Washington D.C. September 21 Weather Records

Daily averages and all-time records for weather in Washington D.C. for the date of September 21.
September 21 All-Time Records
1851–2024
Highest temperature 96 °F 1895
Lowest temperature 41 °F 1956
Lowest daily high 60 °F 1918
Highest daily low 74 °F 1989
Most precipitation 2.18 inches 1979
Most snow none -
September 21 Average Weather
1991–2020 1
Average high 78.4 °F
Average low 61.6 °F
Chance precipitation 27.9%
Chance snow 0%
Washington D.C. September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 80 60 0.00 0.0
2022 86 65 0.00 0.0
2021 82 65 0.00 0.0
2020 68 48 0.00 0.0
2019 88 61 0.00 0.0
2018 78 68 0.28 0.0
2017 88 67 0.00 0.0
2016 82 73 0.00 0.0
2015 70 63 0.23 0.0
2014 86 64 0.00 0.0
2013 80 64 0.87 0.0
2012 80 59 0.00 0.0
2011 76 64 0.02 0.0
2010 80 56 0.00 0.0
2009 80 60 0.00 0.0
2008 82 56 0.00 0.0
2007 83 63 0.00 0.0
2006 70 50 0.00 0.0
2005 85 66 0.00 0.0
2004 79 54 0.00 0.0
2003 79 66 0.00 0.0
2002 88 69 0.00 0.0
2001 80 64 0.03 0.0
2000 78 61 0.00 0.0
1999 68 52 0.95 0.0
1998 92 70 0.06 0.0
1997 70 56 0.00 0.0
1996 78 56 0.00 0.0
1995 81 69 0.00 0.0
1994 77 58 0.00 0.0
1993 74 60 0.34 0.0
1992 79 66 0.00 0.0
1991 69 51 0.00 0.0
1990 73 55 0.00 0.0
1989 89 74 0.00 0.0
1988 78 64 0.00 0.0
1987 75 63 0.00 0.0
1986 85 67 0.00 0.0
1985 83 60 0.00 0.0
1984 82 63 0.00 0.0
1983 80 59 1.02 0.0
1982 70 61 0.00 0.0
1981 80 60 0.00 0.0
1980 92 72 0.00 0.0
1979 74 65 2.18 0.0
1978 84 68 0.00 0.0
1977 77 67 0.00 0.0
1976 73 60 0.00 0.0
1975 74 63 0.00 0.0
1974 84 58 0.08 0.0
1973 65 61 0.00 0.0
1972 64 60 0.04 0.0
1971 76 62 0.06 0.0
1970 88 66 0.00 0.0
1969 68 57 0.01 0.0
1968 85 58 0.00 0.0
1967 84 68 0.15 0.0
1966 69 60 0.97 0.0
1965 92 74 0.00 0.0
1964 74 60 0.00 0.0
1963 74 56 0.12 0.0
1962 63 44 0.00 0.0
1961 86 69 0.00 0.0
1960 75 65 0.00 0.0
1959 83 56 0.00 0.0
1958 70 60 0.94 0.0
1957 88 70 0.00 0.0
1956 64 41 0.00 0.0
1955 76 56 0.00 0.0
1954 80 63 0.09 0.0
1953 83 57 0.18 0.0
1952 75 59 0.00 0.0
1951 83 60 0.00 0.0
1950 73 65 0.63 0.0
1949 74 52 0.00 0.0
1948 75 59 0.87 0.0
1947 81 64 0.00 0.0
1946 82 67 0.50 0.0
1945 84 63 0.00 0.0
1944 84 67 0.72 0.0
1943 67 61 0.06 0.0
1942 69 50 0.00 0.0
1941 79 54 0.00 0.0
1940 92 66 0.00 0.0
1939 75 60 0.00 0.0
1938 66 52 0.21 0.0
1937 72 47 0.00 0.0
1936 86 64 0.00 0.0
1935 89 59 0.00 0.0
1934 68 64 1.92 0.0
1933 68 60 0.00 0.0
1932 79 66 0.14 0.0
1931 95 70 0.00 0.0
1930 88 66 0.00 0.0
1929 64 46 0.00 0.0
1928 78 56 0.00 0.0
1927 68 54 0.00 0.0
1926 80 63 0.00 0.0
1925 87 66 0.00 0.0
1924 66 60 0.23 0.0
1923 78 71 0.62 0.0
1922 74 58 0.00 0.0
1921 79 67 1.03 0.0
1920 74 55 0.00 0.0
1919 87 70 0.00 0.0
1918 60 45 0.03 0.0
1917 81 60 0.00 0.0
1916 74 44 0.00 0.0
1915 75 55 0.21 0.0
1914 92 58 0.00 0.0
1913 80 56 1.05 0.0
1912 78 54 0.00 0.0
1911 77 55 0.02 0.0
1910 82 63 0.00 0.0
1909 75 62 0.00 0.0
1908 72 59 0.00 0.0
1907 91 68 0.00 0.0
1906 92 68 0.00 0.0
1905 80 63 0.00 0.0
1904 69 51 0.00 0.0
1903 73 45 0.00 0.0
1902 72 67 0.09 0.0
1901 69 49 0.00 0.0
1900 81 66 0.00 0.0
1899 68 54 0.52 0.0
1898 73 52 0.00 0.0
1897 63 45 0.00 0.0
1896 70 47 0.00 0.0
1895 96 70 0.00 0.0
1894 83 55 0.00 0.0
1893 75 54 0.00 0.0
1892 64 57 0.18 0.0
1891 82 56 0.00 0.0
1890 69 48 0.00 0.0
1889 62 51 0.00 0.0
1888 76 62 0.03 0.0
1887 77 56 0.00 0.0
1886 72 47 0.00 0.0
1885 66 59 0.00 0.0
1884 75 51 0.00 0.0
1883 78 52 0.00 n/a
1882 84 66 0.09 n/a
1881 88 60 0.00 n/a
1880 79 64 0.00 n/a
1879 61 55 0.10 n/a
1878 76 60 0.00 n/a
1877 72 52 0.00 n/a
1876 72 62 0.00 n/a
1875 62 44 0.00 n/a
1874 68 52 0.00 n/a
1873 66 44 0.00 n/a
1872 81 48 0.00 n/a
1871 n/a n/a 0.00 n/a
1870 n/a n/a n/a n/a
1869 n/a n/a n/a n/a
1868 n/a n/a n/a n/a
1867 n/a n/a n/a n/a
1866 n/a n/a n/a n/a
1865 n/a n/a n/a n/a
1864 n/a n/a n/a n/a
1863 n/a n/a n/a n/a
1862 n/a n/a n/a n/a
1861 n/a n/a n/a n/a
1860 n/a n/a n/a n/a
1859 n/a n/a 0.35 n/a
1858 n/a n/a 0.00 n/a
1857 n/a n/a n/a n/a
1856 76 n/a 0.00 n/a
1855 n/a n/a 0.00 n/a
1854 n/a n/a n/a n/a
1853 n/a n/a n/a n/a
1852 n/a n/a n/a n/a
1851 82 59 n/a n/a
What's the all-time high for Washington D.C. on 9/21?
For the date of Sep 21, the highest temperature ever reached in Washington D.C. history is 96 °F which happened in 1895.
Highest Temperatures in Washington D.C. on September 21
Rank Temperature Year
1 96 °F 1895
2 95 °F 1931
3 92 °F 1998
3 92 °F 1940
3 92 °F 1980
3 92 °F 1914
3 92 °F 1906
3 92 °F 1965
9 91 °F 1907
10 89 °F 1989
10 89 °F 1935
What's the all-time low for Washington D.C. on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Washington D.C. history is 41 °F which happened in 1956.
Lowest Temperatures in Washington D.C. on September 21
Rank Temperature Year
1 41 °F 1956
2 44 °F 1916
2 44 °F 1962
2 44 °F 1873
2 44 °F 1875
6 45 °F 1903
6 45 °F 1897
6 45 °F 1918
9 46 °F 1929
10 47 °F 1896
10 47 °F 1937
10 47 °F 1886
Lowest High Temperatures in Washington D.C. on September 21
Rank Temperature Year
1 60 °F 1918
2 61 °F 1879
3 62 °F 1889
3 62 °F 1875
5 63 °F 1962
5 63 °F 1897
7 64 °F 1956
7 64 °F 1892
7 64 °F 1972
7 64 °F 1929
What's the most it has ever rained in Washington D.C. on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Washington D.C. history is 2.18 inches which happened in 1979.
All-Time Most Precipitation in Washington D.C. on September 21
Rank Precipitation Year
1 2.18 inches 1979
2 1.92 inches 1934
3 1.05 inches 1913
4 1.03 inches 1921
5 1.02 inches 1983
6 0.97 inches 1966
7 0.95 inches 1999
8 0.94 inches 1958
9 0.87 inches 2013
9 0.87 inches 1948
Weather Station Details
Years Station Coordinates
1945–2024 Washington Reagan Airport location
1851–1945 Washington D.C. location