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 1921

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1921
1-Month 		3.12"
(79.25mm)		 1.87"
(47.50mm)		 1.25"
(31.75mm)		 126th Driest
Driest since:
 2003
3rd Wettest
Wettest since:
 1914
Jun–Jul 1921
2-Month 		4.85"
(123.19mm)		 2.81"
(71.37mm)		 2.04"
(51.82mm)		 128th Driest
Driest since:
 1980
1st Wettest
Wettest to Date
 1921
May–Jul 1921
3-Month 		6.23"
(158.24mm)		 3.93"
(99.82mm)		 2.30"
(58.42mm)		 126th Driest
Driest since:
 2002
3rd Wettest
Wettest since:
 2015
Apr–Jul 1921
4-Month 		7.32"
(185.93mm)		 4.99"
(126.75mm)		 2.33"
(59.18mm)		 124th Driest
Driest since:
 2002
5th Wettest
Wettest since:
 1914
Mar–Jul 1921
5-Month 		8.18"
(207.77mm)		 6.14"
(155.96mm)		 2.04"
(51.81mm)		 122nd Driest
Driest since:
 2002
7th Wettest
Wettest since:
 1941
Ties: 1906
Feb–Jul 1921
6-Month 		8.74"
(222.00mm)		 7.14"
(181.36mm)		 1.60"
(40.64mm)		 116th Driest
Driest since:
 2002
13th Wettest
Wettest since:
 1941
Ties: 1999
Jan–Jul 1921
7-Month 		9.74"
(247.40mm)		 8.12"
(206.25mm)		 1.62"
(41.15mm)		 114th Driest
Driest since:
 2002
15th Wettest
Wettest since:
 1905
Ties: 1978
Dec 1920–Jul 1921
8-Month 		10.33"
(262.38mm)		 9.13"
(231.90mm)		 1.20"
(30.48mm)		 98th Driest
Driest since:
 2002
30th Wettest
Wettest since:
 1941
Nov 1920–Jul 1921
9-Month 		10.83"
(275.08mm)		 10.02"
(254.51mm)		 0.81"
(20.57mm)		 90th Driest
Driest since:
 2002
38th Wettest
Wettest since:
 1941
Oct 1920–Jul 1921
10-Month 		12.63"
(320.80mm)		 11.15"
(283.21mm)		 1.48"
(37.59mm)		 98th Driest
Driest since:
 2002
30th Wettest
Wettest since:
 1941
Ties: 1965
Sep 1920–Jul 1921
11-Month 		13.65"
(346.71mm)		 12.52"
(318.01mm)		 1.13"
(28.70mm)		 92nd Driest
Driest since:
 2002
36th Wettest
Wettest since:
 1941
Aug 1920–Jul 1921
12-Month 		15.76"
(400.30mm)		 14.53"
(369.06mm)		 1.23"
(31.24mm)		 94th Driest
Driest since:
 2002
34th Wettest
Wettest since:
 1941
Feb 1920–Jul 1921
18-Month 		23.75"
(603.25mm)		 21.67"
(550.42mm)		 2.08"
(52.83mm)		 100th Driest
Driest since:
 2002
28th Wettest
Wettest since:
 1942
Aug 1919–Jul 1921
24-Month 		32.47"
(824.74mm)		 29.06"
(738.12mm)		 3.41"
(86.62mm)		 105th Driest
Driest since:
 2003
22nd Wettest
Wettest since:
 1942
Aug 1918–Jul 1921
36-Month 		48.75"
(1,238.25mm)		 43.55"
(1,106.17mm)		 5.20"
(132.08mm)		 113th Driest
Driest since:
 1956
13th Wettest
Wettest since:
 1907
Aug 1917–Jul 1921
48-Month 		60.89"
(1,546.61mm)		 58.02"
(1,473.71mm)		 2.87"
(72.90mm)		 94th Driest
Driest since:
 1956
31st Wettest
Wettest since:
 1986
Aug 1916–Jul 1921
60-Month 		76.51"
(1,943.35mm)		 72.50"
(1,841.50mm)		 4.01"
(101.85mm)		 96th Driest
Driest since:
 1904
28th Wettest
Wettest since:
 1987
Ties: 2001

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