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.

Michigan

Precipitation Rankings, May 2020

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
May 2020
1-Month 		4.06"
(103.12mm)		 3.09"
(78.49mm)		 0.97"
(24.63mm)		 107th Driest
Driest since:
 1925
22nd Wettest
Wettest since:
 2004
Apr–May 2020
2-Month 		7.07"
(179.58mm)		 5.68"
(144.27mm)		 1.39"
(35.31mm)		 107th Driest
Driest since:
 1925
22nd Wettest
Wettest since:
 2011
Mar–May 2020
3-Month 		9.90"
(251.46mm)		 7.73"
(196.34mm)		 2.17"
(55.12mm)		 114th Driest
Driest since:
 1958
15th Wettest
Wettest since:
 2011
Feb–May 2020
4-Month 		10.93"
(277.62mm)		 9.23"
(234.44mm)		 1.70"
(43.18mm)		 101st Driest
Driest since:
 1958
28th Wettest
Wettest since:
 2011
Ties: 1974
Jan–May 2020
5-Month 		13.77"
(349.76mm)		 11.04"
(280.42mm)		 2.73"
(69.34mm)		 115th Driest
Driest since:
 1958
14th Wettest
Wettest since:
 2013
Dec 2019–May 2020
6-Month 		17.19"
(436.63mm)		 13.03"
(330.96mm)		 4.16"
(105.67mm)		 122nd Driest
Driest since:
 1958
6th Wettest
Wettest since:
 2013
Nov 2019–May 2020
7-Month 		19.88"
(504.95mm)		 15.60"
(396.24mm)		 4.28"
(108.71mm)		 124th Driest
Driest since:
 1987
4th Wettest
Wettest since:
 2004
Oct 2019–May 2020
8-Month 		25.42"
(645.67mm)		 18.31"
(465.07mm)		 7.11"
(180.60mm)		 127th Driest
Driest since:
 1925
1st Wettest
Wettest to Date
 2020
Sep 2019–May 2020
9-Month 		30.61"
(777.49mm)		 21.69"
(550.93mm)		 8.92"
(226.56mm)		 127th Driest
Driest since:
 1925
1st Wettest
Wettest to Date
 2020
Aug 2019–May 2020
10-Month 		33.07"
(839.98mm)		 24.82"
(630.43mm)		 8.25"
(209.55mm)		 127th Driest
Driest since:
 1931
1st Wettest
Wettest to Date
 2020
Jul 2019–May 2020
11-Month 		36.06"
(915.92mm)		 27.88"
(708.15mm)		 8.18"
(207.77mm)		 126th Driest
Driest since:
 1931
2nd Wettest
Wettest since:
 2017
Jun 2019–May 2020
12-Month 		40.19"
(1,020.83mm)		 31.14"
(790.96mm)		 9.05"
(229.87mm)		 127th Driest
Driest since:
 1931
1st Wettest
Wettest to Date
 2020
Dec 2018–May 2020
18-Month 		57.43"
(1,458.72mm)		 44.16"
(1,121.66mm)		 13.27"
(337.06mm)		 126th Driest
Driest since:
 1931
1st Wettest
Wettest to Date
 2020
Jun 2018–May 2020
24-Month 		78.68"
(1,998.47mm)		 62.26"
(1,581.40mm)		 16.42"
(417.07mm)		 126th Driest
Driest since:
 1931
1st Wettest
Wettest to Date
 2020
Jun 2017–May 2020
36-Month 		115.55"
(2,934.97mm)		 93.40"
(2,372.36mm)		 22.15"
(562.61mm)		 125th Driest
Driest since:
 1936
1st Wettest
Wettest to Date
 2020
Jun 2016–May 2020
48-Month 		154.22"
(3,917.19mm)		 124.54"
(3,163.32mm)		 29.68"
(753.87mm)		 124th Driest
Driest since:
 1937
1st Wettest
Wettest to Date
 2020
Jun 2015–May 2020
60-Month 		188.92"
(4,798.57mm)		 155.69"
(3,954.53mm)		 33.23"
(844.04mm)		 123rd Driest
Driest since:
 1934
1st Wettest
Wettest to Date
 2020

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