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 1958

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 1958
1-Month
2.15"
(54.61mm)
1.36"
(34.54mm)
0.79"
(20.07mm)
116th Driest
Driest since:
1953, 1956
13th Wettest
Wettest since:
2013
Ties: 1985
Aug–Sep 1958
2-Month
4.00"
(101.60mm)
3.38"
(85.85mm)
0.62"
(15.75mm)
103rd Driest
Driest since:
2020
26th Wettest
Wettest since:
2013
Jul–Sep 1958
3-Month
5.45"
(138.43mm)
5.25"
(133.35mm)
0.20"
(5.08mm)
78th Driest
Driest since:
2020
51st Wettest
Wettest since:
2013
Ties: 1966
Jun–Sep 1958
4-Month
6.20"
(157.48mm)
6.19"
(157.23mm)
0.01"
(0.25mm)
73rd Driest
Driest since:
2020
56th Wettest
Wettest since:
1927
Ties: 1977
May–Sep 1958
5-Month
7.24"
(183.90mm)
7.30"
(185.42mm)
-0.06"
(-1.52mm)
68th Driest
Driest since:
2020
61st Wettest
Wettest since:
1941
Ties: 1933
Apr–Sep 1958
6-Month
8.46"
(214.88mm)
8.36"
(212.34mm)
0.10"
(2.54mm)
75th Driest
Driest since:
2020
54th Wettest
Wettest since:
1941
Ties: 1977
Mar–Sep 1958
7-Month
10.59"
(268.99mm)
9.51"
(241.55mm)
1.08"
(27.44mm)
100th Driest
Driest since:
1956
29th Wettest
Wettest since:
1941
Feb–Sep 1958
8-Month
11.90"
(302.26mm)
10.52"
(267.21mm)
1.38"
(35.05mm)
107th Driest
Driest since:
1956
22nd Wettest
Wettest since:
1941
Jan–Sep 1958
9-Month
12.53"
(318.26mm)
11.50"
(292.10mm)
1.03"
(26.16mm)
95th Driest
Driest since:
1956
34th Wettest
Wettest since:
1941
Ties: 1938
Dec 1957–Sep 1958
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: 2013
Nov 1957–Sep 1958
11-Month
14.50"
(368.30mm)
13.40"
(340.36mm)
1.10"
(27.94mm)
90th Driest
Driest since:
1956
38th Wettest
Wettest since:
1941
Oct 1957–Sep 1958
12-Month
16.96"
(430.78mm)
14.53"
(369.06mm)
2.43"
(61.72mm)
108th Driest
Driest since:
1956
20th Wettest
Wettest since:
1941
Ties: 1897
Apr 1957–Sep 1958
18-Month
27.06"
(687.32mm)
22.92"
(582.17mm)
4.14"
(105.15mm)
121st Driest
Driest since:
2021
7th Wettest
Wettest since:
1941
Oct 1956–Sep 1958
24-Month
32.40"
(822.96mm)
29.08"
(738.63mm)
3.32"
(84.33mm)
109th Driest
Driest since:
1956
18th Wettest
Wettest since:
1942
Oct 1955–Sep 1958
36-Month
41.29"
(1,048.77mm)
43.57"
(1,106.68mm)
-2.28"
(-57.91mm)
44th Driest
Driest since:
1956
82nd Wettest
Wettest since:
1907
Ties: 1965
Oct 1954–Sep 1958
48-Month
53.71"
(1,364.23mm)
58.05"
(1,474.47mm)
-4.34"
(-110.24mm)
28th Driest
Driest since:
1956
97th Wettest
Wettest since:
1986
Oct 1953–Sep 1958
60-Month
65.98"
(1,675.89mm)
72.53"
(1,842.26mm)
-6.55"
(-166.37mm)
17th Driest
Driest since:
1957
107th Wettest
Wettest since:
1986

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