1991-2020 Degrees Fahrenheit 1 77.3 82.7 -5.4 4 125 1916 1993 1906 1905 bottom-tenth 2 77.5 81.2 -3.7 21 108 1929 1998 1904 1905 bottom-third 1913,1965 3 74.9 78.7 -3.8 11 118 1903,1920 1998 1904 1905 bottom-tenth 1966,1972 4 72.5 75.6 -3.1 21 108 1907 2011 1904 1905 bottom-third 1911,1917 5 69.0 72.5 -3.5 13 116 1920,1926 2011,2012,2016,2020 1904 1905 bottom-tenth 1966 6 65.6 69.3 -3.7 12 117 1895 2019 1901 1905 bottom-tenth 1924 7 63.5 66.6 -3.1 20 109 1895 2017 1905 1905 bottom-third 1902,1905,1914,1988 8 61.4 64.9 -3.5 13 115 1940 2017 1904 1905 bottom-tenth 1900,1931,1964,1966 9 61.0 64.2 -3.2 16 112 1904,1940 2017 1904 1905 bottom-third 1910,1966,1977,1978 10 61.5 64.6 -3.1 16 112 1904 2017 1905 1905 bottom-third 1901,1905,1963,1966 11 62.8 65.8 -3.0 19 109 1904 2017 1905 1903 bottom-third 1900 12 64.0 67.1 -3.1 15 113 1904,1918 2017 1905 1903 bottom-third 1963,1964 18 64.9 67.8 -2.9 14 114 1902 2020 1905 1903 bottom-third 1901,1931,1941,1958 24 64.0 67.1 -3.1 11 116 1905 2017,2020 1905 1903 bottom-tenth 1964 36 63.6 67.0 -3.4 1 125 1906 2019,2021 1906 1905 lowest 48 64.0 67.0 -3.0 3 122 1905 2020 1905 1903 bottom-tenth 1907 60 63.8 66.9 -3.1 1 123 1906 2020 1906 1905 lowest