Jacksonville September 21 Weather Records

Daily averages and all-time records for weather in Jacksonville, Florida for the date of September 21.
September 21 All-Time Records
1871–2024
Highest temperature 97 °F 1990
Lowest temperature 49 °F 1897
Lowest daily high 69 °F 1918
Highest daily low 78 °F 1979
Most precipitation 5.27 inches 1897
Most snow none -
September 21 Average Weather
1991–2020 1
Average high 86.0 °F
Average low 68.8 °F
Chance precipitation 39.2%
Chance snow 0%
Jacksonville September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 86 71 0.02 0.0
2022 88 69 0.00 0.0
2021 89 73 0.06 0.0
2020 76 66 0.00 0.0
2019 87 66 0.00 0.0
2018 89 72 0.01 0.0
2017 88 73 0.00 0.0
2016 89 71 0.00 n/a
2015 87 68 0.00 n/a
2014 87 64 0.00 n/a
2013 87 66 0.00 0.0
2012 85 71 0.00 n/a
2011 88 71 0.00 n/a
2010 89 67 0.00 n/a
2009 88 73 0.00 n/a
2008 84 72 1.99 n/a
2007 89 72 0.23 n/a
2006 86 57 0.00 n/a
2005 87 75 1.07 n/a
2004 80 67 0.28 n/a
2003 88 69 0.00 0.0
2002 87 73 0.01 0.0
2001 90 71 0.00 0.0
2000 89 74 0.00 0.0
1999 84 69 0.01 0.0
1998 85 75 0.39 0.0
1997 93 71 0.00 0.0
1996 83 64 0.00 0.0
1995 86 68 0.00 0.0
1994 82 67 0.08 0.0
1993 92 71 0.74 0.0
1992 94 70 0.00 0.0
1991 84 64 0.00 0.0
1990 97 68 0.00 0.0
1989 83 67 0.00 0.0
1988 94 75 0.00 0.0
1987 88 65 0.00 0.0
1986 92 66 0.00 0.0
1985 85 72 0.06 0.0
1984 84 65 0.03 0.0
1983 88 71 0.42 0.0
1982 83 72 0.10 0.0
1981 83 56 0.00 0.0
1980 91 72 0.00 0.0
1979 87 78 0.33 0.0
1978 87 70 0.00 0.0
1977 92 69 0.31 0.0
1976 85 69 0.00 0.0
1975 89 72 0.00 0.0
1974 87 70 0.00 0.0
1973 89 70 0.00 0.0
1972 85 64 0.00 0.0
1971 90 69 0.00 0.0
1970 90 73 0.10 0.0
1969 79 72 1.71 0.0
1968 86 69 0.00 0.0
1967 88 69 0.00 0.0
1966 78 69 0.26 0.0
1965 89 73 0.00 0.0
1964 80 66 0.00 0.0
1963 88 73 0.01 0.0
1962 76 67 0.21 0.0
1961 90 68 0.00 0.0
1960 89 71 0.00 0.0
1959 82 68 0.06 0.0
1958 91 74 0.00 0.0
1957 91 76 0.00 0.0
1956 90 67 0.00 0.0
1955 95 69 0.00 0.0
1954 95 75 0.00 0.0
1953 90 70 0.00 0.0
1952 84 71 0.99 0.0
1951 90 74 0.00 0.0
1950 91 64 0.00 0.0
1949 86 72 1.03 0.0
1948 88 67 0.00 0.0
1947 90 75 0.00 n/a
1946 90 71 0.54 0.0
1945 92 75 0.00 n/a
1944 88 71 0.03 n/a
1943 83 67 0.67 0.0
1942 87 72 0.00 0.0
1941 84 73 0.07 0.0
1940 84 71 0.00 0.0
1939 80 69 0.00 0.0
1938 80 60 0.00 0.0
1937 84 72 0.34 0.0
1936 88 73 0.00 0.0
1935 78 69 2.50 0.0
1934 83 68 0.00 0.0
1933 90 76 0.00 0.0
1932 84 71 0.19 0.0
1931 89 78 0.00 0.0
1930 92 75 0.18 0.0
1929 71 63 0.00 0.0
1928 86 73 0.00 0.0
1927 86 70 0.06 0.0
1926 88 71 0.89 0.0
1925 96 76 0.00 0.0
1924 83 74 0.03 0.0
1923 88 73 0.00 0.0
1922 77 66 0.00 0.0
1921 90 76 0.00 0.0
1920 79 73 0.00 0.0
1919 85 76 0.00 0.0
1918 69 56 0.01 0.0
1917 82 68 0.28 0.0
1916 79 62 0.00 0.0
1915 91 75 0.00 0.0
1914 83 71 0.00 n/a
1913 81 61 0.05 n/a
1912 82 73 0.19 n/a
1911 90 73 0.00 0.0
1910 90 71 0.00 0.0
1909 89 74 0.00 0.0
1908 82 73 0.00 0.0
1907 85 72 0.02 0.0
1906 86 75 0.00 0.0
1905 91 74 0.67 0.0
1904 89 67 1.99 0.0
1903 77 64 0.00 0.0
1902 81 67 0.00 0.0
1901 79 66 0.00 0.0
1900 89 72 0.00 0.0
1899 81 69 0.65 0.0
1898 85 74 0.46 0.0
1897 70 49 5.27 0.0
1896 89 75 0.00 0.0
1895 86 72 0.00 0.0
1894 89 69 0.00 0.0
1893 92 69 0.00 0.0
1892 84 69 0.37 n/a
1891 87 67 0.00 n/a
1890 85 69 0.08 n/a
1889 86 60 0.00 n/a
1888 86 70 0.00 n/a
1887 83 71 0.00 n/a
1886 85 72 0.37 n/a
1885 85 76 0.09 n/a
1884 81 70 1.02 n/a
1883 82 70 0.00 n/a
1882 86 67 0.00 n/a
1881 85 69 0.05 n/a
1880 84 68 0.00 n/a
1879 79 70 0.81 n/a
1878 85 69 0.00 n/a
1877 91 73 0.14 n/a
1876 84 73 0.99 n/a
1875 80 60 0.00 n/a
1874 89 68 0.00 n/a
1873 82 75 0.14 n/a
1872 84 74 0.00 n/a
1871 80 n/a n/a n/a
What's the all-time high for Jacksonville on 9/21?
For the date of Sep 21, the highest temperature ever reached in Jacksonville history is 97 °F which happened in 1990.
Highest Temperatures in Jacksonville on September 21
Rank Temperature Year
1 97 °F 1990
2 96 °F 1925
3 95 °F 1954
3 95 °F 1955
5 94 °F 1992
5 94 °F 1988
7 93 °F 1997
8 92 °F 1993
8 92 °F 1977
8 92 °F 1893
8 92 °F 1945
8 92 °F 1986
8 92 °F 1930
What's the all-time low for Jacksonville on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Jacksonville history is 49 °F which happened in 1897.
Lowest Temperatures in Jacksonville on September 21
Rank Temperature Year
1 49 °F 1897
2 56 °F 1981
2 56 °F 1918
4 57 °F 2006
5 60 °F 1875
5 60 °F 1889
5 60 °F 1938
8 61 °F 1913
9 62 °F 1916
10 63 °F 1929
Lowest High Temperatures in Jacksonville on September 21
Rank Temperature Year
1 69 °F 1918
2 70 °F 1897
3 71 °F 1929
4 76 °F 2020
4 76 °F 1962
6 77 °F 1903
6 77 °F 1922
8 78 °F 1966
8 78 °F 1935
10 79 °F 1879
10 79 °F 1969
10 79 °F 1901
10 79 °F 1920
10 79 °F 1916
What's the most it has ever rained in Jacksonville on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Jacksonville history is 5.27 inches which happened in 1897.
All-Time Most Precipitation in Jacksonville on September 21
Rank Precipitation Year
1 5.27 inches 1897
2 2.50 inches 1935
3 1.99 inches 2008
3 1.99 inches 1904
5 1.71 inches 1969
6 1.07 inches 2005
7 1.03 inches 1949
8 1.02 inches 1884
9 0.99 inches 1952
9 0.99 inches 1876
Weather Station Details
Years Station Coordinates
1941–2024 Jacksonville location
1871–1940 Jacksonville WB location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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