Jacksonville August 21 Weather Records

Daily averages and all-time records for weather in Jacksonville, Florida for the date of August 21.
August 21 All-Time Records
1871–2024
Highest temperature 101 °F 1900
Lowest temperature 66 °F 1976
Lowest daily high 78 °F 2012
Highest daily low 80 °F 1900
Most precipitation 3.79 inches 1953
Most snow none -
August 21 Average Weather
1991–2020 1
Average high 90.5 °F
Average low 72.8 °F
Chance precipitation 47.6%
Chance snow 0%
Jacksonville August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 92 75 0.00 0.0
2022 92 73 0.07 0.0
2021 93 73 0.00 0.0
2020 88 71 0.00 0.0
2019 93 73 0.00 0.0
2018 90 74 0.08 0.0
2017 87 75 0.54 0.0
2016 97 73 0.00 n/a
2015 94 73 0.02 n/a
2014 97 73 0.00 n/a
2013 87 74 0.31 0.0
2012 78 71 0.35 n/a
2011 93 73 0.02 n/a
2010 96 75 2.52 n/a
2009 91 74 0.47 n/a
2008 79 75 2.99 n/a
2007 93 72 0.00 n/a
2006 95 73 0.00 n/a
2005 95 75 0.00 n/a
2004 89 73 0.07 n/a
2003 87 72 0.13 0.0
2002 90 72 0.00 0.0
2001 93 72 0.00 0.0
2000 86 76 0.00 0.0
1999 93 72 0.00 0.0
1998 88 76 0.30 0.0
1997 87 73 0.16 0.0
1996 87 69 0.02 0.0
1995 86 70 0.00 0.0
1994 93 72 0.00 0.0
1993 95 74 0.00 0.0
1992 92 72 0.51 0.0
1991 92 70 0.00 0.0
1990 96 72 0.00 0.0
1989 91 76 0.23 0.0
1988 95 75 0.03 0.0
1987 90 72 0.00 0.0
1986 92 71 0.06 0.0
1985 90 74 0.00 0.0
1984 85 69 0.01 0.0
1983 97 76 0.00 0.0
1982 91 71 0.12 0.0
1981 82 73 0.03 0.0
1980 97 75 0.00 0.0
1979 94 71 0.00 0.0
1978 90 72 0.00 0.0
1977 86 75 2.17 0.0
1976 87 66 0.00 0.0
1975 89 71 0.01 0.0
1974 85 70 0.16 0.0
1973 93 68 0.94 0.0
1972 85 69 0.18 0.0
1971 93 73 0.00 0.0
1970 87 72 0.72 0.0
1969 96 76 0.00 0.0
1968 96 76 0.00 0.0
1967 94 73 2.90 0.0
1966 96 71 0.00 0.0
1965 93 75 0.00 0.0
1964 89 72 0.00 0.0
1963 87 70 0.38 0.0
1962 94 74 0.00 0.0
1961 88 66 0.04 0.0
1960 96 71 0.00 0.0
1959 92 72 0.00 0.0
1958 88 72 0.01 0.0
1957 88 71 0.16 0.0
1956 89 74 0.35 0.0
1955 91 77 0.08 0.0
1954 93 74 0.00 0.0
1953 86 72 3.79 0.0
1952 92 71 0.00 0.0
1951 96 73 0.00 0.0
1950 94 72 1.40 0.0
1949 85 73 1.02 0.0
1948 92 71 0.00 0.0
1947 89 74 0.00 n/a
1946 86 73 0.09 0.0
1945 90 74 0.00 0.0
1944 90 74 0.00 n/a
1943 88 70 0.00 0.0
1942 90 76 0.00 0.0
1941 93 75 0.33 0.0
1940 86 68 1.64 0.0
1939 94 76 0.00 0.0
1938 89 73 0.00 0.0
1937 91 72 0.09 0.0
1936 87 74 1.15 0.0
1935 92 72 1.51 0.0
1934 93 75 0.00 0.0
1933 84 69 0.00 0.0
1932 86 72 0.55 0.0
1931 89 76 0.00 0.0
1930 82 68 0.00 0.0
1929 84 70 0.33 0.0
1928 91 74 0.01 0.0
1927 90 70 0.03 0.0
1926 90 74 0.00 0.0
1925 94 75 0.01 0.0
1924 88 72 0.00 0.0
1923 91 76 0.07 0.0
1922 81 69 0.00 0.0
1921 89 76 0.00 0.0
1920 92 76 0.08 0.0
1919 94 76 0.00 0.0
1918 80 68 0.07 0.0
1917 87 74 0.52 0.0
1916 83 71 0.22 0.0
1915 94 76 0.00 0.0
1914 88 71 0.95 n/a
1913 85 74 0.02 0.0
1912 93 72 0.52 0.0
1911 85 69 0.83 0.0
1910 83 71 0.00 0.0
1909 84 73 0.16 0.0
1908 88 75 0.08 0.0
1907 90 72 0.00 0.0
1906 88 74 0.00 0.0
1905 88 72 0.00 0.0
1904 93 75 0.00 0.0
1903 88 74 0.02 0.0
1902 98 79 0.00 0.0
1901 86 74 0.00 0.0
1900 101 80 0.00 0.0
1899 86 70 0.62 0.0
1898 88 73 0.37 0.0
1897 91 69 1.10 0.0
1896 86 72 0.00 0.0
1895 94 77 0.00 0.0
1894 90 68 0.31 0.0
1893 90 74 0.00 0.0
1892 91 73 0.00 n/a
1891 94 71 0.20 n/a
1890 93 74 0.00 n/a
1889 89 68 0.00 n/a
1888 93 76 0.00 n/a
1887 89 75 0.00 n/a
1886 84 70 0.22 n/a
1885 92 74 0.04 n/a
1884 94 72 0.00 n/a
1883 94 79 0.00 n/a
1882 84 73 0.02 n/a
1881 93 80 0.00 n/a
1880 91 73 0.00 n/a
1879 88 78 0.17 n/a
1878 96 77 0.29 n/a
1877 86 72 0.19 n/a
1876 98 73 0.00 n/a
1875 88 71 2.66 n/a
1874 90 73 0.00 n/a
1873 82 77 0.52 n/a
1872 84 78 0.00 n/a
What's the all-time high for Jacksonville on 8/21?
For the date of Aug 21, the highest temperature ever reached in Jacksonville history is 101 °F which happened in 1900.
Highest Temperatures in Jacksonville on August 21
Rank Temperature Year
1 101 °F 1900
2 98 °F 1902
2 98 °F 1876
4 97 °F 2014
4 97 °F 1983
4 97 °F 2016
4 97 °F 1980
8 96 °F 1968
8 96 °F 1966
8 96 °F 1878
8 96 °F 1960
8 96 °F 1951
8 96 °F 1990
8 96 °F 1969
8 96 °F 2010
What's the all-time low for Jacksonville on 8/21?
For the date of Aug 21, the lowest temperature ever reached in Jacksonville history is 66 °F which has happened 2 times, most recently in 1976.
Lowest Temperatures in Jacksonville on August 21
Rank Temperature Year
1 66 °F 1961
1 66 °F 1976
3 68 °F 1889
3 68 °F 1930
3 68 °F 1918
3 68 °F 1973
3 68 °F 1894
3 68 °F 1940
9 69 °F 1984
9 69 °F 1972
9 69 °F 1897
9 69 °F 1911
9 69 °F 1996
9 69 °F 1922
9 69 °F 1933
Lowest High Temperatures in Jacksonville on August 21
Rank Temperature Year
1 78 °F 2012
2 79 °F 2008
3 80 °F 1918
4 81 °F 1922
5 82 °F 1981
5 82 °F 1930
5 82 °F 1873
8 83 °F 1910
8 83 °F 1916
10 84 °F 1886
10 84 °F 1882
10 84 °F 1872
10 84 °F 1909
10 84 °F 1933
10 84 °F 1929
What's the most it has ever rained in Jacksonville on 8/21?
For the date of Aug 21, the most precipitation ever recorded in Jacksonville history is 3.79 inches which happened in 1953.
All-Time Most Precipitation in Jacksonville on August 21
Rank Precipitation Year
1 3.79 inches 1953
2 2.99 inches 2008
3 2.90 inches 1967
4 2.66 inches 1875
5 2.52 inches 2010
6 2.17 inches 1977
7 1.64 inches 1940
8 1.51 inches 1935
9 1.40 inches 1950
10 1.15 inches 1936
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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