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 2016

View Period (Months):
Download: csv json xml
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 2016
1-Month
7.16"
(181.86mm)
2.54"
(64.52mm)
4.62"
(117.34mm)
128th Driest
Driest since:
1895
1st Wettest
Wettest to Date
2016
Sep–Oct 2016
2-Month
8.47"
(215.14mm)
3.96"
(100.58mm)
4.51"
(114.56mm)
128th Driest
Driest since:
1987
1st Wettest
Wettest to Date
2016
Aug–Oct 2016
3-Month
8.66"
(219.96mm)
4.76"
(120.90mm)
3.90"
(99.06mm)
128th Driest
Driest since:
1987
1st Wettest
Wettest to Date
2016
Jul–Oct 2016
4-Month
9.47"
(240.54mm)
5.49"
(139.45mm)
3.98"
(101.09mm)
128th Driest
Driest since:
1952
1st Wettest
Wettest to Date
2016
Jun–Oct 2016
5-Month
10.64"
(270.26mm)
7.21"
(183.13mm)
3.43"
(87.13mm)
125th Driest
Driest since:
1917, 2002
4th Wettest
Wettest since:
1947
May–Oct 2016
6-Month
12.42"
(315.47mm)
9.35"
(237.49mm)
3.07"
(77.98mm)
122nd Driest
Driest since:
2002
7th Wettest
Wettest since:
1941
Apr–Oct 2016
7-Month
14.10"
(358.14mm)
11.71"
(297.43mm)
2.39"
(60.71mm)
113th Driest
Driest since:
2002
16th Wettest
Wettest since:
1997
Mar–Oct 2016
8-Month
19.15"
(486.41mm)
14.97"
(380.24mm)
4.18"
(106.17mm)
123rd Driest
Driest since:
1939
6th Wettest
Wettest since:
1997
Feb–Oct 2016
9-Month
22.06"
(560.32mm)
18.58"
(471.93mm)
3.48"
(88.39mm)
113th Driest
Driest since:
1929
16th Wettest
Wettest since:
2017
Jan–Oct 2016
10-Month
26.83"
(681.48mm)
23.10"
(586.74mm)
3.73"
(94.74mm)
111th Driest
Driest since:
1929
18th Wettest
Wettest since:
1950
Dec 2015–Oct 2016
11-Month
35.43"
(899.92mm)
27.75"
(704.85mm)
7.68"
(195.07mm)
124th Driest
Driest since:
1929
4th Wettest
Wettest since:
1997
Nov 2015–Oct 2016
12-Month
39.69"
(1,008.13mm)
32.10"
(815.34mm)
7.59"
(192.79mm)
122nd Driest
Driest since:
1977
6th Wettest
Wettest since:
1997
May 2015–Oct 2016
18-Month
47.74"
(1,212.60mm)
41.48"
(1,053.59mm)
6.26"
(159.01mm)
114th Driest
Driest since:
1929
14th Wettest
Wettest since:
1997
Nov 2014–Oct 2016
24-Month
67.60"
(1,717.04mm)
64.23"
(1,631.44mm)
3.37"
(85.60mm)
98th Driest
Driest since:
1930
29th Wettest
Wettest since:
1997
Nov 2013–Oct 2016
36-Month
98.69"
(2,506.73mm)
96.31"
(2,446.27mm)
2.38"
(60.46mm)
86th Driest
Driest since:
1931
40th Wettest
Wettest since:
1997
Nov 2012–Oct 2016
48-Month
129.74"
(3,295.40mm)
128.38"
(3,260.85mm)
1.36"
(34.55mm)
75th Driest
Driest since:
1931
50th Wettest
Wettest since:
1999
Nov 2011–Oct 2016
60-Month
163.25"
(4,146.55mm)
160.37"
(4,073.40mm)
2.88"
(73.15mm)
75th Driest
Driest since:
1932
49th Wettest
Wettest since:
1999

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