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 1974

View Period (Months):
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  • Record Driest
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  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
January 1974
1-Month
6.68"
(169.67mm)
4.53"
(115.06mm)
2.15"
(54.61mm)
114th Driest
Driest since:
1985
15th Wettest
Wettest since:
1953
Dec 1973–Jan 1974
2-Month
13.49"
(342.65mm)
9.17"
(232.92mm)
4.32"
(109.73mm)
120th Driest
Driest since:
1977
8th Wettest
Wettest since:
1965
Nov 1973–Jan 1974
3-Month
22.46"
(570.48mm)
13.53"
(343.66mm)
8.93"
(226.82mm)
127th Driest
Driest since:
1977
1st Wettest
Wettest to Date
1974
Oct 1973–Jan 1974
4-Month
25.02"
(635.51mm)
16.08"
(408.43mm)
8.94"
(227.08mm)
125th Driest
Driest since:
1977
3rd Wettest
Wettest since:
1997
Sep 1973–Jan 1974
5-Month
27.24"
(691.90mm)
17.50"
(444.50mm)
9.74"
(247.40mm)
127th Driest
Driest since:
1977
1st Wettest
Wettest to Date
1974
Aug 1973–Jan 1974
6-Month
27.66"
(702.56mm)
18.31"
(465.07mm)
9.35"
(237.49mm)
127th Driest
Driest since:
1977
1st Wettest
Wettest to Date
1974
Jul 1973–Jan 1974
7-Month
28.08"
(713.23mm)
19.04"
(483.62mm)
9.04"
(229.61mm)
126th Driest
Driest since:
1977
2nd Wettest
Wettest since:
1956
Jun 1973–Jan 1974
8-Month
29.38"
(746.25mm)
20.76"
(527.30mm)
8.62"
(218.95mm)
126th Driest
Driest since:
1977
2nd Wettest
Wettest since:
1956
May 1973–Jan 1974
9-Month
30.96"
(786.38mm)
22.91"
(581.91mm)
8.05"
(204.47mm)
125th Driest
Driest since:
1977
3rd Wettest
Wettest since:
1997
Apr 1973–Jan 1974
10-Month
32.27"
(819.66mm)
25.27"
(641.86mm)
7.00"
(177.80mm)
121st Driest
Driest since:
1977
7th Wettest
Wettest since:
1997
Mar 1973–Jan 1974
11-Month
34.70"
(881.38mm)
28.53"
(724.66mm)
6.17"
(156.72mm)
118th Driest
Driest since:
1977
10th Wettest
Wettest since:
1997
Feb 1973–Jan 1974
12-Month
36.18"
(918.97mm)
32.13"
(816.10mm)
4.05"
(102.87mm)
106th Driest
Driest since:
1977
22nd Wettest
Wettest since:
1997
Aug 1972–Jan 1974
18-Month
52.76"
(1,340.10mm)
50.47"
(1,281.94mm)
2.29"
(58.16mm)
85th Driest
Driest since:
1930
42nd Wettest
Wettest since:
1997
Feb 1972–Jan 1974
24-Month
68.97"
(1,751.84mm)
64.28"
(1,632.71mm)
4.69"
(119.13mm)
102nd Driest
Driest since:
1931
25th Wettest
Wettest since:
1997
Feb 1971–Jan 1974
36-Month
106.08"
(2,694.43mm)
96.31"
(2,446.27mm)
9.77"
(248.16mm)
117th Driest
Driest since:
1931
9th Wettest
Wettest since:
1998
Feb 1970–Jan 1974
48-Month
140.50"
(3,568.70mm)
128.35"
(3,260.09mm)
12.15"
(308.61mm)
115th Driest
Driest since:
1932
10th Wettest
Wettest since:
1999
Feb 1969–Jan 1974
60-Month
171.75"
(4,362.45mm)
160.30"
(4,071.62mm)
11.45"
(290.83mm)
110th Driest
Driest since:
1933
14th Wettest
Wettest since:
2000

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