Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Southwest Climate Region

Precipitation Rankings, September 2013

View Period (Months):
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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
September 2013
1-Month
3.21"
(81.53mm)
1.36"
(34.54mm)
1.85"
(46.99mm)
128th Driest
Driest since:
1953, 1956
1st Wettest
Wettest to Date
2013
Aug–Sep 2013
2-Month
5.30"
(134.62mm)
3.38"
(85.85mm)
1.92"
(48.77mm)
128th Driest
Driest since:
2020
1st Wettest
Wettest to Date
2013
Jul–Sep 2013
3-Month
7.92"
(201.17mm)
5.25"
(133.35mm)
2.67"
(67.82mm)
128th Driest
Driest since:
2020
1st Wettest
Wettest to Date
2013
Jun–Sep 2013
4-Month
8.28"
(210.31mm)
6.19"
(157.23mm)
2.09"
(53.08mm)
124th Driest
Driest since:
2020
5th Wettest
Wettest since:
1927
May–Sep 2013
5-Month
8.93"
(226.82mm)
7.30"
(185.42mm)
1.63"
(41.40mm)
115th Driest
Driest since:
2020
14th Wettest
Wettest since:
1941
Apr–Sep 2013
6-Month
9.70"
(246.38mm)
8.36"
(212.34mm)
1.34"
(34.04mm)
109th Driest
Driest since:
2020
20th Wettest
Wettest since:
1941
Mar–Sep 2013
7-Month
10.32"
(262.13mm)
9.51"
(241.55mm)
0.81"
(20.58mm)
93rd Driest
Driest since:
1956
36th Wettest
Wettest since:
1941
Feb–Sep 2013
8-Month
10.89"
(276.61mm)
10.51"
(266.95mm)
0.38"
(9.66mm)
83rd Driest
Driest since:
1956
46th Wettest
Wettest since:
1941
Ties: 1907, 1949
Jan–Sep 2013
9-Month
11.81"
(299.97mm)
11.50"
(292.10mm)
0.31"
(7.87mm)
78th Driest
Driest since:
1956
51st Wettest
Wettest since:
1941
Dec 2012–Sep 2013
10-Month
13.05"
(331.47mm)
12.51"
(317.75mm)
0.54"
(13.72mm)
83rd Driest
Driest since:
1956
45th Wettest
Wettest since:
1941
Ties: 1958
Nov 2012–Sep 2013
11-Month
13.40"
(340.36mm)
13.40"
(340.36mm)
0.00"
(0.00mm)
74th Driest
Driest since:
1956
54th Wettest
Wettest since:
1941
Oct 2012–Sep 2013
12-Month
13.91"
(353.31mm)
14.53"
(369.06mm)
-0.62"
(-15.75mm)
59th Driest
Driest since:
1956
69th Wettest
Wettest since:
1941
Ties: 1966
Apr 2012–Sep 2013
18-Month
20.16"
(512.06mm)
22.92"
(582.17mm)
-2.76"
(-70.11mm)
23rd Driest
Driest since:
2021
105th Wettest
Wettest since:
1941
Oct 2011–Sep 2013
24-Month
25.20"
(640.08mm)
29.08"
(738.63mm)
-3.88"
(-98.55mm)
20th Driest
Driest since:
1956
107th Wettest
Wettest since:
1942
Oct 2010–Sep 2013
36-Month
38.35"
(974.09mm)
43.57"
(1,106.68mm)
-5.22"
(-132.59mm)
15th Driest
Driest since:
1956
111th Wettest
Wettest since:
1907
Oct 2009–Sep 2013
48-Month
53.14"
(1,349.76mm)
58.05"
(1,474.47mm)
-4.91"
(-124.71mm)
23rd Driest
Driest since:
1956
102nd Wettest
Wettest since:
1986
Oct 2008–Sep 2013
60-Month
66.01"
(1,676.65mm)
72.53"
(1,842.26mm)
-6.52"
(-165.61mm)
18th Driest
Driest since:
1957
106th Wettest
Wettest since:
1986

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