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Rapid City September 30 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of September 30.
September 30 All-Time Records
1948–2022
Highest temperature 93 °F 1989
Lowest temperature 25 °F 1985
Lowest daily high 42 °F 1985
Highest daily low 59 °F 1963
Most precipitation 0.6 inches 2014
Most snow 0.5 inches 1985
September 30 Average Weather
1991–2020 1
Average high 68.7 °F
Average low 40.3 °F
Chance precipitation 22.9%
Chance snow 2.7%
Rapid City September 30 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2021 70 46 0.00 n/a
2020 63 44 0.00 n/a
2019 53 39 0.13 n/a
2018 44 39 0.01 0.0
2017 80 52 0.00 0.0
2016 72 51 0.00 0.0
2015 79 48 0.00 0.0
2014 65 48 0.56 0.0
2013 87 47 0.00 0.0
2012 81 51 0.00 0.0
2011 80 35 0.00 0.0
2010 74 39 0.00 0.0
2009 74 43 0.03 0.0
2008 78 38 0.00 0.0
2007 67 43 0.01 0.0
2006 86 45 0.00 0.0
2005 87 49 0.00 n/a
2004 69 49 0.02 n/a
2003 61 34 0.00 n/a
2002 76 51 0.00 n/a
2001 78 46 0.00 n/a
2000 77 52 0.00 0.0
1999 61 40 0.00 0.0
1998 60 37 0.00 0.0
1997 81 41 0.00 0.0
1996 79 47 0.00 0.0
1995 69 42 0.00 0.0
1994 64 52 0.00 0.0
1993 79 44 0.00 0.0
1992 89 53 0.00 0.0
1991 79 44 0.00 0.0
1990 78 39 0.00 0.0
1989 93 55 0.00 0.0
1988 79 36 0.00 0.0
1987 82 43 0.00 0.0
1986 65 34 0.00 0.0
1985 42 25 0.05 0.5
1984 62 31 0.00 0.0
1983 63 48 0.15 0.0
1982 45 39 0.36 0.0
1981 64 41 0.03 0.0
1980 91 45 0.00 0.0
1979 87 50 0.00 0.0
1978 80 36 0.00 0.0
1977 50 44 0.42 0.0
1976 86 49 0.00 0.0
1975 59 33 0.00 0.0
1974 65 25 0.00 0.0
1973 79 39 0.00 0.0
1972 78 40 0.00 0.0
1971 68 47 0.00 0.0
1970 84 43 0.00 0.0
1969 81 51 0.25 0.0
1968 83 38 0.00 0.0
1967 93 52 0.00 0.0
1966 52 31 0.02 0.0
1965 61 40 0.00 0.0
1964 77 43 0.00 0.0
1963 92 59 0.00 0.0
1962 52 42 0.41 0.0
1961 50 26 0.00 0.0
1960 78 34 0.00 0.0
1959 56 25 0.00 0.0
1958 53 28 0.00 0.0
1957 84 55 0.00 0.0
1956 84 43 0.00 0.0
1955 65 37 0.00 0.0
1954 46 38 0.00 0.0
1953 91 43 0.00 0.0
1952 84 54 0.00 0.0
1951 87 48 0.00 0.0
1950 45 34 0.04 0.0
1949 76 49 0.00 0.0
1948 61 44 0.00 0.0
All-Time Highest Temperatures in Rapid City on September 30
Rank Temperature Year
1 93 °F 1967
1 93 °F 1989
3 92 °F 1963
4 91 °F 1980
4 91 °F 1953
6 89 °F 1992
7 87 °F 2013
7 87 °F 1979
7 87 °F 1951
7 87 °F 2005
All-Time Lowest Temperatures in Rapid City on September 30
Rank Temperature Year
1 25 °F 1974
1 25 °F 1959
1 25 °F 1985
4 26 °F 1961
5 28 °F 1958
6 31 °F 1966
6 31 °F 1984
8 33 °F 1975
9 34 °F 1960
9 34 °F 1950
9 34 °F 1986
9 34 °F 2003
Lowest High Temperatures in Rapid City on September 30
Rank Temperature Year
1 42 °F 1985
2 44 °F 2018
3 45 °F 1950
3 45 °F 1982
5 46 °F 1954
6 50 °F 1977
6 50 °F 1961
8 52 °F 1966
8 52 °F 1962
10 53 °F 2019
10 53 °F 1958
All-Time Most Precipitation in Rapid City on September 30
Rank Precipitation Year
1 0.6 inches 2014
2 0.4 inches 1977
3 0.4 inches 1962
4 0.4 inches 1982
5 0.3 inches 1969
6 0.1 inches 1983
7 0.1 inches 2019
8 0.1 inches 1985
9 0.0 inches 1950
10 0.0 inches 2009
10 0.0 inches 1981
All-Time Most Snow in Rapid City on September 30
Rank Precipitation Year
1 0.5 inches 1985
Weather Station Details
Years Station Coordinates
1948–2022 Rapid City Regional Airport location