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Rapid City May Precipitation Totals

A time series of total precipitation in the month of May in Rapid City, South Dakota from 1948–2023.

Rainiest May in Rapid City History

The rainiest May in Rapid City, South Dakota history happened in 1996, with 8.18 inches of total precipitation.

Driest May in Rapid City History

The driest May in Rapid City, South Dakota history happened in 1966, with just 0.33 inches of total precipitation.

Rapid City Average May Precipitation by Year

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Year	Precipitation (inches)
2023	5.66
2022	2.58
2021	2.48
2020	2.26
2019	7.80
2018	4.04
2017	1.16
2016	0.84
2015	6.86
2014	1.54
2013	3.16
2012	2.12
2011	5.88
2010	5.19
2009	0.94
2008	7.24
2007	2.93
2006	1.82
2005	5.30
2004	2.55
2003	1.32
2002	1.61
2001	1.73
2000	2.40
1999	4.49
1998	2.34
1997	5.35
1996	8.18
1995	4.03
1994	1.47
1993	2.16
1992	2.47
1991	4.40
1990	4.87
1989	1.40
1988	3.25
1987	3.39
1986	1.43
1985	1.24
1984	1.57
1983	2.18
1982	6.50
1981	2.81
1980	1.58
1979	1.17
1978	3.12
1977	2.49
1976	2.74
1975	1.23
1974	1.32
1973	2.37
1972	3.28
1971	3.70
1970	2.41
1969	2.20
1968	1.68
1967	3.20
1966	0.33
1965	6.97
1964	2.52
1963	1.18
1962	6.90
1961	1.29
1960	2.23
1959	3.25
1958	1.04
1957	7.05
1956	2.09
1955	1.70
1954	2.68
1953	1.68
1952	3.75
1951	1.87
1950	2.43
1949	1.63
1948	1.67

Its possible for precipitation totals to include both rain and melted snowfall
Months with more than 10% missing data are excluded