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.


Southwest Climate Region

Precipitation Rankings, September 2020

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 2020
1-Month
0.55"
(13.97mm)
1.36"
(34.54mm)
-0.81"
(-20.57mm)
9th Driest Driest since: 1979 1953, 1956
119th Wettest Wettest since: 2019 2013
Aug–Sep 2020
2-Month
1.14"
(28.96mm)
3.38"
(85.85mm)
-2.24"
(-56.89mm)
1st Driest Driest since: 2020 2020
127th Wettest Wettest since: 2019 2013
Jul–Sep 2020
3-Month
2.50"
(63.50mm)
5.25"
(133.35mm)
-2.75"
(-69.85mm)
1st Driest Driest since: 2020 2020
127th Wettest Wettest since: 2019 2013
Jun–Sep 2020
4-Month
3.11"
(78.99mm)
6.19"
(157.23mm)
-3.08"
(-78.24mm)
1st Driest Driest since: 2020 2020
127th Wettest Wettest since: 2019 1927
May–Sep 2020
5-Month
3.52"
(89.41mm)
7.30"
(185.42mm)
-3.78"
(-96.01mm)
1st Driest Driest since: 2020 2020
127th Wettest Wettest since: 2019 1941
Apr–Sep 2020
6-Month
3.98"
(101.09mm)
8.36"
(212.34mm)
-4.38"
(-111.25mm)
1st Driest Driest since: 2020 2020
127th Wettest Wettest since: 2019 1941
Mar–Sep 2020
7-Month
5.60"
(142.24mm)
9.51"
(241.55mm)
-3.91"
(-99.31mm)
2nd Driest Driest since: 1956 1956
126th Wettest Wettest since: 2019 1941
Feb–Sep 2020
8-Month
6.54"
(166.12mm)
10.52"
(267.21mm)
-3.98"
(-101.09mm)
2nd Driest Driest since: 1956 1956
126th Wettest Wettest since: 2019 1941
Jan–Sep 2020
9-Month
7.14"
(181.36mm)
11.50"
(292.10mm)
-4.36"
(-110.74mm)
2nd Driest Driest since: 1956 1956
126th Wettest Wettest since: 2019 1941
Dec 2019–Sep 2020
10-Month
8.39"
(213.11mm)
12.51"
(317.75mm)
-4.12"
(-104.64mm)
3rd Driest Driest since: 2002 1956
124th Wettest Wettest since: 2019 1941
Nov 2019–Sep 2020
11-Month
10.34"
(262.64mm)
13.40"
(340.36mm)
-3.06"
(-77.72mm)
8th Driest Driest since: 2018 1956
119th Wettest Wettest since: 2019 1941
Oct 2019–Sep 2020
12-Month
10.98"
(278.89mm)
14.53"
(369.06mm)
-3.55"
(-90.17mm)
9th Driest Driest since: 2018 1956
118th Wettest Wettest since: 2019 1941
Apr 2019–Sep 2020
18-Month
18.17"
(461.52mm)
22.92"
(582.17mm)
-4.75"
(-120.65mm)
6th Driest Driest since: 2003 2021
121st Wettest Wettest since: 2019 1941
Oct 2018–Sep 2020
24-Month
26.94"
(684.28mm)
29.08"
(738.63mm)
-2.14"
(-54.35mm)
39th Driest Driest since: 2019 1956
87th Wettest Wettest since: 2017 1942
Oct 2017–Sep 2020
36-Month
36.79"
(934.47mm)
43.57"
(1,106.68mm)
-6.78"
(-172.21mm)
10th Driest Driest since: 2004 1956
115th Wettest Wettest since: 2019 1907
Oct 2016–Sep 2020
48-Month
52.90"
(1,343.66mm)
58.05"
(1,474.47mm)
-5.15"
(-130.81mm)
20th Driest Driest since: 2014 1956
104th Wettest Wettest since: 2019 1986
Oct 2015–Sep 2020
60-Month
68.00"
(1,727.20mm)
72.53"
(1,842.26mm)
-4.53"
(-115.06mm)
33rd Driest Driest since: 2014 1957
90th Wettest Wettest since: 2019 1986
Ties: 1936

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Precipitation, published September 2022, retrieved on September 28, 2022 from https://www.ncdc.noaa.gov/cag/