Washington D.C. August 18 Weather Records

Daily averages and all-time records for weather in Washington D.C. for the date of August 18.
August 18 All-Time Records
1851–2024
Highest temperature 98 °F 2002
Lowest temperature 54 °F 1902
Lowest daily high 68 °F 1918
Highest daily low 84 °F 1858
Most precipitation 1.67 inches 1875
Most snow none -
August 18 Average Weather
1991–2020 1
Average high 87.0 °F
Average low 70.2 °F
Chance precipitation 28.0%
Chance snow 0%
Washington D.C. August 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 85 71 0.00 0.0
2022 87 64 0.00 0.0
2021 87 79 0.36 0.0
2020 88 68 0.00 0.0
2019 96 76 0.00 0.0
2018 90 76 0.00 0.0
2017 91 78 0.51 0.0
2016 92 74 0.00 0.0
2015 90 74 0.00 0.0
2014 84 72 0.00 0.0
2013 74 67 0.19 0.0
2012 86 69 0.16 0.0
2011 91 74 0.00 0.0
2010 82 69 0.52 0.0
2009 95 74 0.00 0.0
2008 93 69 0.00 0.0
2007 83 69 0.00 0.0
2006 87 68 0.00 0.0
2005 89 69 0.00 0.0
2004 86 69 0.14 0.0
2003 85 71 0.00 0.0
2002 98 79 0.00 0.0
2001 87 68 0.00 0.0
2000 75 64 0.08 0.0
1999 95 76 0.00 0.0
1998 92 71 0.00 0.0
1997 82 71 0.00 0.0
1996 87 70 0.00 0.0
1995 97 77 0.00 0.0
1994 79 72 0.01 0.0
1993 87 69 0.00 0.0
1992 83 68 0.00 0.0
1991 92 74 0.03 0.0
1990 87 70 0.00 0.0
1989 75 69 0.04 0.0
1988 92 76 0.01 0.0
1987 96 77 0.00 0.0
1986 87 74 0.00 0.0
1985 74 68 0.83 0.0
1984 84 69 0.00 0.0
1983 93 76 0.11 0.0
1982 83 64 0.00 0.0
1981 81 58 0.00 0.0
1980 76 67 0.22 0.0
1979 72 68 0.01 0.0
1978 90 73 0.00 0.0
1977 78 65 0.00 0.0
1976 85 67 0.00 0.0
1975 88 73 0.00 0.0
1974 87 65 0.00 0.0
1973 79 68 0.26 0.0
1972 85 68 0.05 0.0
1971 84 72 0.00 0.0
1970 89 68 0.00 0.0
1969 89 74 0.00 0.0
1968 91 76 0.00 0.0
1967 91 71 0.00 0.0
1966 92 67 0.00 0.0
1965 96 74 0.57 0.0
1964 87 65 0.00 0.0
1963 83 65 0.00 0.0
1962 83 63 0.00 0.0
1961 86 68 0.00 0.0
1960 84 66 0.00 0.0
1959 92 76 0.00 0.0
1958 81 65 0.00 0.0
1957 84 63 0.00 0.0
1956 93 72 0.00 0.0
1955 79 74 1.08 0.0
1954 78 65 0.00 0.0
1953 78 63 0.00 0.0
1952 85 68 0.33 0.0
1951 84 70 0.00 0.0
1950 88 70 0.00 0.0
1949 75 65 0.77 0.0
1948 85 64 1.13 0.0
1947 79 74 0.00 0.0
1946 83 72 0.00 0.0
1945 82 67 0.01 0.0
1944 85 70 0.03 0.0
1943 79 61 0.00 0.0
1942 81 69 0.00 0.0
1941 80 60 0.00 0.0
1940 87 72 0.00 0.0
1939 85 74 0.76 0.0
1938 78 67 0.06 0.0
1937 92 74 0.00 0.0
1936 87 62 0.00 0.0
1935 86 67 0.00 0.0
1934 80 64 0.00 0.0
1933 86 71 0.00 0.0
1932 80 68 0.48 0.0
1931 91 66 0.58 0.0
1930 82 65 0.00 0.0
1929 95 69 0.00 0.0
1928 86 68 0.00 0.0
1927 73 61 0.17 0.0
1926 73 69 0.20 0.0
1925 88 61 0.00 0.0
1924 72 56 0.00 0.0
1923 74 60 0.00 0.0
1922 92 72 0.00 0.0
1921 86 68 0.00 0.0
1920 84 70 0.05 0.0
1919 85 66 0.03 0.0
1918 68 62 0.15 0.0
1917 80 61 0.00 0.0
1916 87 65 0.00 0.0
1915 71 55 0.00 0.0
1914 94 65 0.00 0.0
1913 90 69 0.28 0.0
1912 92 73 0.00 0.0
1911 88 67 0.08 0.0
1910 84 67 0.00 0.0
1909 78 62 0.03 0.0
1908 86 70 0.18 0.0
1907 80 65 0.04 0.0
1906 84 71 0.00 0.0
1905 75 55 0.00 0.0
1904 79 67 0.00 0.0
1903 79 59 0.00 0.0
1902 83 54 0.00 0.0
1901 86 75 0.00 0.0
1900 93 69 0.00 0.0
1899 83 69 0.01 0.0
1898 88 70 0.29 0.0
1897 82 64 0.00 0.0
1896 80 62 0.00 0.0
1895 88 71 0.00 0.0
1894 86 67 0.00 0.0
1893 85 66 0.00 0.0
1892 90 66 0.00 0.0
1891 86 69 0.02 0.0
1890 81 71 0.24 0.0
1889 78 61 0.00 0.0
1888 85 72 0.17 0.0
1887 86 72 0.05 0.0
1886 76 63 0.00 0.0
1885 87 65 0.00 0.0
1884 88 68 0.00 0.0
1883 90 67 0.00 n/a
1882 82 67 0.00 n/a
1881 76 61 0.01 n/a
1880 75 62 0.05 n/a
1879 70 63 0.68 n/a
1878 87 68 0.00 n/a
1877 86 65 0.00 n/a
1876 76 73 0.00 n/a
1875 83 70 1.67 n/a
1874 92 59 0.00 n/a
1873 82 66 0.19 n/a
1872 93 72 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 0.00 n/a
1858 88 84 0.00 n/a
1857 n/a n/a 0.17 n/a
1856 n/a 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 0.94 n/a
1852 n/a n/a n/a n/a
1851 81 74 n/a n/a
What's the all-time high for Washington D.C. on 8/18?
For the date of Aug 18, the highest temperature ever reached in Washington D.C. history is 98 °F which happened in 2002.
Highest Temperatures in Washington D.C. on August 18
Rank Temperature Year
1 98 °F 2002
2 97 °F 1995
3 96 °F 1987
3 96 °F 2019
3 96 °F 1965
6 95 °F 2009
6 95 °F 1999
6 95 °F 1929
9 94 °F 1914
10 93 °F 2008
10 93 °F 1872
10 93 °F 1900
10 93 °F 1956
10 93 °F 1983
What's the all-time low for Washington D.C. on 8/18?
For the date of Aug 18, the lowest temperature ever reached in Washington D.C. history is 54 °F which happened in 1902.
Lowest Temperatures in Washington D.C. on August 18
Rank Temperature Year
1 54 °F 1902
2 55 °F 1905
2 55 °F 1915
4 56 °F 1924
5 58 °F 1981
6 59 °F 1874
6 59 °F 1903
8 60 °F 1941
8 60 °F 1923
10 61 °F 1927
10 61 °F 1881
10 61 °F 1925
10 61 °F 1889
10 61 °F 1917
10 61 °F 1943
Lowest High Temperatures in Washington D.C. on August 18
Rank Temperature Year
1 68 °F 1918
2 70 °F 1879
3 71 °F 1915
4 72 °F 1924
4 72 °F 1979
6 73 °F 1926
6 73 °F 1927
8 74 °F 2013
8 74 °F 1985
8 74 °F 1923
What's the most it has ever rained in Washington D.C. on 8/18?
For the date of Aug 18, the most precipitation ever recorded in Washington D.C. history is 1.67 inches which happened in 1875.
All-Time Most Precipitation in Washington D.C. on August 18
Rank Precipitation Year
1 1.67 inches 1875
2 1.13 inches 1948
3 1.08 inches 1955
4 0.94 inches 1853
5 0.83 inches 1985
6 0.77 inches 1949
7 0.76 inches 1939
8 0.68 inches 1879
9 0.58 inches 1931
10 0.57 inches 1965
Weather Station Details
Years Station Coordinates
1945–2024 Washington Reagan Airport location
1851–1945 Washington D.C. location