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, April 1907

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Wettest/Driest
Since		Record
April 1907
1-Month		1.26"
(32.00mm)		1.06"
(26.92mm)		0.20"
(5.08mm)		99th Driest
Driest since:
1989
31st Wettest
Wettest since:
1900
Ties: 2005
Mar–Apr 1907
2-Month		2.12"
(53.85mm)		2.21"
(56.13mm)		-0.09"
(-2.28mm)		74th Driest
Driest since:
1972
56th Wettest
Wettest since:
1905
Feb–Apr 1907
3-Month		2.95"
(74.93mm)		3.21"
(81.53mm)		-0.26"
(-6.60mm)		62nd Driest
Driest since:
1972
68th Wettest
Wettest since:
1905
Jan–Apr 1907
4-Month		4.64"
(117.86mm)		4.20"
(106.68mm)		0.44"
(11.18mm)		94th Driest
Driest since:
1972
36th Wettest
Wettest since:
1905
Ties: 1932
Dec 1906–Apr 1907
5-Month		6.75"
(171.45mm)		5.21"
(132.33mm)		1.54"
(39.12mm)		114th Driest
Driest since:
2002
15th Wettest
Wettest since:
1905
Nov 1906–Apr 1907
6-Month		8.43"
(214.12mm)		6.10"
(154.94mm)		2.33"
(59.18mm)		119th Driest
Driest since:
1904
10th Wettest
Wettest since:
1941
Oct 1906–Apr 1907
7-Month		9.28"
(235.71mm)		7.23"
(183.64mm)		2.05"
(52.07mm)		112th Driest
Driest since:
1904
17th Wettest
Wettest since:
1941
Sep 1906–Apr 1907
8-Month		10.85"
(275.59mm)		8.60"
(218.44mm)		2.25"
(57.15mm)		114th Driest
Driest since:
2002
15th Wettest
Wettest since:
1941
Aug 1906–Apr 1907
9-Month		13.19"
(335.03mm)		10.61"
(269.49mm)		2.58"
(65.54mm)		117th Driest
Driest since:
2021
12th Wettest
Wettest since:
1905
Jul 1906–Apr 1907
10-Month		15.51"
(393.95mm)		12.48"
(316.99mm)		3.03"
(76.96mm)		118th Driest
Driest since:
2021
11th Wettest
Wettest since:
1905
Jun 1906–Apr 1907
11-Month		15.92"
(404.37mm)		13.41"
(340.61mm)		2.51"
(63.76mm)		115th Driest
Driest since:
2021
14th Wettest
Wettest since:
1905
May 1906–Apr 1907
12-Month		16.99"
(431.55mm)		14.53"
(369.06mm)		2.46"
(62.49mm)		113th Driest
Driest since:
2021
16th Wettest
Wettest since:
1942
Nov 1905–Apr 1907
18-Month		26.52"
(673.61mm)		20.64"
(524.26mm)		5.88"
(149.35mm)		123rd Driest
Driest since:
2021
5th Wettest
Wettest since:
1942
May 1905–Apr 1907
24-Month		33.81"
(858.77mm)		29.05"
(737.87mm)		4.76"
(120.90mm)		118th Driest
Driest since:
2022
10th Wettest
Wettest since:
1942
May 1904–Apr 1907
36-Month		54.00"
(1,371.60mm)		43.55"
(1,106.17mm)		10.45"
(265.43mm)		126th Driest
Driest since:
1904
1st Wettest
Wettest to Date
1907
May 1903–Apr 1907
48-Month		64.18"
(1,630.17mm)		58.02"
(1,473.71mm)		6.16"
(156.46mm)		112th Driest
Driest since:
1904
14th Wettest
Wettest to Date
1986
May 1902–Apr 1907
60-Month		77.43"
(1,966.72mm)		72.49"
(1,841.25mm)		4.94"
(125.47mm)		102nd Driest
Driest since:
1957
23rd Wettest
Wettest to Date
1987

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