Green Peter Lake water level history

Daily records since 1974 · Level today: 859.40 ft

Highest on record

1,014.45 ft

Apr 28, 1990

Lowest on record

772.44 ft

Nov 30, 2023

Today

859.40 ft

Oct 21, 2026

Years of data

since 1974

In short

Across 31 complete years, 2023 had the lowest average level (928.86 ft) and 1996 the highest (982.47 ft).

On average the lake is lowest in January (931.42 ft) and highest in May (1,002.88 ft).

Green Peter 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.

2023772.44 ft on Nov 30
2024777.06 ft on Nov 16
2025778.41 ft on Nov 23
2015899.06 ft on Oct 30
2021901.76 ft on Oct 22

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (292 days)	945.03	860.17	Oct 20	991.67	Mar 27
2025	931.04	778.41	Nov 23	996.92	Apr 12
2024	944.16	777.06	Nov 16	1,002.00	Jun 6
2023	928.86	772.44	Nov 30	1,008.09	May 16
2022	969.79	914.27	Jan 4	1,012.26	May 14
2021	954.48	901.76	Oct 22	993.72	May 10
2020	970.36	918.69	Dec 5	1,012.58	Jun 20
2019	956.08	902.83	Dec 9	1,014.25	Apr 9
2018	958.95	902.21	Nov 22	1,009.63	Apr 29
2017	975.31	916.30	Dec 24	1,011.46	May 18
2016	961.07	923.33	Dec 8	998.72	Apr 21
2015	947.77	899.06	Oct 30	984.39	Apr 28
2014	967.46	915.52	Nov 13	1,010.50	May 20
2013 (92 days)	949.32	925.56	Dec 31	981.48	Oct 13
2003 (272 days)	966.13	923.53	Jan 12	1,010.80	May 15
2002	969.32	922.57	Jan 24	1,010.02	Apr 15
2001	956.08	922.07	Dec 30	993.58	May 18
2000	976.51	921.77	Jan 1	1,010.39	Jun 19
1999	980.11	915.84	Jan 12	1,010.33	Jun 26
1998	980.13	923.79	Jan 6	1,012.77	May 19
1997	981.27	922.45	Jan 26	1,010.78	Jul 11
1996	982.47	925.94	Jan 29	1,011.95	Apr 24
1995	980.65	923.31	Jan 12	1,011.37	May 21
1994	976.58	924.72	Jan 1	1,011.04	Jun 15
1993	978.42	920.95	Jan 7	1,012.12	May 22
1992	966.50	922.69	Jan 1	1,008.57	May 2
1991	978.44	922.07	Jan 2	1,011.17	May 17
1990	979.39	922.66	Jan 1	1,014.45	Apr 28
1989	974.31	902.18	Feb 10	1,010.81	Jun 15
1988	979.09	922.00	Dec 28	1,012.35	Jun 1
1987	968.81	923.57	Jan 20	1,002.62	May 10
1986	977.23	922.04	Jan 21	1,010.31	May 13
1985	973.90	921.00	Jan 13	1,011.50	Jun 8
1984	978.94	922.27	Jan 20	1,011.82	Jun 7
1983 (273 days)	974.19	923.76	Jan 3	1,011.79	Jun 20
1982 (190 days)	960.52	922.80	Jan 10	1,004.27	Feb 21
1981 (108 days)	956.69	928.36	Jan 16	980.78	Oct 1
1980 (92 days)	960.72	938.41	Dec 21	980.35	Oct 1
1979 (297 days)	983.97	917.47	Jan 9	1,009.89	May 15
1978 (312 days)	967.82	923.31	Jan 27	1,009.74	Jun 29
1977 (228 days)	955.39	911.95	Feb 20	1,010.04	May 16
1976 (147 days)	942.42	915.91	Dec 25	979.60	Oct 1
1975 (92 days)	952.34	929.48	Dec 22	975.18	Dec 5
1974 (61 days)	954.08	933.53	Nov 17	984.03	Oct 1

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

Monthly averages

Month	Average	Lowest	Highest
January	931.42	913.93	1,004.90
February	948.12	902.18	1,007.66
March	976.00	922.17	1,001.16
April	994.76	962.16	1,014.45
May	1,002.88	967.15	1,012.77
June	999.28	952.63	1,012.58
July	992.58	938.32	1,011.53
August	981.63	918.39	1,011.10
September	965.52	888.27	1,002.63
October	952.43	785.50	986.45
November	936.40	772.44	989.47
December	934.21	776.78	997.71

Download

Daily levels as CSV (13,768 rows; credit the original agencies listed below)