1901-2000 Degrees Fahrenheit 1 50.6 52.2 -1.6 32 97 1917 1911,2015 1920 1922 bottom-third 1928,2019 2 44.3 46.3 -2.0 13 116 1917 2010 1920 1922 bottom-tenth 1939 3 36.5 40.4 -3.9 4 125 1926 2010 1917 1922 bottom-tenth 1917 4 29.8 34.8 -5.0 1 128 1923 2010 1923 1922 lowest 5 26.3 31.2 -4.9 1 128 1923 2010 1923 1922 lowest 6 24.8 29.6 -4.8 1 127 1907,1923 2012 1907 1922 lowest 1907 7 26.1 30.2 -4.1 3 125 1905 2012 1907 1922 bottom-tenth 8 28.5 32.2 -3.7 4 124 1905 2012 1918 1922 bottom-tenth 9 31.7 34.9 -3.2 5 123 1905 2012 1918 1922 bottom-tenth 10 34.9 37.9 -3.0 4 124 1905 2012 1918 1922 bottom-tenth 1926 11 37.7 40.5 -2.8 4 124 1905 2012 1918 1922 bottom-tenth 1918 12 39.8 42.2 -2.4 6 122 1905 2012 1918 1922 bottom-tenth 18 36.2 38.0 -1.8 9 118 1905 2013 1918 1922 bottom-tenth 1907 24 40.9 42.2 -1.3 12 115 1905 2013 1919 1922 bottom-tenth 1919 36 41.9 42.2 -0.3 32 94 1906 2012 1920 1922 bottom-third 1910,1915,1930,1937,1968,1979 48 41.5 42.2 -0.7 19 106 1907 2013 1921 1922 bottom-third 1899,1900,1921 60 41.7 42.1 -0.4 27 97 1908 2013 1922 1914 bottom-third 1914,1938