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 1950

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 1950
1-Month
6.01"
(152.65mm)
2.54"
(64.52mm)
3.47"
(88.13mm)
127th Driest
Driest since:
1895
2nd Wettest
Wettest to Date
2016
Sep–Oct 1950
2-Month
7.14"
(181.36mm)
3.96"
(100.58mm)
3.18"
(80.78mm)
126th Driest
Driest since:
1987
3rd Wettest
Wettest since:
2016
Aug–Oct 1950
3-Month
7.92"
(201.17mm)
4.76"
(120.90mm)
3.16"
(80.27mm)
126th Driest
Driest since:
1987
3rd Wettest
Wettest since:
2016
Jul–Oct 1950
4-Month
8.55"
(217.17mm)
5.49"
(139.45mm)
3.06"
(77.72mm)
124th Driest
Driest since:
1952
5th Wettest
Wettest since:
2016
Jun–Oct 1950
5-Month
10.84"
(275.34mm)
7.21"
(183.13mm)
3.63"
(92.21mm)
126th Driest
Driest since:
1917, 2002
3rd Wettest
Wettest since:
1947
May–Oct 1950
6-Month
11.94"
(303.28mm)
9.35"
(237.49mm)
2.59"
(65.79mm)
116th Driest
Driest since:
2002
13th Wettest
Wettest since:
1941
Apr–Oct 1950
7-Month
13.97"
(354.84mm)
11.71"
(297.43mm)
2.26"
(57.41mm)
112th Driest
Driest since:
2002
17th Wettest
Wettest since:
1997
Mar–Oct 1950
8-Month
19.04"
(483.62mm)
14.97"
(380.24mm)
4.07"
(103.38mm)
122nd Driest
Driest since:
1939
7th Wettest
Wettest since:
1997
Ties: 1948, 1995
Feb–Oct 1950
9-Month
23.14"
(587.76mm)
18.58"
(471.93mm)
4.56"
(115.83mm)
120th Driest
Driest since:
1929
9th Wettest
Wettest since:
2017
Jan–Oct 1950
10-Month
29.91"
(759.71mm)
23.10"
(586.74mm)
6.81"
(172.97mm)
128th Driest
Driest since:
1929
1st Wettest
Wettest to Date
1950
Dec 1949–Oct 1950
11-Month
33.96"
(862.58mm)
27.75"
(704.85mm)
6.21"
(157.73mm)
121st Driest
Driest since:
1929
7th Wettest
Wettest to Date
1997
Nov 1949–Oct 1950
12-Month
38.43"
(976.12mm)
32.10"
(815.34mm)
6.33"
(160.78mm)
119th Driest
Driest since:
1977
9th Wettest
Wettest to Date
1997
May 1949–Oct 1950
18-Month
45.96"
(1,167.38mm)
41.48"
(1,053.59mm)
4.48"
(113.79mm)
104th Driest
Driest since:
1929
24th Wettest
Wettest since:
1997
Ties: 1969
Nov 1948–Oct 1950
24-Month
68.08"
(1,729.23mm)
64.23"
(1,631.44mm)
3.85"
(97.79mm)
99th Driest
Driest since:
1930
28th Wettest
Wettest since:
1997
Nov 1947–Oct 1950
36-Month
102.83"
(2,611.88mm)
96.31"
(2,446.27mm)
6.52"
(165.61mm)
104th Driest
Driest since:
1931
22nd Wettest
Wettest since:
1997
Nov 1946–Oct 1950
48-Month
136.57"
(3,468.88mm)
128.38"
(3,260.85mm)
8.19"
(208.03mm)
108th Driest
Driest since:
1931
17th Wettest
Wettest to Date
1999
Nov 1945–Oct 1950
60-Month
171.84"
(4,364.74mm)
160.37"
(4,073.40mm)
11.47"
(291.34mm)
111th Driest
Driest since:
1932
13th Wettest
Wettest to Date
1999

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