1901-2000 Degrees Fahrenheit 1 60.1 64.1 -4.0 6 123 1911 1971,2003 1911 1910 bottom-tenth 1910 2 60.6 64.9 -4.3 2 127 1993 2003 1912 1911 bottom-tenth 3 60.2 62.7 -2.5 10 119 1993 1936 1907 1911 bottom-tenth 4 57.4 59.6 -2.2 9 120 1907 1936 1907 1911 bottom-tenth 1968 5 54.3 55.8 -1.5 20 109 1907 1936,1988 1911 1910 bottom-third 1935,1954 6 48.2 51.4 -3.2 5 124 1899 1988 1907 1911 bottom-tenth 7 44.6 47.1 -2.5 11 118 1899 2016 1907 1911 bottom-tenth 8 40.8 43.3 -2.5 12 117 1899 1934 1907 1911 bottom-tenth 9 38.4 40.8 -2.4 13 115 1899 2012 1907 1911 bottom-tenth 10 36.7 39.7 -3.0 6 122 1899 2000 1907 1911 bottom-tenth 11 37.0 40.0 -3.0 6 122 1899 2000,2016 1899 1911 bottom-tenth 12 38.2 41.1 -2.9 5 123 1899 2016 1899 1911 bottom-tenth 18 42.5 44.6 -2.1 7 121 1899 2016 1907 1911 bottom-tenth 1907 24 39.2 41.1 -1.9 9 118 1917 2016 1899 1911 bottom-tenth 36 40.1 41.1 -1.0 14 112 1899,1952 2017 1904 1911 bottom-third 1900,1922,1930 48 40.1 41.1 -1.0 14 111 1952 2017,2018 1900 1911 bottom-third 1915 60 40.4 41.1 -0.7 19 105 1952 2016 1907 1911 bottom-third 1924,1973