William (Bill) Dannelly Lake water level history

Daily records since 2001 · Level today: 80.46 ft

Highest on record

80.77 ft

Nov 28, 2001

Lowest on record

77.16 ft

May 28, 2007

Today

80.46 ft

Oct 21, 2026

Years of data

since 2001

In short

Across 19 complete years, 2007 had the lowest average level (78.82 ft) and 2024 the highest (80.25 ft).

On average the lake is lowest in August (79.81 ft) and highest in February (80.14 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 (291 days)	80.24	79.63	Aug 7	80.76	Jun 9
2025	80.23	78.75	Apr 30	80.71	Apr 1
2024	80.25	79.30	Aug 22	80.70	Jun 16
2023	80.15	79.34	Dec 30	80.52	Dec 17
2022	80.14	78.76	Sep 5	80.61	Feb 6
2021	80.16	78.96	May 28	80.59	Mar 16
2020	80.05	79.20	Jun 18	80.70	Feb 15
2019	80.06	78.93	Dec 11	80.70	Jan 26
2018	80.03	79.01	Jun 27	80.67	Jan 23
2017	80.03	79.00	Nov 30	80.62	Dec 12
2016	80.01	79.06	Jun 26	80.60	Feb 6
2015	79.88	78.54	Oct 22	80.76	Dec 30
2014	79.91	78.10	Aug 8	80.66	Mar 29
2013	79.94	78.15	Oct 18	80.70	Feb 12
2012	79.89	78.46	Jan 2	80.61	Feb 4
2011	79.80	77.99	Jan 13	80.58	Feb 19
2010	80.04	78.64	Dec 5	80.58	Feb 6
2009	79.96	78.34	Jul 6	80.59	Dec 25
2008	79.64	77.42	Jun 29	80.48	Feb 27
2007	78.82	77.16	May 28	80.51	Jan 24
2006 (93 days)	79.94	79.08	Oct 16	80.45	Nov 11
2002 (272 days)	79.89	78.04	Sep 3	80.72	Jan 13
2001 (93 days)	79.98	79.38	Oct 8	80.77	Nov 28

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

Month	Average	Lowest	Highest
January	80.06	77.99	80.72
February	80.14	79.03	80.70
March	80.12	79.03	80.66
April	80.08	78.52	80.71
May	79.96	77.16	80.64
June	79.82	77.27	80.76
July	79.88	77.52	80.59
August	79.81	77.82	80.56
September	79.84	78.04	80.68
October	79.91	78.15	80.66
November	79.89	77.29	80.77
December	79.96	77.35	80.76

Daily levels as CSV (7,666 rows; credit the original agencies listed below)