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, May 1996

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
May 1996
1-Month
3.66"
(92.96mm)
2.14"
(54.36mm)
1.52"
(38.60mm)
121st Driest
Driest since:
1924
8th Wettest
Wettest since:
1998
Apr–May 1996
2-Month
7.86"
(199.64mm)
4.50"
(114.30mm)
3.36"
(85.34mm)
128th Driest
Driest since:
1924
1st Wettest
Wettest to Date
1996
Mar–May 1996
3-Month
10.14"
(257.56mm)
7.76"
(197.10mm)
2.38"
(60.46mm)
113th Driest
Driest since:
1924
16th Wettest
Wettest since:
2011
Feb–May 1996
4-Month
15.76"
(400.30mm)
11.37"
(288.80mm)
4.39"
(111.50mm)
124th Driest
Driest since:
1924
5th Wettest
Wettest since:
1904
Jan–May 1996
5-Month
21.84"
(554.74mm)
15.90"
(403.86mm)
5.94"
(150.88mm)
126th Driest
Driest since:
1924
3rd Wettest
Wettest since:
1904
Dec 1995–May 1996
6-Month
28.01"
(711.45mm)
20.54"
(521.72mm)
7.47"
(189.73mm)
126th Driest
Driest since:
1977
2nd Wettest
Wettest to Date
1997
Nov 1995–May 1996
7-Month
34.79"
(883.67mm)
24.89"
(632.21mm)
9.90"
(251.46mm)
126th Driest
Driest since:
1977
2nd Wettest
Wettest since:
1974
Oct 1995–May 1996
8-Month
37.64"
(956.06mm)
27.45"
(697.23mm)
10.19"
(258.83mm)
125th Driest
Driest since:
1977
3rd Wettest
Wettest since:
1974
Sep 1995–May 1996
9-Month
38.86"
(987.04mm)
28.87"
(733.30mm)
9.99"
(253.74mm)
125th Driest
Driest since:
1977
3rd Wettest
Wettest since:
1974
Aug 1995–May 1996
10-Month
39.83"
(1,011.68mm)
29.68"
(753.87mm)
10.15"
(257.81mm)
126th Driest
Driest since:
1977
2nd Wettest
Wettest since:
1974
Ties: 1997
Jul 1995–May 1996
11-Month
41.05"
(1,042.67mm)
30.40"
(772.16mm)
10.65"
(270.51mm)
126th Driest
Driest since:
1977
2nd Wettest
Wettest since:
1974
Jun 1995–May 1996
12-Month
43.71"
(1,110.23mm)
32.13"
(816.10mm)
11.58"
(294.13mm)
127th Driest
Driest since:
1977
1st Wettest
Wettest to Date
1996
Dec 1994–May 1996
18-Month
67.03"
(1,702.56mm)
52.65"
(1,337.31mm)
14.38"
(365.25mm)
125th Driest
Driest since:
1930
2nd Wettest
Wettest to Date
1997
Jun 1994–May 1996
24-Month
79.02"
(2,007.11mm)
64.28"
(1,632.71mm)
14.74"
(374.40mm)
124th Driest
Driest since:
1930
3rd Wettest
Wettest since:
1997
Jun 1993–May 1996
36-Month
104.86"
(2,663.44mm)
96.36"
(2,447.54mm)
8.50"
(215.90mm)
111th Driest
Driest since:
1931
15th Wettest
Wettest since:
1998
Jun 1992–May 1996
48-Month
137.79"
(3,499.87mm)
128.40"
(3,261.36mm)
9.39"
(238.51mm)
111th Driest
Driest since:
1931
14th Wettest
Wettest since:
1999
Jun 1991–May 1996
60-Month
162.65"
(4,131.31mm)
160.37"
(4,073.40mm)
2.28"
(57.91mm)
74th Driest
Driest since:
1933
50th Wettest
Wettest since:
1999

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