West Climate Region, Precipitation Rankings, May 1931
1901-2000
Inches
1
0.73
0.92
-0.19
59
70
1924
1998
1929
1930
normal
1902,1967,2008
2
1.83
2.26
-0.43
52
77
1909
1896
1929
1930
normal
3
2.85
4.59
-1.74
22
107
2008
1995
1924
1930
bottom-third
4
4.67
7.31
-2.64
22
107
1997
1998
1929
1930
bottom-third
5
6.96
10.29
-3.33
25
104
2022
1998
1929
1930
bottom-third
6
7.32
12.84
-5.52
7
121
1924
1995
1924
1930
bottom-tenth
7
8.97
14.71
-5.74
7
121
1977
1995
1924
1930
bottom-tenth
8
9.55
15.74
-6.19
5
123
1977
1983
1924
1930
bottom-tenth
9
10.22
16.23
-6.01
6
122
2021
1983
1924
1930
bottom-tenth
10
10.71
16.62
-5.91
7
121
2021
1983
1929
1930
bottom-tenth
11
10.84
16.95
-6.11
6
122
2021
1983
1929
1930
bottom-tenth
12
10.96
17.44
-6.48
6
122
2021
1983
1929
1930
bottom-tenth
18
24.01
30.25
-6.24
23
104
1977
1983
1930
1928
bottom-third
24
26.04
34.89
-8.85
12
115
2022
1983
1930
1928
bottom-tenth
36
36.80
52.30
-15.50
3
123
2022
1984
1931
1930
bottom-tenth
48
52.04
69.56
-17.52
2
123
2015
1998
1931
1930
bottom-tenth
60
71.84
86.83
-14.99
8
116
1933
1999
1931
1930
bottom-tenth