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 1952

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
October 1952
1-Month 		0.40"
(10.16mm)		 2.54"
(64.52mm)		 -2.14"
(-54.36mm)		 5th Driest
Driest since:
 1895
124th Wettest
Wettest since:
 2016
Ties: 1936
Sep–Oct 1952
2-Month 		0.99"
(25.15mm)		 3.96"
(100.58mm)		 -2.97"
(-75.43mm)		 2nd Driest
Driest since:
 1987
127th Wettest
Wettest since:
 2016
Aug–Oct 1952
3-Month 		1.41"
(35.81mm)		 4.76"
(120.90mm)		 -3.35"
(-85.09mm)		 2nd Driest
Driest since:
 1987
127th Wettest
Wettest since:
 2016
Jul–Oct 1952
4-Month 		1.85"
(46.99mm)		 5.49"
(139.45mm)		 -3.64"
(-92.46mm)		 1st Driest
Driest since:
 1952
128th Wettest
Wettest since:
 2016
Jun–Oct 1952
5-Month 		4.57"
(116.08mm)		 7.21"
(183.13mm)		 -2.64"
(-67.05mm)		 9th Driest
Driest since:
 1917, 2002
120th Wettest
Wettest since:
 1947
May–Oct 1952
6-Month 		6.26"
(159.00mm)		 9.35"
(237.49mm)		 -3.09"
(-78.49mm)		 9th Driest
Driest since:
 2002
120th Wettest
Wettest since:
 1941
Apr–Oct 1952
7-Month 		7.54"
(191.52mm)		 11.71"
(297.43mm)		 -4.17"
(-105.91mm)		 2nd Driest
Driest since:
 2002
127th Wettest
Wettest since:
 1997
Mar–Oct 1952
8-Month 		10.39"
(263.91mm)		 14.97"
(380.24mm)		 -4.58"
(-116.33mm)		 2nd Driest
Driest since:
 1939
127th Wettest
Wettest since:
 1997
Feb–Oct 1952
9-Month 		13.65"
(346.71mm)		 18.58"
(471.93mm)		 -4.93"
(-125.22mm)		 4th Driest
Driest since:
 1929
125th Wettest
Wettest since:
 2017
Jan–Oct 1952
10-Month 		17.85"
(453.39mm)		 23.10"
(586.74mm)		 -5.25"
(-133.35mm)		 6th Driest
Driest since:
 1929
123rd Wettest
Wettest since:
 1950
Dec 1951–Oct 1952
11-Month 		23.47"
(596.14mm)		 27.75"
(704.85mm)		 -4.28"
(-108.71mm)		 18th Driest
Driest since:
 1929
110th Wettest
Wettest since:
 1997
Nov 1951–Oct 1952
12-Month 		27.71"
(703.83mm)		 32.10"
(815.34mm)		 -4.39"
(-111.51mm)		 19th Driest
Driest since:
 1977
109th Wettest
Wettest since:
 1997
May 1951–Oct 1952
18-Month 		37.88"
(962.15mm)		 41.48"
(1,053.59mm)		 -3.60"
(-91.44mm)		 31st Driest
Driest since:
 1929
97th Wettest
Wettest since:
 1997
Nov 1950–Oct 1952
24-Month 		62.88"
(1,597.15mm)		 64.23"
(1,631.44mm)		 -1.35"
(-34.29mm)		 51st Driest
Driest since:
 1930
76th Wettest
Wettest since:
 1997
Nov 1949–Oct 1952
36-Month 		101.31"
(2,573.27mm)		 96.31"
(2,446.27mm)		 5.00"
(127.00mm)		 97th Driest
Driest since:
 1931
29th Wettest
Wettest since:
 1997
Nov 1948–Oct 1952
48-Month 		130.96"
(3,326.38mm)		 128.38"
(3,260.85mm)		 2.58"
(65.53mm)		 82nd Driest
Driest since:
 1931
43rd Wettest
Wettest since:
 1999
Nov 1947–Oct 1952
60-Month 		165.71"
(4,209.03mm)		 160.37"
(4,073.40mm)		 5.34"
(135.63mm)		 91st Driest
Driest since:
 1932
33rd Wettest
Wettest since:
 1999

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