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


Southwest Climate Region

Precipitation Rankings, September 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
September 2021
1-Month
1.19"
(30.23mm)
1.36"
(34.54mm)
-0.17"
(-4.31mm)
52nd Driest Driest since: 2020 1953, 1956
76th Wettest Wettest since: 2019 2013
Ties: 2009, 2012
Aug–Sep 2021
2-Month
3.22"
(81.79mm)
3.38"
(85.85mm)
-0.16"
(-4.06mm)
57th Driest Driest since: 2020 2020
71st Wettest Wettest since: 2017 2013
Jul–Sep 2021
3-Month
5.96"
(151.38mm)
5.25"
(133.35mm)
0.71"
(18.03mm)
100th Driest Driest since: 2020 2020
28th Wettest Wettest since: 2017 2013
Jun–Sep 2021
4-Month
6.85"
(173.99mm)
6.19"
(157.23mm)
0.66"
(16.76mm)
100th Driest Driest since: 2020 2020
28th Wettest Wettest since: 2014 1927
May–Sep 2021
5-Month
7.97"
(202.44mm)
7.30"
(185.42mm)
0.67"
(17.02mm)
92nd Driest Driest since: 2020 2020
36th Wettest Wettest since: 2015 1941
Apr–Sep 2021
6-Month
8.52"
(216.41mm)
8.36"
(212.34mm)
0.16"
(4.07mm)
77th Driest Driest since: 2020 2020
51st Wettest Wettest since: 2017 1941
Mar–Sep 2021
7-Month
9.61"
(244.09mm)
9.51"
(241.55mm)
0.10"
(2.54mm)
78th Driest Driest since: 2020 1956
50th Wettest Wettest since: 2017 1941
Feb–Sep 2021
8-Month
10.25"
(260.35mm)
10.51"
(266.95mm)
-0.26"
(-6.60mm)
64th Driest Driest since: 2020 1956
64th Wettest Wettest since: 2019 1941
Jan–Sep 2021
9-Month
11.07"
(281.18mm)
11.50"
(292.10mm)
-0.43"
(-10.92mm)
58th Driest Driest since: 2020 1956
70th Wettest Wettest since: 2019 1941
Dec 2020–Sep 2021
10-Month
11.63"
(295.40mm)
12.51"
(317.75mm)
-0.88"
(-22.35mm)
47th Driest Driest since: 2020 1956
80th Wettest Wettest since: 2019 1941
Nov 2020–Sep 2021
11-Month
12.13"
(308.10mm)
13.40"
(340.36mm)
-1.27"
(-32.26mm)
46th Driest Driest since: 2020 1956
81st Wettest Wettest since: 2019 1941
Oct 2020–Sep 2021
12-Month
12.53"
(318.26mm)
14.53"
(369.06mm)
-2.00"
(-50.80mm)
28th Driest Driest since: 2020 1956
99th Wettest Wettest since: 2019 1941
Apr 2020–Sep 2021
18-Month
16.51"
(419.35mm)
22.92"
(582.17mm)
-6.41"
(-162.82mm)
1st Driest Driest to Date 2021
126th Wettest Wettest since: 2020 1941
Oct 2019–Sep 2021
24-Month
23.51"
(597.15mm)
29.08"
(738.63mm)
-5.57"
(-141.48mm)
7th Driest Driest since: 2003 1956
119th Wettest Wettest since: 2020 1942
Oct 2018–Sep 2021
36-Month
39.47"
(1,002.54mm)
43.57"
(1,106.68mm)
-4.10"
(-104.14mm)
28th Driest Driest since: 2020 1956
97th Wettest Wettest since: 2019 1907
Oct 2017–Sep 2021
48-Month
49.32"
(1,252.73mm)
58.05"
(1,474.47mm)
-8.73"
(-221.74mm)
6th Driest Driest since: 2003 1956
118th Wettest Wettest since: 2020 1986
Oct 2016–Sep 2021
60-Month
65.43"
(1,661.92mm)
72.53"
(1,842.26mm)
-7.10"
(-180.34mm)
11th Driest Driest since: 2004 1957
112th Wettest Wettest since: 2020 1986

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published August 2022, retrieved on August 17, 2022 from https://www.ncei.noaa.gov/cag/