1901-2000 Degrees Fahrenheit 1 26.7 32.8 -6.1 5 125 1917 2017 1897 1896 bottom-tenth 2 24.3 29.2 -4.9 11 119 1903 2015 1897 1896 bottom-tenth 3 22.8 26.5 -3.7 17 113 1917 2015 1895 1896 bottom-third 4 23.3 25.6 -2.3 22 107 1917 2015 1896 1897 bottom-third 1942 5 24.2 26.9 -2.7 17 112 1917 1934 1896 1897 bottom-third 1955,1962 6 27.5 30.0 -2.5 16 113 1917 1934 1896 1897 bottom-third 1912,1962 7 31.4 33.8 -2.4 15 114 1917 1934,2015 1896 1896 bottom-third 1896 8 35.5 37.6 -2.1 14 115 1917 1934 1897 1896 bottom-third 1932 9 38.9 40.9 -2.0 14 115 1917 2015 1896 1897 bottom-third 10 41.4 42.8 -1.4 17 112 1917 1934 1896 1897 bottom-third 11 42.1 43.6 -1.5 15 114 1917 2015 1896 1897 bottom-third 1906 12 42.0 43.4 -1.4 16 113 1913 2015 1896 1897 bottom-third 1919,1924,1942 18 37.1 38.9 -1.8 5 123 1913 2018 1897 1897 bottom-tenth 1898,1914,1930,1974 24 41.8 43.4 -1.6 6 122 1913 2018 1897 1897 bottom-tenth 1909,1930 36 -99 43.4 -99 -99 -99 1914 2017,2018 normal 48 -99 43.4 -99 -99 -99 1915 2018 normal 60 -99 43.4 -99 -99 -99 1917 2018,2019 normal