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 2019. For more information, please see Climatological Rankings.


West Climate Region

Precipitation Rankings, December 2018

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2018)
Wettest/Driest
Since
Record
December 2018
1-Month
1.79"
(45.47mm)
2.55"
(64.77mm)
-0.76"
(-19.30mm)
41st Driest Driest since: 2017 1989
84th Wettest Wettest since: 2016 1955
Nov–Dec 2018
2-Month
3.77"
(95.76mm)
4.39"
(111.51mm)
-0.62"
(-15.75mm)
51st Driest Driest since: 2017 1956
74th Wettest Wettest since: 2016 1983
Oct–Dec 2018
3-Month
4.63"
(117.60mm)
5.42"
(137.67mm)
-0.79"
(-20.07mm)
51st Driest Driest since: 2017 1976
74th Wettest Wettest since: 2016 1983
Sep–Dec 2018
4-Month
4.68"
(118.87mm)
5.92"
(150.37mm)
-1.24"
(-31.50mm)
40th Driest Driest since: 2017 1917
85th Wettest Wettest since: 2016 1983
Ties: 1910, 1948
Aug–Dec 2018
5-Month
4.79"
(121.67mm)
6.31"
(160.27mm)
-1.52"
(-38.60mm)
37th Driest Driest since: 2017 1917
88th Wettest Wettest since: 2016 1983
Jul–Dec 2018
6-Month
5.21"
(132.33mm)
6.63"
(168.40mm)
-1.42"
(-36.07mm)
42nd Driest Driest since: 2017 1917
83rd Wettest Wettest since: 2016 1983
Jun–Dec 2018
7-Month
5.31"
(134.87mm)
7.12"
(180.85mm)
-1.81"
(-45.98mm)
33rd Driest Driest since: 2017 1917
92nd Wettest Wettest since: 2016 1983
May–Dec 2018
8-Month
6.31"
(160.27mm)
8.04"
(204.22mm)
-1.73"
(-43.95mm)
37th Driest Driest since: 2017 1959
88th Wettest Wettest since: 2016 1983
Apr–Dec 2018
9-Month
7.92"
(201.17mm)
9.38"
(238.25mm)
-1.46"
(-37.08mm)
43rd Driest Driest since: 2017 1959
82nd Wettest Wettest since: 2016 1983
Ties: 2009
Mar–Dec 2018
10-Month
11.60"
(294.64mm)
11.71"
(297.43mm)
-0.11"
(-2.79mm)
64th Driest Driest since: 2017 1959
61st Wettest Wettest since: 2016 1983
Feb–Dec 2018
11-Month
12.11"
(307.59mm)
14.43"
(366.52mm)
-2.32"
(-58.93mm)
36th Driest Driest since: 2013 2013
89th Wettest Wettest since: 2017 1983
Jan–Dec 2018
12-Month
14.46"
(367.28mm)
17.41"
(442.21mm)
-2.95"
(-74.93mm)
37th Driest Driest since: 2015 2013
88th Wettest Wettest since: 2017 1983
Jul 2017–Dec 2018
18-Month
18.48"
(469.39mm)
24.07"
(611.38mm)
-5.59"
(-141.99mm)
15th Driest Driest since: 2013 1959
109th Wettest Wettest since: 2017 1983
Jan 2017–Dec 2018
24-Month
35.63"
(905.00mm)
34.81"
(884.17mm)
0.82"
(20.83mm)
74th Driest Driest since: 2016 1929
50th Wettest Wettest since: 2017 1983
Jan 2016–Dec 2018
36-Month
55.37"
(1,406.40mm)
52.26"
(1,327.40mm)
3.11"
(79.00mm)
86th Driest Driest since: 2017 2015
37th Wettest Wettest since: 2012 1983
Jan 2015–Dec 2018
48-Month
68.88"
(1,749.55mm)
69.53"
(1,766.06mm)
-0.65"
(-16.51mm)
67th Driest Driest since: 2016 1949
55th Wettest Wettest since: 2017 1983
Jan 2014–Dec 2018
60-Month
84.68"
(2,150.87mm)
86.83"
(2,205.48mm)
-2.15"
(-54.61mm)
62nd Driest Driest since: 2017 1932
59th Wettest Wettest since: 2007 1983

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published November 2019, retrieved on December 7, 2019 from https://www.ncdc.noaa.gov/cag/