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 December 2021. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, December 2019

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 2019
1-Month
3.67"
(93.22mm)
4.63"
(117.60mm)
-0.96"
(-24.38mm)
39th Driest Driest since: 2017 1976
89th Wettest Wettest since: 2018 1964
Nov–Dec 2019
2-Month
4.92"
(124.97mm)
8.97"
(227.84mm)
-4.05"
(-102.87mm)
8th Driest Driest since: 2013 1976
120th Wettest Wettest since: 2018 1996
Oct–Dec 2019
3-Month
7.10"
(180.34mm)
11.51"
(292.35mm)
-4.41"
(-112.01mm)
9th Driest Driest since: 2013 1976
119th Wettest Wettest since: 2018 1996
Sep–Dec 2019
4-Month
9.84"
(249.94mm)
12.93"
(328.42mm)
-3.09"
(-78.48mm)
17th Driest Driest since: 2011 1976
111th Wettest Wettest since: 2018 1996
Aug–Dec 2019
5-Month
10.56"
(268.22mm)
13.73"
(348.74mm)
-3.17"
(-80.52mm)
17th Driest Driest since: 2011 1936
111th Wettest Wettest since: 2018 1996
Jul–Dec 2019
6-Month
11.09"
(281.69mm)
14.46"
(367.28mm)
-3.37"
(-85.59mm)
16th Driest Driest since: 2011 1936
112th Wettest Wettest since: 2018 1996
Jun–Dec 2019
7-Month
12.00"
(304.80mm)
16.18"
(410.97mm)
-4.18"
(-106.17mm)
14th Driest Driest since: 2011 1976
114th Wettest Wettest since: 2018 1996
May–Dec 2019
8-Month
14.45"
(367.03mm)
18.32"
(465.33mm)
-3.87"
(-98.30mm)
17th Driest Driest since: 2018 1935
111th Wettest Wettest since: 2017 1996
Apr–Dec 2019
9-Month
18.34"
(465.84mm)
20.67"
(525.02mm)
-2.33"
(-59.18mm)
35th Driest Driest since: 2018 1976
93rd Wettest Wettest since: 2017 1996
Ties: 1986
Mar–Dec 2019
10-Month
20.00"
(508.00mm)
23.93"
(607.82mm)
-3.93"
(-99.82mm)
21st Driest Driest since: 2002 1976
107th Wettest Wettest since: 2018 1996
Feb–Dec 2019
11-Month
25.31"
(642.87mm)
27.54"
(699.52mm)
-2.23"
(-56.65mm)
40th Driest Driest since: 2018 1935
88th Wettest Wettest since: 2017 1996
Jan–Dec 2019
12-Month
28.65"
(727.71mm)
32.07"
(814.58mm)
-3.42"
(-86.87mm)
30th Driest Driest since: 2018 1929
98th Wettest Wettest since: 2017 1996
Jul 2018–Dec 2019
18-Month
39.91"
(1,013.71mm)
46.58"
(1,183.13mm)
-6.67"
(-169.42mm)
14th Driest Driest since: 2001 1929
113th Wettest Wettest since: 2018 1996
Jan 2018–Dec 2019
24-Month
57.21"
(1,453.13mm)
64.19"
(1,630.43mm)
-6.98"
(-177.30mm)
17th Driest Driest since: 2002 1930
110th Wettest Wettest since: 2018 1996
Jan 2017–Dec 2019
36-Month
94.35"
(2,396.49mm)
96.33"
(2,446.78mm)
-1.98"
(-50.29mm)
47th Driest Driest since: 2015 1930
79th Wettest Wettest since: 2018 1997
Jan 2016–Dec 2019
48-Month
129.66"
(3,293.36mm)
128.33"
(3,259.58mm)
1.33"
(33.78mm)
77th Driest Driest since: 2016 1931
48th Wettest Wettest since: 2018 1998
Jan 2015–Dec 2019
60-Month
160.80"
(4,084.32mm)
160.34"
(4,072.64mm)
0.46"
(11.68mm)
64th Driest Driest since: 2011 1932
60th Wettest Wettest since: 2018 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published January 2022, retrieved on January 18, 2022 from https://www.ncdc.noaa.gov/cag/