Most Monthly Precipitation in Rockford History

This is a list of the largest monthly precipitation totals ever recorded in Rockford, Illinois history from 1893–2024.

What Was the Wettest Month in Rockford History?

According to NOAA records, the most precipitation that Rockford, Illinois has ever received in a single month is 14.2 inches which occurred in June 2018.

Month to date though April 26, 2024: 3.5 inches

Rockford Most Rain in One Month

Rank	Precipitation	Month
1	14.2 inches	June 2018
2	14.0 inches	August 2007
3	13.6 inches	August 1987
4	11.9 inches	June 1993
5	11.8 inches	July 1952
6	11.8 inches	May 1996
7	10.7 inches	August 1936
8	10.7 inches	September 1961
9	10.6 inches	June 1926
10	10.6 inches	September 1970
11	10.3 inches	September 1941
12	10.0 inches	June 1967
13	9.9 inches	April 1973
14	9.9 inches	September 1986
15	9.7 inches	July 1996
16	9.5 inches	June 1940
17	9.4 inches	July 2010
18	9.3 inches	August 1965
19	9.2 inches	June 1990
20	9.2 inches	September 2001