1901-2000 Degrees Fahrenheit 1 32.1 30.3 1.8 78 52 1903 1995 1966 1963 normal 1912 2 28.9 27.9 1.0 70 60 1949 2015 1966 1965 normal 1990 3 27.7 27.6 0.1 58 71 1949 2015 1966 1965 normal 4 30.8 29.7 1.1 79 50 1949 2015 1966 1963 normal 1926,1977 5 34.2 33.5 0.7 75 54 1949 1934,2015 1964 1966 normal 1901 6 38.9 38.0 0.9 83 46 1949 2015 1966 1965 normal 1965,1992,2004,2020 7 43.4 42.5 0.9 81 48 1917 1934 1966 1963 normal 1958,2013 8 47.1 46.1 1.0 81 48 1917 1934 1966 1963 normal 1992,1998,2013 9 49.0 48.1 0.9 78 51 1917 1934 1966 1963 normal 1902,1986 10 49.9 48.8 1.1 89 40 1917 2015 1966 1961 top-third 1954 11 49.5 48.5 1.0 89 40 1913 2015,2022 1966 1963 top-third 1943,1996,1999 12 48.6 47.5 1.1 90 39 1913 2015,2018 1966 1961 top-third 1986 18 45.0 44.4 0.6 81 47 1913 1935 1966 1964 normal 1955,2020 24 47.5 47.5 0.0 55 73 1899,1913,1914 2018 1966 1964 normal 1934 36 47.3 47.5 -0.2 44 83 1899,1914 2017,2018 1966 1965 normal 1912,1952,1977 48 47.4 47.5 -0.1 51 75 1899 2018 1966 1965 normal 1971 60 47.6 47.5 0.1 60 65 1900,1917 2018,2019 1966 1965 normal 1930,1955,1971