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 July 2020. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, May 1921

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
May 1921
1-Month
2.66"
(67.56mm)
2.14"
(54.36mm)
0.52"
(13.20mm)
93rd Driest Driest since: 1920 1924
34th Wettest Wettest since: 1915 1998
Apr–May 1921
2-Month
5.37"
(136.40mm)
4.50"
(114.30mm)
0.87"
(22.10mm)
95th Driest Driest since: 1920 1924
32nd Wettest Wettest since: 1917 1996
Mar–May 1921
3-Month
8.52"
(216.41mm)
7.76"
(197.10mm)
0.76"
(19.31mm)
84th Driest Driest since: 1920 1924
43rd Wettest Wettest since: 1917 2011
Feb–May 1921
4-Month
12.85"
(326.39mm)
11.37"
(288.80mm)
1.48"
(37.59mm)
93rd Driest Driest since: 1920 1924
34th Wettest Wettest since: 1917 1904
Jan–May 1921
5-Month
18.60"
(472.44mm)
15.90"
(403.86mm)
2.70"
(68.58mm)
105th Driest Driest since: 1920 1924
22nd Wettest Wettest since: 1916 1904
Dec 1920–May 1921
6-Month
24.47"
(621.54mm)
20.54"
(521.72mm)
3.93"
(99.82mm)
106th Driest Driest since: 1920 1977
20th Wettest Wettest since: 1916 1997
Nov 1920–May 1921
7-Month
28.72"
(729.49mm)
24.89"
(632.21mm)
3.83"
(97.28mm)
102nd Driest Driest since: 1920 1977
24th Wettest Wettest since: 1916 1974
Oct 1920–May 1921
8-Month
32.54"
(826.52mm)
27.45"
(697.23mm)
5.09"
(129.29mm)
111th Driest Driest since: 1920 1977
15th Wettest Wettest since: 1916 1974
Sep 1920–May 1921
9-Month
35.60"
(904.24mm)
28.87"
(733.30mm)
6.73"
(170.94mm)
116th Driest Driest since: 1920 1977
10th Wettest Wettest since: 1904 1974
Aug 1920–May 1921
10-Month
36.94"
(938.28mm)
29.68"
(753.87mm)
7.26"
(184.41mm)
120th Driest Driest since: 1920 1977
6th Wettest Wettest to Date 1974
Jul 1920–May 1921
11-Month
37.65"
(956.31mm)
30.40"
(772.16mm)
7.25"
(184.15mm)
119th Driest Driest since: 1920 1977
7th Wettest Wettest to Date 1974
Jun 1920–May 1921
12-Month
39.30"
(998.22mm)
32.13"
(816.10mm)
7.17"
(182.12mm)
116th Driest Driest since: 1920 1977
10th Wettest Wettest since: 1904 1996
Dec 1919–May 1921
18-Month
54.91"
(1,394.71mm)
52.65"
(1,337.31mm)
2.26"
(57.40mm)
91st Driest Driest since: 1920 1930
34th Wettest Wettest since: 1917 1997
Jun 1919–May 1921
24-Month
63.97"
(1,624.84mm)
64.28"
(1,632.71mm)
-0.31"
(-7.87mm)
61st Driest Driest since: 1920 1930
64th Wettest Wettest since: 1917 1997
Jun 1918–May 1921
36-Month
95.67"
(2,430.02mm)
96.36"
(2,447.54mm)
-0.69"
(-17.52mm)
58th Driest Driest since: 1920 1931
66th Wettest Wettest since: 1918 1998
Jun 1917–May 1921
48-Month
125.45"
(3,186.43mm)
128.40"
(3,261.36mm)
-2.95"
(-74.93mm)
45th Driest Driest since: 1920 1931
78th Wettest Wettest since: 1919 1999
Jun 1916–May 1921
60-Month
156.00"
(3,962.40mm)
160.37"
(4,073.40mm)
-4.37"
(-111.00mm)
43rd Driest Driest since: 1920 1933
79th Wettest Wettest since: 1919 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published August 2020, retrieved on August 7, 2020 from https://www.ncdc.noaa.gov/cag/