1991-2020 Degrees Fahrenheit 1 80.2 82.1 -1.9 64 58 1930 1998 1976 1975 normal 1999 2 77.8 80.5 -2.7 32 90 1917 2010 1976 1975 bottom-third 1938,1954,1961,1965,1971 3 75.5 78.5 -3.0 26 95 1903 2015 1976 1975 bottom-third 1920,1936,1937,1938,1955,1958 4 74.2 76.4 -2.2 56 64 1931 2015 1976 1975 normal 1909,1921,1939,1978,1986 5 71.5 74.5 -3.0 34 85 1931 2020 1971 1976 bottom-third 1950,1954 6 68.8 72.8 -4.0 12 102 1958 2020 1966 1976 bottom-third 7 67.8 71.9 -4.1 9 101 1958 2020 1960 1976 bottom-tenth 1904,1955,1978 8 67.6 71.9 -4.3 8 100 1940 2020 1960 1976 bottom-tenth 1955 9 68.1 72.5 -4.4 4 104 1958 2020 1958 1976 bottom-tenth 10 69.2 73.4 -4.2 4 103 1958 2020 1958 1976 bottom-tenth 11 70.3 74.3 -4.0 5 102 1958 2020 1958 1976 bottom-tenth 12 71.2 75.0 -3.8 5 102 1958 2020 1958 1976 bottom-tenth 1951 18 70.9 74.2 -3.3 10 91 1941 2020 1969 1976 bottom-tenth 1903,1910,1926 24 72.1 74.9 -2.8 15 80 1941 2020,2021 1970 1976 bottom-third 1924,1964 36 72.8 74.9 -2.1 33 52 1941 2022 1971 1976 normal 1914,1954 48 73.1 74.8 -1.7 35 42 1961 2022 1973 1976 normal 60 73.1 74.7 -1.6 31 41 1911 2022 1973 1976 normal