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Rapid City October 21 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of October 21.
October 21 All-Time Records
1948–2022
Highest temperature 89 °F 1992
Lowest temperature 19 °F 1987
Lowest daily high 34 °F 2020
Highest daily low 48 °F 2003
Most precipitation 0.3 inches 2020
Most snow none -
October 21 Average Weather
1991–2020 1
Average high 58.9 °F
Average low 31.8 °F
Chance precipitation 22.1%
Chance snow 5.8%
Rapid City October 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2021 58 25 0.00 n/a
2020 34 29 0.30 n/a
2019 49 32 0.00 n/a
2018 67 37 0.00 0.0
2017 58 32 0.00 0.0
2016 71 32 0.00 0.0
2015 60 37 0.00 0.0
2014 82 47 0.00 0.0
2013 58 28 0.02 0.0
2012 58 45 0.00 0.0
2011 65 40 0.00 0.0
2010 73 33 0.00 0.0
2009 42 34 0.00 0.0
2008 55 40 0.12 0.0
2007 52 29 0.00 0.0
2006 36 28 0.01 0.0
2005 52 34 0.00 n/a
2004 65 44 0.00 n/a
2003 83 48 0.00 n/a
2002 48 25 0.02 n/a
2001 64 32 0.00 n/a
2000 81 46 0.00 0.0
1999 72 43 0.00 0.0
1998 61 35 0.00 0.0
1997 49 25 0.00 0.0
1996 46 22 0.00 n/a
1995 63 27 0.00 0.0
1994 69 39 0.07 0.0
1993 67 25 0.00 0.0
1992 89 41 0.00 0.0
1991 75 37 0.00 0.0
1990 59 24 0.00 0.0
1989 75 36 0.00 0.0
1988 63 38 0.00 0.0
1987 68 19 0.00 0.0
1986 59 44 0.00 0.0
1985 78 40 0.00 0.0
1984 42 23 0.00 0.0
1983 57 30 0.00 0.0
1982 60 27 0.00 0.0
1981 35 22 0.00 0.0
1980 63 39 0.00 0.0
1979 42 33 0.15 0.0
1978 70 39 0.03 0.0
1977 50 41 0.08 0.0
1976 50 24 0.00 0.0
1975 59 33 0.00 0.0
1974 84 45 0.00 0.0
1973 74 45 0.00 0.0
1972 46 34 0.00 0.0
1971 62 36 0.00 0.0
1970 69 35 0.00 0.0
1969 61 35 0.00 0.0
1968 62 31 0.00 0.0
1967 83 31 0.00 0.0
1966 62 36 0.00 0.0
1965 69 29 0.00 0.0
1964 72 44 0.00 0.0
1963 71 47 0.00 0.0
1962 73 44 0.00 0.0
1961 69 41 0.00 0.0
1960 69 40 0.00 0.0
1959 61 35 0.00 0.0
1958 46 35 0.16 0.0
1957 56 37 0.00 0.0
1956 79 38 0.00 0.0
1955 72 39 0.00 0.0
1954 67 38 0.00 0.0
1953 52 38 0.12 0.0
1952 73 35 0.00 0.0
1951 34 29 0.00 0.0
1950 44 36 0.00 0.0
1949 42 21 0.00 0.0
1948 72 34 0.00 0.0
All-Time Highest Temperatures in Rapid City on October 21
Rank Temperature Year
1 89 °F 1992
2 84 °F 1974
3 83 °F 1967
3 83 °F 2003
5 82 °F 2014
6 81 °F 2000
7 79 °F 1956
8 78 °F 1985
9 75 °F 1989
9 75 °F 1991
All-Time Lowest Temperatures in Rapid City on October 21
Rank Temperature Year
1 19 °F 1987
2 21 °F 1949
3 22 °F 1996
3 22 °F 1981
5 23 °F 1984
6 24 °F 1976
6 24 °F 1990
8 25 °F 1993
8 25 °F 2002
8 25 °F 1997
Lowest High Temperatures in Rapid City on October 21
Rank Temperature Year
1 34 °F 2020
1 34 °F 1951
3 35 °F 1981
4 36 °F 2006
5 42 °F 2009
5 42 °F 1984
5 42 °F 1979
5 42 °F 1949
9 44 °F 1950
10 46 °F 1972
10 46 °F 1996
10 46 °F 1958
All-Time Most Precipitation in Rapid City on October 21
Rank Precipitation Year
1 0.3 inches 2020
2 0.2 inches 1958
3 0.1 inches 1979
4 0.1 inches 1953
4 0.1 inches 2008
6 0.1 inches 1977
7 0.1 inches 1994
8 0.0 inches 1978
9 0.0 inches 2002
9 0.0 inches 2013
Weather Station Details
Years Station Coordinates
1948–2022 Rapid City Regional Airport location