1901-2000 Degrees Fahrenheit 1 73.8 73.4 0.4 71 58 1915 1947 2013 2011 normal 1932 2 72.1 74.5 -2.4 10 119 1915 1936 2009 2013 bottom-tenth 3 72.4 73.5 -1.1 30 99 1915 1936 2009 2013 bottom-third 1960,1961 4 70.2 70.6 -0.4 48 81 1915 1936 2009 2013 normal 1902,1978,1982 5 66.6 66.8 -0.2 53 76 1907 1934 2013 2012 normal 6 61.3 62.3 -1.0 32 97 1950,1960 2012 2013 2012 bottom-third 1923 7 55.3 57.6 -2.3 10 119 1904 2012 1979 2013 bottom-tenth 8 50.8 53.6 -2.8 5 124 1912 2012 1979 2013 bottom-tenth 1924 9 48.1 50.9 -2.8 5 123 1904 2012 1979 2013 bottom-tenth 10 47.1 49.9 -2.8 4 124 1904 2012 1979 2013 bottom-tenth 1979 11 47.8 50.3 -2.5 5 123 1904 2012 1979 2013 bottom-tenth 12 49.5 51.6 -2.1 6 122 1904 2012 1979 2013 bottom-tenth 18 53.3 55.2 -1.9 4 124 1904 2012 1951 2013 bottom-tenth 1905 24 50.6 51.6 -1.0 13 114 1905 2017 1997 2013 bottom-tenth 1903,1913 36 52.5 51.6 0.9 95 31 1979 2018 2011 2013 top-third 1921,1943,1957,1991,1993 48 52.5 51.6 0.9 98 27 1905 2019 2011 2013 top-third 1924,1942,1989,1990,1991 60 52.6 51.6 1.0 100 24 1906 2020 2011 2013 top-third 2004