Sylvan Lake water level history

Daily records since 1942 · Level today: 9.27 ft

Highest on record

11.14 ft

Mar 12, 2009

Lowest on record

2.17 ft

Mar 27, 1977

Today

9.27 ft

Oct 21, 2026

Years of data

since 1942

In short

Across 70 complete years, 1977 had the lowest average level (5.25 ft) and 2009 the highest (9.56 ft).

On average the lake is lowest in November (7.53 ft) and highest in May (8.07 ft).

Sylvan 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.

19772.17 ft on Mar 27
19802.84 ft on Nov 25
19843.00 ft on Sep 18
19813.00 ft on Jan 24
19603.56 ft on Nov 8

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (292 days)	9.39	9.02	Jul 26	10.67	Apr 6
2025	9.29	9.01	Sep 20	10.49	Apr 5
2024	9.33	8.99	Sep 17	10.41	Jan 29
2023	9.33	9.03	Sep 24	10.43	Mar 1
2022	9.47	9.09	Oct 9	10.57	Feb 19
2021	9.40	9.02	Sep 17	10.34	Oct 27
2020	9.38	9.01	Aug 24	10.39	Jan 13
2019	9.54	9.12	Sep 22	10.48	May 3
2018	9.50	9.09	Sep 23	10.92	Feb 22
2017	9.53	9.10	Oct 3	10.61	May 28
2016	9.35	9.01	Aug 11	9.99	Jan 1
2015	9.33	9.08	Oct 19	10.40	Jul 19
2014	9.32	9.01	Aug 10	10.38	Apr 6
2013	9.32	9.02	Sep 6	10.71	Apr 21
2012	9.26	8.88	Jul 15	10.04	Mar 26
2011	9.49	9.04	Sep 6	10.73	Apr 29
2010	9.42	9.05	Aug 31	10.36	Jun 2
2009	9.56	9.09	Aug 6	11.14	Mar 12
2008	9.49	9.01	Sep 3	10.97	Feb 7
2007	9.51	8.99	Jul 15	10.51	Aug 24
2006	9.50	9.11	Aug 23	10.36	May 16
2005	9.36	9.02	Jul 11	10.55	Jan 14
2004 (317 days)	9.33	9.02	Sep 20	10.10	Jun 15
2003	9.37	9.08	Jul 3	10.05	May 12
2002	9.32	8.98	Sep 14	10.34	May 14
2001	9.37	8.93	Aug 7	10.41	Feb 11
2000	9.26	9.00	Jul 27	9.92	Apr 23
1999	9.31	8.91	Sep 23	10.44	Apr 24
1998	9.41	9.05	Aug 3	10.95	Jan 9
1997	9.52	9.14	Aug 10	10.42	Aug 19
1996 (160 days)	9.94	9.12	Oct 7	11.13	Aug 22
1995 (17 days)	3.12	3.04	Jan 11	3.26	Jan 15
1994 (229 days)	3.47	3.01	Jul 26	5.18	Apr 15
1993 (326 days)	6.48	3.01	Oct 7	10.64	Jan 5
1992	9.44	9.20	Jul 6	10.23	Dec 31
1991	9.47	9.17	Jul 28	10.60	Jan 1
1990 (245 days)	9.57	9.29	Aug 11	10.57	Dec 31
1989 (223 days)	9.22	9.10	Aug 11	9.40	Jun 7
1988	9.30	9.04	Jul 9	9.87	Apr 8
1987	9.36	9.11	Aug 24	9.86	Dec 20
1986	9.50	9.19	Aug 24	10.31	Oct 4
1985 (317 days)	9.56	9.18	Aug 3	10.74	Feb 25
1984	7.37	3.00	Sep 18	10.12	May 27
1983	7.93	4.84	Mar 19	10.43	May 3
1982	8.60	4.94	Mar 10	10.57	Mar 21
1981	7.24	3.00	Jan 24	10.35	Jun 15
1980	6.27	2.84	Nov 25	10.23	Jun 4
1979 (311 days)	6.60	2.72	Nov 8	9.49	May 5
1978 (283 days)	5.53	3.33	Jan 18	7.29	Mar 25
1977	5.25	2.17	Mar 27	6.60	Jul 1
1976 (282 days)	6.33	5.54	Dec 29	7.19	Mar 6
1975 (159 days)	6.12	3.20	Jan 4	6.80	Apr 26
1974 (200 days)	6.45	2.30	Oct 20	7.20	Mar 8
1973	6.40	6.00	Sep 11	7.00	Jan 4
1972	6.39	6.00	Aug 6	7.00	Nov 15
1971	6.25	5.90	Aug 24	6.90	Feb 7
1970	6.32	6.00	Aug 9	7.00	Apr 22
1969	6.37	6.00	Aug 28	7.20	Jan 30
1968	6.28	5.00	Jan 11	7.10	Feb 3
1967	6.28	6.00	Jul 27	6.90	Dec 23
1966	6.32	6.00	Oct 6	7.10	Dec 10
1965	6.16	3.74	Nov 16	7.06	Dec 28
1964	6.16	5.88	Aug 10	6.55	Apr 30
1963	6.20	5.94	Jul 12	6.84	Mar 15
1962	6.31	6.00	Sep 29	6.72	Mar 12
1961	6.20	4.74	Jan 1	7.04	Apr 26
1960	5.81	3.56	Nov 8	6.96	Apr 19
1959	6.07	3.70	Oct 21	7.30	Feb 15
1958	5.86	3.61	Oct 26	7.30	Sep 18
1957	6.30	5.94	Aug 23	7.10	Apr 8
1956	6.25	5.80	Apr 26	7.30	May 1
1955	6.26	5.96	May 13	7.00	Jan 8
1954	6.37	6.06	Sep 28	7.18	Oct 14
1953	6.13	5.80	Sep 10	6.48	Mar 8
1952	6.26	6.00	Oct 5	6.78	Jan 29
1951	6.40	6.10	Sep 23	7.14	Feb 23
1950	6.50	6.04	Jan 1	7.56	Apr 6
1949	6.20	5.88	Mar 14	6.74	Feb 15
1948	6.23	5.90	Mar 8	6.86	Feb 21
1947	6.24	5.90	Apr 28	6.80	Apr 21
1946	6.12	4.64	Jun 17	6.97	Jun 19
1945	6.22	5.96	Oct 10	6.66	May 18
1944	6.05	5.24	Apr 3	6.44	Mar 16
1943	6.41	6.16	Oct 5	7.44	May 18
1942 (64 days)	6.42	6.21	Oct 29	6.68	Dec 31

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

Monthly averages

Month	Average	Lowest	Highest
January	7.62	3.00	10.95
February	7.66	2.30	10.97
March	7.75	2.17	11.14
April	8.02	2.95	10.73
May	8.07	3.02	10.61
June	7.97	3.12	10.45
July	7.83	3.01	10.84
August	7.84	3.01	11.13
September	7.74	3.00	10.79
October	7.61	2.30	10.34
November	7.53	2.72	10.41
December	7.58	2.86	10.57

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Daily levels as CSV (28,933 rows; credit the original agencies listed below)