Milwaukee September 21 Weather Records

Daily averages and all-time records for weather in Milwaukee, Wisconsin for the date of September 21.
September 21 All-Time Records
1871–2024
Highest temperature 90 °F 1920
Lowest temperature 33 °F 1962
Lowest daily high 46 °F 1913
Highest daily low 71 °F 1895
Most precipitation 2.71 inches 1947
Most snow none -
September 21 Average Weather
1991–2020 1
Average high 70.3 °F
Average low 53.7 °F
Chance precipitation 31.6%
Chance snow 0%
Milwaukee September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 75 64 0.00 0.0
2022 80 60 0.00 0.0
2021 77 61 0.23 0.0
2020 73 54 0.00 0.0
2019 81 69 0.22 0.0
2018 82 51 0.00 0.0
2017 85 70 0.00 0.0
2016 74 64 0.69 0.0
2015 70 51 0.00 0.0
2014 63 48 0.00 0.0
2013 61 50 0.00 0.0
2012 58 49 0.10 0.0
2011 69 55 0.00 0.0
2010 85 66 0.51 0.0
2009 69 58 0.00 0.0
2008 70 61 0.00 0.0
2007 87 58 0.05 0.0
2006 65 41 0.05 0.0
2005 88 64 0.01 0.0
2004 82 55 0.00 0.0
2003 70 47 0.00 0.0
2002 73 58 0.00 0.0
2001 67 58 0.19 0.0
2000 61 45 0.00 0.0
1999 58 43 0.00 0.0
1998 70 53 0.00 0.0
1997 63 46 0.00 0.0
1996 74 56 0.11 0.0
1995 49 42 0.34 0.0
1994 82 65 0.00 0.0
1993 61 55 0.00 0.0
1992 68 53 0.01 0.0
1991 64 43 0.00 0.0
1990 72 52 0.38 0.0
1989 75 57 0.00 0.0
1988 57 53 0.00 0.0
1987 65 50 0.12 0.0
1986 68 58 0.08 0.0
1985 62 54 0.33 0.0
1984 69 52 0.00 0.0
1983 53 40 0.00 0.0
1982 56 44 0.00 0.0
1981 59 50 0.47 0.0
1980 73 57 0.02 0.0
1979 65 52 0.00 0.0
1978 64 53 0.02 0.0
1977 58 53 0.00 0.0
1976 62 47 0.00 0.0
1975 58 51 0.01 0.0
1974 62 40 0.00 0.0
1973 70 52 0.32 0.0
1972 67 50 0.35 0.0
1971 69 40 0.00 0.0
1970 85 69 0.06 0.0
1969 70 46 0.00 0.0
1968 76 54 0.00 0.0
1967 73 56 0.01 0.0
1966 64 58 0.00 0.0
1965 76 65 0.21 0.0
1964 78 62 0.23 0.0
1963 68 45 0.00 0.0
1962 62 33 0.09 0.0
1961 81 63 0.33 0.0
1960 67 48 0.00 0.0
1959 85 65 0.00 0.0
1958 74 50 0.00 0.0
1957 72 51 0.01 0.0
1956 64 38 0.00 0.0
1955 66 55 0.06 0.0
1954 59 47 0.02 0.0
1953 57 44 0.00 0.0
1952 66 43 0.00 0.0
1951 70 52 0.17 0.0
1950 63 57 1.16 0.0
1949 69 53 0.00 0.0
1948 65 59 0.01 0.0
1947 71 49 2.71 0.0
1946 79 50 0.00 0.0
1945 58 49 0.00 0.0
1944 74 55 0.00 0.0
1943 68 40 0.00 0.0
1942 65 42 0.07 0.0
1941 88 59 0.00 0.0
1940 75 59 0.00 n/a
1939 73 44 0.00 0.0
1938 65 47 0.00 0.0
1937 83 52 0.00 0.0
1936 80 59 0.00 0.0
1935 65 59 0.00 0.0
1934 57 51 0.78 0.0
1933 63 48 0.00 0.0
1932 67 54 0.00 0.0
1931 87 65 0.22 0.0
1930 77 53 0.00 0.0
1929 61 50 0.00 0.0
1928 65 51 0.02 0.0
1927 59 42 0.00 0.0
1926 79 59 0.00 0.0
1925 59 49 0.00 0.0
1924 86 51 0.01 0.0
1923 61 52 0.00 0.0
1922 73 55 0.00 0.0
1921 74 61 0.63 0.0
1920 90 64 0.00 0.0
1919 72 56 1.10 0.0
1918 57 44 0.00 0.0
1917 67 48 0.00 0.0
1916 66 52 0.00 0.0
1915 65 43 0.00 0.0
1914 86 69 0.01 0.0
1913 46 38 0.05 0.0
1912 61 51 0.44 0.0
1911 66 57 0.45 0.0
1910 67 57 0.00 0.0
1909 71 61 1.30 0.0
1908 83 69 0.00 0.0
1907 71 46 0.00 0.0
1906 70 63 0.00 0.0
1905 80 61 0.00 0.0
1904 53 45 0.00 0.0
1903 77 62 0.00 0.0
1902 68 52 0.00 0.0
1901 69 47 0.00 0.0
1900 64 48 0.00 0.0
1899 74 46 0.00 0.0
1898 66 59 0.00 0.0
1897 69 42 0.02 0.0
1896 65 48 0.00 0.0
1895 89 71 0.00 0.0
1894 76 58 0.32 0.0
1893 90 63 0.36 0.0
1892 69 50 0.00 0.0
1891 77 66 0.00 0.0
1890 72 48 0.00 0.0
1889 54 38 0.00 0.0
1888 63 52 0.00 0.0
1887 74 58 0.11 0.0
1886 59 51 0.00 0.0
1885 84 62 0.00 0.0
1884 74 49 0.00 0.0
1883 61 52 0.26 n/a
1882 55 46 0.06 n/a
1881 83 52 0.35 n/a
1880 61 46 0.00 n/a
1879 61 42 0.00 n/a
1878 57 42 0.00 n/a
1877 67 53 0.00 n/a
1876 66 62 0.00 n/a
1875 50 35 0.00 n/a
1874 69 45 0.00 n/a
1873 69 48 0.00 n/a
1872 85 58 0.00 n/a
1871 58 44 0.00 n/a
What's the all-time high for Milwaukee on 9/21?
For the date of Sep 21, the highest temperature ever reached in Milwaukee history is 90 °F which has happened 2 times, most recently in 1920.
Highest Temperatures in Milwaukee on September 21
Rank Temperature Year
1 90 °F 1920
1 90 °F 1893
3 89 °F 1895
4 88 °F 2005
4 88 °F 1941
6 87 °F 2007
6 87 °F 1931
8 86 °F 1914
8 86 °F 1924
10 85 °F 2010
10 85 °F 2017
10 85 °F 1970
10 85 °F 1959
10 85 °F 1872
What's the all-time low for Milwaukee on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Milwaukee history is 33 °F which happened in 1962.
Lowest Temperatures in Milwaukee on September 21
Rank Temperature Year
1 33 °F 1962
2 35 °F 1875
3 38 °F 1889
3 38 °F 1956
3 38 °F 1913
6 40 °F 1971
6 40 °F 1983
6 40 °F 1943
6 40 °F 1974
10 41 °F 2006
Lowest High Temperatures in Milwaukee on September 21
Rank Temperature Year
1 46 °F 1913
2 49 °F 1995
3 50 °F 1875
4 53 °F 1983
4 53 °F 1904
6 54 °F 1889
7 55 °F 1882
8 56 °F 1982
9 57 °F 1953
9 57 °F 1934
9 57 °F 1878
9 57 °F 1918
9 57 °F 1988
What's the most it has ever rained in Milwaukee on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Milwaukee history is 2.71 inches which happened in 1947.
All-Time Most Precipitation in Milwaukee on September 21
Rank Precipitation Year
1 2.71 inches 1947
2 1.30 inches 1909
3 1.16 inches 1950
4 1.10 inches 1919
5 0.78 inches 1934
6 0.69 inches 2016
7 0.63 inches 1921
8 0.51 inches 2010
9 0.47 inches 1981
10 0.45 inches 1911
Weather Station Details
Years Station Coordinates
1939–2024 Milwaukee Mitchell Airport location
1871–1938 Milwaukee WB location