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, July 1909

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
July 1909
1-Month
1.97"
(50.04mm)
1.87"
(47.50mm)
0.10"
(2.54mm)
73rd Driest
Driest since:
2003
56th Wettest
Wettest since:
1914
Jun–Jul 1909
2-Month
2.67"
(67.82mm)
2.81"
(71.37mm)
-0.14"
(-3.55mm)
56th Driest
Driest since:
1980
73rd Wettest
Wettest since:
1921
Ties: 2007
May–Jul 1909
3-Month
3.26"
(82.80mm)
3.93"
(99.82mm)
-0.67"
(-17.02mm)
30th Driest
Driest since:
2002
99th Wettest
Wettest since:
2015
Apr–Jul 1909
4-Month
4.04"
(102.62mm)
4.99"
(126.75mm)
-0.95"
(-24.13mm)
21st Driest
Driest since:
2002
108th Wettest
Wettest since:
1914
Mar–Jul 1909
5-Month
5.33"
(135.38mm)
6.14"
(155.96mm)
-0.81"
(-20.58mm)
34th Driest
Driest since:
2002
95th Wettest
Wettest since:
1941
Feb–Jul 1909
6-Month
6.59"
(167.39mm)
7.14"
(181.36mm)
-0.55"
(-13.97mm)
51st Driest
Driest since:
2002
78th Wettest
Wettest since:
1941
Jan–Jul 1909
7-Month
7.94"
(201.68mm)
8.12"
(206.25mm)
-0.18"
(-4.57mm)
67th Driest
Driest since:
2002
62nd Wettest
Wettest since:
1905
Dec 1908–Jul 1909
8-Month
9.57"
(243.08mm)
9.13"
(231.90mm)
0.44"
(11.18mm)
83rd Driest
Driest since:
2002
45th Wettest
Wettest since:
1941
Nov 1908–Jul 1909
9-Month
10.41"
(264.41mm)
10.02"
(254.51mm)
0.39"
(9.90mm)
78th Driest
Driest since:
2002
50th Wettest
Wettest since:
1941
Oct 1908–Jul 1909
10-Month
11.78"
(299.21mm)
11.15"
(283.21mm)
0.63"
(16.00mm)
81st Driest
Driest since:
2002
47th Wettest
Wettest since:
1941
Sep 1908–Jul 1909
11-Month
12.78"
(324.61mm)
12.52"
(318.01mm)
0.26"
(6.60mm)
76th Driest
Driest since:
2002
52nd Wettest
Wettest since:
1941
Aug 1908–Jul 1909
12-Month
15.23"
(386.84mm)
14.53"
(369.06mm)
0.70"
(17.78mm)
83rd Driest
Driest since:
2002
45th Wettest
Wettest since:
1941
Feb 1908–Jul 1909
18-Month
22.72"
(577.09mm)
21.67"
(550.42mm)
1.05"
(26.67mm)
89th Driest
Driest since:
2002
39th Wettest
Wettest since:
1942
Aug 1907–Jul 1909
24-Month
30.27"
(768.86mm)
29.06"
(738.12mm)
1.21"
(30.74mm)
91st Driest
Driest since:
2003
36th Wettest
Wettest since:
1942
Aug 1906–Jul 1909
36-Month
47.84"
(1,215.14mm)
43.55"
(1,106.17mm)
4.29"
(108.97mm)
107th Driest
Driest since:
1956
19th Wettest
Wettest since:
1907
Aug 1905–Jul 1909
48-Month
64.77"
(1,645.16mm)
58.02"
(1,473.71mm)
6.75"
(171.45mm)
115th Driest
Driest since:
1956
10th Wettest
Wettest since:
1986
Aug 1904–Jul 1909
60-Month
84.46"
(2,145.28mm)
72.50"
(1,841.50mm)
11.96"
(303.78mm)
121st Driest
Driest since:
1904
3rd Wettest
Wettest to Date
1987

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