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 1984

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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 1984
1-Month
2.95"
(74.93mm)
4.53"
(115.06mm)
-1.58"
(-40.13mm)
24th Driest
Driest since:
1985
105th Wettest
Wettest since:
1953
Dec 1983–Jan 1984
2-Month
8.65"
(219.71mm)
9.17"
(232.92mm)
-0.52"
(-13.21mm)
57th Driest
Driest since:
1977
71st Wettest
Wettest since:
1965
Ties: 1993
Nov 1983–Jan 1984
3-Month
16.20"
(411.48mm)
13.53"
(343.66mm)
2.67"
(67.82mm)
104th Driest
Driest since:
1977
24th Wettest
Wettest since:
1974
Oct 1983–Jan 1984
4-Month
17.80"
(452.12mm)
16.08"
(408.43mm)
1.72"
(43.69mm)
86th Driest
Driest since:
1977
42nd Wettest
Wettest since:
1997
Ties: 1898
Sep 1983–Jan 1984
5-Month
19.15"
(486.41mm)
17.50"
(444.50mm)
1.65"
(41.91mm)
86th Driest
Driest since:
1977
42nd Wettest
Wettest since:
1974
Aug 1983–Jan 1984
6-Month
20.88"
(530.35mm)
18.31"
(465.07mm)
2.57"
(65.28mm)
96th Driest
Driest since:
1977
32nd Wettest
Wettest since:
1974
Jul 1983–Jan 1984
7-Month
23.11"
(586.99mm)
19.04"
(483.62mm)
4.07"
(103.37mm)
113th Driest
Driest since:
1977
15th Wettest
Wettest since:
1956
Jun 1983–Jan 1984
8-Month
25.19"
(639.83mm)
20.76"
(527.30mm)
4.43"
(112.53mm)
115th Driest
Driest since:
1977
13th Wettest
Wettest since:
1956
May 1983–Jan 1984
9-Month
27.15"
(689.61mm)
22.91"
(581.91mm)
4.24"
(107.70mm)
111th Driest
Driest since:
1977
17th Wettest
Wettest since:
1997
Apr 1983–Jan 1984
10-Month
29.29"
(743.97mm)
25.27"
(641.86mm)
4.02"
(102.11mm)
107th Driest
Driest since:
1977
21st Wettest
Wettest since:
1997
Mar 1983–Jan 1984
11-Month
35.00"
(889.00mm)
28.53"
(724.66mm)
6.47"
(164.34mm)
121st Driest
Driest since:
1977
7th Wettest
Wettest since:
1997
Feb 1983–Jan 1984
12-Month
40.26"
(1,022.60mm)
32.13"
(816.10mm)
8.13"
(206.50mm)
124th Driest
Driest since:
1977
4th Wettest
Wettest since:
1997
Aug 1982–Jan 1984
18-Month
61.57"
(1,563.88mm)
50.47"
(1,281.94mm)
11.10"
(281.94mm)
124th Driest
Driest since:
1930
3rd Wettest
Wettest to Date
1997
Feb 1982–Jan 1984
24-Month
77.85"
(1,977.39mm)
64.28"
(1,632.71mm)
13.57"
(344.68mm)
124th Driest
Driest since:
1931
3rd Wettest
Wettest to Date
1997
Feb 1981–Jan 1984
36-Month
116.87"
(2,968.50mm)
96.31"
(2,446.27mm)
20.56"
(522.23mm)
122nd Driest
Driest since:
1931
4th Wettest
Wettest to Date
1998
Feb 1980–Jan 1984
48-Month
148.53"
(3,772.66mm)
128.35"
(3,260.09mm)
20.18"
(512.57mm)
120th Driest
Driest since:
1932
5th Wettest
Wettest to Date
1999
Feb 1979–Jan 1984
60-Month
180.67"
(4,589.02mm)
160.30"
(4,071.62mm)
20.37"
(517.40mm)
119th Driest
Driest since:
1933
5th Wettest
Wettest to Date
2000

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