1991-2020 Degrees Fahrenheit 1 36.5 36.5 0.0 39 24 1979 2017 1983 1984 normal 1971 2 32.6 35.3 -2.7 24 39 1978 2023 1982 1984 normal 3 36.4 36.1 0.3 41 22 1978 2023 1984 1983 normal 1995 4 38.1 38.6 -0.5 33 27 1977 2023 1984 1983 normal 2019 5 43.0 42.2 0.8 44 16 1977 2017 1984 1976 top-third 1976 6 46.7 46.6 0.1 40 20 1977 2017 1984 1974 top-third 1974 7 50.7 50.8 -0.1 37 23 1977 2017 1984 1976 normal 8 53.6 54.1 -0.5 36 24 1977 2017 1984 1976 normal 2011 9 55.7 56.2 -0.5 35 25 1977 2017 1984 1976 normal 10 56.3 56.9 -0.6 34 26 1977 2017 1984 1976 normal 1986,2010 11 55.9 56.8 -0.9 32 28 1977 2017 1984 1976 normal 1997,2003 12 54.4 55.7 -1.3 19 41 1977 2017 1984 1983 bottom-third 1975,1997 18 51.1 52.7 -1.6 14 44 1978 2017 1983 1984 bottom-third 1965,1981,1997,2004 24 54.3 55.7 -1.4 17 41 1978 2023 1983 1984 bottom-third 1966,1974 36 54.4 55.7 -1.3 17 39 1979 2022,2023 1984 1976 bottom-third 1974,1975,1995 48 54.0 55.7 -1.7 13 41 1980 2023 1984 1977 bottom-third 1967 60 54.0 55.6 -1.6 12 40 1981 2023 1984 1978 bottom-third 1973,1977