1991-2020 Degrees Fahrenheit 1 61.7 67.0 -5.3 27 95 1958 2018 1902 1906 bottom-third 2 63.2 65.7 -2.5 48 69 1958 2023 1906 1903 normal 1934,1944,2009 3 62.6 66.2 -3.6 29 84 1958 2017 1905 1906 bottom-third 1911,1953 4 64.1 67.5 -3.4 30 81 1958 2023 1904 1906 bottom-third 5 66.1 69.5 -3.4 26 85 1958 2017 1904 1906 bottom-third 1954 6 68.5 71.6 -3.1 29 81 1958 2017,2020 1904 1906 bottom-third 1919,1953,1960,1961 7 70.0 73.2 -3.2 22 88 1958 2017 1904 1906 bottom-third 8 71.2 74.4 -3.2 20 90 1958 2017 1904 1906 bottom-third 1941 9 72.1 75.3 -3.2 19 91 1958 2017 1904 1906 bottom-third 1926,1966 10 72.5 75.6 -3.1 20 90 1904 2017,2020,2023 1904 1906 bottom-third 1936,1963 11 72.5 75.5 -3.0 21 88 1904 2023 1904 1906 bottom-third 1936,1944 12 71.8 75.0 -3.2 15 94 1904 2023 1904 1906 bottom-third 1914,1921,1961,1964,1970,1978 18 70.9 73.8 -2.9 19 79 1911 2021 1904 1907 bottom-third 1908,1926,1945,1967 24 72.4 74.9 -2.5 26 71 1911 2017 1904 1907 bottom-third 1909,1920,1921,1924,1960,1962,1977 36 -99 74.8 -99 -99 -99 1911,1941 2023 normal 48 -99 74.8 -99 -99 -99 1911 2023 normal 60 -99 74.8 -99 -99 -99 1911 2023 normal