1901-2000 Degrees Fahrenheit 1 50.7 52.2 -1.5 36 94 1917 1911 1902 1905 bottom-third 1976,1994 2 44.8 46.1 -1.3 26 104 1917 2010 1900 1905 bottom-third 1946 3 36.6 39.8 -3.2 10 120 1926 2012 1900 1905 bottom-tenth 4 31.5 34.0 -2.5 17 113 1926 2012 1905 1904 bottom-third 1940 5 29.7 30.2 -0.5 45 85 1923 2012 1905 1903 normal 1896,1993 6 28.4 28.6 -0.2 48 81 1907 2012 1905 1903 normal 1897,1908,1925 7 28.6 29.2 -0.6 41 88 1905 2012 1905 1903 bottom-third 1927,1939,1965 8 30.6 31.2 -0.6 35 94 1905 2012 1905 1903 bottom-third 1896,1916,1968,1977,2014 9 33.3 34.0 -0.7 34 95 1905 2012 1905 1903 bottom-third 1914 10 36.1 36.9 -0.8 28 101 1905 2012 1905 1903 bottom-third 1977 11 38.8 39.6 -0.8 28 101 1905 2012 1905 1903 bottom-third 1896,1900,1956,1993 12 40.5 41.4 -0.9 23 106 1905 2012 1905 1903 bottom-third 1941,1944,1967 18 35.2 37.1 -1.9 5 123 1905 2013 1905 1904 bottom-tenth 24 39.1 41.3 -2.2 2 126 1905 2013 1905 1904 bottom-tenth 1918 36 38.8 41.3 -2.5 1 126 1906 2023 1906 1905 lowest 48 39.5 41.3 -1.8 3 123 1907 2013,2023 1906 1905 bottom-tenth 60 39.9 41.3 -1.4 4 121 1908 2013,2023 1906 1905 bottom-tenth