Peoria Lake water level history

Daily records since 2011 · Level today: 440.02 ft

Highest on record

1,447.50 ft

Mar 30, 2011

Lowest on record

438.24 ft

Jun 28, 2020

Today

440.02 ft

Oct 21, 2026

Years of data

since 2011

In short

Across 14 complete years, 2025 had the lowest average level (440.08 ft) and 2019 the highest (443.77 ft).

On average the lake is lowest in September (440.24 ft) and highest in April (447.24 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 (294 days)	441.40	438.78	Sep 28	448.12	Jun 25
2025	440.08	438.81	Mar 21	441.51	Apr 11
2024	441.13	438.68	Mar 26	448.94	Feb 2
2023	440.49	438.61	Feb 15	444.77	Mar 10
2022	440.76	438.36	Feb 18	446.42	Apr 9
2021	440.75	438.56	Oct 16	447.09	Jul 4
2020	441.94	438.24	Jun 28	454.87	May 22
2019	443.77	438.52	Sep 22	454.99	May 6
2018	441.05	438.69	Jun 7	452.10	Feb 28
2017	441.49	438.59	Jul 2	450.51	May 5
2016	441.11	438.79	Jun 29	454.09	Jan 3
2015	442.09	438.75	Mar 30	454.62	Jun 30
2014	440.94	438.65	Jan 18	446.42	Mar 17
2013	441.97	438.87	Feb 9	456.44	Apr 23
2012	440.25	438.78	Feb 7	443.96	May 12
2011 (277 days)	457.80	438.81	Jul 31	1,447.50	Mar 30

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

Month	Average	Lowest	Highest
January	441.07	438.65	454.09
February	441.09	438.36	452.10
March	446.07	438.68	1,447.50
April	447.24	438.56	1,445.35
May	443.35	438.71	454.99
June	442.57	438.24	454.62
July	441.74	438.59	454.62
August	440.30	438.79	445.10
September	440.24	438.52	444.96
October	440.36	438.56	447.21
November	440.45	438.85	447.14
December	440.40	438.57	451.63

Daily levels as CSV (5,685 rows; credit the original agencies listed below)