California River Basin, Average Temperature Rankings, March 2017 1901-2000 Degrees Fahrenheit 1 53.3 48.8 4.5 119 11 1897 1934 2016 2015 top-tenth 2 50.3 47.1 3.2 118 12 1903 2015 2013 2016 top-tenth 1968 3 47.6 45.5 2.1 109 21 1949 2015 2013 2016 top-third 1926,1941,1988 4 46.6 44.9 1.7 99 30 1949 2015 2013 2016 top-third 2007 5 47.8 45.8 2.0 113 16 1949 2015 2016 2015 top-third 1900 6 49.9 48.1 1.8 111 18 1917 2015 2013 2016 top-third 1930,1984,1986,2009 7 52.7 51.0 1.7 107 22 1917 2015 2012 2016 top-third 8 55.6 53.8 1.8 109 20 1917 2015 2012 2016 top-third 1981 9 58.0 56.2 1.8 113 16 1917 2015 2012 2016 top-third 1940,1968,1978,2000 10 59.5 57.4 2.1 118 11 1917 2015 2013 2016 top-tenth 1997,2009 11 59.8 57.7 2.1 121 8 1917 2015 2013 2016 top-tenth 1959,1997,2002,2003,2013 12 59.6 57.4 2.2 122 7 1917 2015 2013 2016 top-tenth 18 56.6 54.3 2.3 119 9 1949 2015 2013 2016 top-tenth 24 59.8 57.4 2.4 121 7 1913 2015 2013 2016 top-tenth 36 60.5 57.4 3.1 124 3 1913,1917 2016 2014 2016 top-tenth 48 60.4 57.4 3.0 124 2 1913 2018 2016 2016 top-tenth 2016 60 60.3 57.3 3.0 123 2 1913,1917 2018 2016 2017 top-tenth 2019