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 1940

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1940
1-Month 		0.77"
(19.56mm)		 1.80"
(45.72mm)		 -1.03"
(-26.16mm)		 8th Driest
Driest since:
 1993
121st Wettest
Wettest since:
 1919
Jun–Jul 1940
2-Month 		1.38"
(35.05mm)		 2.09"
(53.09mm)		 -0.71"
(-18.04mm)		 30th Driest
Driest since:
 1993
99th Wettest
Wettest since:
 1919
Ties: 1962, 1979
May–Jul 1940
3-Month 		1.70"
(43.18mm)		 2.43"
(61.72mm)		 -0.73"
(-18.54mm)		 25th Driest
Driest since:
 1963, 2020
104th Wettest
Wettest since:
 1919
Apr–Jul 1940
4-Month 		2.48"
(62.99mm)		 3.00"
(76.20mm)		 -0.52"
(-13.21mm)		 44th Driest
Driest since:
 1993
85th Wettest
Wettest since:
 1919
Mar–Jul 1940
5-Month 		2.72"
(69.09mm)		 4.12"
(104.65mm)		 -1.40"
(-35.56mm)		 22nd Driest
Driest since:
 2002
107th Wettest
Wettest since:
 1912
Feb–Jul 1940
6-Month 		4.44"
(112.78mm)		 5.26"
(133.60mm)		 -0.82"
(-20.82mm)		 47th Driest
Driest since:
 2002
82nd Wettest
Wettest since:
 1905
Ties: 1896
Jan–Jul 1940
7-Month 		5.23"
(132.84mm)		 6.41"
(162.81mm)		 -1.18"
(-29.97mm)		 50th Driest
Driest since:
 2002
79th Wettest
Wettest since:
 1905
Dec 1939–Jul 1940
8-Month 		5.56"
(141.22mm)		 7.59"
(192.79mm)		 -2.03"
(-51.57mm)		 28th Driest
Driest since:
 2002
100th Wettest
Wettest since:
 1905
Nov 1939–Jul 1940
9-Month 		6.74"
(171.20mm)		 8.44"
(214.38mm)		 -1.70"
(-43.18mm)		 36th Driest
Driest since:
 2002
92nd Wettest
Wettest since:
 1941
Oct 1939–Jul 1940
10-Month 		7.14"
(181.36mm)		 9.31"
(236.47mm)		 -2.17"
(-55.11mm)		 31st Driest
Driest since:
 2002
97th Wettest
Wettest since:
 1941
Sep 1939–Jul 1940
11-Month 		10.11"
(256.79mm)		 10.51"
(266.95mm)		 -0.40"
(-10.16mm)		 68th Driest
Driest since:
 2002
60th Wettest
Wettest since:
 1941
Aug 1939–Jul 1940
12-Month 		12.02"
(305.31mm)		 12.59"
(319.79mm)		 -0.57"
(-14.48mm)		 67th Driest
Driest since:
 2002
61st Wettest
Wettest since:
 1941
Feb 1939–Jul 1940
18-Month 		15.55"
(394.97mm)		 17.86"
(453.64mm)		 -2.31"
(-58.67mm)		 45th Driest
Driest since:
 1900
83rd Wettest
Wettest since:
 1993
Aug 1938–Jul 1940
24-Month 		21.49"
(545.85mm)		 25.18"
(639.57mm)		 -3.69"
(-93.72mm)		 36th Driest
Driest since:
 1900
91st Wettest
Wettest since:
 1906
Aug 1937–Jul 1940
36-Month 		32.80"
(833.12mm)		 37.73"
(958.34mm)		 -4.93"
(-125.22mm)		 28th Driest
Driest since:
 1904
98th Wettest
Wettest since:
 1907
Aug 1936–Jul 1940
48-Month 		46.86"
(1,190.24mm)		 50.23"
(1,275.84mm)		 -3.37"
(-85.60mm)		 47th Driest
Driest since:
 1902
78th Wettest
Wettest since:
 1908
Aug 1935–Jul 1940
60-Month 		59.48"
(1,510.79mm)		 62.77"
(1,594.36mm)		 -3.29"
(-83.57mm)		 54th Driest
Driest since:
 1904
70th Wettest
Wettest since:
 1909

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