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 1908

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 1908
1-Month
3.63"
(92.20mm)
2.54"
(64.52mm)
1.09"
(27.68mm)
107th Driest
Driest since:
1895
22nd Wettest
Wettest since:
2016
Ties: 2021
Sep–Oct 1908
2-Month
4.48"
(113.79mm)
3.96"
(100.58mm)
0.52"
(13.21mm)
84th Driest
Driest since:
1987
45th Wettest
Wettest since:
2016
Aug–Oct 1908
3-Month
5.35"
(135.89mm)
4.76"
(120.90mm)
0.59"
(14.99mm)
88th Driest
Driest since:
1987
41st Wettest
Wettest since:
2016
Jul–Oct 1908
4-Month
6.17"
(156.72mm)
5.49"
(139.45mm)
0.68"
(17.27mm)
91st Driest
Driest since:
1952
38th Wettest
Wettest since:
2016
Ties: 2019
Jun–Oct 1908
5-Month
8.15"
(207.01mm)
7.21"
(183.13mm)
0.94"
(23.88mm)
96th Driest
Driest since:
1917, 2002
33rd Wettest
Wettest since:
1947
May–Oct 1908
6-Month
10.97"
(278.64mm)
9.35"
(237.49mm)
1.62"
(41.15mm)
103rd Driest
Driest since:
2002
26th Wettest
Wettest since:
1941
Apr–Oct 1908
7-Month
12.76"
(324.10mm)
11.71"
(297.43mm)
1.05"
(26.67mm)
87th Driest
Driest since:
2002
42nd Wettest
Wettest since:
1997
Mar–Oct 1908
8-Month
16.09"
(408.69mm)
14.97"
(380.24mm)
1.12"
(28.45mm)
85th Driest
Driest since:
1939
44th Wettest
Wettest since:
1997
Ties: 1998
Feb–Oct 1908
9-Month
18.84"
(478.54mm)
18.58"
(471.93mm)
0.26"
(6.61mm)
70th Driest
Driest since:
1929
59th Wettest
Wettest since:
2017
Jan–Oct 1908
10-Month
21.68"
(550.67mm)
23.10"
(586.74mm)
-1.42"
(-36.07mm)
42nd Driest
Driest since:
1929
87th Wettest
Wettest since:
1950
Dec 1907–Oct 1908
11-Month
28.05"
(712.47mm)
27.75"
(704.85mm)
0.30"
(7.62mm)
66th Driest
Driest since:
1929
62nd Wettest
Wettest since:
1997
Nov 1907–Oct 1908
12-Month
31.65"
(803.91mm)
32.10"
(815.34mm)
-0.45"
(-11.43mm)
62nd Driest
Driest since:
1977
66th Wettest
Wettest since:
1997
May 1907–Oct 1908
18-Month
40.61"
(1,031.49mm)
41.48"
(1,053.59mm)
-0.87"
(-22.10mm)
56th Driest
Driest since:
1929
72nd Wettest
Wettest since:
1997
Nov 1906–Oct 1908
24-Month
68.68"
(1,744.47mm)
64.23"
(1,631.44mm)
4.45"
(113.03mm)
105th Driest
Driest since:
1930
22nd Wettest
Wettest since:
1997
Nov 1905–Oct 1908
36-Month
98.88"
(2,511.55mm)
96.31"
(2,446.27mm)
2.57"
(65.28mm)
87th Driest
Driest since:
1931
39th Wettest
Wettest since:
1997
Nov 1904–Oct 1908
48-Month
128.36"
(3,260.34mm)
128.38"
(3,260.85mm)
-0.02"
(-0.51mm)
66th Driest
Driest since:
1931
59th Wettest
Wettest since:
1999
Nov 1903–Oct 1908
60-Month
166.47"
(4,228.34mm)
160.37"
(4,073.40mm)
6.10"
(154.94mm)
95th Driest
Driest since:
1932
29th Wettest
Wettest since:
1999

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