1991-2020 Degrees Fahrenheit 1 17.6 28.6 -11.0 8 119 1979 1953 1916 1917 bottom-tenth 2 22.8 28.3 -5.5 14 112 1979 1934 1917 1914 bottom-third 3 29.5 31.4 -1.9 42 81 1979 1934 1917 1914 normal 1926 4 33.8 36.0 -2.2 29 92 1979 1934 1917 1914 bottom-third 1908,1971,1974,1988,2001,2008 5 39.5 41.6 -2.1 31 89 1979 1934 1917 1914 bottom-third 1896,1968,1969,1978 6 44.3 46.9 -2.6 23 97 1979 2022 1917 1914 bottom-third 1942 7 48.6 51.0 -2.4 23 97 1979 2022 1917 1915 bottom-third 1897,1920,1974 8 50.8 53.2 -2.4 21 98 1979 2022 1917 1915 bottom-third 9 50.7 53.7 -3.0 10 109 1916 2022 1917 1915 bottom-tenth 1913 10 50.1 53.2 -3.1 9 109 1908 2013 1917 1915 bottom-tenth 1930 11 48.4 52.0 -3.6 4 114 1916 2013 1916 1917 bottom-tenth 1979 12 46.9 50.3 -3.4 7 111 1916 2013 1916 1917 bottom-tenth 1909 18 45.4 49.1 -3.7 2 111 1913 1935 1916 1917 bottom-tenth 1916 24 47.3 50.3 -3.0 7 104 1910 1935 1917 1912 bottom-tenth 36 46.9 50.3 -3.4 1 105 1910,1918 2001,2002 1910 1917 lowest 1910 48 47.2 50.3 -3.1 1 101 1918 2002 1918 1913 lowest 60 -99 50.3 -99 -99 -99 1913,1920 2003 normal