Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Arizona

Precipitation Rankings, April 1991

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
April 1991
1-Month 		0.01"
(0.25mm)		 0.57"
(14.48mm)		 -0.56"
(-14.23mm)		 1st Driest
Driest since:
 1989, 1991
128th Wettest
Wettest since:
 1926
Ties: 1989
Mar–Apr 1991
2-Month 		3.08"
(78.23mm)		 1.69"
(42.93mm)		 1.39"
(35.30mm)		 118th Driest
Driest since:
 2008
11th Wettest
Wettest since:
 1905
Feb–Apr 1991
3-Month 		3.97"
(100.84mm)		 2.83"
(71.88mm)		 1.14"
(28.96mm)		 106th Driest
Driest since:
 1972
23rd Wettest
Wettest since:
 1905
Jan–Apr 1991
4-Month 		5.09"
(129.29mm)		 3.98"
(101.09mm)		 1.11"
(28.20mm)		 103rd Driest
Driest since:
 1972
26th Wettest
Wettest since:
 1905
Dec 1990–Apr 1991
5-Month 		6.45"
(163.83mm)		 5.16"
(131.06mm)		 1.29"
(32.77mm)		 101st Driest
Driest since:
 1904
27th Wettest
Wettest since:
 1905
Nov 1990–Apr 1991
6-Month 		7.25"
(184.15mm)		 6.01"
(152.65mm)		 1.24"
(31.50mm)		 97th Driest
Driest since:
 1904
31st Wettest
Wettest since:
 1905
Oct 1990–Apr 1991
7-Month 		7.73"
(196.34mm)		 6.89"
(175.01mm)		 0.84"
(21.33mm)		 90th Driest
Driest since:
 1904
38th Wettest
Wettest since:
 1941
Sep 1990–Apr 1991
8-Month 		9.81"
(249.17mm)		 8.08"
(205.23mm)		 1.73"
(43.94mm)		 102nd Driest
Driest since:
 2002
26th Wettest
Wettest since:
 1941
Aug 1990–Apr 1991
9-Month 		12.11"
(307.59mm)		 10.16"
(258.06mm)		 1.95"
(49.53mm)		 105th Driest
Driest since:
 2021
23rd Wettest
Wettest since:
 1941
Jul 1990–Apr 1991
10-Month 		15.04"
(382.02mm)		 11.97"
(304.04mm)		 3.07"
(77.98mm)		 112th Driest
Driest since:
 2021
16th Wettest
Wettest since:
 1941
Jun 1990–Apr 1991
11-Month 		15.32"
(389.13mm)		 12.25"
(311.15mm)		 3.07"
(77.98mm)		 112th Driest
Driest since:
 2021
16th Wettest
Wettest since:
 1941
May 1990–Apr 1991
12-Month 		15.72"
(399.29mm)		 12.59"
(319.79mm)		 3.13"
(79.50mm)		 112th Driest
Driest since:
 2021
16th Wettest
Wettest since:
 1941
Nov 1989–Apr 1991
18-Month 		19.60"
(497.84mm)		 18.61"
(472.69mm)		 0.99"
(25.15mm)		 89th Driest
Driest since:
 1903
38th Wettest
Wettest since:
 1993
May 1989–Apr 1991
24-Month 		24.23"
(615.44mm)		 25.16"
(639.06mm)		 -0.93"
(-23.62mm)		 64th Driest
Driest since:
 1904
63rd Wettest
Wettest since:
 1906
May 1988–Apr 1991
36-Month 		35.27"
(895.86mm)		 37.71"
(957.83mm)		 -2.44"
(-61.97mm)		 55th Driest
Driest since:
 1904
71st Wettest
Wettest since:
 1907
May 1987–Apr 1991
48-Month 		49.10"
(1,247.14mm)		 50.22"
(1,275.59mm)		 -1.12"
(-28.45mm)		 65th Driest
Driest since:
 1904
60th Wettest
Wettest since:
 1908
May 1986–Apr 1991
60-Month 		63.01"
(1,600.45mm)		 62.77"
(1,594.36mm)		 0.24"
(6.09mm)		 73rd Driest
Driest since:
 1904
51st Wettest
Wettest since:
 1909

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