1991-2020 Degrees Fahrenheit 1 55.7 59.1 -3.4 43 86 1917 2015 1915 1914 bottom-third 2 49.5 53.3 -3.8 24 105 1907 1991 1909 1915 bottom-third 1950 3 40.8 47.3 -6.5 3 126 1926 2012 1916 1915 bottom-tenth 1917,1967 4 35.1 42.0 -6.9 5 124 1926 2012 1907 1915 bottom-tenth 1967 5 33.4 38.4 -5.0 15 114 1904 2012 1914 1915 bottom-third 1895 6 32.1 37.0 -4.9 19 108 1904 2012 1914 1915 bottom-third 7 33.0 37.4 -4.4 15 110 1904 2012 1912 1915 bottom-third 1935,1961 8 35.2 39.1 -3.9 19 106 1905 2012 1912 1915 bottom-third 9 38.4 41.8 -3.4 28 97 1905 2012 1914 1915 bottom-third 1924,1970,1977 10 41.1 44.7 -3.6 21 104 1904 2012 1912 1915 bottom-third 11 43.6 47.2 -3.6 16 109 1904 2012 1912 1915 bottom-third 1924,1941 12 45.3 48.9 -3.6 17 108 1904 2012 1912 1915 bottom-third 18 41.6 44.9 -3.3 21 102 1905 2017 1915 1914 bottom-third 1919,1920,1957,1971 24 45.8 48.9 -3.1 22 99 1905 2013 1912 1915 bottom-third 36 45.7 48.8 -3.1 16 101 1906 2012,2013 1912 1915 bottom-third 1935 48 46.2 48.8 -2.6 29 85 1906 2013 1915 1903 bottom-third 60 45.9 48.7 -2.8 15 96 1906,1920,1927 2020 1912 1915 bottom-third 1904,1917,1924