Month	Average	Lowest	Highest
January	1,089.88	1,079.07	1,099.39
February	1,087.86	1,078.79	1,098.33
March	1,086.32	1,077.35	1,094.05
April	1,086.65	1,077.09	1,099.16
May	1,090.80	1,078.50	1,099.94
June	1,097.08	1,079.73	1,099.98
July	1,099.21	1,079.65	1,100.02
August	1,099.06	1,079.27	1,100.00
September	1,097.94	1,078.50	1,099.97
October	1,095.80	1,078.34	1,099.84
November	1,093.82	1,079.47	1,099.68
December	1,092.03	1,079.62	1,099.80

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Daily levels as CSV (35,572 rows; credit the original agencies listed below)