Most Monthly Precipitation in Mandan History

This is a list of the largest monthly precipitation totals ever recorded in Mandan, North Dakota history from 1913–2024.

What Was the Wettest Month in Mandan History?

According to NOAA records, the most precipitation that Mandan, North Dakota has ever received in a single month is 13.4 inches which occurred in July 1993.

Mandan Most Rain in One Month

Rank	Precipitation	Month
1	13.4 inches	July 1993
2	10.7 inches	June 1914
3	8.9 inches	July 2001
4	7.7 inches	June 1947
5	7.4 inches	June 1943
6	7.3 inches	June 1925
6	7.3 inches	May 2013
8	7.0 inches	July 1979
9	6.9 inches	June 2009
10	6.8 inches	May 1995
11	6.7 inches	May 1927
12	6.6 inches	June 1953
13	6.4 inches	May 1999
14	6.4 inches	April 1975
15	6.3 inches	June 1915
16	6.3 inches	July 1928
17	6.1 inches	May 2003
18	6.1 inches	August 1999
19	6.1 inches	August 1951
20	6.1 inches	June 1960