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Rapid City July 21 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of July 21.
July 21 All-Time Records
1948–2022
Highest temperature 106 °F 2007
Lowest temperature 49 °F 1949
Lowest daily high 59 °F 1978
Highest daily low 72 °F 2007
Most precipitation 1.2 inches 1978
Most snow none -
July 21 Average Weather
1991–2020 1
Average high 87.4 °F
Average low 58.7 °F
Chance precipitation 29.8%
Chance snow 0%
Rapid City July 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2022 97 59 0.00 n/a
2021 92 65 0.12 n/a
2020 82 58 0.00 n/a
2019 75 61 0.00 n/a
2018 88 59 0.78 0.0
2017 96 63 0.00 0.0
2016 96 71 0.00 0.0
2015 81 58 0.00 0.0
2014 96 64 0.00 0.0
2013 90 61 0.00 0.0
2012 96 66 0.21 0.0
2011 92 54 0.00 0.0
2010 82 61 0.09 0.0
2009 82 51 0.00 0.0
2008 88 60 0.00 0.0
2007 106 72 0.06 0.0
2006 82 58 0.00 0.0
2005 99 60 0.00 n/a
2004 91 64 0.00 n/a
2003 92 59 0.01 n/a
2002 97 62 0.18 n/a
2001 97 64 0.00 n/a
2000 80 54 0.28 0.0
1999 96 61 0.00 0.0
1998 77 58 0.00 n/a
1997 79 58 0.94 0.0
1996 85 58 0.00 n/a
1995 83 57 0.64 0.0
1994 86 56 0.00 0.0
1993 86 59 0.03 0.0
1992 65 50 0.98 0.0
1991 98 65 0.00 0.0
1990 68 53 0.68 0.0
1989 90 58 0.00 0.0
1988 91 51 0.00 0.0
1987 102 63 0.00 0.0
1986 81 52 0.00 0.0
1985 87 62 0.00 0.0
1984 92 67 0.00 0.0
1983 86 63 0.00 0.0
1982 90 64 0.00 0.0
1981 86 61 0.03 0.0
1980 80 52 0.00 0.0
1979 89 59 0.00 0.0
1978 59 55 1.21 0.0
1977 80 52 0.00 0.0
1976 81 60 0.00 0.0
1975 90 63 0.00 0.0
1974 95 66 0.01 0.0
1973 68 54 0.00 0.0
1972 80 55 0.03 0.0
1971 88 58 0.00 0.0
1970 89 57 0.00 0.0
1969 82 55 0.00 0.0
1968 79 57 0.00 0.0
1967 95 61 0.00 0.0
1966 90 60 0.23 0.0
1965 97 64 0.00 0.0
1964 104 71 0.00 0.0
1963 93 64 0.00 0.0
1962 87 62 0.00 0.0
1961 79 57 0.00 0.0
1960 102 71 0.00 0.0
1959 96 60 0.01 0.0
1958 83 55 0.00 0.0
1957 86 60 0.00 0.0
1956 85 58 0.00 0.0
1955 100 72 0.02 0.0
1954 99 65 0.03 0.0
1953 80 58 0.00 0.0
1952 92 57 0.00 0.0
1951 71 57 0.04 0.0
1950 78 52 0.00 0.0
1949 83 49 0.00 0.0
1948 79 52 0.03 0.0
All-Time Highest Temperatures in Rapid City on July 21
Rank Temperature Year
1 106 °F 2007
2 104 °F 1964
3 102 °F 1987
3 102 °F 1960
5 100 °F 1955
6 99 °F 2005
6 99 °F 1954
8 98 °F 1991
9 97 °F 2002
9 97 °F 2001
9 97 °F 1965
9 97 °F 2022
All-Time Lowest Temperatures in Rapid City on July 21
Rank Temperature Year
1 49 °F 1949
2 50 °F 1992
3 51 °F 1988
3 51 °F 2009
5 52 °F 1980
5 52 °F 1977
5 52 °F 1948
5 52 °F 1950
5 52 °F 1986
10 53 °F 1990
Lowest High Temperatures in Rapid City on July 21
Rank Temperature Year
1 59 °F 1978
2 65 °F 1992
3 68 °F 1990
3 68 °F 1973
5 71 °F 1951
6 75 °F 2019
7 77 °F 1998
8 78 °F 1950
9 79 °F 1948
9 79 °F 1968
9 79 °F 1961
9 79 °F 1997
All-Time Most Precipitation in Rapid City on July 21
Rank Precipitation Year
1 1.2 inches 1978
2 1.0 inches 1992
3 0.9 inches 1997
4 0.8 inches 2018
5 0.7 inches 1990
6 0.6 inches 1995
7 0.3 inches 2000
8 0.2 inches 1966
9 0.2 inches 2012
10 0.2 inches 2002
Weather Station Details
Years Station Coordinates
1948–2022 Rapid City Regional Airport location