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, July 1939

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1939
1-Month 		1.03"
(26.16mm)		 1.80"
(45.72mm)		 -0.77"
(-19.56mm)		 20th Driest
Driest since:
 1993
109th Wettest
Wettest since:
 1919
Ties: 1934, 1979
Jun–Jul 1939
2-Month 		1.06"
(26.92mm)		 2.09"
(53.09mm)		 -1.03"
(-26.17mm)		 11th Driest
Driest since:
 1993
118th Wettest
Wettest since:
 1919
May–Jul 1939
3-Month 		1.13"
(28.70mm)		 2.43"
(61.72mm)		 -1.30"
(-33.02mm)		 6th Driest
Driest since:
 1963, 2020
123rd Wettest
Wettest since:
 1919
Ties: 1943
Apr–Jul 1939
4-Month 		1.73"
(43.94mm)		 3.00"
(76.20mm)		 -1.27"
(-32.26mm)		 15th Driest
Driest since:
 1993
114th Wettest
Wettest since:
 1919
Mar–Jul 1939
5-Month 		2.45"
(62.23mm)		 4.12"
(104.65mm)		 -1.67"
(-42.42mm)		 12th Driest
Driest since:
 2002
117th Wettest
Wettest since:
 1912
Feb–Jul 1939
6-Month 		3.53"
(89.66mm)		 5.26"
(133.60mm)		 -1.73"
(-43.94mm)		 20th Driest
Driest since:
 2002
109th Wettest
Wettest since:
 1905
Jan–Jul 1939
7-Month 		4.64"
(117.86mm)		 6.41"
(162.81mm)		 -1.77"
(-44.95mm)		 27th Driest
Driest since:
 2002
102nd Wettest
Wettest since:
 1905
Dec 1938–Jul 1939
8-Month 		6.53"
(165.86mm)		 7.59"
(192.79mm)		 -1.06"
(-26.93mm)		 52nd Driest
Driest since:
 2002
76th Wettest
Wettest since:
 1905
Nov 1938–Jul 1939
9-Month 		6.63"
(168.40mm)		 8.44"
(214.38mm)		 -1.81"
(-45.98mm)		 34th Driest
Driest since:
 2002
94th Wettest
Wettest since:
 1941
Oct 1938–Jul 1939
10-Month 		6.77"
(171.96mm)		 9.31"
(236.47mm)		 -2.54"
(-64.51mm)		 23rd Driest
Driest since:
 2002
105th Wettest
Wettest since:
 1941
Sep 1938–Jul 1939
11-Month 		7.50"
(190.50mm)		 10.51"
(266.95mm)		 -3.01"
(-76.45mm)		 18th Driest
Driest since:
 2002
110th Wettest
Wettest since:
 1941
Aug 1938–Jul 1939
12-Month 		9.47"
(240.54mm)		 12.59"
(319.79mm)		 -3.12"
(-79.25mm)		 19th Driest
Driest since:
 2002
109th Wettest
Wettest since:
 1941
Ties: 1977
Feb 1938–Jul 1939
18-Month 		15.56"
(395.22mm)		 17.86"
(453.64mm)		 -2.30"
(-58.42mm)		 46th Driest
Driest since:
 1900
82nd Wettest
Wettest since:
 1993
Aug 1937–Jul 1939
24-Month 		20.78"
(527.81mm)		 25.18"
(639.57mm)		 -4.40"
(-111.76mm)		 29th Driest
Driest since:
 1900
98th Wettest
Wettest since:
 1906
Aug 1936–Jul 1939
36-Month 		34.84"
(884.94mm)		 37.73"
(958.34mm)		 -2.89"
(-73.40mm)		 49th Driest
Driest since:
 1904
77th Wettest
Wettest since:
 1907
Aug 1935–Jul 1939
48-Month 		47.46"
(1,205.48mm)		 50.23"
(1,275.84mm)		 -2.77"
(-70.36mm)		 49th Driest
Driest since:
 1902
76th Wettest
Wettest since:
 1908
Aug 1934–Jul 1939
60-Month 		61.07"
(1,551.18mm)		 62.77"
(1,594.36mm)		 -1.70"
(-43.18mm)		 64th Driest
Driest since:
 1904
60th Wettest
Wettest since:
 1909

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