Northwest December 1999 Precipitation Rankings
1901-2000
Inches
1
4.16
4.63
-0.47
53
77
1976
1964
1997
1998
normal
2
8.89
8.97
-0.08
66
64
1976
1996
1997
1998
normal
3
11.05
11.51
-0.46
54
76
1976
1996
1997
1998
normal
4
11.24
12.93
-1.69
38
92
1976
1996
1993
1998
bottom-third
5
12.39
13.73
-1.34
45
85
1936
1996
1993
1998
normal
6
12.82
14.46
-1.64
42
88
1936
1996
1993
1998
bottom-third
7
14.28
16.18
-1.90
41
89
1976
1996
1993
1998
bottom-third
8
16.49
18.32
-1.83
43
87
1935
1996
1993
1998
bottom-third
9
17.98
20.67
-2.69
29
101
1976
1996
1989
1998
bottom-third
10
20.99
23.93
-2.94
30
100
1976
1996
1987
1998
bottom-third
11
28.15
27.54
0.61
70
60
1935
1996
1994
1998
normal
12
33.40
32.07
1.33
82
48
1929
1996
1994
1998
normal
18
51.10
46.58
4.52
103
26
1929
1996
1994
1998
top-third
24
73.16
64.19
8.97
119
10
1930
1996
1995
1998
top-tenth
36
108.31
96.33
11.98
120
8
1930
1997
1995
1998
top-tenth
48
153.18
128.33
24.85
125
2
1931
1998
1997
1998
top-tenth
60
193.76
160.34
33.42
125
1
1932
1999
1998
1999
highest