1901-2000 Degrees Fahrenheit 1 15.0 24.8 -9.8 9 121 1936 1998 1901 1903 bottom-tenth 2 14.5 23.1 -8.6 8 122 1979 1998 1895 1903 bottom-tenth 3 15.5 24.0 -8.5 1 128 1904 1932 1904 1903 lowest 4 20.2 27.5 -7.3 2 127 1977 2002 1904 1903 bottom-tenth 5 26.4 32.5 -6.1 3 126 1977 1932 1904 1903 bottom-tenth 6 32.3 37.7 -5.4 3 126 1977 1932 1904 1903 bottom-tenth 7 37.4 42.4 -5.0 3 126 1977 1932 1904 1903 bottom-tenth 8 41.8 46.3 -4.5 3 126 1977 1932 1904 1903 bottom-tenth 9 44.2 48.8 -4.6 1 128 1904,1918 1932 1904 1903 lowest 1918 10 45.9 49.8 -3.9 3 126 1918 1932 1904 1903 bottom-tenth 11 46.1 49.6 -3.5 2 127 1918 1932 1904 1903 bottom-tenth 1977 12 45.7 48.5 -2.8 4 125 1918 2017 1904 1903 bottom-tenth 18 42.9 44.9 -2.0 6 122 1905 2017 1904 1903 bottom-tenth 24 46.9 48.4 -1.5 5 123 1905 2017 1904 1903 bottom-tenth 1963,1978 36 47.2 48.4 -1.2 7 120 1918 2013 1904 1903 bottom-tenth 1920,1963 48 47.5 48.4 -0.9 11 115 1905,1918 2002 1904 1903 bottom-tenth 1908,1928,1929 60 47.8 48.4 -0.6 17 108 1905,1908 2002 1904 1903 bottom-third 1912,1927,1970