1991-2020 Degrees Fahrenheit 1 52.2 51.9 0.3 72 57 1927 1936 1996 1994 normal 2 44.6 47.3 -2.7 20 109 1975 1934 1982 1996 bottom-third 1959 3 41.0 43.0 -2.0 38 91 2002 1910 1996 1994 bottom-third 4 38.7 38.9 -0.2 78 51 1899 1934,1987 1996 1994 normal 1994 5 34.5 36.2 -1.7 56 73 1899 1934 1996 1995 normal 1952,1971 6 31.4 34.5 -3.1 37 91 1969 1992 1996 1995 bottom-third 1903 7 29.9 34.4 -4.5 14 114 1979 1992 1982 1996 bottom-third 1950 8 31.6 35.8 -4.2 10 117 1899 1987 1982 1996 bottom-tenth 1922 9 34.2 38.2 -4.0 11 116 1899 1934,1987,1992 1982 1996 bottom-tenth 1907,1912,2019 10 37.5 41.1 -3.6 14 113 1899 1992 1982 1996 bottom-third 1951,1962,2019 11 40.2 43.6 -3.4 14 113 1899 1934,1992 1982 1996 bottom-third 1913,1920,2019 12 42.0 44.9 -2.9 17 110 1899 1934 1982 1996 bottom-third 2019 18 38.2 41.4 -3.2 10 116 1979 1988 1979 1996 bottom-tenth 1918 24 42.0 44.9 -2.9 8 117 1917,1979 1988,2013 1979 1996 bottom-tenth 1900 36 43.0 44.9 -1.9 22 101 1952 2000 1980 1996 bottom-third 1912,1949 48 43.0 45.0 -2.0 16 105 1952 1934 1972 1996 bottom-third 1899,1906 60 42.9 45.0 -2.1 8 111 1952 2016 1954 1996 bottom-tenth 1916,1954