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 June 2021. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, May 1901

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1901
1-Month
2.03"
(51.56mm)
2.14"
(54.36mm)
-0.11"
(-2.80mm)
61st Driest Driest since: 1897 1924
67th Wettest Wettest since: 1900 1998
Ties: 1968
Apr–May 1901
2-Month
4.52"
(114.81mm)
4.50"
(114.30mm)
0.02"
(0.51mm)
67th Driest Driest since: 1898 1924
61st Wettest Wettest since: 1900 1996
Mar–May 1901
3-Month
7.18"
(182.37mm)
7.76"
(197.10mm)
-0.58"
(-14.73mm)
48th Driest Driest since: 1898 1924
80th Wettest Wettest since: 1900 2011
Feb–May 1901
4-Month
11.98"
(304.29mm)
11.37"
(288.80mm)
0.61"
(15.49mm)
77th Driest Driest since: 1900 1924
51st Wettest Wettest since: 1899 1904
Jan–May 1901
5-Month
17.13"
(435.10mm)
15.90"
(403.86mm)
1.23"
(31.24mm)
83rd Driest Driest since: 1900 1924
45th Wettest Wettest since: 1899 1904
Dec 1900–May 1901
6-Month
21.33"
(541.78mm)
20.54"
(521.72mm)
0.79"
(20.06mm)
80th Driest Driest since: 1900 1977
47th Wettest Wettest since: 1896 1997
Nov 1900–May 1901
7-Month
24.72"
(627.89mm)
24.89"
(632.21mm)
-0.17"
(-4.32mm)
64th Driest Driest to Date 1977
63rd Wettest Wettest since: 1900 1974
Oct 1900–May 1901
8-Month
29.29"
(743.97mm)
27.45"
(697.23mm)
1.84"
(46.74mm)
90th Driest Driest since: 1900 1977
37th Wettest Wettest since: 1897 1974
Sep 1900–May 1901
9-Month
30.89"
(784.61mm)
28.87"
(733.30mm)
2.02"
(51.31mm)
90th Driest Driest since: 1900 1977
37th Wettest Wettest since: 1897 1974
Aug 1900–May 1901
10-Month
31.78"
(807.21mm)
29.68"
(753.87mm)
2.10"
(53.34mm)
93rd Driest Driest since: 1900 1977
34th Wettest Wettest since: 1897 1974
Jul 1900–May 1901
11-Month
32.10"
(815.34mm)
30.40"
(772.16mm)
1.70"
(43.18mm)
92nd Driest Driest since: 1900 1977
35th Wettest Wettest since: 1897 1974
Jun 1900–May 1901
12-Month
33.71"
(856.23mm)
32.13"
(816.10mm)
1.58"
(40.13mm)
93rd Driest Driest since: 1900 1977
34th Wettest Wettest since: 1897 1996
Dec 1899–May 1901
18-Month
52.78"
(1,340.61mm)
52.65"
(1,337.31mm)
0.13"
(3.30mm)
70th Driest Driest since: 1899 1930
56th Wettest Wettest since: 1900 1997
Jun 1899–May 1901
24-Month
66.63"
(1,692.40mm)
64.28"
(1,632.71mm)
2.35"
(59.69mm)
89th Driest Driest since: 1900 1930
37th Wettest Wettest since: 1898 1997
Jun 1898–May 1901
36-Month
98.05"
(2,490.47mm)
96.36"
(2,447.54mm)
1.69"
(42.93mm)
77th Driest Driest since: 1900 1931
48th Wettest Wettest since: 1899 1998
Jun 1897–May 1901
48-Month
130.83"
(3,323.08mm)
128.40"
(3,261.36mm)
2.43"
(61.72mm)
79th Driest Driest to Date 1931
45th Wettest Wettest since: 1900 1999
Jun 1896–May 1901
60-Month
165.96"
(4,215.38mm)
160.37"
(4,073.40mm)
5.59"
(141.98mm)
90th Driest Driest since: 1900 1933
33rd Wettest Wettest to Date 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published July 2021, retrieved on July 30, 2021 from https://www.ncdc.noaa.gov/cag/