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 October 2021. 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
(1895-2020)
Wettest/Driest
Since
Record
December 2015
1-Month
8.60"
(218.44mm)
4.63"
(117.60mm)
3.97"
(100.84mm)
123rd 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)
114th 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)
116th 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)
110th 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)
112th 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)
112th 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)
98th 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)
96th 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)
88th 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)
79th 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)
70th 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)
58th 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)
73rd 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)
86th 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)
33rd Driest Driest since: 2009 1930
92nd 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)
82nd 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)
73rd 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 November 2021, retrieved on December 3, 2021 from https://www.ncdc.noaa.gov/cag/