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Rapid City May 20 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of May 20.
May 20 All-Time Records
1948–2022
Highest temperature 92 °F 1964
Lowest temperature 25 °F 2003
Lowest daily high 39 °F 2019
Highest daily low 59 °F 1991
Most precipitation 1.5 inches 1957
Most snow none -
May 20 Average Weather
1991–2020 1
Average high 68.3 °F
Average low 43.5 °F
Chance precipitation 43.4%
Chance snow 1.0%
Rapid City May 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2022 48 31 0.01 n/a
2021 84 49 0.38 n/a
2020 80 54 0.01 n/a
2019 39 32 0.61 n/a
2018 60 35 0.00 0.0
2017 60 36 0.00 0.0
2016 73 52 0.05 0.0
2015 57 35 0.01 0.0
2014 68 49 0.00 0.0
2013 53 46 0.24 0.0
2012 71 37 0.00 0.0
2011 66 47 0.43 0.0
2010 68 42 0.03 0.0
2009 77 52 0.02 0.0
2008 75 41 0.00 0.0
2007 83 53 0.29 0.0
2006 80 51 0.14 0.0
2005 84 58 0.00 n/a
2004 61 48 0.03 n/a
2003 61 25 0.00 n/a
2002 67 41 0.00 n/a
2001 59 41 0.04 n/a
2000 68 46 0.00 0.0
1999 71 43 0.00 0.0
1998 78 49 0.01 n/a
1997 70 32 0.00 0.0
1996 62 40 0.18 0.0
1995 66 40 0.00 0.0
1994 75 53 0.22 0.0
1993 66 35 0.00 0.0
1992 90 57 0.00 0.0
1991 80 59 0.00 0.0
1990 65 47 1.01 0.0
1989 75 37 0.00 0.0
1988 63 44 0.26 0.0
1987 57 39 0.98 0.0
1986 77 43 0.00 0.0
1985 80 43 0.00 0.0
1984 87 47 0.02 0.0
1983 64 35 0.21 0.0
1982 53 48 0.53 0.0
1981 71 46 0.00 0.0
1980 79 46 0.00 0.0
1979 64 43 0.00 0.0
1978 66 40 0.00 0.0
1977 66 39 0.18 0.0
1976 72 47 0.14 0.0
1975 45 37 0.02 0.0
1974 68 40 0.00 0.0
1973 83 50 0.00 0.0
1972 75 53 0.04 0.0
1971 70 32 0.00 0.0
1970 77 49 0.00 0.0
1969 57 42 0.00 0.0
1968 60 26 0.00 0.0
1967 71 36 0.00 0.0
1966 76 41 0.00 0.0
1965 86 53 0.00 0.0
1964 92 59 0.00 0.0
1963 56 35 0.00 0.0
1962 58 51 0.01 0.0
1961 72 40 0.00 0.0
1960 70 36 0.00 0.0
1959 47 33 0.85 0.0
1958 79 47 0.16 0.0
1957 66 46 1.51 0.0
1956 81 54 0.00 0.0
1955 84 53 0.00 0.0
1954 91 55 0.00 0.0
1953 59 39 0.09 0.0
1952 67 46 0.07 0.0
1951 55 44 0.32 0.0
1950 65 43 0.00 0.0
1949 63 37 0.00 0.0
1948 73 59 0.00 0.0
All-Time Highest Temperatures in Rapid City on May 20
Rank Temperature Year
1 92 °F 1964
2 91 °F 1954
3 90 °F 1992
4 87 °F 1984
5 86 °F 1965
6 84 °F 2005
6 84 °F 1955
6 84 °F 2021
9 83 °F 2007
9 83 °F 1973
All-Time Lowest Temperatures in Rapid City on May 20
Rank Temperature Year
1 25 °F 2003
2 26 °F 1968
3 31 °F 2022
4 32 °F 1997
4 32 °F 1971
4 32 °F 2019
7 33 °F 1959
8 35 °F 2018
8 35 °F 1993
8 35 °F 1983
8 35 °F 2015
8 35 °F 1963
Lowest High Temperatures in Rapid City on May 20
Rank Temperature Year
1 39 °F 2019
2 45 °F 1975
3 47 °F 1959
4 48 °F 2022
5 53 °F 1982
5 53 °F 2013
7 55 °F 1951
8 56 °F 1963
9 57 °F 1987
9 57 °F 2015
9 57 °F 1969
All-Time Most Precipitation in Rapid City on May 20
Rank Precipitation Year
1 1.5 inches 1957
2 1.0 inches 1990
3 1.0 inches 1987
4 0.9 inches 1959
5 0.6 inches 2019
6 0.5 inches 1982
7 0.4 inches 2011
8 0.4 inches 2021
9 0.3 inches 1951
10 0.3 inches 2007
Weather Station Details
Years Station Coordinates
1948–2022 Rapid City Regional Airport location