1901-2000 Degrees Fahrenheit 1 35.0 34.3 0.7 69 60 1909 2021 2013 2019 normal 1901,2007 2 41.3 38.2 3.1 116 13 1911 2021 2019 2017 top-tenth 1998,2012 3 46.4 43.5 2.9 119 10 1911 2017,2021 2019 2017 top-tenth 2010 4 51.0 48.8 2.2 113 16 1912 2021 2019 2017 top-third 1954,2001,2014 5 56.1 53.2 2.9 126 3 1912 2021 2019 2017 top-tenth 6 59.5 56.4 3.1 127 2 1912 2021 2019 2017 top-tenth 2016,2017 7 61.3 58.2 3.1 125 4 1912 2021 2019 2017 top-tenth 8 61.8 58.5 3.3 127 2 1912 2021 2019 2020 top-tenth 9 60.9 57.7 3.2 128 1 1912 2020,2021 2019 2020 highest 2021 10 59.7 56.3 3.4 128 1 1912 2020 2019 2020 highest 11 57.7 54.6 3.1 127 2 1912 2017 2019 2017 top-tenth 12 56.0 52.9 3.1 127 2 1912 2017 2019 2017 top-tenth 2012 18 56.9 54.0 2.9 126 2 1913 2017 2019 2017 top-tenth 24 55.2 52.8 2.4 123 5 1913 2017 2019 2018 top-tenth 2016 36 55.3 52.8 2.5 122 5 1914 2018 2016 2019 top-tenth 2021 48 55.6 52.8 2.8 125 1 1915 2018,2020 2019 2018 highest 2018 60 55.6 52.8 2.8 124 1 1915,1916 2020,2021 2019 2020 highest 2021