1991-2020 Degrees Fahrenheit 1 34.8 36.9 -2.1 79 51 1924 2012 1984 1982 normal 2 28.9 33.1 -4.2 42 88 1899 2017 1975 1984 bottom-third 1896,1919 3 25.6 31.7 -6.1 19 111 1899 2015 1964 1984 bottom-third 1922,1936 4 25.9 30.8 -4.9 16 113 1899 1934 1984 1983 bottom-third 5 27.6 31.8 -4.2 16 112 1899 2000 1984 1983 bottom-third 1936,1964 6 29.6 34.2 -4.6 9 119 1899 1934 1962 1984 bottom-tenth 1924 7 32.9 37.8 -4.9 6 122 1899 1934 1962 1984 bottom-tenth 8 37.1 41.6 -4.5 8 120 1899 2017 1962 1984 bottom-tenth 9 40.5 44.7 -4.2 8 120 1899 2017 1962 1984 bottom-tenth 1903 10 42.3 46.5 -4.2 8 120 1899 2017 1962 1984 bottom-tenth 1952 11 43.3 47.0 -3.7 13 115 1899 2017 1962 1984 bottom-tenth 1903 12 42.7 46.6 -3.9 10 118 1899 2017 1984 1984 bottom-tenth 1984 18 38.4 42.5 -4.1 6 120 1913 1935,2017 1930 1984 bottom-tenth 24 42.7 46.6 -3.9 7 119 1913 2017 1930 1984 bottom-tenth 1914 36 43.5 46.6 -3.1 14 110 1914 2017,2018 1931 1984 bottom-third 1905,1929 48 44.3 46.6 -2.3 37 85 1915 2018 1949 1984 bottom-third 1928,1933 60 44.9 46.6 -1.7 49 71 1917 2019 1980 1984 normal 1934,1940,1955,1959,1964,1974,1976,1979,1980