Climate at a Glance

Regional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of December 2020. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, October 2017

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
October 2017
1-Month
3.15"
(80.01mm)
2.54"
(64.52mm)
0.61"
(15.49mm)
88th Driest Driest since: 2015 1895
39th Wettest Wettest since: 2016 2016
Ties: 1933, 2004
Sep–Oct 2017
2-Month
4.76"
(120.90mm)
3.96"
(100.58mm)
0.80"
(20.32mm)
93rd Driest Driest since: 2015 1987
34th Wettest Wettest since: 2016 2016
Aug–Oct 2017
3-Month
5.00"
(127.00mm)
4.76"
(120.90mm)
0.24"
(6.10mm)
76th Driest Driest since: 2015 1987
51st Wettest Wettest since: 2016 2016
Ties: 1922
Jul–Oct 2017
4-Month
5.15"
(130.81mm)
5.49"
(139.45mm)
-0.34"
(-8.64mm)
61st Driest Driest since: 2011 1952
66th Wettest Wettest since: 2016 2016
Jun–Oct 2017
5-Month
6.68"
(169.67mm)
7.21"
(183.13mm)
-0.53"
(-13.46mm)
53rd Driest Driest since: 2015 1917, 2002
74th Wettest Wettest since: 2016 1947
May–Oct 2017
6-Month
8.50"
(215.90mm)
9.35"
(237.49mm)
-0.85"
(-21.59mm)
44th Driest Driest since: 2015 2002
83rd Wettest Wettest since: 2016 1941
Ties: 1973
Apr–Oct 2017
7-Month
12.34"
(313.44mm)
11.71"
(297.43mm)
0.63"
(16.01mm)
78th Driest Driest since: 2015 2002
49th Wettest Wettest since: 2016 1997
Mar–Oct 2017
8-Month
18.32"
(465.33mm)
14.97"
(380.24mm)
3.35"
(85.09mm)
113th Driest Driest since: 2015 1939
14th Wettest Wettest since: 2016 1997
Feb–Oct 2017
9-Month
24.46"
(621.28mm)
18.58"
(471.93mm)
5.88"
(149.35mm)
126th Driest Driest since: 2016 1929
1st Wettest Wettest to Date 2017
Jan–Oct 2017
10-Month
28.53"
(724.66mm)
23.10"
(586.74mm)
5.43"
(137.92mm)
122nd Driest Driest since: 2016 1929
5th Wettest Wettest since: 1997 1950
Dec 2016–Oct 2017
11-Month
33.16"
(842.26mm)
27.75"
(704.85mm)
5.41"
(137.41mm)
116th Driest Driest since: 2015 1929
10th Wettest Wettest since: 2016 1997
Nov 2016–Oct 2017
12-Month
37.01"
(940.05mm)
32.10"
(815.34mm)
4.91"
(124.71mm)
106th Driest Driest since: 2015 1977
20th Wettest Wettest since: 2016 1997
May 2016–Oct 2017
18-Month
49.43"
(1,255.52mm)
41.48"
(1,053.59mm)
7.95"
(201.93mm)
118th Driest Driest since: 2016 1929
8th Wettest Wettest since: 2011 1997
Nov 2015–Oct 2017
24-Month
76.70"
(1,948.18mm)
64.23"
(1,631.44mm)
12.47"
(316.74mm)
118th Driest Driest since: 2016 1930
7th Wettest Wettest since: 1998 1997
Nov 2014–Oct 2017
36-Month
104.61"
(2,657.09mm)
96.31"
(2,446.27mm)
8.30"
(210.82mm)
112th Driest Driest since: 2016 1931
12th Wettest Wettest since: 1999 1997
Nov 2013–Oct 2017
48-Month
135.70"
(3,446.78mm)
128.38"
(3,260.85mm)
7.32"
(185.93mm)
103rd Driest Driest since: 2016 1931
20th Wettest Wettest since: 2000 1999
Nov 2012–Oct 2017
60-Month
166.75"
(4,235.45mm)
160.37"
(4,073.40mm)
6.38"
(162.05mm)
94th Driest Driest since: 2016 1932
28th Wettest Wettest since: 2001 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published January 2021, retrieved on January 22, 2021 from https://www.ncdc.noaa.gov/cag/