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, December 2015

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2018)
Wettest/Driest
Since
Record
December 2015
1-Month
8.60"
(218.44mm)
4.63"
(117.60mm)
3.97"
(100.84mm)
121st Driest Driest since: 2014 1976
4th Wettest Wettest since: 1996 1964
Nov–Dec 2015
2-Month
12.86"
(326.64mm)
8.97"
(227.84mm)
3.89"
(98.80mm)
112th Driest Driest since: 2014 1976
13th Wettest Wettest since: 2006 1996
Oct–Dec 2015
3-Month
15.32"
(389.13mm)
11.51"
(292.35mm)
3.81"
(96.78mm)
114th Driest Driest since: 2014 1976
11th Wettest Wettest since: 1996 1996
Sep–Dec 2015
4-Month
16.49"
(418.85mm)
12.93"
(328.42mm)
3.56"
(90.43mm)
108th Driest Driest since: 2014 1976
17th Wettest Wettest since: 1998 1996
Aug–Dec 2015
5-Month
17.26"
(438.40mm)
13.73"
(348.74mm)
3.53"
(89.66mm)
110th Driest Driest since: 2014 1936
15th Wettest Wettest since: 1996 1996
Jul–Dec 2015
6-Month
18.13"
(460.50mm)
14.46"
(367.28mm)
3.67"
(93.22mm)
110th Driest Driest since: 2014 1936
15th Wettest Wettest since: 1996 1996
Jun–Dec 2015
7-Month
18.68"
(474.47mm)
16.18"
(410.97mm)
2.50"
(63.50mm)
96th Driest Driest since: 2014 1976
29th Wettest Wettest since: 2012 1996
May–Dec 2015
8-Month
20.91"
(531.11mm)
18.32"
(465.33mm)
2.59"
(65.78mm)
94th Driest Driest since: 2014 1935
31st Wettest Wettest since: 2012 1996
Apr–Dec 2015
9-Month
22.42"
(569.47mm)
20.67"
(525.02mm)
1.75"
(44.45mm)
86th Driest Driest since: 2014 1976
39th Wettest Wettest since: 2012 1996
Mar–Dec 2015
10-Month
25.12"
(638.05mm)
23.93"
(607.82mm)
1.19"
(30.23mm)
77th Driest Driest since: 2013 1976
48th Wettest Wettest since: 2014 1996
Ties: 1947
Feb–Dec 2015
11-Month
28.32"
(719.33mm)
27.54"
(699.52mm)
0.78"
(19.81mm)
68th Driest Driest since: 2013 1935
57th Wettest Wettest since: 2014 1996
Jan–Dec 2015
12-Month
31.14"
(790.96mm)
32.07"
(814.58mm)
-0.93"
(-23.62mm)
56th Driest Driest since: 2013 1929
69th Wettest Wettest since: 2014 1996
Jul 2014–Dec 2015
18-Month
47.63"
(1,209.80mm)
46.58"
(1,183.13mm)
1.05"
(26.67mm)
71st Driest Driest since: 2014 1929
53rd Wettest Wettest since: 2012 1996
Jan 2014–Dec 2015
24-Month
67.12"
(1,704.85mm)
64.19"
(1,630.43mm)
2.93"
(74.42mm)
84th Driest Driest since: 2014 1930
40th Wettest Wettest since: 2012 1996
Jan 2013–Dec 2015
36-Month
91.63"
(2,327.40mm)
96.33"
(2,446.78mm)
-4.70"
(-119.38mm)
32nd Driest Driest since: 2009 1930
91st Wettest Wettest since: 2014 1997
Jan 2012–Dec 2015
48-Month
130.33"
(3,310.38mm)
128.33"
(3,259.58mm)
2.00"
(50.80mm)
80th Driest Driest since: 2011 1931
42nd Wettest Wettest since: 2014 1998
Jan 2011–Dec 2015
60-Month
162.56"
(4,129.02mm)
160.34"
(4,072.64mm)
2.22"
(56.38mm)
71st Driest Driest since: 2013 1932
50th Wettest Wettest since: 2014 1999
Ties: 1956

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published October 2019, retrieved on October 16, 2019 from https://www.ncdc.noaa.gov/cag/