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 November 2019. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, May 1940

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1940
1-Month
1.09"
(27.69mm)
2.14"
(54.36mm)
-1.05"
(-26.67mm)
9th Driest Driest since: 1935 1924
117th Wettest Wettest since: 1939 1998
Apr–May 1940
2-Month
3.87"
(98.30mm)
4.50"
(114.30mm)
-0.63"
(-16.00mm)
37th Driest Driest since: 1939 1924
89th Wettest Wettest since: 1937 1996
Mar–May 1940
3-Month
8.07"
(204.98mm)
7.76"
(197.10mm)
0.31"
(7.88mm)
72nd Driest Driest since: 1939 1924
54th Wettest Wettest since: 1938 2011
Ties: 1900
Feb–May 1940
4-Month
15.12"
(384.05mm)
11.37"
(288.80mm)
3.75"
(95.25mm)
117th Driest Driest since: 1939 1924
9th Wettest Wettest since: 1916 1904
Jan–May 1940
5-Month
18.72"
(475.49mm)
15.90"
(403.86mm)
2.82"
(71.63mm)
106th Driest Driest since: 1939 1924
20th Wettest Wettest since: 1916 1904
Dec 1939–May 1940
6-Month
24.65"
(626.11mm)
20.54"
(521.72mm)
4.11"
(104.39mm)
107th Driest Driest since: 1939 1977
18th Wettest Wettest since: 1916 1997
Nov 1939–May 1940
7-Month
25.77"
(654.56mm)
24.89"
(632.21mm)
0.88"
(22.35mm)
76th Driest Driest since: 1939 1977
49th Wettest Wettest since: 1938 1974
Oct 1939–May 1940
8-Month
28.05"
(712.47mm)
27.45"
(697.23mm)
0.60"
(15.24mm)
72nd Driest Driest since: 1939 1977
53rd Wettest Wettest since: 1938 1974
Sep 1939–May 1940
9-Month
28.96"
(735.58mm)
28.87"
(733.30mm)
0.09"
(2.28mm)
63rd Driest Driest since: 1939 1977
62nd Wettest Wettest since: 1938 1974
Aug 1939–May 1940
10-Month
29.33"
(744.98mm)
29.68"
(753.87mm)
-0.35"
(-8.89mm)
62nd Driest Driest since: 1939 1977
63rd Wettest Wettest since: 1938 1974
Jul 1939–May 1940
11-Month
30.07"
(763.78mm)
30.40"
(772.16mm)
-0.33"
(-8.38mm)
63rd Driest Driest since: 1939 1977
62nd Wettest Wettest since: 1938 1974
Jun 1939–May 1940
12-Month
31.46"
(799.08mm)
32.13"
(816.10mm)
-0.67"
(-17.02mm)
59th Driest Driest since: 1939 1977
66th Wettest Wettest since: 1938 1996
Dec 1938–May 1940
18-Month
46.73"
(1,186.94mm)
52.65"
(1,337.31mm)
-5.92"
(-150.37mm)
16th Driest Driest since: 1936 1930
108th Wettest Wettest since: 1939 1997
Jun 1938–May 1940
24-Month
56.69"
(1,439.93mm)
64.28"
(1,632.71mm)
-7.59"
(-192.78mm)
12th Driest Driest since: 1937 1930
112th Wettest Wettest since: 1939 1997
Jun 1937–May 1940
36-Month
94.79"
(2,407.67mm)
96.36"
(2,447.54mm)
-1.57"
(-39.87mm)
52nd Driest Driest since: 1939 1931
71st Wettest Wettest since: 1934 1998
Jun 1936–May 1940
48-Month
121.30"
(3,081.02mm)
128.40"
(3,261.36mm)
-7.10"
(-180.34mm)
29th Driest Driest since: 1939 1931
93rd Wettest Wettest since: 1938 1999
Jun 1935–May 1940
60-Month
148.70"
(3,776.98mm)
160.37"
(4,073.40mm)
-11.67"
(-296.42mm)
18th Driest Driest since: 1939 1933
103rd Wettest Wettest since: 1938 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published December 2019, retrieved on December 14, 2019 from https://www.ncdc.noaa.gov/cag/