Ann Arbor September 20 Weather Records

Daily averages and all-time records for weather in Ann Arbor, Michigan for the date of September 20.
September 20 All-Time Records
1891–2024
Highest temperature 91 °F 1895
Lowest temperature 34 °F 2020
Lowest daily high 55 °F 1918
Highest daily low 69 °F 1983
Most precipitation 1.67 inches 1921
Most snow none -
September 20 Average Weather
1991–2020 1
Average high 73.3 °F
Average low 52.2 °F
Chance precipitation 38.6%
Chance snow 0%
Ann Arbor September 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 77 55 0.04 0.0
2022 78 50 0.01 0.0
2021 81 57 0.20 0.0
2020 68 34 0.00 0.0
2019 85 55 0.00 0.0
2018 79 59 0.28 0.0
2017 84 65 0.04 0.0
2016 82 62 0.00 0.0
2015 70 45 0.00 0.0
2014 78 51 0.00 n/a
2013 81 67 0.19 n/a
2012 69 50 0.04 n/a
2011 71 52 0.00 n/a
2010 68 56 0.00 0.0
2009 75 48 0.00 0.0
2008 81 53 0.00 0.0
2007 83 58 0.00 0.0
2006 59 47 0.04 0.0
2005 79 61 0.04 0.0
2004 77 48 0.00 0.0
2003 72 48 0.00 0.0
2002 75 67 1.00 0.0
2001 70 60 0.00 0.0
2000 79 61 0.00 0.0
1999 79 55 0.00 0.0
1998 88 63 0.00 0.0
1997 71 58 0.59 0.0
1996 74 44 0.00 0.0
1995 64 52 0.19 0.0
1994 84 51 0.00 0.0
1993 62 48 0.03 0.0
1992 67 43 0.00 0.0
1991 59 35 0.00 0.0
1990 70 46 0.00 0.0
1989 74 52 0.00 0.0
1988 71 55 0.70 0.0
1987 72 50 0.01 0.0
1986 75 63 0.00 0.0
1985 82 58 0.00 0.0
1984 82 60 0.00 0.0
1983 84 69 0.02 0.0
1982 66 50 0.01 0.0
1981 68 42 0.00 0.0
1980 82 60 0.00 0.0
1979 72 42 0.00 0.0
1978 88 67 0.00 0.0
1977 74 54 0.00 0.0
1976 78 53 0.20 0.0
1975 66 49 0.20 0.0
1974 80 49 0.00 0.0
1973 63 49 0.00 0.0
1972 74 56 0.00 0.0
1971 69 55 0.95 0.0
1970 77 60 0.00 0.0
1969 66 48 0.00 0.0
1968 76 62 0.30 0.0
1967 78 63 0.05 0.0
1966 72 55 0.23 0.0
1965 85 67 0.00 0.0
1964 73 56 0.06 0.0
1963 72 54 0.41 0.0
1962 60 37 0.00 0.0
1961 76 61 0.00 0.0
1960 68 56 0.02 0.0
1959 82 54 0.00 0.0
1958 72 56 0.00 0.0
1957 75 63 0.73 0.0
1956 56 45 0.01 0.0
1955 n/a n/a n/a n/a
1954 77 54 0.00 0.0
1953 75 53 0.80 0.0
1952 65 45 0.00 0.0
1951 79 54 0.00 0.0
1950 72 50 0.00 0.0
1949 64 51 0.00 0.0
1948 78 66 0.00 0.0
1947 81 64 0.00 0.0
1946 78 54 0.00 0.0
1945 70 58 0.00 0.0
1944 81 61 0.00 0.0
1943 70 53 0.00 0.0
1942 61 46 0.03 0.0
1941 82 53 0.00 0.0
1940 90 64 0.00 0.0
1939 72 49 0.00 0.0
1938 61 45 0.12 0.0
1937 66 37 0.00 0.0
1936 79 49 0.00 0.0
1935 69 51 0.04 0.0
1934 82 55 0.00 0.0
1933 74 56 0.00 0.0
1932 75 63 0.18 0.0
1931 89 63 0.00 0.0
1930 76 58 0.00 n/a
1929 60 41 0.00 n/a
1928 64 45 0.05 n/a
1927 62 44 0.05 n/a
1926 73 56 0.00 n/a
1925 84 66 0.00 n/a
1924 74 62 0.50 n/a
1923 62 53 1.06 0.0
1922 68 56 0.00 0.0
1921 70 57 1.67 0.0
1920 67 48 0.00 n/a
1919 81 59 0.03 n/a
1918 55 35 0.00 n/a
1917 76 55 0.00 n/a
1916 75 45 0.00 n/a
1915 78 54 0.24 n/a
1914 86 56 0.00 n/a
1913 76 52 0.62 n/a
1912 73 49 0.00 n/a
1911 72 47 0.00 n/a
1910 74 51 0.00 n/a
1909 82 54 0.00 n/a
1908 82 61 0.00 n/a
1907 81 66 0.00 n/a
1906 80 67 0.04 0.0
1905 72 51 0.00 n/a
1904 66 43 0.00 n/a
1903 75 43 0.00 n/a
1902 77 54 0.00 n/a
1901 62 39 0.00 n/a
1900 77 55 0.20 n/a
1899 66 47 0.00 n/a
1898 71 38 0.00 n/a
1897 60 53 0.00 n/a
1896 60 40 n/a n/a
1895 91 68 0.00 n/a
1894 78 47 n/a n/a
1893 70 50 n/a n/a
1892 65 47 0.00 n/a
What's the all-time high for Ann Arbor on 9/20?
For the date of Sep 20, the highest temperature ever reached in Ann Arbor history is 91 °F which happened in 1895.
Highest Temperatures in Ann Arbor on September 20
Rank Temperature Year
1 91 °F 1895
2 90 °F 1940
3 89 °F 1931
4 88 °F 1978
4 88 °F 1998
6 86 °F 1914
7 85 °F 2019
7 85 °F 1965
9 84 °F 2017
9 84 °F 1925
9 84 °F 1994
9 84 °F 1983
What's the all-time low for Ann Arbor on 9/20?
For the date of Sep 20, the lowest temperature ever reached in Ann Arbor history is 34 °F which happened in 2020.
Lowest Temperatures in Ann Arbor on September 20
Rank Temperature Year
1 34 °F 2020
2 35 °F 1918
2 35 °F 1991
4 37 °F 1962
4 37 °F 1937
6 38 °F 1898
7 39 °F 1901
8 40 °F 1896
9 41 °F 1929
10 42 °F 1979
10 42 °F 1981
Lowest High Temperatures in Ann Arbor on September 20
Rank Temperature Year
1 55 °F 1918
2 56 °F 1956
3 59 °F 1991
3 59 °F 2006
5 60 °F 1962
5 60 °F 1897
5 60 °F 1896
5 60 °F 1929
9 61 °F 1942
9 61 °F 1938
What's the most it has ever rained in Ann Arbor on 9/20?
For the date of Sep 20, the most precipitation ever recorded in Ann Arbor history is 1.67 inches which happened in 1921.
All-Time Most Precipitation in Ann Arbor on September 20
Rank Precipitation Year
1 1.67 inches 1921
2 1.06 inches 1923
3 1.00 inches 2002
4 0.95 inches 1971
5 0.80 inches 1953
6 0.73 inches 1957
7 0.70 inches 1988
8 0.62 inches 1913
9 0.59 inches 1997
10 0.50 inches 1924
Weather Station Details
Years Station Coordinates
1891–2024 University of Michigan location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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