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


Northwest Climate Region

Precipitation Rankings, May 2015

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2015
1-Month
2.23"
(56.64mm)
2.14"
(54.36mm)
0.09"
(2.28mm)
70th Driest Driest since: 2014 1924
56th Wettest Wettest since: 2013 1998
Ties: 1923
Apr–May 2015
2-Month
3.74"
(95.00mm)
4.50"
(114.30mm)
-0.76"
(-19.30mm)
32nd Driest Driest since: 2008 1924
94th Wettest Wettest since: 2014 1996
Ties: 1910
Mar–May 2015
3-Month
6.44"
(163.58mm)
7.76"
(197.10mm)
-1.32"
(-33.52mm)
26th Driest Driest since: 2007 1924
100th Wettest Wettest since: 2014 2011
Feb–May 2015
4-Month
9.64"
(244.86mm)
11.37"
(288.80mm)
-1.73"
(-43.94mm)
32nd Driest Driest since: 2013 1924
94th Wettest Wettest since: 2014 1904
Jan–May 2015
5-Month
12.46"
(316.48mm)
15.90"
(403.86mm)
-3.44"
(-87.38mm)
15th Driest Driest since: 2013 1924
111th Wettest Wettest since: 2014 1904
Dec 2014–May 2015
6-Month
17.70"
(449.58mm)
20.54"
(521.72mm)
-2.84"
(-72.14mm)
25th Driest Driest since: 2007 1977
100th Wettest Wettest since: 2014 1997
Nov 2014–May 2015
7-Month
22.09"
(561.09mm)
24.89"
(632.21mm)
-2.80"
(-71.12mm)
27th Driest Driest since: 2005 1977
98th Wettest Wettest since: 2014 1974
Oct 2014–May 2015
8-Month
25.53"
(648.46mm)
27.45"
(697.23mm)
-1.92"
(-48.77mm)
34th Driest Driest since: 2014 1977
91st Wettest Wettest since: 2013 1974
Sep 2014–May 2015
9-Month
26.98"
(685.29mm)
28.87"
(733.30mm)
-1.89"
(-48.01mm)
33rd Driest Driest since: 2009 1977
92nd Wettest Wettest since: 2014 1974
Aug 2014–May 2015
10-Month
28.41"
(721.61mm)
29.68"
(753.87mm)
-1.27"
(-32.26mm)
41st Driest Driest since: 2013 1977
84th Wettest Wettest since: 2014 1974
Jul 2014–May 2015
11-Month
28.95"
(735.33mm)
30.40"
(772.16mm)
-1.45"
(-36.83mm)
44th Driest Driest since: 2013 1977
81st Wettest Wettest since: 2014 1974
Jun 2014–May 2015
12-Month
30.31"
(769.87mm)
32.13"
(816.10mm)
-1.82"
(-46.23mm)
38th Driest Driest since: 2009 1977
87th Wettest Wettest since: 2014 1996
Dec 2013–May 2015
18-Month
50.57"
(1,284.48mm)
52.65"
(1,337.31mm)
-2.08"
(-52.83mm)
43rd Driest Driest since: 2014 1930
81st Wettest Wettest since: 2013 1997
Jun 2013–May 2015
24-Month
61.35"
(1,558.29mm)
64.28"
(1,632.71mm)
-2.93"
(-74.42mm)
40th Driest Driest since: 2010 1930
84th Wettest Wettest since: 2014 1997
Jun 2012–May 2015
36-Month
92.03"
(2,337.56mm)
96.36"
(2,447.54mm)
-4.33"
(-109.98mm)
35th Driest Driest since: 2010 1931
88th Wettest Wettest since: 2014 1998
Ties: 1919
Jun 2011–May 2015
48-Month
123.60"
(3,139.44mm)
128.40"
(3,261.36mm)
-4.80"
(-121.92mm)
37th Driest Driest since: 2010 1931
85th Wettest Wettest since: 2014 1999
Jun 2010–May 2015
60-Month
163.96"
(4,164.58mm)
160.37"
(4,073.40mm)
3.59"
(91.18mm)
78th Driest Driest since: 2013 1933
43rd Wettest Wettest since: 2014 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published October 2019, retrieved on October 13, 2019 from https://www.ncdc.noaa.gov/cag/