1901-2000 Degrees Fahrenheit 1 61.0 64.3 -3.3 12 117 1901 1986,2015 1901 1903 bottom-tenth 2 66.8 68.3 -1.5 18 111 1917 2020 1903 1902 bottom-third 1924,1974 3 70.9 71.9 -1.0 22 107 1917 2020 1903 1902 bottom-third 1952,1954,1963,2008 4 73.1 74.2 -1.1 15 114 1917 2020 1903 1902 bottom-third 1908,1914,1932 5 74.4 75.5 -1.1 11 118 1917 2020 1903 1902 bottom-tenth 6 75.1 76.2 -1.1 9 120 1917 1998,2020 1903 1902 bottom-tenth 1920,1930,1937 7 75.0 76.0 -1.0 11 118 1917 1998 1903 1902 bottom-tenth 1937 8 74.1 75.2 -1.1 9 120 1917 2015 1903 1902 bottom-tenth 9 73.2 74.0 -0.8 18 111 1901 2015,2020 1903 1902 bottom-third 1928,1950,1966 10 72.0 72.5 -0.5 28 101 1901 2020 1903 1902 bottom-third 1906,1941,1960,1967,1984 11 70.4 71.2 -0.8 20 109 1940 2020 1901 1903 bottom-third 1915,1978,1981 12 68.9 70.1 -1.2 6 122 1940 2020 1901 1903 bottom-tenth 1958 18 70.9 72.2 -1.3 3 125 1940 2020 1904 1903 bottom-tenth 24 69.2 70.1 -0.9 7 120 1902,1941 2020 1902 1903 bottom-tenth 1940,1977 36 69.3 70.1 -0.8 5 121 1903,1942,1970 2020 1903 1901 bottom-tenth 1916,1917,1918,1969,1971,1978 48 69.0 70.1 -1.1 1 124 1904 2020 1904 1903 lowest 60 69.2 70.1 -0.9 1 123 1904,1905,1970 2020 1904 1903 lowest 1905,1970