1991-2020 Degrees Fahrenheit 1 76.4 74.4 2.0 109 13 1987 2015 1911 1908 top-third 2 74.0 72.2 1.8 112 9 1931 2015 1911 1908 top-tenth 1948,1997 3 69.3 70.4 -1.1 70 50 1958 2023 1910 1911 normal 1928,1932,2007,2009 4 68.0 68.8 -0.8 67 48 1958 2023 1910 1911 normal 1925,1930 5 68.2 68.5 -0.3 76 35 1958 2023 1911 1912 top-third 1927 6 68.8 68.9 -0.1 80 29 1958 2023 1911 1912 top-third 7 70.3 70.2 0.1 86 23 1958 2020 1911 1912 top-third 8 71.6 71.6 0.0 85 23 1958 2020 1911 1912 top-third 1974,1975,2013 9 72.6 72.9 -0.3 81 27 1958 2020 1911 1912 top-third 1922,1974 10 73.5 73.9 -0.4 82 26 1958 2020,2023 1911 1912 top-third 1974,1975,1982 11 74.2 74.6 -0.4 81 27 1958,1977 2020,2023 1911 1912 top-third 1972,1974 12 74.3 75.0 -0.7 75 33 1977 2020,2023 1911 1912 top-third 1975,1985,1990,1998,2005 18 71.8 72.8 -1.0 54 43 1978 2023 1911 1912 normal 1997,2011 24 73.4 74.9 -1.5 35 61 1978 2021,2023 1911 1912 normal 1920,1984 36 73.0 74.8 -1.8 15 71 1970,1971 2022 1911 1909 bottom-third 1926,1963,1967 48 73.0 74.7 -1.7 13 65 1969,1970,1971 2023 1911 1910 bottom-third 1910,1963,1965,1968,1981 60 73.1 74.7 -1.6 15 58 1970 2023 1911 1910 bottom-third 1910,1914,1963,1979