1901-2000 Degrees Fahrenheit 1 51.1 52.9 -1.8 15 114 1945 2022 1908 1916 bottom-third 1919,1995 2 45.4 48.5 -3.1 4 125 1907 2018 1907 1916 bottom-tenth 3 41.3 44.2 -2.9 4 125 1983 2018 1917 1916 bottom-tenth 4 37.0 40.2 -3.2 1 128 1917 2020 1917 1916 lowest 5 34.1 36.9 -2.8 2 127 1964 2017 1917 1916 bottom-tenth 6 31.8 34.0 -2.2 3 126 1964 2017 1917 1916 bottom-tenth 1975 7 29.8 32.1 -2.3 4 124 1964 2017 1913 1916 bottom-tenth 8 29.2 31.5 -2.3 4 124 1964 2017 1913 1916 bottom-tenth 9 30.3 32.3 -2.0 4 124 1933 2017 1913 1916 bottom-tenth 1912,1944,1977 10 32.1 34.1 -2.0 3 125 1913 2017 1913 1916 bottom-tenth 11 34.4 36.1 -1.7 4 124 1913 2017 1913 1916 bottom-tenth 12 36.4 38.0 -1.6 4 124 1913 2017 1913 1916 bottom-tenth 18 36.2 36.7 -0.5 28 100 1913 2018 1913 1916 bottom-third 1899,1904,1931,1967 24 37.4 38.0 -0.6 15 112 1913 2018 1914 1916 bottom-third 1946,1950,1964,1971,1972 36 37.5 38.0 -0.5 18 108 1977 2018 1915 1916 bottom-third 1944,1945,1949,1965,1978 48 37.7 38.0 -0.3 31 94 1977 2018 1916 1914 bottom-third 1920,1954,1969,1970 60 37.3 38.0 -0.7 4 120 1977 2019,2020 1917 1916 bottom-tenth 1933,1948,1964,1978