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


West Climate Region

Precipitation Rankings, May 2021

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 2021
1-Month
0.34"
(8.64mm)
0.92"
(23.37mm)
-0.58"
(-14.73mm)
12th Driest Driest since: 2012 1924
116th Wettest Wettest since: 2020 1998
Ties: 1966
Apr–May 2021
2-Month
0.69"
(17.53mm)
2.26"
(57.40mm)
-1.57"
(-39.87mm)
4th Driest Driest since: 1985 1909
124th Wettest Wettest since: 2020 1896
Mar–May 2021
3-Month
2.08"
(52.83mm)
4.59"
(116.59mm)
-2.51"
(-63.76mm)
6th Driest Driest since: 2008 2008
122nd Wettest Wettest since: 2020 1995
Feb–May 2021
4-Month
3.24"
(82.30mm)
7.31"
(185.67mm)
-4.07"
(-103.37mm)
4th Driest Driest since: 2013 1997
124th Wettest Wettest since: 2020 1998
Jan–May 2021
5-Month
5.78"
(146.81mm)
10.29"
(261.37mm)
-4.51"
(-114.56mm)
14th Driest Driest since: 2015 2013
114th Wettest Wettest since: 2020 1998
Dec 2020–May 2021
6-Month
7.10"
(180.34mm)
12.84"
(326.14mm)
-5.74"
(-145.80mm)
6th Driest Driest since: 1985 1924
121st Wettest Wettest since: 2020 1995
Nov 2020–May 2021
7-Month
8.10"
(205.74mm)
14.71"
(373.63mm)
-6.61"
(-167.89mm)
4th Driest Driest since: 1977 1977
123rd Wettest Wettest since: 2020 1995
Oct 2020–May 2021
8-Month
8.15"
(207.01mm)
15.74"
(399.80mm)
-7.59"
(-192.79mm)
3rd Driest Driest since: 1977 1977
124th Wettest Wettest since: 2020 1983
Sep 2020–May 2021
9-Month
8.20"
(208.28mm)
16.23"
(412.24mm)
-8.03"
(-203.96mm)
1st Driest Driest to Date 2021
126th Wettest Wettest since: 2020 1983
Aug 2020–May 2021
10-Month
8.31"
(211.07mm)
16.62"
(422.15mm)
-8.31"
(-211.08mm)
1st Driest Driest to Date 2021
126th Wettest Wettest since: 2020 1983
Jul 2020–May 2021
11-Month
8.38"
(212.85mm)
16.95"
(430.53mm)
-8.57"
(-217.68mm)
1st Driest Driest to Date 2021
126th Wettest Wettest since: 2020 1983
Jun 2020–May 2021
12-Month
8.70"
(220.98mm)
17.44"
(442.98mm)
-8.74"
(-222.00mm)
1st Driest Driest to Date 2021
126th Wettest Wettest since: 2020 1983
Dec 2019–May 2021
18-Month
18.76"
(476.50mm)
30.25"
(768.35mm)
-11.49"
(-291.85mm)
2nd Driest Driest since: 1977 1977
124th Wettest Wettest since: 2020 1983
Jun 2019–May 2021
24-Month
21.42"
(544.07mm)
34.89"
(886.21mm)
-13.47"
(-342.14mm)
1st Driest Driest to Date 2021
125th Wettest Wettest since: 2020 1983
Jun 2018–May 2021
36-Month
43.40"
(1,102.36mm)
52.30"
(1,328.42mm)
-8.90"
(-226.06mm)
20th Driest Driest since: 2015 2014
105th Wettest Wettest since: 2020 1984
Jun 2017–May 2021
48-Month
56.94"
(1,446.28mm)
69.56"
(1,766.82mm)
-12.62"
(-320.54mm)
11th Driest Driest since: 2015 2015
113th Wettest Wettest since: 2020 1998
Jun 2016–May 2021
60-Month
82.39"
(2,092.71mm)
86.83"
(2,205.48mm)
-4.44"
(-112.77mm)
49th Driest Driest since: 2016 1933
74th Wettest Wettest since: 2020 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published July 2021, retrieved on August 2, 2021 from https://www.ncdc.noaa.gov/cag/