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, October 2002

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
October 2002
1-Month
0.56"
(14.22mm)
2.54"
(64.52mm)
-1.98"
(-50.30mm)
7th Driest
Driest since:
1895
122nd Wettest
Wettest since:
2016
Sep–Oct 2002
2-Month
1.36"
(34.54mm)
3.96"
(100.58mm)
-2.60"
(-66.04mm)
3rd Driest
Driest since:
1987
126th Wettest
Wettest since:
2016
Aug–Oct 2002
3-Month
1.71"
(43.43mm)
4.76"
(120.90mm)
-3.05"
(-77.47mm)
3rd Driest
Driest since:
1987
126th Wettest
Wettest since:
2016
Jul–Oct 2002
4-Month
2.11"
(53.59mm)
5.49"
(139.45mm)
-3.38"
(-85.86mm)
3rd Driest
Driest since:
1952
126th Wettest
Wettest since:
2016
Jun–Oct 2002
5-Month
3.50"
(88.90mm)
7.21"
(183.13mm)
-3.71"
(-94.23mm)
1st Driest
Driest since:
1917, 2002
128th Wettest
Wettest since:
1947
Ties: 1917
May–Oct 2002
6-Month
4.97"
(126.24mm)
9.35"
(237.49mm)
-4.38"
(-111.25mm)
1st Driest
Driest since:
2002
128th Wettest
Wettest since:
1941
Apr–Oct 2002
7-Month
7.46"
(189.48mm)
11.71"
(297.43mm)
-4.25"
(-107.95mm)
1st Driest
Driest since:
2002
128th Wettest
Wettest since:
1997
Mar–Oct 2002
8-Month
10.69"
(271.53mm)
14.97"
(380.24mm)
-4.28"
(-108.71mm)
4th Driest
Driest since:
1939
125th Wettest
Wettest since:
1997
Feb–Oct 2002
9-Month
13.18"
(334.77mm)
18.58"
(471.93mm)
-5.40"
(-137.16mm)
2nd Driest
Driest since:
1929
127th Wettest
Wettest since:
2017
Jan–Oct 2002
10-Month
18.20"
(462.28mm)
23.10"
(586.74mm)
-4.90"
(-124.46mm)
9th Driest
Driest since:
1929
120th Wettest
Wettest since:
1950
Dec 2001–Oct 2002
11-Month
23.87"
(606.30mm)
27.75"
(704.85mm)
-3.88"
(-98.55mm)
23rd Driest
Driest since:
1929
105th Wettest
Wettest since:
1997
Nov 2001–Oct 2002
12-Month
28.90"
(734.06mm)
32.10"
(815.34mm)
-3.20"
(-81.28mm)
28th Driest
Driest since:
1977
100th Wettest
Wettest since:
1997
May 2001–Oct 2002
18-Month
37.05"
(941.07mm)
41.48"
(1,053.59mm)
-4.43"
(-112.52mm)
24th Driest
Driest since:
1929
104th Wettest
Wettest since:
1997
Nov 2000–Oct 2002
24-Month
50.42"
(1,280.67mm)
64.23"
(1,631.44mm)
-13.81"
(-350.77mm)
2nd Driest
Driest since:
1930
125th Wettest
Wettest since:
1997
Nov 1999–Oct 2002
36-Month
81.94"
(2,081.28mm)
96.31"
(2,446.27mm)
-14.37"
(-364.99mm)
4th Driest
Driest since:
1931
122nd Wettest
Wettest since:
1997
Nov 1998–Oct 2002
48-Month
119.96"
(3,046.98mm)
128.38"
(3,260.85mm)
-8.42"
(-213.87mm)
24th Driest
Driest since:
1931
101st Wettest
Wettest since:
1999
Nov 1997–Oct 2002
60-Month
151.87"
(3,857.50mm)
160.37"
(4,073.40mm)
-8.50"
(-215.90mm)
26th Driest
Driest since:
1932
98th Wettest
Wettest since:
1999

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