Glenn Cunningham Lake water level history

Daily records since 1989 · Level today: 1,121.65 ft

Highest on record

1,300.01 ft

Nov 15, 1990

Lowest on record

1,100.02 ft

Sep 15, 1996

Today

1,121.65 ft

Oct 21, 2026

Years of data

since 1989

In short

Across 33 complete years, 2019 had the lowest average level (1,104.65 ft) and 1999 the highest (1,121.70 ft).

On average the lake is lowest in December (1,118.91 ft) and highest in June (1,120.24 ft).

Glenn Cunningham 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.

19961,100.02 ft on Sep 15
20081,100.87 ft on Jan 1
20041,100.91 ft on Mar 13
20201,101.00 ft on Jan 1
20191,101.00 ft on Jan 1

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (294 days)	1,121.53	1,120.97	Aug 4	1,125.65	Oct 2
2025	1,121.20	1,121.02	Jun 23	1,121.45	Aug 11
2024	1,121.20	1,120.39	Oct 29	1,123.97	May 22
2023	1,120.79	1,120.29	Nov 19	1,121.61	Feb 28
2022	1,120.99	1,119.95	Nov 2	1,121.73	Mar 23
2021	1,120.42	1,116.56	Jan 1	1,121.59	Oct 29
2020	1,107.82	1,101.00	Jan 1	1,116.54	Dec 31
2019	1,104.65	1,101.00	Jan 1	1,120.46	Apr 15
2018	1,119.48	1,101.00	Dec 9	1,123.61	Jun 21
2017	1,121.44	1,121.14	Aug 14	1,122.27	May 22
2016	1,121.51	1,120.48	Sep 9	1,122.70	May 12
2015	1,121.41	1,120.53	Sep 16	1,122.35	May 8
2014	1,121.38	1,120.89	Jan 3	1,123.06	Sep 11
2013	1,121.13	1,120.61	Jan 1	1,121.70	May 31
2012	1,120.82	1,120.01	Oct 12	1,121.48	May 6
2011	1,120.54	1,118.08	Feb 13	1,122.13	Aug 23
2010	1,121.25	1,118.16	Nov 19	1,123.52	Jun 15
2009	1,118.88	1,114.40	Mar 3	1,122.01	Aug 27
2008	1,109.43	1,100.87	Jan 1	1,116.02	Jun 15
2007 (154 days)	1,100.87	1,100.87	Jul 31	1,100.87	Jul 31
2006 (261 days)	1,119.05	1,117.14	Jul 10	1,122.66	Mar 4
2005	1,120.79	1,118.97	Nov 15	1,121.76	Apr 15
2004	1,120.63	1,100.91	Mar 13	1,123.81	Dec 27
2003	1,121.18	1,119.98	Oct 4	1,151.07	Feb 26
2002	1,121.16	1,120.76	Aug 16	1,122.05	May 20
2001 (322 days)	1,121.25	1,117.69	Sep 26	1,122.08	Mar 15
2000	1,121.17	1,108.75	Apr 18	1,121.75	Jul 5
1999	1,121.70	1,121.17	Oct 18	1,125.15	Aug 7
1998	1,121.14	1,118.82	Mar 15	1,123.75	Jul 7
1997	1,120.18	1,118.82	Aug 10	1,122.18	Feb 19
1996	1,121.15	1,100.02	Sep 15	1,121.96	Jun 24
1995	1,121.34	1,120.87	Sep 18	1,122.41	May 28
1994	1,121.33	1,120.91	Sep 20	1,123.34	Jun 23
1993	1,121.58	1,120.64	Nov 8	1,122.92	Jul 24
1992	1,121.30	1,120.28	May 10	1,121.94	May 4
1991	1,121.12	1,120.33	Dec 6	1,124.63	Jun 15
1990	1,121.57	1,119.28	Jan 1	1,300.01	Nov 15
1989 (1 days)	1,119.28	1,119.28	Dec 31	1,119.28	Dec 31

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

Monthly averages

Month	Average	Lowest	Highest
January	1,119.01	1,100.87	1,121.76
February	1,119.10	1,100.87	1,151.07
March	1,119.39	1,100.91	1,122.80
April	1,120.22	1,101.00	1,122.69
May	1,120.14	1,101.00	1,123.97
June	1,120.24	1,101.00	1,124.63
July	1,120.10	1,100.87	1,123.75
August	1,119.46	1,100.87	1,125.15
September	1,119.42	1,100.02	1,123.06
October	1,119.51	1,100.87	1,125.65
November	1,119.52	1,100.87	1,300.01
December	1,118.91	1,100.87	1,123.81

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Daily levels as CSV (13,065 rows; credit the original agencies listed below)