Most Monthly Precipitation in Sisseton History

This is a list of the largest monthly precipitation totals ever recorded in Sisseton, South Dakota history from 1900–2024.

What Was the Wettest Month in Sisseton History?

According to NOAA records, the most precipitation that Sisseton, South Dakota has ever received in a single month is 9.8 inches which occurred in May 1965.

Month to date though April 22, 2024: 1.7 inches

Sisseton Most Rain in One Month

Rank	Precipitation	Month
1	9.8 inches	May 1965
2	9.3 inches	June 2014
3	9.2 inches	May 1954
4	9.1 inches	June 1939
5	9.1 inches	August 2021
6	9.0 inches	May 1962
7	8.9 inches	August 1905
8	8.5 inches	June 2005
9	8.4 inches	July 1903
10	8.3 inches	July 1993
11	8.1 inches	July 1962
12	8.0 inches	July 1912
13	8.0 inches	October 1998
14	7.7 inches	May 1905
15	7.6 inches	May 1972
16	7.3 inches	July 2011
17	7.3 inches	April 1986
18	7.2 inches	June 1948
19	7.2 inches	October 2009
20	7.2 inches	August 1900