Most Monthly Precipitation in Springfield History

This is a list of the largest monthly precipitation totals ever recorded in Springfield, Illinois history from 1901–2024.

What Was the Wettest Month in Springfield History?

According to NOAA records, the most precipitation that Springfield, Illinois has ever received in a single month is 15.2 inches which occurred in September 1926.

Springfield Most Rain in One Month

Rank	Precipitation	Month
1	15.2 inches	September 1926
2	13.4 inches	October 1941
3	11.3 inches	October 2009
4	10.9 inches	May 2013
5	10.8 inches	August 2016
6	10.8 inches	June 1917
7	10.8 inches	July 1981
8	10.7 inches	May 1996
9	10.7 inches	September 1911
10	10.6 inches	May 1943
11	10.1 inches	June 1902
12	9.9 inches	April 1964
13	9.9 inches	May 1915
14	9.5 inches	July 2016
15	9.5 inches	July 1993
16	9.5 inches	July 2008
17	9.2 inches	June 1990
18	9.1 inches	June 2015
19	9.1 inches	April 1970
20	8.9 inches	December 1982