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, February 1998

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
February 1998
1-Month
3.80"
(96.52mm)
3.61"
(91.69mm)
0.19"
(4.83mm)
77th Driest
Driest since:
1920
52nd Wettest
Wettest since:
1904
Jan–Feb 1998
2-Month
10.16"
(258.06mm)
8.14"
(206.76mm)
2.02"
(51.30mm)
105th Driest
Driest since:
1977
24th Wettest
Wettest since:
1953
Dec 1997–Feb 1998
3-Month
12.85"
(326.39mm)
12.78"
(324.61mm)
0.07"
(1.78mm)
66th Driest
Driest since:
1977
62nd Wettest
Wettest since:
1965
Nov 1997–Feb 1998
4-Month
15.82"
(401.83mm)
17.14"
(435.36mm)
-1.32"
(-33.53mm)
49th Driest
Driest since:
1977
79th Wettest
Wettest since:
1974
Oct 1997–Feb 1998
5-Month
19.90"
(505.46mm)
19.69"
(500.13mm)
0.21"
(5.33mm)
66th Driest
Driest since:
1977
62nd Wettest
Wettest since:
1956
Sep 1997–Feb 1998
6-Month
22.34"
(567.44mm)
21.11"
(536.19mm)
1.23"
(31.25mm)
82nd Driest
Driest since:
1977
46th Wettest
Wettest since:
1974
Aug 1997–Feb 1998
7-Month
23.31"
(592.07mm)
21.92"
(556.77mm)
1.39"
(35.30mm)
87th Driest
Driest since:
1977
41st Wettest
Wettest since:
1974
Ties: 1995
Jul 1997–Feb 1998
8-Month
24.78"
(629.41mm)
22.65"
(575.31mm)
2.13"
(54.10mm)
96th Driest
Driest since:
1977
32nd Wettest
Wettest since:
1956
Jun 1997–Feb 1998
9-Month
27.02"
(686.31mm)
24.37"
(619.00mm)
2.65"
(67.31mm)
96th Driest
Driest since:
1977
32nd Wettest
Wettest since:
1996
May 1997–Feb 1998
10-Month
28.98"
(736.09mm)
26.52"
(673.61mm)
2.46"
(62.48mm)
94th Driest
Driest since:
1977
34th Wettest
Wettest since:
1999
Apr 1997–Feb 1998
11-Month
32.27"
(819.66mm)
28.88"
(733.55mm)
3.39"
(86.11mm)
100th Driest
Driest since:
1977
28th Wettest
Wettest since:
1997
Mar 1997–Feb 1998
12-Month
36.99"
(939.55mm)
32.14"
(816.36mm)
4.85"
(123.19mm)
109th Driest
Driest since:
1977
19th Wettest
Wettest since:
1996
Sep 1996–Feb 1998
18-Month
66.45"
(1,687.83mm)
53.27"
(1,353.06mm)
13.18"
(334.77mm)
124th Driest
Driest since:
1931
3rd Wettest
Wettest since:
1997
Mar 1996–Feb 1998
24-Month
78.48"
(1,993.39mm)
64.31"
(1,633.47mm)
14.17"
(359.92mm)
124th Driest
Driest since:
1931
3rd Wettest
Wettest since:
1997
Mar 1995–Feb 1998
36-Month
122.17"
(3,103.12mm)
96.34"
(2,447.04mm)
25.83"
(656.08mm)
125th Driest
Driest since:
1931
1st Wettest
Wettest to Date
1998
Mar 1994–Feb 1998
48-Month
153.68"
(3,903.47mm)
128.36"
(3,260.34mm)
25.32"
(643.13mm)
123rd Driest
Driest since:
1932
2nd Wettest
Wettest to Date
1999
Mar 1993–Feb 1998
60-Month
184.28"
(4,680.71mm)
160.34"
(4,072.64mm)
23.94"
(608.07mm)
121st Driest
Driest since:
1932
3rd Wettest
Wettest to Date
1999

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