Foster Lake water level history

Daily records since 1974 · Level today: 613.39 ft

Highest on record

640.45 ft

Apr 28, 1990

Lowest on record

610.57 ft

Mar 1, 2015

Today

613.39 ft

Oct 21, 2026

Years of data

since 1974

In short

Across 40 complete years, 1987 had the lowest average level (622.91 ft) and 1977 the highest (628.34 ft).

On average the lake is lowest in December (614.43 ft) and highest in June (636.72 ft).

Foster 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.

2015610.57 ft on Mar 1
2023610.76 ft on Dec 1
1981611.01 ft on Apr 7
1994611.27 ft on Dec 19
1982611.34 ft on Apr 11

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (293 days)	625.48	613.23	Feb 19	637.64	Jun 16
2025	623.45	612.79	Dec 16	637.05	Aug 26
2024	623.82	611.37	Dec 23	637.45	Jun 4
2023	623.39	610.76	Dec 1	638.12	May 23
2022	623.36	612.81	Jan 4	637.30	Jun 12
2021	626.87	613.06	Nov 18	636.91	Jul 12
2020	627.50	612.79	Jan 8	637.14	Jun 3
2019	627.55	611.65	Dec 11	640.02	Apr 9
2018	624.06	614.08	Dec 6	635.91	Jul 10
2017	625.65	612.83	Nov 17	636.53	Sep 8
2016	624.35	612.82	Apr 17	635.94	Apr 29
2015	623.10	610.57	Mar 1	636.46	Aug 13
2014	624.62	611.42	Dec 20	636.61	May 9
2013 (153 days)	624.64	615.61	Dec 4	635.98	Sep 6
2003 (273 days)	627.47	612.55	Feb 1	638.12	May 21
2002	625.93	613.07	Dec 12	637.74	Sep 23
2001	624.68	612.51	Nov 12	637.80	Sep 28
2000	623.72	612.69	Nov 26	637.38	Jun 17
1999	624.06	612.69	Jan 13	637.82	Aug 16
1998	625.08	613.01	Nov 19	637.34	Jun 15
1997	625.02	612.67	Jan 29	637.73	Oct 10
1996	625.76	612.03	Jan 28	639.26	Jun 1
1995	625.22	612.15	Jan 7	637.81	Aug 1
1994	624.47	611.27	Dec 19	637.77	Jun 7
1993	625.03	613.00	Dec 3	637.88	Sep 12
1992	624.77	612.82	Jan 22	637.91	Sep 28
1991	625.77	612.71	Nov 16	638.58	Sep 8
1990	626.65	612.92	Feb 4	640.45	Apr 28
1989	625.55	612.85	Nov 29	637.65	May 29
1988	624.72	612.62	Jan 10	637.82	Sep 30
1987	622.91	612.99	Feb 3	637.96	Jul 19
1986	627.57	612.82	Dec 9	638.45	May 15
1985	625.89	612.15	Dec 10	638.30	Jun 7
1984	627.45	612.70	Dec 7	637.60	Sep 7
1983	625.39	613.00	Jan 29	637.54	Jun 10
1982	625.00	611.34	Apr 11	637.58	Oct 8
1981	625.28	611.01	Apr 7	638.57	Sep 25
1980	625.95	612.70	Dec 26	637.70	Aug 19
1979	626.02	613.12	Nov 21	637.69	Oct 10
1978	625.72	613.03	Jan 7	637.86	Sep 18
1977	628.34	612.59	Jan 25	638.20	Sep 16
1976	626.21	612.48	Jan 25	637.92	Aug 17
1975	626.60	612.64	Nov 19	637.62	Jun 2
1974 (92 days)	619.10	612.76	Nov 13	635.84	Oct 1

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

Monthly averages

Month	Average	Lowest	Highest
January	614.61	612.03	631.23
February	617.00	611.31	639.07
March	620.68	610.57	635.08
April	619.39	611.01	640.45
May	627.70	612.78	639.17
June	636.72	634.00	639.26
July	636.67	634.97	637.96
August	636.68	634.77	637.92
September	635.72	613.20	638.58
October	627.63	612.50	637.80
November	615.40	611.02	636.70
December	614.43	610.76	636.04

Download

Daily levels as CSV (15,421 rows; credit the original agencies listed below)