Rapid City March 21 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of March 21.
March 21 All-Time Records
1948–2023
Highest temperature 78 °F 2016
Lowest temperature -5 °F 1955
Lowest daily high 11 °F 2002
Highest daily low 36 °F 2009
Most precipitation 0.22 inches 2005
Most snow 1.5 inches 2006
March 21 Average Weather
1991–2020 1
Average high 50.8 °F
Average low 24.6 °F
Chance precipitation 23.8%
Chance snow 14.7%
Rapid City March 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 32 19 0.15 n/a
2022 50 26 0.00 n/a
2021 53 29 0.00 n/a
2020 56 12 0.00 n/a
2019 59 24 0.00 n/a
2018 45 21 0.00 0.0
2017 38 29 0.12 0.0
2016 78 26 0.00 0.0
2015 67 27 0.00 0.0
2014 35 20 0.00 0.0
2013 45 14 0.11 1.1
2012 66 26 0.00 0.0
2011 57 30 0.00 0.0
2010 63 20 0.00 0.0
2009 73 36 0.00 0.0
2008 49 17 0.00 0.0
2007 57 30 0.00 0.0
2006 24 17 0.02 1.5
2005 38 28 0.22 n/a
2004 51 17 0.00 n/a
2003 55 25 0.00 n/a
2002 11 -4 0.00 n/a
2001 61 30 0.02 0.0
2000 47 26 0.00 0.0
1999 57 24 0.03 0.0
1998 50 25 0.00 n/a
1997 56 25 0.00 n/a
1996 53 29 0.00 0.0
1995 62 34 0.00 0.0
1994 71 24 0.00 0.0
1993 37 24 0.01 0.1
1992 37 18 0.00 0.0
1991 43 36 0.08 0.0
1990 63 34 0.04 0.0
1989 47 19 0.00 0.0
1988 73 33 0.00 0.0
1987 38 28 0.07 1.0
1986 71 29 0.00 0.0
1985 66 34 0.00 0.0
1984 52 22 0.00 0.0
1983 34 18 0.00 0.0
1982 37 10 0.00 0.0
1981 48 28 0.07 0.0
1980 53 22 0.00 0.0
1979 39 34 0.13 0.1
1978 67 31 0.00 0.0
1977 45 14 0.00 0.0
1976 45 25 0.00 0.0
1975 45 30 0.00 0.0
1974 47 19 0.00 0.0
1973 52 33 0.15 0.0
1972 63 30 0.00 0.0
1971 31 17 0.11 1.1
1970 43 17 0.00 0.0
1969 57 23 0.00 0.0
1968 33 14 0.01 0.1
1967 59 28 0.00 0.0
1966 51 30 0.14 1.2
1965 41 -3 0.00 0.0
1964 55 15 0.00 0.0
1963 55 26 0.00 0.0
1962 57 28 0.00 0.0
1961 52 29 0.00 0.0
1960 70 27 0.00 0.0
1959 69 18 0.00 0.0
1958 48 24 0.00 0.0
1957 69 33 0.00 0.0
1956 47 30 0.00 0.0
1955 24 -5 0.00 0.0
1954 48 28 0.05 0.5
1953 50 31 0.00 0.0
1952 25 13 0.00 0.0
1951 64 15 0.00 0.0
1950 45 18 0.00 0.0
1949 47 30 0.00 0.0
What's the all-time high for Rapid City on 3/21?
For the date of Mar 21, the highest temperature ever reached in Rapid City history is 78 °F which happened in 2016.
Highest Temperatures in Rapid City on March 21
Rank Temperature Year
1 78 °F 2016
2 73 °F 1988
2 73 °F 2009
4 71 °F 1994
4 71 °F 1986
6 70 °F 1960
7 69 °F 1957
7 69 °F 1959
9 67 °F 1978
9 67 °F 2015
What's the all-time low for Rapid City on 3/21?
For the date of Mar 21, the lowest temperature ever reached in Rapid City history is -5 °F which happened in 1955.
Lowest Temperatures in Rapid City on March 21
Rank Temperature Year
1 -5 °F 1955
2 -4 °F 2002
3 -3 °F 1965
4 10 °F 1982
5 12 °F 2020
6 13 °F 1952
7 14 °F 2013
7 14 °F 1977
7 14 °F 1968
10 15 °F 1964
10 15 °F 1951
Lowest High Temperatures in Rapid City on March 21
Rank Temperature Year
1 11 °F 2002
2 24 °F 1955
2 24 °F 2006
4 25 °F 1952
5 31 °F 1971
6 32 °F 2023
7 33 °F 1968
8 34 °F 1983
9 35 °F 2014
10 37 °F 1993
10 37 °F 1982
10 37 °F 1992
What's the most it has ever rained in Rapid City on 3/21?
For the date of Mar 21, the most precipitation ever recorded in Rapid City history is 0.22 inches which happened in 2005.
All-Time Most Precipitation in Rapid City on March 21
Rank Precipitation Year
1 0.22 inches 2005
2 0.15 inches 2023
2 0.15 inches 1973
4 0.14 inches 1966
5 0.13 inches 1979
6 0.12 inches 2017
7 0.11 inches 2013
7 0.11 inches 1971
9 0.08 inches 1991
10 0.07 inches 1981
10 0.07 inches 1987
All-Time Most Snow in Rapid City on March 21
Rank Precipitation Year
1 1.5 inches 2006
2 1.2 inches 1966
3 1.1 inches 2013
3 1.1 inches 1971
5 1.0 inches 1987
6 0.5 inches 1954
7 0.1 inches 1979
7 0.1 inches 1968
7 0.1 inches 1993
Weather Station Details
Years Station Coordinates
1948–2023 Rapid City Regional Airport location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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