California, Average Temperature Rankings, October 2015 1901-2000 Degrees Fahrenheit 1 65.0 59.5 5.5 126 3 1916 2020 2014 2003 top-tenth 2 68.6 64.0 4.6 125 4 1916,1920 2020 2014 2003 top-tenth 3 71.2 67.2 4.0 126 3 1900,1912 2020 2014 2015 top-tenth 4 72.2 69.1 3.1 124 5 1912 2020 2013 2014 top-tenth 5 72.6 69.0 3.6 126 3 1912 2020 2014 2003 top-tenth 2003 6 70.6 67.6 3.0 121 8 1916 2020 2013 2014 top-tenth 7 68.6 65.6 3.0 124 5 1912 2020 2013 2014 top-tenth 2017 8 67.2 63.5 3.7 128 1 1912 2014,2015 2014 2014 highest 2014 9 65.6 61.5 4.1 128 1 1912 2015 2014 2015 highest 10 63.9 59.6 4.3 128 1 1911,1912 2015 2014 2015 highest 11 62.4 58.1 4.3 127 1 1912 2015 2014 2015 highest 12 61.6 57.4 4.2 127 1 1912 2015 2014 2015 highest 18 64.8 60.8 4.0 127 1 1912 2015 2014 2015 highest 24 61.4 57.4 4.0 126 1 1912,1949 2015 2014 2015 highest 36 60.7 57.4 3.3 124 2 1913 2016 2014 2015 top-tenth 48 60.3 57.4 2.9 121 4 1912,1913 2017 2014 2015 top-tenth 60 59.8 57.4 2.4 117 7 1913 2018 2014 2015 top-tenth 2020