California River Basin, Average Temperature Rankings, January 1917 1901-2000 Degrees Fahrenheit 1 36.7 42.3 -5.6 3 127 1937 2014 1917 1916 bottom-tenth 2 38.0 42.7 -4.7 3 126 1949 2018 1917 1916 bottom-tenth 3 40.6 45.0 -4.4 2 127 1949 2018 1917 1916 bottom-tenth 4 43.9 48.6 -4.7 1 128 1917 2015 1917 1916 lowest 5 48.5 52.6 -4.1 1 128 1917 2015 1917 1916 lowest 6 52.4 56.1 -3.7 1 128 1917 2021 1917 1916 lowest 7 55.3 58.8 -3.5 1 128 1917 2015,2018 1917 1916 lowest 8 56.7 60.0 -3.3 1 128 1917 2018 1917 1916 lowest 9 56.8 60.0 -3.2 1 128 1917 2015 1917 1916 lowest 10 56.7 59.4 -2.7 1 128 1917 2015 1917 1916 lowest 11 56.2 58.5 -2.3 3 126 1949 2015 1913 1916 bottom-tenth 12 55.5 57.4 -1.9 4 125 1949 2015 1913 1916 bottom-tenth 18 55.4 56.9 -1.5 3 125 1913 2016,2022 1913 1916 bottom-tenth 24 56.0 57.4 -1.4 3 125 1913 2016 1914 1916 bottom-tenth 1910,1914 36 56.4 57.4 -1.0 4 123 1914 2016,2017 1915 1916 bottom-tenth 1912,1915,1918,1921,1922,1923,1949,1950 48 56.5 57.4 -0.9 10 116 1913 2018 1916 1911 bottom-tenth 1919,1920,1922,1949 60 56.2 57.3 -1.1 2 123 1913 2018,2019 1916 1916 bottom-tenth 1914,1916