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, August 1931

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
August 1931
1-Month 		3.41"
(86.61mm)		 2.10"
(53.34mm)		 1.31"
(33.27mm)		 121st Driest
Driest since:
 2020
8th Wettest
Wettest since:
 1951
Jul–Aug 1931
2-Month 		5.34"
(135.64mm)		 3.90"
(99.06mm)		 1.44"
(36.58mm)		 118th Driest
Driest since:
 2020
11th Wettest
Wettest since:
 1921
Jun–Aug 1931
3-Month 		5.95"
(151.13mm)		 4.19"
(106.43mm)		 1.76"
(44.70mm)		 120th Driest
Driest since:
 2020
9th Wettest
Wettest since:
 1921
May–Aug 1931
4-Month 		6.33"
(160.78mm)		 4.53"
(115.06mm)		 1.80"
(45.72mm)		 121st Driest
Driest since:
 2020
8th Wettest
Wettest since:
 1921
Apr–Aug 1931
5-Month 		7.54"
(191.52mm)		 5.10"
(129.54mm)		 2.44"
(61.98mm)		 122nd Driest
Driest since:
 2020
7th Wettest
Wettest since:
 1921
Mar–Aug 1931
6-Month 		7.85"
(199.39mm)		 6.22"
(157.99mm)		 1.63"
(41.40mm)		 113th Driest
Driest since:
 2002
16th Wettest
Wettest since:
 1992
Feb–Aug 1931
7-Month 		11.13"
(282.70mm)		 7.37"
(187.20mm)		 3.76"
(95.50mm)		 125th Driest
Driest since:
 2002
4th Wettest
Wettest since:
 1905
Jan–Aug 1931
8-Month 		11.60"
(294.64mm)		 8.51"
(216.15mm)		 3.09"
(78.49mm)		 121st Driest
Driest since:
 2002
8th Wettest
Wettest since:
 1905
Dec 1930–Aug 1931
9-Month 		11.75"
(298.45mm)		 9.69"
(246.13mm)		 2.06"
(52.32mm)		 109th Driest
Driest since:
 2002
19th Wettest
Wettest since:
 1941
Nov 1930–Aug 1931
10-Month 		13.37"
(339.60mm)		 10.54"
(267.72mm)		 2.83"
(71.88mm)		 114th Driest
Driest since:
 2002
14th Wettest
Wettest since:
 1941
Ties: 1919
Oct 1930–Aug 1931
11-Month 		13.75"
(349.25mm)		 11.42"
(290.07mm)		 2.33"
(59.18mm)		 108th Driest
Driest since:
 2002
20th Wettest
Wettest since:
 1941
Sep 1930–Aug 1931
12-Month 		14.73"
(374.14mm)		 12.61"
(320.29mm)		 2.12"
(53.85mm)		 103rd Driest
Driest since:
 2002
25th Wettest
Wettest since:
 1941
Mar 1930–Aug 1931
18-Month 		22.85"
(580.39mm)		 18.81"
(477.77mm)		 4.04"
(102.62mm)		 114th Driest
Driest since:
 1902
14th Wettest
Wettest since:
 1993
Sep 1929–Aug 1931
24-Month 		27.47"
(697.74mm)		 25.20"
(640.08mm)		 2.27"
(57.66mm)		 98th Driest
Driest since:
 1900
29th Wettest
Wettest since:
 1993
Sep 1928–Aug 1931
36-Month 		38.36"
(974.34mm)		 37.75"
(958.85mm)		 0.61"
(15.49mm)		 81st Driest
Driest since:
 1902
45th Wettest
Wettest since:
 1907
Sep 1927–Aug 1931
48-Month 		49.52"
(1,257.81mm)		 50.26"
(1,276.60mm)		 -0.74"
(-18.79mm)		 71st Driest
Driest since:
 1902
54th Wettest
Wettest since:
 1908
Sep 1926–Aug 1931
60-Month 		64.63"
(1,641.60mm)		 62.79"
(1,594.87mm)		 1.84"
(46.73mm)		 83rd Driest
Driest since:
 1903
41st Wettest
Wettest since:
 1909

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