Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Northwest Climate Region

Precipitation Rankings, January 1961

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
January 1961
1-Month
3.31"
(84.07mm)
4.53"
(115.06mm)
-1.22"
(-30.99mm)
33rd Driest
Driest since:
1985
96th Wettest
Wettest since:
1953
Dec 1960–Jan 1961
2-Month
5.67"
(144.02mm)
9.17"
(232.92mm)
-3.50"
(-88.90mm)
10th Driest
Driest since:
1977
118th Wettest
Wettest since:
1965
Nov 1960–Jan 1961
3-Month
12.18"
(309.37mm)
13.53"
(343.66mm)
-1.35"
(-34.29mm)
43rd Driest
Driest since:
1977
85th Wettest
Wettest since:
1974
Ties: 1988
Oct 1960–Jan 1961
4-Month
14.50"
(368.30mm)
16.08"
(408.43mm)
-1.58"
(-40.13mm)
44th Driest
Driest since:
1977
84th Wettest
Wettest since:
1997
Sep 1960–Jan 1961
5-Month
15.27"
(387.86mm)
17.50"
(444.50mm)
-2.23"
(-56.64mm)
34th Driest
Driest since:
1977
94th Wettest
Wettest since:
1974
Aug 1960–Jan 1961
6-Month
16.66"
(423.16mm)
18.31"
(465.07mm)
-1.65"
(-41.91mm)
43rd Driest
Driest since:
1977
85th Wettest
Wettest since:
1974
Jul 1960–Jan 1961
7-Month
16.89"
(429.01mm)
19.04"
(483.62mm)
-2.15"
(-54.61mm)
38th Driest
Driest since:
1977
90th Wettest
Wettest since:
1956
Jun 1960–Jan 1961
8-Month
17.46"
(443.48mm)
20.76"
(527.30mm)
-3.30"
(-83.82mm)
26th Driest
Driest since:
1977
102nd Wettest
Wettest since:
1956
May 1960–Jan 1961
9-Month
20.83"
(529.08mm)
22.91"
(581.91mm)
-2.08"
(-52.83mm)
40th Driest
Driest since:
1977
88th Wettest
Wettest since:
1997
Apr 1960–Jan 1961
10-Month
23.56"
(598.42mm)
25.27"
(641.86mm)
-1.71"
(-43.44mm)
45th Driest
Driest since:
1977
83rd Wettest
Wettest since:
1997
Ties: 1973
Mar 1960–Jan 1961
11-Month
28.01"
(711.45mm)
28.53"
(724.66mm)
-0.52"
(-13.21mm)
60th Driest
Driest since:
1977
68th Wettest
Wettest since:
1997
Ties: 1975, 1989
Feb 1960–Jan 1961
12-Month
32.23"
(818.64mm)
32.13"
(816.10mm)
0.10"
(2.54mm)
68th Driest
Driest since:
1977
60th Wettest
Wettest since:
1997
Aug 1959–Jan 1961
18-Month
48.27"
(1,226.06mm)
50.47"
(1,281.94mm)
-2.20"
(-55.88mm)
50th Driest
Driest since:
1930
77th Wettest
Wettest since:
1997
Feb 1959–Jan 1961
24-Month
60.49"
(1,536.45mm)
64.28"
(1,632.71mm)
-3.79"
(-96.26mm)
38th Driest
Driest since:
1931
89th Wettest
Wettest since:
1997
Feb 1958–Jan 1961
36-Month
96.05"
(2,439.67mm)
96.31"
(2,446.27mm)
-0.26"
(-6.60mm)
64th Driest
Driest since:
1931
62nd Wettest
Wettest since:
1998
Feb 1957–Jan 1961
48-Month
131.19"
(3,332.23mm)
128.35"
(3,260.09mm)
2.84"
(72.14mm)
83rd Driest
Driest since:
1932
42nd Wettest
Wettest since:
1999
Ties: 1911
Feb 1956–Jan 1961
60-Month
159.63"
(4,054.60mm)
160.30"
(4,071.62mm)
-0.67"
(-17.02mm)
57th Driest
Driest since:
1933
67th Wettest
Wettest since:
2000

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