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, April 2018

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
April 2018
1-Month
1.61"
(40.89mm)
1.33"
(33.78mm)
0.28"
(7.11mm)
90th Driest Driest since: 2016 1909
36th Wettest Wettest since: 2017 1935
Mar–Apr 2018
2-Month
5.29"
(134.37mm)
3.67"
(93.22mm)
1.62"
(41.15mm)
105th Driest Driest since: 2017 2008
21st Wettest Wettest since: 2011 1983
Feb–Apr 2018
3-Month
5.80"
(147.32mm)
6.39"
(162.31mm)
-0.59"
(-14.99mm)
58th Driest Driest since: 2016 1997
68th Wettest Wettest since: 2017 1983
Jan–Apr 2018
4-Month
8.15"
(207.01mm)
9.37"
(238.00mm)
-1.22"
(-30.99mm)
53rd Driest Driest since: 2015 2013
73rd Wettest Wettest since: 2017 1995
Dec 2017–Apr 2018
5-Month
8.41"
(213.61mm)
11.92"
(302.77mm)
-3.51"
(-89.16mm)
23rd Driest Driest since: 2015 1977
102nd Wettest Wettest since: 2017 1978
Ties: 2012
Nov 2017–Apr 2018
6-Month
10.52"
(267.21mm)
13.79"
(350.27mm)
-3.27"
(-83.06mm)
28th Driest Driest since: 2015 1977
97th Wettest Wettest since: 2017 1983
Oct 2017–Apr 2018
7-Month
10.79"
(274.07mm)
14.82"
(376.43mm)
-4.03"
(-102.36mm)
22nd Driest Driest since: 2015 1977
103rd Wettest Wettest since: 2017 1983
Sep 2017–Apr 2018
8-Month
11.44"
(290.58mm)
15.31"
(388.87mm)
-3.87"
(-98.29mm)
24th Driest Driest since: 2015 1977
101st Wettest Wettest since: 2017 1983
Aug 2017–Apr 2018
9-Month
11.86"
(301.24mm)
15.70"
(398.78mm)
-3.84"
(-97.54mm)
27th Driest Driest since: 2014 1977
98th Wettest Wettest since: 2017 1983
Ties: 1961
Jul 2017–Apr 2018
10-Month
12.17"
(309.12mm)
16.03"
(407.16mm)
-3.86"
(-98.04mm)
28th Driest Driest since: 2014 1977
97th Wettest Wettest since: 2017 1983
Jun 2017–Apr 2018
11-Month
12.54"
(318.52mm)
16.52"
(419.61mm)
-3.98"
(-101.09mm)
27th Driest Driest since: 2014 1977
98th Wettest Wettest since: 2017 1983
May 2017–Apr 2018
12-Month
13.01"
(330.45mm)
17.44"
(442.98mm)
-4.43"
(-112.53mm)
19th Driest Driest since: 2014 1977
106th Wettest Wettest since: 2017 1983
Nov 2016–Apr 2018
18-Month
34.24"
(869.70mm)
31.22"
(792.99mm)
3.02"
(76.71mm)
92nd Driest Driest since: 2016 1977
32nd Wettest Wettest since: 2017 1983
May 2016–Apr 2018
24-Month
38.85"
(986.79mm)
34.90"
(886.46mm)
3.95"
(100.33mm)
99th Driest Driest since: 2016 1977
25th Wettest Wettest since: 2017 1983
May 2015–Apr 2018
36-Month
58.53"
(1,486.66mm)
52.30"
(1,328.42mm)
6.23"
(158.24mm)
97th Driest Driest since: 2016 1931
26th Wettest Wettest since: 2017 1984
May 2014–Apr 2018
48-Month
71.73"
(1,821.94mm)
69.56"
(1,766.82mm)
2.17"
(55.12mm)
78th Driest Driest since: 2017 2015
44th Wettest Wettest since: 2007 1998
May 2013–Apr 2018
60-Month
83.03"
(2,108.96mm)
86.83"
(2,205.48mm)
-3.80"
(-96.52mm)
52nd Driest Driest since: 2017 1933
69th Wettest Wettest since: 2008 1999

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/