Black Hawk Lake water level history

Daily records since 1970 · Level today: 8.06 ft

Highest on record

9.15 ft

Mar 15, 2019

Lowest on record

-0.05 ft

Jan 21, 2001

Today

8.06 ft

Oct 21, 2026

Years of data

since 1970

In short

Across 48 complete years, 1981 had the lowest average level (0.71 ft) and 2019 the highest (7.78 ft).

On average the lake is lowest in November (4.37 ft) and highest in June (4.87 ft).

Black Hawk Lake level, all years

Loading chart…

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

Lowest years

Years ranked by their lowest daily level.

2001-0.05 ft on Jan 21
20000.00 ft on Dec 29
19810.12 ft on Oct 1
19710.65 ft on Oct 14
19911.03 ft on Oct 26

Yearly highs and lows

Year	Average	Low	Low date	High	High date
2026 (293 days)	7.69	7.35	Aug 3	8.08	Apr 12
2025	7.59	7.25	Feb 9	8.09	Aug 10
2024	6.93	5.93	Mar 19	7.88	May 21
2023	6.45	5.79	Dec 15	7.31	Apr 11
2022	6.39	5.96	Dec 6	6.93	Jul 16
2021	6.66	6.24	Oct 21	7.12	Apr 8
2020	7.27	6.44	Dec 28	8.05	May 28
2019	7.78	7.41	Sep 6	9.15	Mar 15
2018	7.76	7.37	Aug 4	8.67	Jun 28
2017	7.60	7.12	Aug 14	8.39	May 24
2016	7.78	7.47	Dec 22	8.43	May 3
2015	7.73	7.37	Mar 4	9.02	Dec 16
2014	6.70	5.66	Feb 12	7.94	Oct 8
2013	5.93	4.60	Jan 24	7.81	Jun 12
2012	5.92	4.45	Dec 9	6.93	May 10
2011	7.23	6.36	Nov 26	7.90	Feb 21
2010	7.66	7.34	Nov 4	8.58	Mar 16
2009	7.58	7.25	Sep 29	7.98	Jun 21
2008	7.67	7.38	Oct 11	9.13	Jun 9
2007	7.64	7.17	Jul 18	8.80	May 7
2006	7.03	6.45	Aug 1	7.69	May 3
2005	7.21	6.35	Nov 16	8.05	May 15
2004	7.29	6.77	Oct 30	8.32	Jun 18
2003	7.24	6.69	Oct 31	8.14	Jul 11
2002	7.29	6.98	Aug 3	7.78	May 13
2001	6.53	-0.05	Jan 21	8.76	May 4
2000	0.99	0.00	Dec 29	1.82	Mar 8
1999	2.23	1.42	Nov 19	3.15	Apr 24
1998	2.46	2.02	Jan 1	3.44	Jun 25
1997	2.25	1.84	Aug 26	2.95	Feb 20
1996	2.26	1.76	Jan 15	4.28	Jun 22
1995	2.20	1.78	Sep 17	2.77	May 29
1994 (74 days)	2.26	2.08	Oct 5	2.38	Dec 7
1993 (54 days)	2.33	2.29	Feb 1	2.38	Jan 1
1992	2.28	1.78	Jul 2	2.60	Apr 23
1991	2.09	1.03	Oct 26	3.23	Jun 17
1990	1.93	1.11	Mar 4	3.41	May 26
1989	1.88	1.17	Dec 27	2.43	Mar 12
1988	2.22	1.90	Sep 27	2.81	Jul 27
1987	2.36	2.12	Aug 6	2.83	Apr 17
1986	2.38	1.85	Jan 3	2.97	May 12
1985	1.97	1.45	Aug 27	2.52	Jan 1
1984	2.30	1.49	Oct 3	3.31	May 2
1983	2.47	1.95	Sep 13	3.17	Jun 22
1982 (327 days)	2.23	0.54	Feb 3	2.90	May 28
1981	0.71	0.12	Oct 1	1.27	Jan 1
1980	1.92	1.28	Dec 25	2.43	Apr 5
1979	2.34	1.96	Oct 16	3.96	Mar 20
1978 (258 days)	1.68	0.07	Jun 20	2.79	Sep 17
1975 (272 days)	1.98	1.38	Sep 29	2.60	Apr 28
1974	2.19	1.53	Oct 26	3.27	May 20
1973	2.67	2.05	Sep 7	3.36	Mar 3
1972	2.33	1.19	Jan 22	3.41	Jul 19
1971	1.78	0.65	Oct 14	3.44	Feb 20
1970 (241 days)	2.01	1.54	Sep 13	2.60	Apr 25

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

Monthly averages

Month	Average	Lowest	Highest
January	4.47	-0.05	7.91
February	4.56	0.54	8.08
March	4.79	1.05	9.15
April	4.85	0.61	8.66
May	4.85	0.85	8.80
June	4.87	0.07	9.13
July	4.74	0.50	8.33
August	4.56	0.36	8.60
September	4.43	0.16	8.44
October	4.39	0.09	8.14
November	4.37	0.12	8.30
December	4.41	0.00	9.02

Download

Daily levels as CSV (18,926 rows; credit the original agencies listed below)