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Sioux Falls October 21 Weather Records

Daily averages and all-time records for weather in Sioux Falls, South Dakota for the date of October 21.
October 21 All-Time Records
1932–2022
Highest temperature 85 °F 1947
Lowest temperature 18 °F 1976
Lowest daily high 30 °F 1936
Highest daily low 56 °F 1947
Most precipitation 1.0 inches 2009
Most snow 2.1 inches 1951
October 21 Average Weather
1991–2020 1
Average high 57.6 °F
Average low 34.9 °F
Chance precipitation 23.7%
Chance snow 4.0%
Sioux Falls October 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2021 53 38 0.00 0.0
2020 41 33 0.03 0.0
2019 51 42 0.44 0.0
2018 66 31 0.00 0.0
2017 73 43 0.00 0.0
2016 66 33 0.00 0.0
2015 60 37 0.00 0.0
2014 73 37 0.00 0.0
2013 50 33 0.01 0.0
2012 68 45 0.00 0.0
2011 67 27 0.00 0.0
2010 61 29 0.00 0.0
2009 47 39 0.96 0.0
2008 45 37 0.16 0.0
2007 54 46 0.08 0.0
2006 39 28 0.00 0.0
2005 57 33 0.00 0.0
2004 54 47 0.04 0.0
2003 75 39 0.00 0.0
2002 40 26 0.00 0.0
2001 64 36 0.02 0.0
2000 73 35 0.00 0.0
1999 71 37 0.00 0.0
1998 62 34 0.00 0.0
1997 43 22 0.00 0.0
1996 45 28 0.00 0.0
1995 51 26 0.00 0.0
1994 74 41 0.05 0.0
1993 54 29 0.00 0.0
1992 76 37 0.00 0.0
1991 70 35 0.00 0.0
1990 49 28 0.00 0.0
1989 71 22 0.00 0.0
1988 54 29 0.00 0.0
1987 45 20 0.00 0.0
1986 70 46 0.00 0.0
1985 56 41 0.00 0.0
1984 49 29 0.00 0.0
1983 49 43 0.00 0.0
1982 42 21 0.00 0.0
1981 44 25 0.01 0.0
1980 50 32 0.00 0.0
1979 47 36 0.06 0.0
1978 69 45 0.00 0.0
1977 65 41 0.00 0.0
1976 42 18 0.00 0.0
1975 66 34 0.00 0.0
1974 76 43 0.00 0.0
1973 76 49 0.00 0.0
1972 45 41 0.02 0.0
1971 67 37 0.00 0.0
1970 68 45 0.00 0.0
1969 59 29 0.00 0.0
1968 66 43 0.00 0.0
1967 73 24 0.00 0.0
1966 68 44 0.00 0.0
1965 59 32 0.00 0.0
1964 56 27 0.00 0.0
1963 70 51 0.16 0.0
1962 66 38 0.00 0.0
1961 68 42 0.00 0.0
1960 63 24 0.00 0.0
1959 62 40 0.88 0.0
1958 57 43 0.00 0.0
1957 53 45 0.10 0.0
1956 70 26 0.00 0.0
1955 60 27 0.00 0.0
1954 63 32 0.00 0.0
1953 71 49 0.17 0.0
1952 63 31 0.00 0.0
1951 44 31 0.27 2.1
1950 57 40 0.00 0.0
1949 39 28 0.00 0.0
1948 60 35 0.00 0.0
1947 85 56 0.00 0.0
1946 74 43 0.00 0.0
1945 64 37 0.00 0.0
1944 57 32 0.00 0.0
1943 60 31 0.00 0.0
1942 50 37 0.00 0.0
1941 68 56 0.00 0.0
1940 73 42 0.00 0.0
1939 69 47 0.00 0.0
1938 69 39 0.00 0.0
1937 40 33 0.00 0.0
1936 30 20 0.00 0.0
1935 54 33 0.00 0.0
1934 67 39 0.06 0.0
1933 50 24 0.00 0.0
1932 61 35 0.00 0.0
All-Time Highest Temperatures in Sioux Falls on October 21
Rank Temperature Year
1 85 °F 1947
2 76 °F 1992
2 76 °F 1973
2 76 °F 1974
5 75 °F 2003
6 74 °F 1994
6 74 °F 1946
8 73 °F 2014
8 73 °F 1940
8 73 °F 2000
8 73 °F 2017
8 73 °F 1967
All-Time Lowest Temperatures in Sioux Falls on October 21
Rank Temperature Year
1 18 °F 1976
2 20 °F 1987
2 20 °F 1936
4 21 °F 1982
5 22 °F 1997
5 22 °F 1989
7 24 °F 1960
7 24 °F 1967
7 24 °F 1933
10 25 °F 1981
Lowest High Temperatures in Sioux Falls on October 21
Rank Temperature Year
1 30 °F 1936
2 39 °F 1949
2 39 °F 2006
4 40 °F 2002
4 40 °F 1937
6 41 °F 2020
7 42 °F 1976
7 42 °F 1982
9 43 °F 1997
10 44 °F 1981
10 44 °F 1951
All-Time Most Precipitation in Sioux Falls on October 21
Rank Precipitation Year
1 1.0 inches 2009
2 0.9 inches 1959
3 0.4 inches 2019
4 0.3 inches 1951
5 0.2 inches 1953
6 0.2 inches 2008
6 0.2 inches 1963
8 0.1 inches 1957
9 0.1 inches 2007
10 0.1 inches 1979
10 0.1 inches 1934
All-Time Most Snow in Sioux Falls on October 21
Rank Precipitation Year
1 2.1 inches 1951
Weather Station Details
Years Station Coordinates
1932–2022 Sioux Falls location