1901-2000 Degrees Fahrenheit 1 75.5 72.1 3.4 120 9 1967 1925 1895 1895 top-tenth 2 76.4 74.6 1.8 111 18 1967 1925 1895 1895 top-third 1936,1990,2002 3 76.4 75.6 0.8 92 37 1967 1925 1895 1895 top-third 1935,1945,1955,1987 4 76.2 75.5 0.7 88 41 1967 1925 1895 1895 top-third 1922,1944,1945 5 74.3 74.0 0.3 73 56 1967 1902 1895 1895 normal 1938,1970,2008,2012 6 72.0 71.8 0.2 69 60 1961 1925 1895 1895 normal 1938,1948,1952,1957 7 69.1 69.0 0.1 69 60 1961 1925 1895 1895 normal 1915,1963,1970,1999,2003,2009 8 64.8 66.0 -1.2 15 114 1947 1925 1895 1895 bottom-third 1924,1961,1996 9 62.1 63.4 -1.3 17 112 1940 1921 1895 1895 bottom-third 1904,1964,1996 10 -99 61.4 -99 -99 -99 1940 2016 normal 11 -99 60.4 -99 -99 -99 1940 2016 normal 12 -99 60.5 -99 -99 -99 1940 2016 normal 18 -99 64.2 -99 -99 -99 1968,1977 2016,2017 normal 24 -99 60.5 -99 -99 -99 1969 2017 normal 36 -99 60.5 -99 -99 -99 1970 2018 normal 48 -99 60.5 -99 -99 -99 1969 2019 normal 60 -99 60.5 -99 -99 -99 1970,1971 2020 normal