Most Monthly Precipitation in Spearfish History

This is a list of the largest monthly precipitation totals ever recorded in Spearfish, South Dakota history from 1893–2024.
What Was the Wettest Month in Spearfish History?
According to NOAA records, the most precipitation that Spearfish, South Dakota has ever received in a single month is 14.1 inches which occurred in May 1982.
Month to date though March 25, 2024: 0.5 inches
Spearfish Most Rain in One Month
Rank Precipitation Month
1 14.1 inches May 1982
2 14.0 inches June 1976
3 13.1 inches May 1946
4 11.8 inches June 1964
5 10.8 inches May 2008
6 10.8 inches June 1947
7 10.1 inches May 1922
8 10.0 inches May 1962
9 10.0 inches June 1941
10 9.4 inches May 1907
11 9.1 inches June 1904
12 9.0 inches June 1984
13 8.5 inches May 2023
14 8.4 inches June 2023
15 8.3 inches June 2008
16 8.0 inches June 1963
17 7.8 inches July 1923
18 7.8 inches May 1942
19 7.8 inches May 1995
20 7.5 inches May 2013