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 1957

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1957
1-Month 		2.15"
(54.61mm)		 1.87"
(47.50mm)		 0.28"
(7.11mm)		 87th Driest
Driest since:
 2003
42nd Wettest
Wettest since:
 1914
Jun–Jul 1957
2-Month 		3.08"
(78.23mm)		 2.81"
(71.37mm)		 0.27"
(6.86mm)		 91st Driest
Driest since:
 1980
38th Wettest
Wettest since:
 1921
Ties: 1997
May–Jul 1957
3-Month 		5.36"
(136.14mm)		 3.93"
(99.82mm)		 1.43"
(36.32mm)		 120th Driest
Driest since:
 2002
9th Wettest
Wettest since:
 2015
Apr–Jul 1957
4-Month 		7.08"
(179.83mm)		 4.99"
(126.75mm)		 2.09"
(53.08mm)		 122nd Driest
Driest since:
 2002
7th Wettest
Wettest since:
 1914
Mar–Jul 1957
5-Month 		8.26"
(209.80mm)		 6.14"
(155.96mm)		 2.12"
(53.84mm)		 123rd Driest
Driest since:
 2002
6th Wettest
Wettest since:
 1941
Feb–Jul 1957
6-Month 		8.94"
(227.08mm)		 7.14"
(181.36mm)		 1.80"
(45.72mm)		 120th Driest
Driest since:
 2002
9th Wettest
Wettest since:
 1941
Jan–Jul 1957
7-Month 		10.97"
(278.64mm)		 8.12"
(206.25mm)		 2.85"
(72.39mm)		 125th Driest
Driest since:
 2002
4th Wettest
Wettest since:
 1905
Dec 1956–Jul 1957
8-Month 		11.46"
(291.08mm)		 9.13"
(231.90mm)		 2.33"
(59.18mm)		 119th Driest
Driest since:
 2002
9th Wettest
Wettest since:
 1941
Nov 1956–Jul 1957
9-Month 		11.78"
(299.21mm)		 10.02"
(254.51mm)		 1.76"
(44.70mm)		 106th Driest
Driest since:
 2002
22nd Wettest
Wettest since:
 1941
Oct 1956–Jul 1957
10-Month 		12.42"
(315.47mm)		 11.15"
(283.21mm)		 1.27"
(32.26mm)		 94th Driest
Driest since:
 2002
34th Wettest
Wettest since:
 1941
Sep 1956–Jul 1957
11-Month 		12.51"
(317.75mm)		 12.52"
(318.01mm)		 -0.01"
(-0.26mm)		 72nd Driest
Driest since:
 2002
56th Wettest
Wettest since:
 1941
Ties: 1930
Aug 1956–Jul 1957
12-Month 		13.62"
(345.95mm)		 14.53"
(369.06mm)		 -0.91"
(-23.11mm)		 50th Driest
Driest since:
 2002
78th Wettest
Wettest since:
 1941
Feb 1956–Jul 1957
18-Month 		18.18"
(461.77mm)		 21.67"
(550.42mm)		 -3.49"
(-88.65mm)		 18th Driest
Driest since:
 2002
110th Wettest
Wettest since:
 1942
Ties: 1972
Aug 1955–Jul 1957
24-Month 		24.62"
(625.35mm)		 29.06"
(738.12mm)		 -4.44"
(-112.77mm)		 19th Driest
Driest since:
 2003
108th Wettest
Wettest since:
 1942
Aug 1954–Jul 1957
36-Month 		37.01"
(940.05mm)		 43.55"
(1,106.17mm)		 -6.54"
(-166.12mm)		 12th Driest
Driest since:
 1956
114th Wettest
Wettest since:
 1907
Aug 1953–Jul 1957
48-Month 		47.81"
(1,214.37mm)		 58.02"
(1,473.71mm)		 -10.21"
(-259.34mm)		 4th Driest
Driest since:
 1956
121st Wettest
Wettest since:
 1986
Aug 1952–Jul 1957
60-Month 		59.84"
(1,519.94mm)		 72.50"
(1,841.50mm)		 -12.66"
(-321.56mm)		 2nd Driest
Driest since:
 1904
122nd Wettest
Wettest since:
 1987

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