Cincinnati September 21 Weather Records

Daily averages and all-time records for weather in Cincinnati, Ohio for the date of September 21.
September 21 All-Time Records
1916–2024
Highest temperature 97 °F 1940
Lowest temperature 35 °F 1962
Lowest daily high 57 °F 1983
Highest daily low 75 °F 1931
Most precipitation 1.98 inches 1950
Most snow none -
September 21 Average Weather
1991–2020 1
Average high 76.7 °F
Average low 55.3 °F
Chance precipitation 27.9%
Chance snow 0%
Cincinnati September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 80 61 0.00 0.0
2022 93 68 0.02 0.0
2021 75 67 0.04 0.0
2020 73 48 0.00 0.0
2019 89 67 0.00 0.0
2018 87 70 0.00 0.0
2017 89 65 0.01 0.0
2016 89 61 0.00 0.0
2015 77 52 0.00 0.0
2014 78 55 0.00 0.0
2013 73 56 0.63 0.0
2012 71 51 0.12 0.0
2011 75 65 0.17 0.0
2010 92 64 0.00 0.0
2009 78 67 0.06 0.0
2008 85 60 0.00 0.0
2007 91 60 0.00 0.0
2006 67 40 0.00 0.0
2005 81 61 0.00 0.0
2004 82 48 0.00 0.0
2003 77 52 0.00 0.0
2002 77 60 0.00 0.0
2001 75 56 0.00 0.0
2000 65 48 0.04 0.0
1999 68 51 0.01 0.0
1998 85 66 0.23 0.0
1997 69 50 0.00 0.0
1996 65 57 0.41 0.0
1995 74 59 0.00 0.0
1994 81 53 0.00 0.0
1993 73 52 0.00 0.0
1992 82 66 1.00 0.0
1991 67 45 0.00 0.0
1990 71 55 0.27 0.0
1989 84 65 0.00 0.0
1988 73 49 0.00 0.0
1987 71 47 0.00 0.0
1986 78 58 0.00 0.0
1985 84 53 0.00 0.0
1984 89 55 0.00 0.0
1983 57 39 0.27 0.0
1982 65 50 0.00 0.0
1981 78 51 0.00 0.0
1980 87 70 0.00 0.0
1979 64 60 1.69 0.0
1978 92 66 0.00 0.0
1977 69 51 0.00 0.0
1976 70 43 0.00 0.0
1975 68 47 0.00 0.0
1974 68 49 0.15 0.0
1973 74 60 0.00 0.0
1972 84 52 0.00 0.0
1971 68 45 0.00 0.0
1970 94 72 0.09 0.0
1969 75 56 0.00 0.0
1968 85 63 0.00 0.0
1967 77 57 0.74 0.0
1966 75 60 0.00 0.0
1965 85 70 0.00 0.0
1964 90 64 0.00 0.0
1963 76 55 0.07 0.0
1962 67 35 0.00 0.0
1961 86 56 0.00 0.0
1960 76 57 0.00 0.0
1959 84 59 0.00 0.0
1958 70 61 0.01 0.0
1957 85 70 0.00 0.0
1956 71 41 0.00 0.0
1955 92 63 1.22 0.0
1954 66 52 0.08 0.0
1953 70 48 0.00 0.0
1952 70 51 0.02 0.0
1951 84 63 0.00 0.0
1950 78 62 1.98 0.0
1949 80 50 0.00 0.0
1948 81 61 0.01 0.0
1947 86 60 0.94 0.0
1946 86 61 0.00 0.0
1945 80 53 0.00 0.0
1944 85 61 0.00 0.0
1943 78 58 0.02 0.0
1942 68 44 0.00 0.0
1941 86 56 0.00 0.0
1940 97 64 0.00 0.0
1939 76 56 0.00 0.0
1938 62 48 0.00 0.0
1937 79 41 0.00 0.0
1936 90 62 0.00 0.0
1935 90 68 0.00 0.0
1934 88 68 0.00 0.0
1933 72 50 0.00 0.0
1932 68 62 0.42 0.0
1931 94 75 0.00 0.0
1930 80 57 0.00 0.0
1929 69 44 0.00 0.0
1928 83 51 0.00 0.0
1927 64 40 0.00 0.0
1926 79 59 0.00 0.0
1925 72 59 0.00 0.0
1924 85 68 0.16 0.0
1923 70 59 0.00 0.0
1922 77 55 0.00 0.0
1921 80 62 0.41 0.0
1920 88 57 0.00 0.0
1919 81 70 0.53 0.0
1918 57 41 0.00 0.0
1917 73 55 0.00 0.0
1916 73 58 0.06 0.0
What's the all-time high for Cincinnati on 9/21?
For the date of Sep 21, the highest temperature ever reached in Cincinnati history is 97 °F which happened in 1940.
Highest Temperatures in Cincinnati on September 21
Rank Temperature Year
1 97 °F 1940
2 94 °F 1970
2 94 °F 1931
4 93 °F 2022
5 92 °F 2010
5 92 °F 1978
5 92 °F 1955
8 91 °F 2007
9 90 °F 1935
9 90 °F 1936
9 90 °F 1964
What's the all-time low for Cincinnati on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Cincinnati history is 35 °F which happened in 1962.
Lowest Temperatures in Cincinnati on September 21
Rank Temperature Year
1 35 °F 1962
2 39 °F 1983
3 40 °F 2006
3 40 °F 1927
5 41 °F 1937
5 41 °F 1956
5 41 °F 1918
8 43 °F 1976
9 44 °F 1929
9 44 °F 1942
Lowest High Temperatures in Cincinnati on September 21
Rank Temperature Year
1 57 °F 1918
1 57 °F 1983
3 62 °F 1938
4 64 °F 1927
4 64 °F 1979
6 65 °F 2000
6 65 °F 1996
6 65 °F 1982
9 66 °F 1954
10 67 °F 1962
10 67 °F 2006
10 67 °F 1991
What's the most it has ever rained in Cincinnati on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Cincinnati history is 1.98 inches which happened in 1950.
All-Time Most Precipitation in Cincinnati on September 21
Rank Precipitation Year
1 1.98 inches 1950
2 1.69 inches 1979
3 1.22 inches 1955
4 1.00 inches 1992
5 0.94 inches 1947
6 0.74 inches 1967
7 0.63 inches 2013
8 0.53 inches 1919
9 0.42 inches 1932
10 0.41 inches 1996
10 0.41 inches 1921
Weather Station Details
Years Station Coordinates
1948–2024 Cincinnati/Northern Kentucky International Airport location
1916–1947 Cincinnati location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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