Sioux Falls May 21 Weather Records

Daily averages and all-time records for weather in Sioux Falls, South Dakota for the date of May 21.
May 21 All-Time Records
1932–2022
Highest temperature 93 °F 1964
Lowest temperature 33 °F 1963
Lowest daily high 50 °F 1969
Highest daily low 68 °F 1964
Most precipitation 1.7 inches 1962
Most snow none -
May 21 Average Weather
1991–2020 1
Average high 71.3 °F
Average low 48.7 °F
Chance precipitation 40.6%
Chance snow 0%
Sioux Falls May 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2022 53 37 0.00 0.0
2021 84 63 0.00 0.0
2020 70 58 0.00 0.0
2019 52 46 0.96 0.0
2018 68 53 0.13 0.0
2017 60 36 0.01 0.0
2016 73 44 0.00 0.0
2015 75 42 0.00 0.0
2014 72 46 0.00 0.0
2013 61 51 0.03 0.0
2012 74 45 0.00 0.0
2011 74 54 0.62 0.0
2010 74 55 0.00 0.0
2009 62 52 0.07 0.0
2008 73 35 0.00 0.0
2007 83 65 0.00 0.0
2006 64 48 0.03 0.0
2005 81 55 0.21 0.0
2004 78 57 0.51 0.0
2003 67 35 0.00 0.0
2002 71 42 0.00 0.0
2001 55 43 0.01 0.0
2000 78 47 0.00 0.0
1999 73 48 0.00 0.0
1998 74 56 0.00 0.0
1997 73 41 0.00 0.0
1996 75 48 0.00 0.0
1995 75 44 0.00 0.0
1994 83 61 0.00 0.0
1993 72 37 0.00 0.0
1992 79 65 0.00 0.0
1991 83 63 0.00 0.0
1990 62 49 0.00 0.0
1989 78 48 0.08 0.0
1988 69 57 0.27 0.0
1987 65 41 0.02 0.0
1986 72 42 0.00 0.0
1985 74 40 0.00 0.0
1984 78 55 0.16 0.0
1983 74 48 0.00 0.0
1982 56 49 0.02 0.0
1981 79 56 0.04 0.0
1980 80 43 0.00 0.0
1979 65 36 0.00 0.0
1978 74 39 0.00 0.0
1977 73 58 0.83 0.0
1976 86 60 0.13 0.0
1975 78 54 0.00 0.0
1974 72 52 0.60 0.0
1973 89 60 0.00 0.0
1972 86 59 0.00 0.0
1971 75 50 0.00 0.0
1970 88 59 0.00 0.0
1969 50 45 0.99 0.0
1968 67 34 0.00 0.0
1967 69 42 0.00 0.0
1966 83 54 0.00 0.0
1965 71 52 0.06 0.0
1964 93 68 0.00 0.0
1963 51 33 0.00 0.0
1962 77 55 1.71 0.0
1961 74 40 0.00 0.0
1960 72 51 0.05 0.0
1959 57 44 0.17 0.0
1958 81 44 0.00 0.0
1957 68 46 0.10 0.0
1956 88 54 0.00 0.0
1955 88 56 0.00 0.0
1954 75 55 0.00 0.0
1953 64 43 0.05 0.0
1952 72 48 0.00 0.0
1951 63 56 0.01 0.0
1950 73 48 0.00 0.0
1949 58 50 0.73 0.0
1948 79 54 0.24 0.0
1947 67 37 0.04 0.0
1946 73 41 0.00 0.0
1945 56 40 0.78 0.0
1944 80 56 0.00 0.0
1943 78 43 0.00 0.0
1942 63 42 1.16 0.0
1941 80 49 0.00 0.0
1940 73 49 0.00 0.0
1939 85 51 0.00 0.0
1938 72 47 0.00 0.0
1937 73 51 0.00 0.0
1936 85 60 0.28 0.0
1935 72 48 0.00 0.0
1934 83 60 0.00 0.0
1933 80 48 0.00 0.0
1932 78 55 0.00 0.0
All-Time Highest Temperatures in Sioux Falls on May 21
Rank Temperature Year
1 93 °F 1964
2 89 °F 1973
3 88 °F 1955
3 88 °F 1956
3 88 °F 1970
6 86 °F 1972
6 86 °F 1976
8 85 °F 1939
8 85 °F 1936
10 84 °F 2021
All-Time Lowest Temperatures in Sioux Falls on May 21
Rank Temperature Year
1 33 °F 1963
2 34 °F 1968
3 35 °F 2003
3 35 °F 2008
5 36 °F 1979
5 36 °F 2017
7 37 °F 2022
7 37 °F 1993
7 37 °F 1947
10 39 °F 1978
Lowest High Temperatures in Sioux Falls on May 21
Rank Temperature Year
1 50 °F 1969
2 51 °F 1963
3 52 °F 2019
4 53 °F 2022
5 55 °F 2001
6 56 °F 1982
6 56 °F 1945
8 57 °F 1959
9 58 °F 1949
10 60 °F 2017
All-Time Most Precipitation in Sioux Falls on May 21
Rank Precipitation Year
1 1.7 inches 1962
2 1.2 inches 1942
3 1.0 inches 1969
4 1.0 inches 2019
5 0.8 inches 1977
6 0.8 inches 1945
7 0.7 inches 1949
8 0.6 inches 2011
9 0.6 inches 1974
10 0.5 inches 2004
Weather Station Details
Years Station Coordinates
1932–2022 Sioux Falls location