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


Southwest Climate Region

Precipitation Rankings, May 2021

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 2021
1-Month
1.12"
(28.45mm)
1.11"
(28.19mm)
0.01"
(0.26mm)
71st Driest Driest since: 2020 1974
57th Wettest Wettest since: 2019 2015
Ties: 1944, 1975
Apr–May 2021
2-Month
1.67"
(42.42mm)
2.17"
(55.12mm)
-0.50"
(-12.70mm)
38th Driest Driest since: 2020 2002
90th Wettest Wettest since: 2019 1941
Ties: 1902
Mar–May 2021
3-Month
2.76"
(70.10mm)
3.33"
(84.58mm)
-0.57"
(-14.48mm)
35th Driest Driest since: 2020 2002
93rd Wettest Wettest since: 2019 1941
Ties: 1933, 2003
Feb–May 2021
4-Month
3.39"
(86.11mm)
4.33"
(109.98mm)
-0.94"
(-23.87mm)
29th Driest Driest since: 2018 2002
99th Wettest Wettest since: 2020 1905
Ties: 1933, 1939, 1970
Jan–May 2021
5-Month
4.21"
(106.93mm)
5.31"
(134.87mm)
-1.10"
(-27.94mm)
36th Driest Driest since: 2020 1972
92nd Wettest Wettest since: 2019 1905
Dec 2020–May 2021
6-Month
4.77"
(121.16mm)
6.32"
(160.53mm)
-1.55"
(-39.37mm)
24th Driest Driest since: 2018 2002
103rd Wettest Wettest since: 2020 1905
Ties: 2013
Nov 2020–May 2021
7-Month
5.27"
(133.86mm)
7.21"
(183.13mm)
-1.94"
(-49.27mm)
22nd Driest Driest since: 2018 2002
105th Wettest Wettest since: 2020 1941
Oct 2020–May 2021
8-Month
5.67"
(144.02mm)
8.34"
(211.84mm)
-2.67"
(-67.82mm)
11th Driest Driest since: 2018 2002
116th Wettest Wettest since: 2020 1941
Sep 2020–May 2021
9-Month
6.22"
(157.99mm)
9.71"
(246.63mm)
-3.49"
(-88.64mm)
3rd Driest Driest since: 2002 2002
124th Wettest Wettest since: 2020 1941
Ties: 1904
Aug 2020–May 2021
10-Month
6.81"
(172.97mm)
11.72"
(297.69mm)
-4.91"
(-124.72mm)
2nd Driest Driest since: 2002 2002
125th Wettest Wettest since: 2020 1941
Jul 2020–May 2021
11-Month
8.17"
(207.52mm)
13.59"
(345.19mm)
-5.42"
(-137.67mm)
1st Driest Driest to Date 2021
126th Wettest Wettest since: 2020 1941
Jun 2020–May 2021
12-Month
8.78"
(223.01mm)
14.53"
(369.06mm)
-5.75"
(-146.05mm)
1st Driest Driest to Date 2021
126th Wettest Wettest since: 2020 1905
Dec 2019–May 2021
18-Month
14.06"
(357.12mm)
20.86"
(529.84mm)
-6.80"
(-172.72mm)
1st Driest Driest to Date 2021
125th Wettest Wettest since: 2020 1942
Jun 2019–May 2021
24-Month
21.01"
(533.65mm)
29.05"
(737.87mm)
-8.04"
(-204.22mm)
1st Driest Driest to Date 2021
125th Wettest Wettest since: 2020 1942
Jun 2018–May 2021
36-Month
37.86"
(961.64mm)
43.54"
(1,105.92mm)
-5.68"
(-144.28mm)
13th Driest Driest since: 2014 1904
112th Wettest Wettest since: 2020 1907
Jun 2017–May 2021
48-Month
49.05"
(1,245.87mm)
58.01"
(1,473.45mm)
-8.96"
(-227.58mm)
7th Driest Driest since: 2004 1904
117th Wettest Wettest since: 2020 1986
Jun 2016–May 2021
60-Month
64.50"
(1,638.30mm)
72.48"
(1,840.99mm)
-7.98"
(-202.69mm)
11th Driest Driest since: 2013 1957
112th Wettest Wettest since: 2020 1987

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published January 2022, retrieved on January 20, 2022 from https://www.ncdc.noaa.gov/cag/