George B. Stevenson Lake water level history

Daily records since 1989 · Level today: 922.23 ft

Highest on record

1,010.98 ft

Apr 3, 1993

Lowest on record

909.31 ft

May 8, 2017

Today

922.23 ft

Oct 21, 2026

Years of data

since 1989

In short

Across 36 complete years, 2016 had the lowest average level (915.00 ft) and 1993 the highest (924.63 ft).

On average the lake is lowest in October (920.81 ft) and highest in March (922.53 ft).

Loading chart…

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

Years ranked by their lowest daily level.

Year	Average	Low	Low date	High	High date
2026 (292 days)	922.01	921.23	Apr 4	922.40	Feb 6
2025	922.06	921.51	Sep 22	923.89	May 7
2024	921.96	913.32	Feb 20	954.45	Aug 10
2023	922.10	921.65	May 23	922.53	Feb 5
2022	922.24	921.65	Mar 10	940.01	Feb 19
2021	922.27	920.94	May 11	945.43	Aug 19
2020	922.08	921.00	Apr 2	930.71	Dec 25
2019	922.25	921.27	Mar 17	933.61	Jun 22
2018	922.54	921.28	Sep 21	957.65	Sep 12
2017	917.11	909.31	May 8	923.30	Dec 30
2016	915.00	910.17	Oct 25	924.05	Feb 25
2015	921.78	921.31	Jul 7	933.50	Sep 30
2014	921.78	921.21	Jan 3	930.23	May 17
2013	923.33	921.34	Feb 5	960.11	Mar 20
2012	921.65	921.21	Mar 5	922.51	Jan 28
2011	922.02	920.79	Feb 6	943.77	Mar 12
2010	922.74	919.38	Mar 26	977.96	Dec 2
2009	921.79	919.86	Jan 22	954.92	Mar 10
2008	919.97	909.67	Oct 24	949.98	Feb 8
2007	921.74	920.21	Jan 25	941.43	Mar 16
2006	921.87	919.58	Mar 30	939.77	Nov 18
2005	922.13	919.34	Jan 10	966.56	Dec 1
2004	922.26	915.28	Oct 10	986.17	Sep 19
2003	922.39	919.84	Apr 8	960.04	Mar 23
2002	922.13	918.21	Sep 14	966.78	May 15
2001	921.47	920.61	Dec 5	925.27	Mar 22
2000	921.49	919.87	May 27	926.64	Apr 4
1999	921.77	919.60	Apr 5	959.79	Jan 25
1998	922.29	919.02	Mar 15	967.51	Jan 11
1997	921.55	918.18	Jan 17	938.82	Nov 10
1996	922.48	915.74	Oct 28	989.88	Jan 21
1995	921.29	920.32	Nov 15	925.51	Oct 21
1994	921.00	914.30	Oct 19	949.00	Aug 19
1993	924.63	919.87	Nov 26	1,010.98	Apr 3
1992	921.49	920.05	Jan 19	943.70	Jul 16
1991	920.95	916.28	Oct 28	941.70	Mar 5
1990	921.39	920.01	Aug 28	931.24	Oct 12
1989 (1 days)	921.02	921.02	Dec 31	921.02	Dec 31

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

Month	Average	Lowest	Highest
January	922.37	910.56	989.88
February	921.36	910.53	949.98
March	922.53	910.54	988.88
April	922.20	910.27	1,010.98
May	921.28	909.31	966.78
June	921.22	911.13	933.61
July	921.36	910.99	943.70
August	921.40	911.18	954.45
September	921.57	910.96	986.17
October	920.81	909.67	939.62
November	921.77	910.61	967.91
December	921.83	910.40	977.96

Daily levels as CSV (13,407 rows; credit the original agencies listed below)