1901-2000 Degrees Fahrenheit 1 41.3 43.3 -2.0 42 88 1958 1927,2018 1973 1976 bottom-third 1969,1971 2 34.5 41.9 -7.4 5 125 1978 1950 1958 1976 bottom-tenth 3 35.9 42.0 -6.1 2 127 1978 1932 1977 1976 bottom-tenth 4 37.4 44.0 -6.6 1 128 1977 1932 1977 1976 lowest 5 40.9 47.4 -6.5 1 128 1977 1932 1977 1976 lowest 6 45.6 51.6 -6.0 1 128 1977 1932 1977 1976 lowest 7 49.7 55.3 -5.6 1 128 1977 1932 1977 1976 lowest 8 53.1 58.3 -5.2 1 128 1977 1932 1977 1976 lowest 9 55.2 60.2 -5.0 1 128 1977 1932 1977 1976 lowest 10 56.0 61.0 -5.0 1 128 1977 1932 1977 1976 lowest 11 56.2 60.9 -4.7 1 128 1977 1932,2017 1977 1976 lowest 12 56.2 60.1 -3.9 1 128 1977 2017 1977 1976 lowest 18 54.6 57.2 -2.6 1 127 1977,1978 2017 1977 1976 lowest 1978 24 57.8 60.1 -2.3 2 126 1978 2017 1977 1976 bottom-tenth 36 58.5 60.1 -1.6 4 123 1979 2018 1970 1976 bottom-tenth 48 59.3 60.1 -0.8 15 111 1980 2019,2020 1972 1976 bottom-third 1918,1965,1968,1972,1984 60 59.2 60.1 -0.9 11 114 1980,1981 2020 1972 1976 bottom-tenth 1969,1978,1982,1984