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 May 2022. For more information, please see Climatological Rankings.


West Climate Region

Precipitation Rankings, April 2021

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 2021
1-Month
0.34"
(8.64mm)
1.33"
(33.78mm)
-0.99"
(-25.14mm)
6th Driest Driest since: 2008 1909
123rd Wettest Wettest since: 2020 1935
Mar–Apr 2021
2-Month
1.73"
(43.94mm)
3.67"
(93.22mm)
-1.94"
(-49.28mm)
12th Driest Driest since: 2015 2008
117th Wettest Wettest since: 2020 1983
Feb–Apr 2021
3-Month
2.89"
(73.41mm)
6.39"
(162.31mm)
-3.50"
(-88.90mm)
8th Driest Driest since: 2013 1997
121st Wettest Wettest since: 2020 1983
Jan–Apr 2021
4-Month
5.43"
(137.92mm)
9.37"
(238.00mm)
-3.94"
(-100.08mm)
17th Driest Driest since: 2015 2022
112th Wettest Wettest since: 2020 1995
Dec 2020–Apr 2021
5-Month
6.75"
(171.45mm)
11.92"
(302.77mm)
-5.17"
(-131.32mm)
9th Driest Driest since: 1990 1977
119th Wettest Wettest since: 2020 1978
Nov 2020–Apr 2021
6-Month
7.75"
(196.85mm)
13.79"
(350.27mm)
-6.04"
(-153.42mm)
5th Driest Driest since: 1990 1977
123rd Wettest Wettest since: 2020 1983
Oct 2020–Apr 2021
7-Month
7.80"
(198.12mm)
14.82"
(376.43mm)
-7.02"
(-178.31mm)
3rd Driest Driest since: 1977 1977
125th Wettest Wettest since: 2020 1983
Sep 2020–Apr 2021
8-Month
7.85"
(199.39mm)
15.31"
(388.87mm)
-7.46"
(-189.48mm)
2nd Driest Driest since: 1977 1977
126th Wettest Wettest since: 2020 1983
Aug 2020–Apr 2021
9-Month
7.96"
(202.18mm)
15.70"
(398.78mm)
-7.74"
(-196.60mm)
2nd Driest Driest since: 1977 1977
126th Wettest Wettest since: 2020 1983
Jul 2020–Apr 2021
10-Month
8.03"
(203.96mm)
16.03"
(407.16mm)
-8.00"
(-203.20mm)
1st Driest Driest to Date 2021
127th Wettest Wettest since: 2020 1983
Jun 2020–Apr 2021
11-Month
8.35"
(212.09mm)
16.52"
(419.61mm)
-8.17"
(-207.52mm)
1st Driest Driest to Date 2021
127th Wettest Wettest since: 2020 1983
May 2020–Apr 2021
12-Month
9.32"
(236.73mm)
17.44"
(442.98mm)
-8.12"
(-206.25mm)
2nd Driest Driest since: 1977 1977
126th Wettest Wettest since: 2020 1983
Nov 2019–Apr 2021
18-Month
19.77"
(502.16mm)
31.22"
(792.99mm)
-11.45"
(-290.83mm)
2nd Driest Driest since: 1977 1977
125th Wettest Wettest since: 2020 1983
May 2019–Apr 2021
24-Month
23.62"
(599.95mm)
34.90"
(886.46mm)
-11.28"
(-286.51mm)
3rd Driest Driest since: 1977 1977
124th Wettest Wettest since: 2020 1983
May 2018–Apr 2021
36-Month
44.06"
(1,119.12mm)
52.30"
(1,328.42mm)
-8.24"
(-209.30mm)
24th Driest Driest since: 2015 2022
102nd Wettest Wettest since: 2020 1984
May 2017–Apr 2021
48-Month
57.07"
(1,449.58mm)
69.56"
(1,766.82mm)
-12.49"
(-317.24mm)
14th Driest Driest since: 2016 2015
111th Wettest Wettest since: 2020 1998
May 2016–Apr 2021
60-Month
82.91"
(2,105.91mm)
86.83"
(2,205.48mm)
-3.92"
(-99.57mm)
51st Driest Driest since: 2017 1933
73rd Wettest Wettest since: 2020 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published June 2022, retrieved on July 6, 2022 from https://www.ncei.noaa.gov/cag/