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 2019. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, April 2015

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
April 2015
1-Month
1.51"
(38.35mm)
2.36"
(59.94mm)
-0.85"
(-21.59mm)
19th Driest Driest since: 1999 1977
107th Wettest Wettest since: 2014 1937
Mar–Apr 2015
2-Month
4.21"
(106.93mm)
5.62"
(142.75mm)
-1.41"
(-35.82mm)
19th Driest Driest since: 2004 1924
107th Wettest Wettest since: 2014 1904
Feb–Apr 2015
3-Month
7.41"
(188.21mm)
9.23"
(234.44mm)
-1.82"
(-46.23mm)
29th Driest Driest since: 2013 1911
97th Wettest Wettest since: 2014 1904
Jan–Apr 2015
4-Month
10.23"
(259.84mm)
13.75"
(349.25mm)
-3.52"
(-89.41mm)
13th Driest Driest since: 2013 1977
113th Wettest Wettest since: 2014 1904
Dec 2014–Apr 2015
5-Month
15.47"
(392.94mm)
18.40"
(467.36mm)
-2.93"
(-74.42mm)
21st Driest Driest since: 2005 1977
104th Wettest Wettest since: 2014 1997
Nov 2014–Apr 2015
6-Month
19.86"
(504.44mm)
22.75"
(577.85mm)
-2.89"
(-73.41mm)
26th Driest Driest since: 2005 1977
99th Wettest Wettest since: 2014 1974
Oct 2014–Apr 2015
7-Month
23.30"
(591.82mm)
25.31"
(642.87mm)
-2.01"
(-51.05mm)
40th Driest Driest since: 2014 1977
85th Wettest Wettest since: 2013 1974
Sep 2014–Apr 2015
8-Month
24.75"
(628.65mm)
26.73"
(678.94mm)
-1.98"
(-50.29mm)
38th Driest Driest since: 2010 1977
87th Wettest Wettest since: 2014 1974
Aug 2014–Apr 2015
9-Month
26.18"
(664.97mm)
27.53"
(699.26mm)
-1.35"
(-34.29mm)
45th Driest Driest since: 2013 1977
80th Wettest Wettest since: 2014 1974
Jul 2014–Apr 2015
10-Month
26.72"
(678.69mm)
28.26"
(717.80mm)
-1.54"
(-39.11mm)
44th Driest Driest since: 2013 1977
81st Wettest Wettest since: 2014 1974
Jun 2014–Apr 2015
11-Month
28.08"
(713.23mm)
29.99"
(761.75mm)
-1.91"
(-48.52mm)
38th Driest Driest since: 2009 1977
87th Wettest Wettest since: 2014 1974
May 2014–Apr 2015
12-Month
29.87"
(758.70mm)
32.13"
(816.10mm)
-2.26"
(-57.40mm)
36th Driest Driest since: 2009 1977
89th Wettest Wettest since: 2014 1997
Nov 2013–Apr 2015
18-Month
50.95"
(1,294.13mm)
54.88"
(1,393.95mm)
-3.93"
(-99.82mm)
28th Driest Driest since: 2009 1930
96th Wettest Wettest since: 2014 1997
May 2013–Apr 2015
24-Month
61.39"
(1,559.31mm)
64.29"
(1,632.97mm)
-2.90"
(-73.66mm)
40th Driest Driest since: 2010 1930
84th Wettest Wettest since: 2014 1997
May 2012–Apr 2015
36-Month
91.81"
(2,331.97mm)
96.34"
(2,447.04mm)
-4.53"
(-115.07mm)
35th Driest Driest since: 2010 1931
88th Wettest Wettest since: 2014 1997
May 2011–Apr 2015
48-Month
124.87"
(3,171.70mm)
128.37"
(3,260.60mm)
-3.50"
(-88.90mm)
42nd Driest Driest since: 2010 1932
80th Wettest Wettest since: 2014 1999
May 2010–Apr 2015
60-Month
165.01"
(4,191.25mm)
160.35"
(4,072.89mm)
4.66"
(118.36mm)
83rd Driest Driest since: 2013 1933
38th Wettest Wettest since: 2014 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published July 2019, retrieved on July 23, 2019 from https://www.ncdc.noaa.gov/cag/