1991-2020 Degrees Fahrenheit 1 35.2 35.2 0.0 59 67 1919 1917 1985 1982 normal 2 38.1 38.4 -0.3 66 60 1985 1917 1985 1981 normal 1996 3 43.5 43.1 0.4 79 45 1985 1950 1985 1981 normal 1952 4 47.6 48.8 -1.2 49 74 1985 1953 1985 1982 normal 1909 5 53.7 54.1 -0.4 73 50 1985 2012 1985 1981 normal 2006 6 56.3 57.7 -1.4 40 83 1985 2014 1985 1982 bottom-third 1901,1908,1922,1926,1929,1961,1970 7 58.5 58.9 -0.4 71 52 1985 2021 1985 1981 normal 1922,1949,1961,2013 8 58.8 59.1 -0.3 78 45 1916 2021 1985 1981 normal 1981,2013 9 57.9 58.2 -0.3 74 49 1916 2021 1985 1981 normal 1941,1957,1965,1999,2013 10 57.0 57.0 0.0 85 38 1916 2021 1985 1979 top-third 1997 11 55.4 55.4 0.0 90 33 1916 2015 1985 1981 top-third 1937,1981,2013 12 54.1 53.8 0.3 99 24 1916 2015 1985 1981 top-third 1926,1938,1966,1981 18 53.3 55.1 -1.8 27 93 1916 2015 1985 1984 bottom-third 1936,1937 24 51.9 53.8 -1.9 27 93 1917 2016 1985 1984 bottom-third 1919 36 52.2 53.8 -1.6 31 87 1913 2016 1985 1984 bottom-third 1907,1908,1932,1944,1949 48 52.5 53.8 -1.3 38 78 1913,1916,1919 2016 1985 1984 bottom-third 1944,1946,1948,1965,1978 60 52.5 53.8 -1.3 36 78 1913,1916,1920 2016 1985 1984 bottom-third 1945,1953,1960,1964,1972,1979