Blue Marsh Lake water level history

Daily records since 2004 · Level today: 287.60 ft

Highest on record

308.91 ft

Sep 9, 2011

Lowest on record

281.85 ft

Sep 27, 2010

Today

287.60 ft

Oct 22, 2026

Years of data

since 2004

In short

Across 21 complete years, 2024 had the lowest average level (287.47 ft) and 2011 the highest (288.48 ft).

On average the lake is lowest in November (285.16 ft) and highest in June (290.27 ft).

Loading chart…

Measured Normal range for the date (middle 50% of past years)

Years ranked by their lowest daily level.

Year	Average	Low	Low date	High	High date
2026 (293 days)	288.45	284.90	Mar 23	291.39	Oct 12
2025	287.51	284.47	Nov 7	291.32	May 17
2024	287.47	284.40	Aug 8	292.11	Apr 5
2023	287.64	283.97	Mar 27	292.35	Dec 19
2022	287.97	284.59	Nov 3	291.63	May 8
2021	287.96	284.50	Nov 2	298.62	Sep 3
2020	287.91	284.50	Mar 12	290.94	Aug 9
2019	288.11	284.48	Oct 30	293.44	Jun 20
2018	287.79	284.47	Sep 8	296.00	Aug 5
2017	288.25	284.54	Oct 31	291.96	Jul 24
2016	287.69	283.72	Nov 26	292.45	Feb 26
2015	287.73	284.00	Mar 23	291.24	Aug 21
2014	287.91	283.93	Mar 9	295.16	May 2
2013	288.12	284.75	Feb 11	292.35	Jul 23
2012	287.78	283.10	Oct 29	292.13	Jun 2
2011	288.48	283.51	Mar 23	308.91	Sep 9
2010	287.73	281.85	Sep 27	291.18	Jul 14
2009	288.05	284.97	Dec 21	291.69	Aug 29
2008	288.37	284.85	Feb 6	293.03	Mar 9
2007	288.17	284.36	Mar 13	294.53	Mar 3
2006	288.21	283.96	Mar 16	308.25	Jun 29
2005	287.49	282.13	Oct 7	296.66	Apr 4
2004 (89 days)	286.89	284.53	Dec 6	292.35	Sep 30

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

Month	Average	Lowest	Highest
January	285.28	284.64	291.11
February	285.30	284.43	292.45
March	286.02	283.51	297.26
April	289.36	284.21	296.66
May	290.21	289.23	295.16
June	290.27	289.38	308.25
July	290.22	287.17	304.36
August	289.96	284.40	296.00
September	289.59	281.85	308.91
October	288.18	282.13	291.63
November	285.16	283.72	290.54
December	285.42	284.53	292.35

Daily levels as CSV (8,015 rows; credit the original agencies listed below)