Can't find what you're looking for? We're happy to answer your questions. Also, check out our Twitter.

Rapid City September 12 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of September 12.
September 12 All-Time Records
1948–2022
Highest temperature 97 °F 2004
Lowest temperature 28 °F 2014
Lowest daily high 44 °F 1970
Highest daily low 61 °F 1992
Most precipitation 1.4 inches 2009
Most snow none -
September 12 Average Weather
1991–2020 1
Average high 78.0 °F
Average low 47.9 °F
Chance precipitation 22.3%
Chance snow 0.3%
Rapid City September 12 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2022 87 41 0.00 n/a
2021 82 52 0.05 n/a
2020 79 42 0.01 n/a
2019 63 45 0.00 n/a
2018 93 48 0.00 0.0
2017 94 56 0.35 0.0
2016 61 46 0.02 0.0
2015 82 43 0.00 0.0
2014 56 28 0.00 0.0
2013 81 51 0.00 0.0
2012 72 47 0.00 0.0
2011 78 48 0.00 0.0
2010 82 47 0.00 0.0
2009 61 47 1.40 0.0
2008 69 45 0.20 0.0
2007 88 43 0.00 0.0
2006 82 47 0.00 0.0
2005 72 49 0.05 n/a
2004 97 54 0.00 n/a
2003 74 49 0.15 n/a
2002 61 55 0.45 n/a
2001 75 48 0.00 n/a
2000 87 41 0.00 0.0
1999 60 34 0.00 0.0
1998 84 60 0.00 0.0
1997 83 53 0.00 0.0
1996 77 42 0.00 0.0
1995 87 51 0.00 0.0
1994 82 57 0.00 0.0
1993 84 42 0.02 0.0
1992 91 61 0.00 0.0
1991 79 60 0.00 0.0
1990 97 60 0.00 0.0
1989 57 34 0.00 0.0
1988 57 45 0.00 0.0
1987 75 36 0.00 0.0
1986 67 43 0.00 0.0
1985 78 52 0.62 0.0
1984 80 54 0.00 0.0
1983 70 44 0.00 0.0
1982 62 48 0.13 0.0
1981 95 53 0.00 0.0
1980 68 52 0.02 0.0
1979 65 43 0.05 0.0
1978 71 42 0.00 0.0
1977 71 51 0.06 0.0
1976 83 58 0.15 0.0
1975 68 37 0.00 0.0
1974 52 36 0.11 0.0
1973 66 48 0.00 0.0
1972 88 55 0.00 0.0
1971 78 48 0.00 0.0
1970 44 37 0.00 0.0
1969 88 53 0.00 0.0
1968 90 55 0.00 0.0
1967 72 49 0.01 0.0
1966 90 59 0.00 0.0
1965 68 47 0.10 0.0
1964 73 37 0.00 0.0
1963 71 51 0.00 0.0
1962 78 49 0.00 0.0
1961 50 38 0.27 0.0
1960 83 46 0.00 0.0
1959 95 53 0.00 0.0
1958 92 56 0.00 0.0
1957 66 50 0.00 0.0
1956 86 56 0.15 0.0
1955 89 51 0.00 0.0
1954 93 60 0.00 0.0
1953 79 49 0.00 0.0
1952 95 61 0.00 0.0
1951 63 44 0.00 0.0
1950 60 41 0.23 0.0
1949 49 32 0.17 0.0
1948 88 56 0.00 0.0
All-Time Highest Temperatures in Rapid City on September 12
Rank Temperature Year
1 97 °F 1990
1 97 °F 2004
3 95 °F 1981
3 95 °F 1952
3 95 °F 1959
6 94 °F 2017
7 93 °F 1954
7 93 °F 2018
9 92 °F 1958
10 91 °F 1992
All-Time Lowest Temperatures in Rapid City on September 12
Rank Temperature Year
1 28 °F 2014
2 32 °F 1949
3 34 °F 1999
3 34 °F 1989
5 36 °F 1974
5 36 °F 1987
7 37 °F 1970
7 37 °F 1975
7 37 °F 1964
10 38 °F 1961
Lowest High Temperatures in Rapid City on September 12
Rank Temperature Year
1 44 °F 1970
2 49 °F 1949
3 50 °F 1961
4 52 °F 1974
5 56 °F 2014
6 57 °F 1988
6 57 °F 1989
8 60 °F 1999
8 60 °F 1950
10 61 °F 2002
10 61 °F 2009
10 61 °F 2016
All-Time Most Precipitation in Rapid City on September 12
Rank Precipitation Year
1 1.4 inches 2009
2 0.6 inches 1985
3 0.4 inches 2002
4 0.4 inches 2017
5 0.3 inches 1961
6 0.2 inches 1950
7 0.2 inches 2008
8 0.2 inches 1949
9 0.1 inches 2003
9 0.1 inches 1976
9 0.1 inches 1956
Weather Station Details
Years Station Coordinates
1948–2022 Rapid City Regional Airport location