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 1899

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Wettest/Driest
Since		Record
April 1899
1-Month		0.49"
(12.45mm)		1.06"
(26.92mm)		-0.57"
(-14.47mm)		11th Driest
Driest since:
1989
119th Wettest
Wettest since:
1900
Ties: 1904, 2023
Mar–Apr 1899
2-Month		1.48"
(37.59mm)		2.21"
(56.13mm)		-0.73"
(-18.54mm)		25th Driest
Driest since:
1972
105th Wettest
Wettest since:
1905
Feb–Apr 1899
3-Month		2.43"
(61.72mm)		3.21"
(81.53mm)		-0.78"
(-19.81mm)		34th Driest
Driest since:
1972
96th Wettest
Wettest since:
1905
Jan–Apr 1899
4-Month		3.19"
(81.03mm)		4.20"
(106.68mm)		-1.01"
(-25.65mm)		33rd Driest
Driest since:
1972
97th Wettest
Wettest since:
1905
Dec 1898–Apr 1899
5-Month		4.38"
(111.25mm)		5.21"
(132.33mm)		-0.83"
(-21.08mm)		43rd Driest
Driest since:
2002
86th Wettest
Wettest since:
1905
Nov 1898–Apr 1899
6-Month		5.16"
(131.06mm)		6.10"
(154.94mm)		-0.94"
(-23.88mm)		44th Driest
Driest since:
1904
85th Wettest
Wettest since:
1941
Ties: 1976
Oct 1898–Apr 1899
7-Month		5.55"
(140.97mm)		7.23"
(183.64mm)		-1.68"
(-42.67mm)		31st Driest
Driest to Date
1904
98th Wettest
Wettest since:
1941
Ties: 1946
Sep 1898–Apr 1899
8-Month		6.05"
(153.67mm)		8.60"
(218.44mm)		-2.55"
(-64.77mm)		8th Driest
Driest to Date
2002
121st Wettest
Wettest since:
1941
Ties: 2022
Aug 1898–Apr 1899
9-Month		7.88"
(200.15mm)		10.61"
(269.49mm)		-2.73"
(-69.34mm)		13th Driest
Driest to Date
2021
116th Wettest
Wettest since:
1905
Jul 1898–Apr 1899
10-Month		10.01"
(254.25mm)		12.48"
(316.99mm)		-2.47"
(-62.74mm)		18th Driest
Driest to Date
2021
111th Wettest
Wettest since:
1905
Jun 1898–Apr 1899
11-Month		11.46"
(291.08mm)		13.41"
(340.61mm)		-1.95"
(-49.53mm)		28th Driest
Driest to Date
2021
101st Wettest
Wettest since:
1905
May 1898–Apr 1899
12-Month		13.30"
(337.82mm)		14.53"
(369.06mm)		-1.23"
(-31.24mm)		44th Driest
Driest to Date
2021
85th Wettest
Wettest since:
1942
Nov 1897–Apr 1899
18-Month		18.02"
(457.71mm)		20.64"
(524.26mm)		-2.62"
(-66.55mm)		27th Driest
Driest to Date
2021
101st Wettest
Wettest since:
1942
May 1897–Apr 1899
24-Month		27.91"
(708.91mm)		29.05"
(737.87mm)		-1.14"
(-28.96mm)		54th Driest
Driest to Date
2022
74th Wettest
Wettest since:
1942
May 1896–Apr 1899
36-Month		43.96"
(1,116.58mm)		43.55"
(1,106.17mm)		0.41"
(10.41mm)		76th Driest
Driest to Date
1904
51st Wettest
Wettest since:
1907
May 1895–Apr 1899
48-Month		57.60"
(1,463.04mm)		58.02"
(1,473.71mm)		-0.42"
(-10.67mm)		65th Driest
Driest to Date
1904
61st Wettest
Wettest to Date
1986

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