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Rapid City December 21 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of December 21.
December 21 All-Time Records
1948–2022
Highest temperature 65 °F 1991
Lowest temperature -25 °F 1989
Lowest daily high -12 °F 1990
Highest daily low 33 °F 2003
Most precipitation 0.2 inches 1966
Most snow 2.1 inches 1968
December 21 Average Weather
1991–2020 1
Average high 36.8 °F
Average low 13.1 °F
Chance precipitation 18.1%
Chance snow 17.8%
Rapid City December 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2021 44 21 0.00 n/a
2020 50 24 0.00 n/a
2019 49 26 0.00 n/a
2018 55 25 0.00 0.0
2017 20 0 0.03 0.9
2016 43 13 0.00 0.0
2015 42 20 0.00 0.0
2014 50 20 0.00 0.0
2013 17 2 0.00 0.2
2012 54 15 0.00 0.0
2011 39 19 0.12 0.7
2010 23 5 0.00 0.0
2009 34 23 0.00 0.1
2008 7 -11 0.00 0.0
2007 43 17 0.03 1.0
2006 40 17 0.00 0.0
2005 60 27 0.00 0.0
2004 21 -2 0.01 n/a
2003 48 33 0.06 n/a
2002 32 11 0.00 n/a
2001 45 23 0.00 n/a
2000 11 -10 0.00 0.0
1999 31 7 0.03 0.6
1998 7 -22 0.00 0.0
1997 37 14 0.00 n/a
1996 29 -1 n/a n/a
1995 24 12 0.05 0.8
1994 58 32 0.00 0.0
1993 32 22 0.00 0.0
1992 38 19 0.00 0.0
1991 65 19 0.00 0.0
1990 -12 -23 0.01 0.5
1989 -10 -25 0.00 0.0
1988 49 20 0.00 0.0
1987 47 13 0.00 0.0
1986 52 20 0.00 0.0
1985 49 29 0.00 0.0
1984 35 14 0.00 0.0
1983 -4 -25 0.00 0.0
1982 53 28 0.00 0.0
1981 40 24 0.00 0.0
1980 30 10 0.00 0.0
1979 48 24 0.00 0.0
1978 42 15 0.00 0.0
1977 39 14 0.00 0.0
1976 48 12 0.00 0.0
1975 47 20 0.00 0.0
1974 50 19 0.00 0.0
1973 41 25 0.00 0.0
1972 53 26 0.00 0.0
1971 31 13 0.00 0.0
1970 7 -11 0.00 0.0
1969 39 19 0.02 0.0
1968 13 2 0.13 2.1
1967 13 -5 0.01 0.1
1966 36 18 0.17 1.4
1965 58 26 0.00 0.0
1964 53 21 0.00 0.0
1963 8 4 0.01 0.2
1962 46 19 0.00 0.0
1961 55 26 0.00 0.0
1960 10 -4 0.01 0.1
1959 35 14 0.00 0.0
1958 55 32 0.00 0.0
1957 60 31 0.00 0.0
1956 46 26 0.00 0.0
1955 50 13 0.00 0.0
1954 57 31 0.00 0.0
1953 32 5 0.02 0.1
1952 32 20 0.08 0.7
1951 27 -17 0.00 0.0
1950 57 28 0.00 0.0
1949 24 -5 0.00 0.0
1948 35 13 0.00 0.0
All-Time Highest Temperatures in Rapid City on December 21
Rank Temperature Year
1 65 °F 1991
2 60 °F 1957
2 60 °F 2005
4 58 °F 1965
4 58 °F 1994
6 57 °F 1954
6 57 °F 1950
8 55 °F 1958
8 55 °F 1961
8 55 °F 2018
All-Time Lowest Temperatures in Rapid City on December 21
Rank Temperature Year
1 -25 °F 1983
1 -25 °F 1989
3 -23 °F 1990
4 -22 °F 1998
5 -17 °F 1951
6 -11 °F 2008
6 -11 °F 1970
8 -10 °F 2000
9 -5 °F 1949
9 -5 °F 1967
Lowest High Temperatures in Rapid City on December 21
Rank Temperature Year
1 -12 °F 1990
2 -10 °F 1989
3 -4 °F 1983
4 7 °F 1998
4 7 °F 2008
4 7 °F 1970
7 8 °F 1963
8 10 °F 1960
9 11 °F 2000
10 13 °F 1968
10 13 °F 1967
All-Time Most Precipitation in Rapid City on December 21
Rank Precipitation Year
1 0.2 inches 1966
2 0.1 inches 1968
3 0.1 inches 2011
4 0.1 inches 1952
5 0.1 inches 2003
6 0.1 inches 1995
7 0.0 inches 2017
7 0.0 inches 1999
7 0.0 inches 2007
10 0.0 inches 1953
10 0.0 inches 1969
All-Time Most Snow in Rapid City on December 21
Rank Precipitation Year
1 2.1 inches 1968
2 1.4 inches 1966
3 1.0 inches 2007
4 0.9 inches 2017
5 0.8 inches 1995
6 0.7 inches 1952
6 0.7 inches 2011
8 0.6 inches 1999
9 0.5 inches 1990
10 0.2 inches 2013
10 0.2 inches 1963
Weather Station Details
Years Station Coordinates
1948–2022 Rapid City Regional Airport location