California River Basin April 1990 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
58.4
54.0
4.4
124
6
1967
1989
1988
1989
top-tenth
2
54.9
51.4
3.5
119
11
1967
1934
1988
1989
top-tenth
1992,1997
3
50.8
49.4
1.4
95
35
1922
2015
1985
1989
top-third
1905,1994
4
48.9
47.6
1.3
93
37
1922
2015
1989
1988
top-third
1947,1987,2009
5
48.1
46.7
1.4
99
30
1917,1949
2015
1989
1986
top-third
1931,2012
6
48.7
47.2
1.5
103
26
1917
2015
1989
1986
top-third
7
50.1
48.9
1.2
95
34
1917
2015
1987
1989
top-third
1905,1968,1987
8
52.4
51.4
1.0
93
36
1917
2015
1987
1989
top-third
1914,1943
9
54.6
53.9
0.7
90
39
1917
2015
1987
1989
top-third
1954,1970,1986
10
56.7
56.0
0.7
87
42
1917
2015
1988
1989
top-third
1905,1938,1970,1988,1993
11
57.8
57.1
0.7
89
40
1917
2015
1987
1989
top-third
1905,1938,1941,1984,1993,2008,2010
12
58.1
57.4
0.7
85
44
1917
2015
1987
1989
normal
1970,1984,2006
18
54.7
54.0
0.7
87
41
1949
2015
1986
1989
top-third
1985,1991,2006
24
58.3
57.4
0.9
97
31
1913
2015
1988
1989
top-third
1940,1961,1982,1987,1988,1992,1994
36
58.4
57.4
1.0
101
26
1913,1917
2016
1989
1982
top-third
1982,1993,2013
48
58.3
57.4
0.9
97
29
1913
2016,2018
1988
1989
top-third
1941,1961,1992,1993,1994,2000,2002
60
58.3
57.3
1.0
98
27
1913
2018
1989
1989
top-third
1989,1994,1999,2012