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 1910

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1910
1-Month 		1.66"
(42.16mm)		 1.87"
(47.50mm)		 -0.21"
(-5.34mm)		 44th Driest
Driest since:
 2003
85th Wettest
Wettest since:
 1914
Jun–Jul 1910
2-Month 		2.32"
(58.93mm)		 2.81"
(71.37mm)		 -0.49"
(-12.44mm)		 35th Driest
Driest since:
 1980
94th Wettest
Wettest since:
 1921
Ties: 2011
May–Jul 1910
3-Month 		2.87"
(72.90mm)		 3.93"
(99.82mm)		 -1.06"
(-26.92mm)		 13th Driest
Driest since:
 2002
116th Wettest
Wettest since:
 2015
Apr–Jul 1910
4-Month 		3.58"
(90.93mm)		 4.99"
(126.75mm)		 -1.41"
(-35.82mm)		 12th Driest
Driest since:
 2002
117th Wettest
Wettest since:
 1914
Mar–Jul 1910
5-Month 		4.09"
(103.89mm)		 6.14"
(155.96mm)		 -2.05"
(-52.07mm)		 6th Driest
Driest since:
 2002
123rd Wettest
Wettest since:
 1941
Feb–Jul 1910
6-Month 		4.68"
(118.87mm)		 7.14"
(181.36mm)		 -2.46"
(-62.49mm)		 5th Driest
Driest since:
 2002
124th Wettest
Wettest since:
 1941
Jan–Jul 1910
7-Month 		5.64"
(143.26mm)		 8.12"
(206.25mm)		 -2.48"
(-62.99mm)		 7th Driest
Driest since:
 2002
122nd Wettest
Wettest since:
 1905
Dec 1909–Jul 1910
8-Month 		7.16"
(181.86mm)		 9.13"
(231.90mm)		 -1.97"
(-50.04mm)		 19th Driest
Driest since:
 2002
109th Wettest
Wettest since:
 1941
Nov 1909–Jul 1910
9-Month 		8.42"
(213.87mm)		 10.02"
(254.51mm)		 -1.60"
(-40.64mm)		 33rd Driest
Driest since:
 2002
95th Wettest
Wettest since:
 1941
Oct 1909–Jul 1910
10-Month 		8.85"
(224.79mm)		 11.15"
(283.21mm)		 -2.30"
(-58.42mm)		 20th Driest
Driest since:
 2002
108th Wettest
Wettest since:
 1941
Sep 1909–Jul 1910
11-Month 		10.54"
(267.72mm)		 12.52"
(318.01mm)		 -1.98"
(-50.29mm)		 29th Driest
Driest since:
 2002
99th Wettest
Wettest since:
 1941
Aug 1909–Jul 1910
12-Month 		13.68"
(347.47mm)		 14.53"
(369.06mm)		 -0.85"
(-21.59mm)		 51st Driest
Driest since:
 2002
77th Wettest
Wettest since:
 1941
Feb 1909–Jul 1910
18-Month 		20.27"
(514.86mm)		 21.67"
(550.42mm)		 -1.40"
(-35.56mm)		 47th Driest
Driest since:
 2002
81st Wettest
Wettest since:
 1942
Aug 1908–Jul 1910
24-Month 		28.91"
(734.31mm)		 29.06"
(738.12mm)		 -0.15"
(-3.81mm)		 69th Driest
Driest since:
 2003
58th Wettest
Wettest since:
 1942
Aug 1907–Jul 1910
36-Month 		43.95"
(1,116.33mm)		 43.55"
(1,106.17mm)		 0.40"
(10.16mm)		 74th Driest
Driest since:
 1956
52nd Wettest
Wettest since:
 1907
Aug 1906–Jul 1910
48-Month 		61.52"
(1,562.61mm)		 58.02"
(1,473.71mm)		 3.50"
(88.90mm)		 99th Driest
Driest since:
 1956
26th Wettest
Wettest since:
 1986
Aug 1905–Jul 1910
60-Month 		78.45"
(1,992.63mm)		 72.50"
(1,841.50mm)		 5.95"
(151.13mm)		 105th Driest
Driest since:
 1904
19th Wettest
Wettest since:
 1987

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