Big Bend Reservoir water level history

Daily records since 1989 · Level today: 1,420.57 ft

Highest on record

1,421.92 ft

Jun 5, 1991

Lowest on record

1,415.02 ft

Oct 22, 1996

Today

1,420.57 ft

Oct 21, 2026

Years of data

since 1989

In short

Across 36 complete years, 1997 had the lowest average level (1,419.85 ft) and 2023 the highest (1,420.73 ft).

On average the lake is lowest in August (1,420.37 ft) and highest in February (1,420.62 ft).

Big Bend Reservoir 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.

19961,415.02 ft on Oct 22
20021,417.41 ft on May 23
19971,418.42 ft on Apr 12
20001,418.63 ft on Sep 12
19941,418.83 ft on Aug 8

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (293 days)	1,420.72	1,420.27	Jul 17	1,421.23	Jul 3
2025	1,420.71	1,420.26	Aug 1	1,421.55	Dec 28
2024	1,420.72	1,420.14	Jan 5	1,421.26	Apr 29
2023	1,420.73	1,420.18	Sep 22	1,421.24	Jun 25
2022	1,420.68	1,420.10	Sep 30	1,421.29	May 9
2021	1,420.71	1,419.61	Feb 16	1,421.21	Jan 14
2020	1,420.68	1,420.15	Jun 6	1,421.46	Jan 3
2019	1,420.56	1,419.50	Nov 5	1,421.38	Feb 4
2018	1,420.55	1,419.61	Jun 1	1,421.15	Oct 28
2017	1,420.48	1,419.51	Nov 10	1,421.24	Feb 20
2016	1,420.54	1,419.81	Sep 2	1,421.24	Dec 6
2015	1,420.55	1,419.84	Aug 21	1,421.48	Jun 22
2014	1,420.46	1,419.40	Sep 5	1,421.19	Feb 17
2013	1,420.55	1,419.53	Aug 30	1,421.25	Oct 15
2012	1,420.45	1,419.39	Aug 11	1,421.47	Oct 17
2011	1,420.20	1,419.13	Jun 1	1,421.49	Jun 23
2010	1,420.35	1,419.38	Dec 10	1,421.38	Oct 26
2009	1,420.45	1,419.80	Jul 13	1,421.24	Mar 24
2008	1,420.44	1,419.46	Aug 21	1,421.13	Dec 14
2007	1,420.52	1,419.54	Aug 3	1,421.31	May 30
2006	1,420.47	1,419.62	Aug 16	1,421.35	Aug 21
2005	1,420.52	1,419.73	Jul 16	1,421.42	Nov 28
2004	1,420.45	1,419.52	May 7	1,421.21	Dec 12
2003	1,420.37	1,419.50	Sep 25	1,421.15	Oct 6
2002	1,420.30	1,417.41	May 23	1,421.10	Oct 6
2001	1,420.47	1,419.58	Aug 31	1,421.32	Apr 16
2000	1,420.38	1,418.63	Sep 12	1,421.37	Jan 10
1999	1,420.58	1,419.68	Apr 9	1,421.75	May 6
1998	1,420.61	1,419.74	Sep 25	1,421.48	Nov 10
1997	1,419.85	1,418.42	Apr 12	1,421.20	Jan 20
1996	1,419.99	1,415.02	Oct 22	1,421.27	Feb 11
1995	1,420.54	1,419.61	Jul 21	1,421.66	May 10
1994	1,420.50	1,418.83	Aug 8	1,421.28	Mar 6
1993	1,420.59	1,419.78	Jan 8	1,421.16	Jun 13
1992	1,420.57	1,419.76	Jul 31	1,421.52	Jun 17
1991	1,420.53	1,419.14	Oct 27	1,421.92	Jun 5
1990	1,420.45	1,419.43	Jul 6	1,421.55	Apr 7
1989 (1 days)	1,420.43	1,420.43	Dec 31	1,420.43	Dec 31

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

Monthly averages

Month	Average	Lowest	Highest
January	1,420.54	1,419.42	1,421.46
February	1,420.62	1,419.55	1,421.38
March	1,420.52	1,418.96	1,421.36
April	1,420.55	1,418.42	1,421.55
May	1,420.51	1,417.41	1,421.75
June	1,420.48	1,418.09	1,421.92
July	1,420.39	1,419.37	1,421.23
August	1,420.37	1,418.83	1,421.58
September	1,420.40	1,418.63	1,421.62
October	1,420.49	1,415.02	1,421.74
November	1,420.51	1,418.88	1,421.48
December	1,420.52	1,418.95	1,421.55

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Daily levels as CSV (13,443 rows; credit the original agencies listed below)