1991-2020 Degrees Fahrenheit 1 75.3 76.4 -1.1 13 61 1987 1984 1983 1984 bottom-third 2006 2 74.4 75.5 -1.1 13 61 1987 1984 1966 1984 bottom-third 1957 3 74.2 74.6 -0.4 23 51 2009 1984 1975 1984 bottom-third 1960,1972,1996 4 74.0 74.0 0.0 41 33 2009 1984 1983 1984 normal 1953,1973,2000,2019 5 73.4 73.7 -0.3 27 46 2009 1984 1983 1984 normal 1968,1973,1983,2000,2002 6 73.6 73.7 -0.1 37 36 2009 1984 1983 1984 normal 1975,1996,2002,2003 7 74.2 74.1 0.1 45 28 2009 1984 1983 1984 normal 1971,1977,2005 8 74.8 74.7 0.1 49 24 2009 1984 1983 1984 top-third 1976,1979,1996,2005,2012 9 75.5 75.3 0.2 54 19 2009 2020 1983 1984 top-third 1979,2005,2007,2022 10 76.0 75.8 0.2 52 21 1956,2009 2020 1983 1984 top-third 1979 11 76.4 76.1 0.3 55 18 1956 2020 1983 1984 top-third 1961,1967,2006 12 76.7 76.3 0.4 60 13 1956 2020 1983 1984 top-third 1964,1967,1995,2005,2006 18 76.3 75.4 0.9 70 2 1956 2020 1984 1985 top-tenth 2016,2021 24 76.8 76.3 0.5 66 6 1956,1957 2021 1984 1981 top-tenth 1981,2005,2018 36 76.5 76.3 0.2 56 15 1956 2022 1984 1982 top-third 1969 48 76.5 76.3 0.2 57 13 1956,1957 2020,2021,2022 1983 1984 top-third 1983,2004,2016 60 76.6 76.2 0.4 62 7 1956,1957,1958 2020 1984 1984 top-tenth 1984,2017