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, May 2021

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
May 2021
1-Month
0.04"
(1.02mm)
0.34"
(8.64mm)
-0.30"
(-7.62mm)
12th Driest
Driest since:
2022
117th Wettest
Wettest since:
1992
Ties: 1945, 1948, 1970
Apr–May 2021
2-Month
0.23"
(5.84mm)
0.91"
(23.11mm)
-0.68"
(-17.27mm)
12th Driest
Driest since:
2022
117th Wettest
Wettest since:
1926
Mar–May 2021
3-Month
0.96"
(24.38mm)
2.02"
(51.31mm)
-1.06"
(-26.93mm)
20th Driest
Driest since:
1972
109th Wettest
Wettest since:
1905
Feb–May 2021
4-Month
1.19"
(30.23mm)
3.17"
(80.52mm)
-1.98"
(-50.29mm)
11th Driest
Driest since:
1972
118th Wettest
Wettest since:
1905
Ties: 1895
Jan–May 2021
5-Month
2.50"
(63.50mm)
4.31"
(109.47mm)
-1.81"
(-45.97mm)
29th Driest
Driest since:
1972
100th Wettest
Wettest since:
1905
Dec 2020–May 2021
6-Month
2.79"
(70.87mm)
5.50"
(139.70mm)
-2.71"
(-68.83mm)
18th Driest
Driest since:
2002
110th Wettest
Wettest since:
1905
Nov 2020–May 2021
7-Month
3.06"
(77.72mm)
6.35"
(161.29mm)
-3.29"
(-83.57mm)
12th Driest
Driest since:
1904
116th Wettest
Wettest since:
1941
Oct 2020–May 2021
8-Month
3.20"
(81.28mm)
7.22"
(183.39mm)
-4.02"
(-102.11mm)
8th Driest
Driest since:
1904
120th Wettest
Wettest since:
1941
Sep 2020–May 2021
9-Month
3.31"
(84.07mm)
8.41"
(213.61mm)
-5.10"
(-129.54mm)
3rd Driest
Driest since:
2002
125th Wettest
Wettest since:
1941
Ties: 2006
Aug 2020–May 2021
10-Month
3.91"
(99.31mm)
10.50"
(266.70mm)
-6.59"
(-167.39mm)
1st Driest
Driest since:
2021
127th Wettest
Wettest since:
1941
Jul 2020–May 2021
11-Month
4.62"
(117.35mm)
12.30"
(312.42mm)
-7.68"
(-195.07mm)
1st Driest
Driest since:
2021
127th Wettest
Wettest since:
1941
Jun 2020–May 2021
12-Month
4.66"
(118.36mm)
12.59"
(319.79mm)
-7.93"
(-201.43mm)
1st Driest
Driest since:
2021
127th Wettest
Wettest since:
1941
Dec 2019–May 2021
18-Month
10.69"
(271.53mm)
18.09"
(459.49mm)
-7.40"
(-187.96mm)
1st Driest
Driest since:
2021
126th Wettest
Wettest since:
1993
Jun 2019–May 2021
24-Month
17.08"
(433.83mm)
25.16"
(639.06mm)
-8.08"
(-205.23mm)
6th Driest
Driest since:
2022
121st Wettest
Wettest since:
1993
Jun 2018–May 2021
36-Month
33.16"
(842.26mm)
37.71"
(957.83mm)
-4.55"
(-115.57mm)
35th Driest
Driest since:
1904
91st Wettest
Wettest since:
1907
Jun 2017–May 2021
48-Month
40.55"
(1,029.97mm)
50.21"
(1,275.33mm)
-9.66"
(-245.36mm)
9th Driest
Driest since:
1904
116th Wettest
Wettest since:
1908
Jun 2016–May 2021
60-Month
54.05"
(1,372.87mm)
62.76"
(1,594.10mm)
-8.71"
(-221.23mm)
22nd Driest
Driest since:
1904
102nd Wettest
Wettest since:
1909

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