Upper St Anthony Falls Pool water level history

Daily records since 1990 · Level today: 798.97 ft

Highest on record

803.20 ft

Apr 10, 1997

Lowest on record

796.62 ft

Oct 20, 2023

Today

798.97 ft

Oct 21, 2026

Years of data

since 1990

In short

Across 32 complete years, 2012 had the lowest average level (798.67 ft) and 1993 the highest (799.89 ft).

On average the lake is lowest in February (798.86 ft) and highest in April (800.33 ft).

Loading chart…

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

Years ranked by their lowest daily level.

Year	Average	Low	Low date	High	High date
2026 (288 days)	798.51	797.11	Oct 6	800.15	May 4
2025	798.87	797.89	Dec 4	800.54	Jul 1
2024	799.56	797.93	Dec 12	801.60	Jun 25
2023	799.12	796.62	Oct 20	802.69	Apr 20
2022	799.32	797.01	Nov 2	802.65	May 18
2021	799.59	798.74	Dec 7	801.99	Apr 16
2020	799.10	796.88	Aug 13	801.77	Apr 7
2019	799.44	797.85	Aug 17	802.32	Mar 30
2018	799.31	798.06	Mar 2	801.79	Apr 27
2017	799.76	798.28	Dec 26	801.65	Oct 10
2015 (118 days)	798.67	797.56	Feb 12	800.76	May 29
2014 (298 days)	799.77	798.17	Jan 17	802.36	Jun 8
2013 (324 days)	799.73	798.49	Jan 30	802.19	Jun 29
2012	798.67	796.85	Oct 2	801.80	Jun 2
2011	799.10	797.35	Dec 7	802.03	Apr 11
2010	799.02	797.49	Aug 28	801.89	Mar 19
2009	799.43	797.80	Sep 9	802.12	Mar 26
2008	799.45	798.51	Dec 9	801.54	May 3
2007	799.44	797.78	Aug 13	802.52	Apr 4
2006	799.24	797.59	Jul 18	801.28	Apr 7
2005	799.86	798.65	Aug 15	801.69	Jun 17
2004	799.54	798.90	Jul 26	800.96	Jun 13
2003	799.32	797.39	Sep 5	801.56	Jun 30
2002	799.81	798.74	Dec 24	801.66	Jul 13
2001	799.67	798.04	Aug 7	802.61	Apr 19
2000	799.01	797.52	Aug 2	800.31	Mar 3
1999	799.85	798.73	Dec 21	802.26	May 20
1998	799.14	797.48	Aug 18	800.53	Jun 30
1997	799.47	798.33	Dec 31	803.20	Apr 10
1996	799.15	797.57	Sep 3	801.58	Apr 23
1995	799.39	798.10	Dec 11	801.71	Mar 17
1994	799.68	797.74	Aug 31	801.98	May 5
1993	799.89	798.41	Mar 6	801.98	Jul 11
1992	799.18	798.03	Aug 25	801.00	Mar 14
1991	799.71	798.19	Jan 3	801.72	May 11
1990	799.08	798.00	Aug 17	800.67	Mar 16

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

Month	Average	Lowest	Highest
January	798.94	797.35	800.85
February	798.86	797.32	800.80
March	799.34	797.42	802.32
April	800.33	797.78	803.20
May	800.20	798.10	802.65
June	799.74	797.54	802.36
July	799.41	797.51	802.06
August	798.92	796.88	800.59
September	798.95	797.21	800.90
October	799.27	796.62	801.65
November	799.35	797.01	800.69
December	799.06	797.35	800.54

Daily levels as CSV (12,668 rows; credit the original agencies listed below)