St. Petersburg August 21 Weather Records

Daily averages and all-time records for weather in St. Petersburg, Florida for the date of August 21.
August 21 All-Time Records
1892–2024
Highest temperature 95 °F 2022
Lowest temperature 70 °F 1937
Lowest daily high 80 °F 1917
Highest daily low 84 °F 2021
Most precipitation 2.66 inches 1981
Most snow none -
August 21 Average Weather
1991–2020 1
Average high 89.8 °F
Average low 78.0 °F
Chance precipitation 52.5%
Chance snow 0%
St. Petersburg August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 93 82 0.00 0.0
2022 95 80 0.03 0.0
2021 93 84 0.00 0.0
2020 89 77 0.08 0.0
2019 93 80 0.00 0.0
2018 90 79 0.00 0.0
2017 93 81 0.00 0.0
2016 86 78 0.00 0.0
2015 93 81 0.00 0.0
2014 93 80 0.00 0.0
2013 93 80 0.09 0.0
2012 90 74 2.60 0.0
2011 92 78 0.49 n/a
2010 91 81 0.09 n/a
2009 90 79 0.15 n/a
2008 86 81 0.02 n/a
2007 94 81 0.00 n/a
2006 90 78 0.00 n/a
2005 93 84 0.03 n/a
2004 89 77 0.51 n/a
2003 85 76 0.35 n/a
2002 90 76 0.12 n/a
2001 89 77 2.33 n/a
2000 93 80 0.00 n/a
1999 88 75 0.91 n/a
1998 89 77 0.00 0.0
1997 90 80 0.09 0.0
1996 88 75 0.00 0.0
1995 90 75 0.00 0.0
1994 89 78 0.00 0.0
1993 90 80 0.00 0.0
1992 92 77 0.07 0.0
1991 89 75 1.30 0.0
1990 90 78 0.00 0.0
1989 91 77 0.02 0.0
1988 94 80 0.00 0.0
1987 93 76 0.29 0.0
1986 87 n/a 0.04 0.0
1985 n/a n/a 0.00 0.0
1984 86 73 1.32 0.0
1983 92 80 0.00 0.0
1982 89 77 0.00 0.0
1981 88 73 2.66 0.0
1980 92 80 0.00 0.0
1979 91 76 0.01 0.0
1978 92 79 0.00 0.0
1977 86 79 0.01 0.0
1976 89 77 0.00 0.0
1975 91 75 0.00 0.0
1974 89 76 0.00 0.0
1973 90 72 0.49 0.0
1972 88 72 0.22 0.0
1971 93 78 0.10 0.0
1970 87 76 0.05 0.0
1969 92 79 0.00 0.0
1968 92 78 0.30 0.0
1967 89 76 0.00 0.0
1966 92 80 0.00 0.0
1965 90 78 0.00 0.0
1964 83 76 0.92 0.0
1963 85 72 0.97 0.0
1962 94 75 0.00 0.0
1961 90 72 0.00 0.0
1960 88 77 0.35 0.0
1959 91 75 0.41 0.0
1958 89 78 0.03 0.0
1957 90 75 0.00 0.0
1956 88 72 0.54 0.0
1955 90 75 0.25 0.0
1954 94 74 0.65 0.0
1953 87 74 0.35 0.0
1952 90 73 0.00 0.0
1951 95 76 0.10 0.0
1950 91 75 0.00 0.0
1949 88 71 1.25 0.0
1948 93 75 0.00 0.0
1947 90 74 0.00 n/a
1946 88 76 0.01 n/a
1945 93 77 0.14 n/a
1944 92 74 0.58 n/a
1943 86 76 0.12 n/a
1942 92 78 0.00 n/a
1941 93 75 0.78 n/a
1940 89 73 0.75 n/a
1939 92 77 0.22 n/a
1938 93 79 0.00 n/a
1937 91 70 1.64 n/a
1936 93 78 0.00 n/a
1935 92 78 0.03 n/a
1934 90 79 0.05 n/a
1933 92 75 0.00 n/a
1932 91 74 0.27 n/a
1931 92 80 0.00 n/a
1930 89 74 0.00 n/a
1929 89 71 1.54 n/a
1928 94 78 0.00 n/a
1927 92 76 0.00 n/a
1926 92 78 0.00 n/a
1925 92 80 0.00 n/a
1924 92 76 0.00 n/a
1923 88 72 0.58 n/a
1922 88 74 0.02 n/a
1921 90 76 0.35 n/a
1920 90 77 0.00 n/a
1919 92 79 0.00 n/a
1918 89 72 0.00 n/a
1917 80 71 0.59 n/a
1916 91 77 0.00 n/a
1915 92 76 0.00 n/a
1914 88 76 0.00 n/a
1913 n/a n/a n/a n/a
1912 n/a n/a n/a n/a
1911 n/a n/a n/a n/a
1910 n/a n/a n/a n/a
1909 n/a n/a n/a n/a
1908 n/a n/a n/a n/a
1907 n/a n/a n/a n/a
1906 n/a n/a n/a n/a
1905 n/a n/a n/a n/a
1904 n/a n/a n/a n/a
1903 n/a n/a n/a n/a
1902 n/a n/a n/a n/a
1901 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 n/a n/a n/a n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 n/a n/a n/a n/a
1894 n/a n/a n/a n/a
1893 90 77 0.00 n/a
1892 92 75 n/a n/a
What's the all-time high for St. Petersburg on 8/21?
For the date of Aug 21, the highest temperature ever reached in St. Petersburg history is 95 °F which has happened 2 times, most recently in 2022.
Highest Temperatures in St. Petersburg on August 21
Rank Temperature Year
1 95 °F 2022
1 95 °F 1951
3 94 °F 2007
3 94 °F 1954
3 94 °F 1988
3 94 °F 1928
3 94 °F 1962
8 93 °F 1971
8 93 °F 1987
8 93 °F 1941
8 93 °F 1936
8 93 °F 2013
8 93 °F 1948
8 93 °F 2014
8 93 °F 2015
8 93 °F 2017
8 93 °F 2019
8 93 °F 2021
8 93 °F 1945
8 93 °F 2005
8 93 °F 1938
8 93 °F 2000
8 93 °F 2023
What's the all-time low for St. Petersburg on 8/21?
For the date of Aug 21, the lowest temperature ever reached in St. Petersburg history is 70 °F which happened in 1937.
Lowest Temperatures in St. Petersburg on August 21
Rank Temperature Year
1 70 °F 1937
2 71 °F 1949
2 71 °F 1917
2 71 °F 1929
5 72 °F 1923
5 72 °F 1961
5 72 °F 1963
5 72 °F 1956
5 72 °F 1972
5 72 °F 1918
5 72 °F 1973
Lowest High Temperatures in St. Petersburg on August 21
Rank Temperature Year
1 80 °F 1917
2 83 °F 1964
3 85 °F 2003
3 85 °F 1963
5 86 °F 1977
5 86 °F 1943
5 86 °F 2008
5 86 °F 2016
5 86 °F 1984
10 87 °F 1970
10 87 °F 1953
10 87 °F 1986
What's the most it has ever rained in St. Petersburg on 8/21?
For the date of Aug 21, the most precipitation ever recorded in St. Petersburg history is 2.66 inches which happened in 1981.
All-Time Most Precipitation in St. Petersburg on August 21
Rank Precipitation Year
1 2.66 inches 1981
2 2.60 inches 2012
3 2.33 inches 2001
4 1.64 inches 1937
5 1.54 inches 1929
6 1.32 inches 1984
7 1.30 inches 1991
8 1.25 inches 1949
9 0.97 inches 1963
10 0.92 inches 1964
Weather Station Details
Years Station Coordinates
1999–2024 St Petersburg AP location
1892–1998 St. Petersburg location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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