Most Monthly Precipitation in Summit History

This is a list of the largest monthly precipitation totals ever recorded in Summit, South Dakota history from 1956–2024.

What Was the Wettest Month in Summit History?

According to NOAA records, the most precipitation that Summit, South Dakota has ever received in a single month is 9.4 inches which occurred in June 1971.

Summit Most Rain in One Month

Rank	Precipitation	Month
1	9.4 inches	June 1971
2	9.3 inches	May 1962
3	9.3 inches	July 1993
4	9.0 inches	July 1994
5	8.4 inches	July 2019
6	8.2 inches	July 1963
7	8.0 inches	September 2004
8	7.8 inches	May 1957
9	7.2 inches	July 2016
10	7.2 inches	May 1972
11	7.1 inches	August 2017
12	7.1 inches	June 1984
13	7.0 inches	July 1995
13	7.0 inches	August 2021
15	6.9 inches	October 2013
15	6.9 inches	October 2009
17	6.9 inches	June 2014
18	6.9 inches	June 1992
19	6.9 inches	June 1993
20	6.9 inches	September 2007