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 1960

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1960
1-Month
2.32"
(58.93mm)
2.54"
(64.52mm)
-0.22"
(-5.59mm)
59th Driest
Driest since:
1895
70th Wettest
Wettest since:
2016
Sep–Oct 1960
2-Month
3.09"
(78.49mm)
3.96"
(100.58mm)
-0.87"
(-22.09mm)
36th Driest
Driest since:
1987
93rd Wettest
Wettest since:
2016
Ties: 2018
Aug–Oct 1960
3-Month
4.48"
(113.79mm)
4.76"
(120.90mm)
-0.28"
(-7.11mm)
57th Driest
Driest since:
1987
72nd Wettest
Wettest since:
2016
Jul–Oct 1960
4-Month
4.71"
(119.63mm)
5.49"
(139.45mm)
-0.78"
(-19.82mm)
43rd Driest
Driest since:
1952
86th Wettest
Wettest since:
2016
Ties: 1966
Jun–Oct 1960
5-Month
5.28"
(134.11mm)
7.21"
(183.13mm)
-1.93"
(-49.02mm)
19th Driest
Driest since:
1917, 2002
110th Wettest
Wettest since:
1947
May–Oct 1960
6-Month
8.65"
(219.71mm)
9.35"
(237.49mm)
-0.70"
(-17.78mm)
48th Driest
Driest since:
2002
81st Wettest
Wettest since:
1941
Apr–Oct 1960
7-Month
11.38"
(289.05mm)
11.71"
(297.43mm)
-0.33"
(-8.38mm)
58th Driest
Driest since:
2002
71st Wettest
Wettest since:
1997
Mar–Oct 1960
8-Month
15.83"
(402.08mm)
14.97"
(380.24mm)
0.86"
(21.84mm)
77th Driest
Driest since:
1939
52nd Wettest
Wettest since:
1997
Feb–Oct 1960
9-Month
20.05"
(509.27mm)
18.58"
(471.93mm)
1.47"
(37.34mm)
89th Driest
Driest since:
1929
40th Wettest
Wettest since:
2017
Jan–Oct 1960
10-Month
23.33"
(592.58mm)
23.10"
(586.74mm)
0.23"
(5.84mm)
67th Driest
Driest since:
1929
62nd Wettest
Wettest since:
1950
Dec 1959–Oct 1960
11-Month
26.07"
(662.18mm)
27.75"
(704.85mm)
-1.68"
(-42.67mm)
42nd Driest
Driest since:
1929
86th Wettest
Wettest since:
1997
Nov 1959–Oct 1960
12-Month
28.99"
(736.35mm)
32.10"
(815.34mm)
-3.11"
(-78.99mm)
29th Driest
Driest since:
1977
99th Wettest
Wettest since:
1997
May 1959–Oct 1960
18-Month
40.25"
(1,022.35mm)
41.48"
(1,053.59mm)
-1.23"
(-31.24mm)
51st Driest
Driest since:
1929
77th Wettest
Wettest since:
1997
Nov 1958–Oct 1960
24-Month
64.31"
(1,633.47mm)
64.23"
(1,631.44mm)
0.08"
(2.03mm)
67th Driest
Driest since:
1930
60th Wettest
Wettest since:
1997
Nov 1957–Oct 1960
36-Month
97.54"
(2,477.52mm)
96.31"
(2,446.27mm)
1.23"
(31.25mm)
73rd Driest
Driest since:
1931
53rd Wettest
Wettest since:
1997
Nov 1956–Oct 1960
48-Month
127.25"
(3,232.15mm)
128.38"
(3,260.85mm)
-1.13"
(-28.70mm)
57th Driest
Driest since:
1931
68th Wettest
Wettest since:
1999
Nov 1955–Oct 1960
60-Month
168.69"
(4,284.73mm)
160.37"
(4,073.40mm)
8.32"
(211.33mm)
102nd Driest
Driest since:
1932
22nd Wettest
Wettest since:
1999

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