Stillwater Lake water level history

Daily records since 1989 · Level today: 1,573.31 ft

Highest on record

1,617.26 ft

Apr 2, 1993

Lowest on record

1,572.00 ft

Sep 22, 2025

Today

1,573.31 ft

Oct 21, 2026

Years of data

since 1989

In short

Across 36 complete years, 1997 had the lowest average level (1,573.55 ft) and 2011 the highest (1,575.68 ft).

On average the lake is lowest in July (1,573.39 ft) and highest in April (1,576.31 ft).

Stillwater 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.

20251,572.00 ft on Sep 22
20061,572.24 ft on Aug 14
19931,572.27 ft on Aug 7
19911,572.30 ft on Sep 15
19971,572.32 ft on Aug 12

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (292 days)	1,573.78	1,572.48	Jul 27	1,582.37	Mar 9
2025	1,573.67	1,572.00	Sep 22	1,592.02	May 7
2024	1,574.52	1,572.52	Nov 10	1,601.47	Aug 10
2023	1,574.59	1,572.83	Jun 8	1,594.63	Dec 19
2022	1,574.49	1,572.84	Aug 21	1,589.38	Apr 9
2021	1,574.64	1,572.96	Jun 29	1,591.51	Oct 27
2020	1,574.45	1,572.57	Oct 26	1,592.27	Dec 26
2019	1,574.32	1,572.57	Sep 23	1,581.24	Jan 25
2018	1,575.18	1,572.97	Sep 5	1,586.69	Aug 15
2017	1,574.48	1,572.79	Sep 27	1,586.67	Apr 7
2016	1,573.89	1,572.67	Sep 17	1,580.98	Dec 19
2015	1,573.88	1,572.51	Sep 28	1,588.21	Apr 11
2014	1,574.26	1,572.53	Oct 1	1,585.06	Mar 31
2013	1,574.26	1,572.86	Jun 6	1,590.26	Jun 29
2012	1,573.78	1,572.49	Jul 19	1,585.48	Dec 22
2011	1,575.68	1,572.59	Jul 24	1,603.14	Sep 11
2010	1,574.29	1,572.45	Aug 11	1,594.43	Oct 2
2009	1,574.01	1,572.76	Sep 26	1,585.92	Aug 1
2008	1,574.14	1,572.51	Sep 25	1,589.58	Mar 6
2007	1,574.26	1,572.49	Sep 7	1,590.00	Mar 17
2006	1,574.83	1,572.24	Aug 14	1,613.11	Jun 29
2005	1,574.75	1,572.37	Sep 24	1,615.31	Apr 4
2004	1,574.50	1,572.88	Jun 14	1,599.22	Sep 19
2003	1,575.07	1,572.82	Aug 29	1,601.96	Mar 23
2002	1,574.13	1,572.46	Sep 21	1,585.86	May 14
2001	1,573.58	1,572.53	Sep 13	1,589.26	Apr 10
2000	1,574.52	1,572.92	Jul 14	1,594.97	Feb 29
1999	1,573.74	1,572.32	Sep 5	1,589.07	Jan 25
1998	1,574.27	1,572.34	Oct 7	1,600.03	Jan 10
1997	1,573.55	1,572.32	Aug 12	1,579.70	May 7
1996	1,575.04	1,572.51	Aug 22	1,603.22	Jan 21
1995	1,573.93	1,572.35	Aug 31	1,591.97	Oct 22
1994	1,574.81	1,572.55	Jul 13	1,596.46	Apr 14
1993	1,574.80	1,572.27	Aug 7	1,617.26	Apr 2
1992	1,574.51	1,572.39	Sep 8	1,583.28	Jun 2
1991	1,574.76	1,572.30	Sep 15	1,583.12	Jan 1
1990	1,575.49	1,572.66	Jul 31	1,586.99	Oct 25
1989 (1 days)	1,572.90	1,572.90	Dec 31	1,572.90	Dec 31

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

Monthly averages

Month	Average	Lowest	Highest
January	1,574.75	1,572.91	1,603.22
February	1,574.17	1,572.82	1,594.97
March	1,575.55	1,572.82	1,606.86
April	1,576.31	1,573.03	1,617.26
May	1,574.97	1,572.68	1,592.02
June	1,573.82	1,572.46	1,613.11
July	1,573.39	1,572.33	1,604.89
August	1,573.44	1,572.22	1,601.47
September	1,573.56	1,572.00	1,603.14
October	1,573.99	1,572.17	1,594.43
November	1,574.21	1,572.42	1,594.37
December	1,574.67	1,572.77	1,594.63

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Daily levels as CSV (13,436 rows; credit the original agencies listed below)