Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1918

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
July 1918
1-Month		2.16"
(54.86mm)		1.87"
(47.50mm)		0.29"
(7.36mm)		89th Driest
Driest since:
2003
40th Wettest
Wettest since:
1914
Ties: 1923
Jun–Jul 1918
2-Month		3.25"
(82.55mm)		2.81"
(71.37mm)		0.44"
(11.18mm)		103rd Driest
Driest since:
1980
26th Wettest
Wettest since:
1921
Ties: 1895, 2006
May–Jul 1918
3-Month		3.77"
(95.76mm)		3.93"
(99.82mm)		-0.16"
(-4.06mm)		56th Driest
Driest since:
2002
73rd Wettest
Wettest since:
2015
Apr–Jul 1918
4-Month		4.47"
(113.54mm)		4.99"
(126.75mm)		-0.52"
(-13.21mm)		47th Driest
Driest since:
2002
82nd Wettest
Wettest since:
1914
Mar–Jul 1918
5-Month		6.06"
(153.92mm)		6.14"
(155.96mm)		-0.08"
(-2.04mm)		72nd Driest
Driest since:
2002
57th Wettest
Wettest since:
1941
Ties: 1900
Feb–Jul 1918
6-Month		7.08"
(179.83mm)		7.14"
(181.36mm)		-0.06"
(-1.53mm)		68th Driest
Driest since:
2002
61st Wettest
Wettest since:
1941
Ties: 1993
Jan–Jul 1918
7-Month		8.64"
(219.46mm)		8.12"
(206.25mm)		0.52"
(13.21mm)		84th Driest
Driest since:
2002
45th Wettest
Wettest since:
1905
Dec 1917–Jul 1918
8-Month		8.81"
(223.77mm)		9.13"
(231.90mm)		-0.32"
(-8.13mm)		62nd Driest
Driest since:
2002
66th Wettest
Wettest since:
1941
Nov 1917–Jul 1918
9-Month		9.09"
(230.89mm)		10.02"
(254.51mm)		-0.93"
(-23.62mm)		48th Driest
Driest since:
2002
80th Wettest
Wettest since:
1941
Oct 1917–Jul 1918
10-Month		9.27"
(235.46mm)		11.15"
(283.21mm)		-1.88"
(-47.75mm)		29th Driest
Driest since:
2002
99th Wettest
Wettest since:
1941
Sep 1917–Jul 1918
11-Month		10.58"
(268.73mm)		12.52"
(318.01mm)		-1.94"
(-49.28mm)		31st Driest
Driest since:
2002
97th Wettest
Wettest since:
1941
Aug 1917–Jul 1918
12-Month		12.14"
(308.36mm)		14.53"
(369.06mm)		-2.39"
(-60.70mm)		25th Driest
Driest since:
2002
103rd Wettest
Wettest since:
1941
Feb 1917–Jul 1918
18-Month		18.94"
(481.08mm)		21.67"
(550.42mm)		-2.73"
(-69.34mm)		28th Driest
Driest since:
2002
100th Wettest
Wettest since:
1942
Aug 1916–Jul 1918
24-Month		27.76"
(705.10mm)		29.06"
(738.12mm)		-1.30"
(-33.02mm)		50th Driest
Driest since:
2003
77th Wettest
Wettest since:
1942
Aug 1915–Jul 1918
36-Month		42.58"
(1,081.53mm)		43.55"
(1,106.17mm)		-0.97"
(-24.64mm)		51st Driest
Driest since:
1956
75th Wettest
Wettest since:
1907
Aug 1914–Jul 1918
48-Month		60.41"
(1,534.41mm)		58.02"
(1,473.71mm)		2.39"
(60.70mm)		91st Driest
Driest since:
1956
34th Wettest
Wettest since:
1986
Aug 1913–Jul 1918
60-Month		78.05"
(1,982.47mm)		72.50"
(1,841.50mm)		5.55"
(140.97mm)		104th Driest
Driest since:
1904
20th Wettest
Wettest since:
1987

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