Most Monthly Precipitation in Galesburg History

This is a list of the largest monthly precipitation totals ever recorded in Galesburg, Illinois history from 1895–2024.

What Was the Wettest Month in Galesburg History?

According to NOAA records, the most precipitation that Galesburg, Illinois has ever received in a single month is 16.6 inches which occurred in October 1941.

Galesburg Most Rain in One Month

Rank	Precipitation	Month
1	16.6 inches	October 1941
2	13.2 inches	June 2010
3	13.0 inches	May 2019
4	12.7 inches	July 1982
5	12.1 inches	July 1993
6	12.0 inches	May 2013
7	11.6 inches	September 1970
8	11.4 inches	September 2019
9	10.7 inches	August 1977
10	10.5 inches	August 1980
11	10.2 inches	September 1961
12	10.2 inches	August 1898
13	10.1 inches	May 1995
14	10.0 inches	June 1974
15	9.9 inches	September 1927
16	9.7 inches	August 1993
17	9.7 inches	September 1934
18	9.6 inches	June 1902
19	9.6 inches	May 1908
20	9.5 inches	September 2008