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


West Climate Region

Precipitation Rankings, May 2020

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
May 2020
1-Month
0.97"
(24.64mm)
0.92"
(23.37mm)
0.05"
(1.27mm)
80th Driest Driest since: 2017 1924
49th Wettest Wettest since: 2019 1998
Apr–May 2020
2-Month
2.42"
(61.47mm)
2.26"
(57.40mm)
0.16"
(4.07mm)
81st Driest Driest since: 2016 1909
48th Wettest Wettest since: 2019 1896
Mar–May 2020
3-Month
4.82"
(122.43mm)
4.59"
(116.59mm)
0.23"
(5.84mm)
76th Driest Driest since: 2017 2008
53rd Wettest Wettest since: 2019 1995
Feb–May 2020
4-Month
5.10"
(129.54mm)
7.31"
(185.67mm)
-2.21"
(-56.13mm)
29th Driest Driest since: 2015 1997
100th Wettest Wettest since: 2019 1998
Jan–May 2020
5-Month
6.60"
(167.64mm)
10.29"
(261.37mm)
-3.69"
(-93.73mm)
22nd Driest Driest since: 2015 2022
107th Wettest Wettest since: 2019 1998
Dec 2019–May 2020
6-Month
10.07"
(255.78mm)
12.84"
(326.14mm)
-2.77"
(-70.36mm)
35th Driest Driest since: 2018 1924
93rd Wettest Wettest since: 2019 1995
Nov 2019–May 2020
7-Month
11.42"
(290.07mm)
14.71"
(373.63mm)
-3.29"
(-83.56mm)
32nd Driest Driest since: 2015 1977
96th Wettest Wettest since: 2019 1995
Oct 2019–May 2020
8-Month
11.56"
(293.62mm)
15.74"
(399.80mm)
-4.18"
(-106.18mm)
23rd Driest Driest since: 2014 1977
105th Wettest Wettest since: 2019 1983
Sep 2019–May 2020
9-Month
12.24"
(310.90mm)
16.23"
(412.24mm)
-3.99"
(-101.34mm)
25th Driest Driest since: 2014 2021
103rd Wettest Wettest since: 2019 1983
Aug 2019–May 2020
10-Month
12.39"
(314.71mm)
16.62"
(422.15mm)
-4.23"
(-107.44mm)
19th Driest Driest since: 2014 2021
109th Wettest Wettest since: 2019 1983
Jul 2019–May 2020
11-Month
12.55"
(318.77mm)
16.95"
(430.53mm)
-4.40"
(-111.76mm)
18th Driest Driest since: 2014 2021
110th Wettest Wettest since: 2019 1983
Ties: 1990
Jun 2019–May 2020
12-Month
12.73"
(323.34mm)
17.44"
(442.98mm)
-4.71"
(-119.64mm)
16th Driest Driest since: 2014 2021
112th Wettest Wettest since: 2019 1983
Dec 2018–May 2020
18-Month
31.19"
(792.23mm)
30.25"
(768.35mm)
0.94"
(23.88mm)
81st Driest Driest since: 2016 1977
46th Wettest Wettest since: 2019 1983
Jun 2018–May 2020
24-Month
34.71"
(881.63mm)
34.89"
(886.21mm)
-0.18"
(-4.58mm)
67th Driest Driest since: 2016 2022
60th Wettest Wettest since: 2019 1983
Jun 2017–May 2020
36-Month
48.25"
(1,225.55mm)
52.30"
(1,328.42mm)
-4.05"
(-102.87mm)
45th Driest Driest since: 2016 2022
81st Wettest Wettest since: 2019 1984
Jun 2016–May 2020
48-Month
73.70"
(1,871.98mm)
69.56"
(1,766.82mm)
4.14"
(105.16mm)
92nd Driest Driest since: 2018 2015
33rd Wettest Wettest since: 2019 1998
Jun 2015–May 2020
60-Month
92.82"
(2,357.63mm)
86.83"
(2,205.48mm)
5.99"
(152.15mm)
95th Driest Driest since: 2018 1933
29th Wettest Wettest since: 2019 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Precipitation, published September 2022, retrieved on September 25, 2022 from https://www.ncdc.noaa.gov/cag/