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


Northwest Climate Region

Precipitation Rankings, April 2012

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
April 2012
1-Month
3.08"
(78.23mm)
2.36"
(59.94mm)
0.72"
(18.29mm)
101st Driest Driest since: 2009 1977
26th Wettest Wettest since: 2011 1937
Ties: 1965
Mar–Apr 2012
2-Month
9.46"
(240.28mm)
5.62"
(142.75mm)
3.84"
(97.53mm)
123rd Driest Driest since: 2010 1924
4th Wettest Wettest since: 2011 1904
Feb–Apr 2012
3-Month
12.49"
(317.25mm)
9.23"
(234.44mm)
3.26"
(82.81mm)
117th Driest Driest since: 2010 1911
10th Wettest Wettest since: 2011 1904
Jan–Apr 2012
4-Month
17.61"
(447.29mm)
13.75"
(349.25mm)
3.86"
(98.04mm)
116th Driest Driest since: 2011 1977
11th Wettest Wettest since: 1996 1904
Dec 2011–Apr 2012
5-Month
19.99"
(507.75mm)
18.40"
(467.36mm)
1.59"
(40.39mm)
89th Driest Driest since: 2010 1977
37th Wettest Wettest since: 2011 1997
Nov 2011–Apr 2012
6-Month
23.70"
(601.98mm)
22.75"
(577.85mm)
0.95"
(24.13mm)
75th Driest Driest since: 2010 1977
51st Wettest Wettest since: 2011 1974
Oct 2011–Apr 2012
7-Month
26.37"
(669.80mm)
25.31"
(642.87mm)
1.06"
(26.93mm)
80th Driest Driest since: 2010 1977
46th Wettest Wettest since: 2011 1974
Sep 2011–Apr 2012
8-Month
26.94"
(684.28mm)
26.73"
(678.94mm)
0.21"
(5.34mm)
67th Driest Driest since: 2010 1977
59th Wettest Wettest since: 2011 1974
Aug 2011–Apr 2012
9-Month
27.20"
(690.88mm)
27.53"
(699.26mm)
-0.33"
(-8.38mm)
64th Driest Driest since: 2010 1977
62nd Wettest Wettest since: 2011 1974
Jul 2011–Apr 2012
10-Month
27.94"
(709.68mm)
28.26"
(717.80mm)
-0.32"
(-8.12mm)
63rd Driest Driest since: 2010 1977
63rd Wettest Wettest since: 2011 1974
Jun 2011–Apr 2012
11-Month
29.56"
(750.82mm)
29.99"
(761.75mm)
-0.43"
(-10.93mm)
64th Driest Driest since: 2010 1977
62nd Wettest Wettest since: 2011 1974
May 2011–Apr 2012
12-Month
33.06"
(839.72mm)
32.13"
(816.10mm)
0.93"
(23.62mm)
83rd Driest Driest since: 2010 1977
43rd Wettest Wettest since: 2011 1997
Nov 2010–Apr 2012
18-Month
60.53"
(1,537.46mm)
54.88"
(1,393.95mm)
5.65"
(143.51mm)
107th Driest Driest since: 2011 1930
18th Wettest Wettest since: 2000 1997
May 2010–Apr 2012
24-Month
73.20"
(1,859.28mm)
64.29"
(1,632.97mm)
8.91"
(226.31mm)
113th Driest Driest since: 2011 1930
12th Wettest Wettest since: 1999 1997
May 2009–Apr 2012
36-Month
103.91"
(2,639.31mm)
96.34"
(2,447.04mm)
7.57"
(192.27mm)
104th Driest Driest since: 2011 1931
20th Wettest Wettest since: 2000 1997
May 2008–Apr 2012
48-Month
131.69"
(3,344.93mm)
128.37"
(3,260.60mm)
3.32"
(84.33mm)
83rd Driest Driest since: 2011 1932
40th Wettest Wettest since: 2000 1999
May 2007–Apr 2012
60-Month
161.86"
(4,111.24mm)
160.35"
(4,072.89mm)
1.51"
(38.35mm)
67th Driest Driest since: 2011 1933
55th Wettest Wettest since: 2001 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published June 2020, retrieved on July 4, 2020 from https://www.ncdc.noaa.gov/cag/