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 1937

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1937
1-Month
0.14"
(3.56mm)
0.57"
(14.48mm)
-0.43"
(-10.92mm)
20th Driest
Driest since:
1989, 1991
109th Wettest
Wettest since:
1926
Ties: 1901
Mar–Apr 1937
2-Month
1.87"
(47.50mm)
1.69"
(42.93mm)
0.18"
(4.57mm)
93rd Driest
Driest since:
2008
36th Wettest
Wettest since:
1905
Feb–Apr 1937
3-Month
3.21"
(81.53mm)
2.83"
(71.88mm)
0.38"
(9.65mm)
93rd Driest
Driest since:
1972
36th Wettest
Wettest since:
1905
Jan–Apr 1937
4-Month
4.75"
(120.65mm)
3.98"
(101.09mm)
0.77"
(19.56mm)
97th Driest
Driest since:
1972
32nd Wettest
Wettest since:
1905
Ties: 1917, 1944
Dec 1936–Apr 1937
5-Month
6.76"
(171.70mm)
5.16"
(131.06mm)
1.60"
(40.64mm)
104th Driest
Driest since:
1904
24th Wettest
Wettest since:
1905
Nov 1936–Apr 1937
6-Month
7.47"
(189.74mm)
6.01"
(152.65mm)
1.46"
(37.09mm)
100th Driest
Driest since:
1904
28th Wettest
Wettest since:
1905
Oct 1936–Apr 1937
7-Month
8.36"
(212.34mm)
6.89"
(175.01mm)
1.47"
(37.33mm)
98th Driest
Driest since:
1904
30th Wettest
Wettest since:
1941
Sep 1936–Apr 1937
8-Month
9.67"
(245.62mm)
8.08"
(205.23mm)
1.59"
(40.39mm)
99th Driest
Driest since:
2002
29th Wettest
Wettest since:
1941
Aug 1936–Apr 1937
9-Month
11.71"
(297.43mm)
10.16"
(258.06mm)
1.55"
(39.37mm)
95th Driest
Driest since:
2021
33rd Wettest
Wettest since:
1941
Ties: 1916
Jul 1936–Apr 1937
10-Month
13.90"
(353.06mm)
11.97"
(304.04mm)
1.93"
(49.02mm)
98th Driest
Driest since:
2021
30th Wettest
Wettest since:
1941
Jun 1936–Apr 1937
11-Month
14.11"
(358.39mm)
12.25"
(311.15mm)
1.86"
(47.24mm)
95th Driest
Driest since:
2021
33rd Wettest
Wettest since:
1941
May 1936–Apr 1937
12-Month
14.27"
(362.46mm)
12.59"
(319.79mm)
1.68"
(42.67mm)
94th Driest
Driest since:
2021
34th Wettest
Wettest since:
1941
Nov 1935–Apr 1937
18-Month
19.50"
(495.30mm)
18.61"
(472.69mm)
0.89"
(22.61mm)
87th Driest
Driest since:
1903
40th Wettest
Wettest since:
1993
May 1935–Apr 1937
24-Month
26.24"
(666.50mm)
25.16"
(639.06mm)
1.08"
(27.44mm)
86th Driest
Driest since:
1904
41st Wettest
Wettest since:
1906
May 1934–Apr 1937
36-Month
39.82"
(1,011.43mm)
37.71"
(957.83mm)
2.11"
(53.60mm)
91st Driest
Driest since:
1904
35th Wettest
Wettest since:
1907
May 1933–Apr 1937
48-Month
49.80"
(1,264.92mm)
50.22"
(1,275.59mm)
-0.42"
(-10.67mm)
76th Driest
Driest since:
1904
49th Wettest
Wettest since:
1908
Ties: 2020
May 1932–Apr 1937
60-Month
61.21"
(1,554.73mm)
62.77"
(1,594.36mm)
-1.56"
(-39.63mm)
62nd Driest
Driest since:
1904
62nd Wettest
Wettest since:
1909

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