1901-2000 Degrees Fahrenheit 1 55.4 55.7 -0.3 56 73 1917 2015 1902 1904 normal 2 49.9 50.2 -0.3 41 88 1917 2010 1901 1904 bottom-third 1932,1937 3 44.0 44.9 -0.9 37 92 1967 2012 1904 1903 bottom-third 1960 4 37.4 39.9 -2.5 12 117 1907 2012 1904 1903 bottom-tenth 1914,1940,1978 5 33.9 36.8 -2.9 8 121 1907 2012 1904 1903 bottom-tenth 1926 6 31.6 35.3 -3.7 4 124 1904 2012 1904 1903 bottom-tenth 7 31.8 35.9 -4.1 1 127 1904,1905 2012 1904 1904 lowest 1904 8 33.6 37.7 -4.1 1 127 1905 2012 1905 1904 lowest 9 36.4 40.2 -3.8 1 127 1905 2012 1905 1904 lowest 10 39.3 42.9 -3.6 1 127 1905 2012 1905 1904 lowest 11 42.0 45.3 -3.3 1 127 1905 2012 1905 1904 lowest 12 43.7 46.9 -3.2 2 126 1904 2012 1904 1903 bottom-tenth 18 39.6 43.1 -3.5 1 126 1905 2017 1905 1904 lowest 24 43.6 46.9 -3.3 1 126 1905 2013 1905 1904 lowest 36 44.6 46.9 -2.3 2 124 1906 2022 1905 1904 bottom-tenth 48 45.2 46.9 -1.7 3 122 1907 2022 1905 1904 bottom-tenth 1908 60 45.5 46.9 -1.4 5 119 1908 2020,2022 1905 1904 bottom-tenth 1918