Most Monthly Precipitation in Rantoul History

This is a list of the largest monthly precipitation totals ever recorded in Rantoul, Illinois history from 1893–2023.

What Was the Wettest Month in Rantoul History?

According to NOAA records, the most precipitation that Rantoul, Illinois has ever received in a single month is 13.5 inches which occurred in June 1902.

Rantoul Most Rain in One Month

Rank	Precipitation	Month
1	13.5 inches	June 1902
2	12.8 inches	August 1977
3	12.4 inches	July 1962
4	10.8 inches	May 1908
5	10.6 inches	July 1979
6	10.5 inches	August 1975
7	10.3 inches	July 1992
8	10.3 inches	July 1971
9	10.2 inches	July 1987
10	10.0 inches	September 2008
11	9.9 inches	June 2015
12	9.9 inches	October 1949
13	9.9 inches	April 1994
14	9.7 inches	September 1970
15	9.6 inches	June 1958
16	9.4 inches	July 1981
17	9.4 inches	June 2010
18	9.0 inches	April 2011
19	8.9 inches	May 1956
20	8.9 inches	June 1998