Spirit Lake water level history

Daily records since 1933 · Level today: 14.19 ft

Highest on record

18.79 ft

Jul 18, 1993

Lowest on record

6.75 ft

Oct 30, 1935

Today

14.19 ft

Oct 22, 2026

Years of data

since 1933

In short

Across 51 complete years, 1956 had the lowest average level (12.11 ft) and 2018 the highest (14.76 ft).

On average the lake is lowest in October (12.94 ft) and highest in June (13.75 ft).

Spirit Lake 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.

199110.22 ft on Jan 1
195611.31 ft on Oct 28
196811.60 ft on Sep 15
196211.62 ft on Feb 5
200411.68 ft on Sep 13

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (291 days)	14.21	13.79	Jan 25	14.73	Jul 4
2025	13.86	13.32	Feb 15	14.73	Aug 20
2024	13.98	13.10	Mar 21	16.48	Jun 25
2023	13.74	13.00	Dec 13	14.70	May 14
2022	13.02	12.10	Feb 8	14.19	Jul 16
2021	12.66	12.12	Dec 9	13.28	Apr 9
2020	14.09	12.91	Dec 20	15.01	Mar 30
2019	14.69	13.93	Sep 7	15.58	Mar 26
2018	14.76	14.25	Jan 1	15.94	Jul 5
2017	14.51	14.15	Aug 13	15.05	May 24
2016	14.64	14.15	Sep 4	15.22	May 12
2015	13.90	13.48	Oct 19	14.77	Dec 29
2014	13.64	12.99	Jan 28	14.85	Jun 27
2013	13.52	12.69	Jan 26	14.64	Jun 25
2012	13.52	12.66	Dec 14	14.58	Jun 8
2011	14.33	13.22	Nov 17	15.45	Jul 16
2010	14.60	14.19	Sep 7	15.12	Mar 24
2009	14.17	13.59	Jan 1	14.62	May 9
2008	14.24	13.47	Dec 13	15.04	May 7
2007	14.35	13.07	Aug 4	15.58	Apr 1
2006	14.31	13.57	Dec 8	15.54	Apr 11
2005	14.24	13.52	Jan 1	15.26	May 18
2004	12.40	11.68	Sep 13	13.51	Dec 30
2003	12.77	11.94	Dec 1	13.63	Jul 8
2002	13.28	12.80	Dec 31	13.73	Jun 13
2001	13.62	12.14	Jan 3	15.24	Jun 17
2000	12.53	11.89	Oct 12	13.07	Jul 12
1999	13.88	12.62	Dec 29	14.79	Jun 12
1998	13.72	13.15	Jan 1	14.21	May 5
1997	14.05	13.12	Nov 26	14.89	Apr 7
1996	14.17	13.57	Nov 11	14.80	May 28
1995	14.43	13.68	Feb 18	15.73	Apr 12
1994	14.42	13.70	Nov 16	15.53	Jun 23
1993 (268 days)	15.77	14.33	Feb 4	18.79	Jul 18
1992	14.61	14.09	Jan 1	15.63	Apr 21
1991	12.69	10.22	Jan 1	14.55	Jun 22
1990 (247 days)	10.80	10.18	Nov 30	11.48	Jun 18
1975 (272 days)	13.81	12.98	Jan 1	14.69	Jun 24
1974	13.89	12.95	Dec 10	14.61	Jun 11
1973	14.07	13.42	Sep 25	14.68	Mar 26
1972	13.92	13.48	Jan 19	14.47	Jun 9
1971	14.13	13.18	Oct 17	15.13	Apr 3
1970	14.01	13.45	Oct 6	14.70	May 15
1969	13.83	12.14	Jan 1	15.72	Jul 10
1968	12.12	11.60	Sep 15	12.45	Jan 12
1967	13.22	12.44	Dec 30	14.10	Jul 1
1966	13.89	13.12	Dec 2	14.55	Apr 29
1965	13.91	12.56	Jan 22	15.25	Apr 14
1964	12.90	12.55	Dec 6	13.64	May 17
1963	13.61	12.86	Dec 29	14.10	Apr 2
1962	13.43	11.62	Feb 5	15.22	Jul 13
1961 (307 days)	11.83	10.64	Jan 1	12.70	Jun 14
1960 (270 days)	10.59	9.04	Jan 1	11.11	Jul 13
1959 (230 days)	9.21	8.70	Sep 19	10.15	Jun 2
1958 (241 days)	10.52	9.39	Dec 27	11.69	Apr 24
1957 (296 days)	11.63	10.97	Feb 9	12.28	Jul 8
1956	12.11	11.31	Oct 28	12.81	May 13
1955	13.56	12.27	Dec 1	14.58	Apr 25
1954	14.09	13.52	Feb 5	14.82	Jul 3
1953	13.96	13.17	Jan 1	15.27	Jun 14
1952 (284 days)	14.24	13.14	Nov 23	15.36	Mar 23
1951 (266 days)	13.98	12.08	Jan 1	15.23	Jul 13
1950 (168 days)	12.41	12.05	Nov 23	13.06	Jul 27
1949 (126 days)	14.23	13.20	Jan 2	14.65	Apr 14
1948 (207 days)	13.78	13.17	Dec 10	14.78	May 26
1947 (183 days)	14.36	13.46	Oct 23	15.34	Jul 5
1946 (226 days)	14.55	13.53	Mar 1	15.14	Jun 25
1945 (156 days)	14.41	13.42	Nov 23	15.66	Jun 24
1944 (162 days)	14.99	14.27	Aug 9	15.59	Jun 17
1943 (133 days)	12.94	11.34	Jan 2	14.67	Aug 30
1942 (194 days)	10.81	9.32	Feb 14	11.47	Sep 19
1941 (105 days)	9.51	9.19	Oct 29	10.31	May 27
1940 (119 days)	10.19	9.34	Oct 25	10.78	Jun 7
1939 (167 days)	11.19	10.26	Dec 12	11.80	May 28
1938 (221 days)	9.38	7.73	Jan 2	11.18	Oct 11
1937 (187 days)	7.91	7.58	Apr 16	8.42	Jun 26
1936 (75 days)	7.51	7.00	Aug 25	8.41	May 24
1935 (73 days)	7.33	6.75	Oct 30	8.30	Jun 25
1934 (148 days)	7.49	6.94	Nov 7	8.38	Apr 2
1933 (182 days)	9.04	8.20	Nov 18	9.88	May 20

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

Monthly averages

Month	Average	Lowest	Highest
January	13.15	7.73	14.75
February	13.36	7.73	14.88
March	13.48	7.05	15.58
April	13.66	7.35	15.80
May	13.68	7.15	16.27
June	13.75	7.44	17.91
July	13.73	7.32	18.79
August	13.33	7.00	17.87
September	13.07	7.06	15.38
October	12.94	6.75	14.98
November	12.95	6.81	14.76
December	12.99	6.98	14.77

Download

Daily levels as CSV (24,130 rows; credit the original agencies listed below)