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.

Wisconsin

Precipitation Rankings, May 2018

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
May 2018
1-Month		4.70"
(119.38mm)		3.54"
(89.92mm)		1.16"
(29.46mm)		103rd Driest
Driest since:
1925
26th Wettest
Wettest since:
2004
Apr–May 2018
2-Month		7.23"
(183.64mm)		6.17"
(156.72mm)		1.06"
(26.92mm)		92nd Driest
Driest since:
1931
37th Wettest
Wettest since:
1973
Mar–May 2018
3-Month		8.15"
(207.01mm)		7.97"
(202.44mm)		0.18"
(4.57mm)		63rd Driest
Driest since:
1925
66th Wettest
Wettest since:
1973
Feb–May 2018
4-Month		9.66"
(245.36mm)		9.00"
(228.60mm)		0.66"
(16.76mm)		79th Driest
Driest since:
1925
50th Wettest
Wettest since:
1973
Ties: 1902
Jan–May 2018
5-Month		10.86"
(275.84mm)		10.15"
(257.81mm)		0.71"
(18.03mm)		79th Driest
Driest since:
1925
50th Wettest
Wettest since:
1973
Ties: 2016
Dec 2017–May 2018
6-Month		11.93"
(303.02mm)		11.41"
(289.81mm)		0.52"
(13.21mm)		71st Driest
Driest since:
1931
57th Wettest
Wettest since:
1973
Nov 2017–May 2018
7-Month		12.84"
(326.14mm)		13.40"
(340.36mm)		-0.56"
(-14.22mm)		47th Driest
Driest since:
1931
81st Wettest
Wettest since:
1973
Oct 2017–May 2018
8-Month		17.14"
(435.36mm)		15.83"
(402.08mm)		1.31"
(33.28mm)		87th Driest
Driest since:
1925
41st Wettest
Wettest since:
2019
Sep 2017–May 2018
9-Month		19.04"
(483.62mm)		19.60"
(497.84mm)		-0.56"
(-14.22mm)		52nd Driest
Driest since:
1925
76th Wettest
Wettest since:
2019
Aug 2017–May 2018
10-Month		23.14"
(587.76mm)		23.39"
(594.11mm)		-0.25"
(-6.35mm)		59th Driest
Driest since:
1931
69th Wettest
Wettest since:
2019
Jul 2017–May 2018
11-Month		27.60"
(701.04mm)		27.22"
(691.39mm)		0.38"
(9.65mm)		72nd Driest
Driest since:
1931
56th Wettest
Wettest since:
1973
Jun 2017–May 2018
12-Month		33.54"
(851.92mm)		31.35"
(796.29mm)		2.19"
(55.63mm)		89th Driest
Driest since:
1934
39th Wettest
Wettest since:
2019
Ties: 2002
Dec 2016–May 2018
18-Month		50.41"
(1,280.41mm)		42.74"
(1,085.60mm)		7.67"
(194.81mm)		119th Driest
Driest since:
1931
8th Wettest
Wettest since:
2017
Jun 2016–May 2018
24-Month		76.96"
(1,954.78mm)		62.67"
(1,591.82mm)		14.29"
(362.96mm)		123rd Driest
Driest since:
1931
4th Wettest
Wettest since:
2020
Jun 2015–May 2018
36-Month		114.43"
(2,906.52mm)		93.95"
(2,386.33mm)		20.48"
(520.19mm)		121st Driest
Driest since:
1911
5th Wettest
Wettest since:
2019
Jun 2014–May 2018
48-Month		148.44"
(3,770.38mm)		125.18"
(3,179.57mm)		23.26"
(590.81mm)		120th Driest
Driest since:
1934
5th Wettest
Wettest to Date
2020
Jun 2013–May 2018
60-Month		181.84"
(4,618.74mm)		156.40"
(3,972.56mm)		25.44"
(646.18mm)		119th Driest
Driest since:
1934
5th Wettest
Wettest to Date
2020

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