Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Upper Midwest Climate Region

Precipitation Rankings, December 2019

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
December 2019
1-Month		2.25"
(57.15mm)		1.25"
(31.75mm)		1.00"
(25.40mm)		124th Driest
Driest since:
1943
5th Wettest
Wettest since:
2015
Nov–Dec 2019
2-Month		4.02"
(102.11mm)		3.10"
(78.74mm)		0.92"
(23.37mm)		102nd Driest
Driest since:
1976
27th Wettest
Wettest since:
2015
Oct–Dec 2019
3-Month		8.81"
(223.77mm)		5.38"
(136.65mm)		3.43"
(87.12mm)		126th Driest
Driest since:
1976
3rd Wettest
Wettest since:
1982
Sep–Dec 2019
4-Month		14.94"
(379.48mm)		8.74"
(222.00mm)		6.20"
(157.48mm)		128th Driest
Driest since:
1976
1st Wettest
Wettest to Date
2019
Aug–Dec 2019
5-Month		18.16"
(461.26mm)		12.27"
(311.66mm)		5.89"
(149.60mm)		128th Driest
Driest since:
1976
1st Wettest
Wettest to Date
2019
Jul–Dec 2019
6-Month		22.29"
(566.17mm)		15.84"
(402.34mm)		6.45"
(163.83mm)		127th Driest
Driest since:
1976
2nd Wettest
Wettest since:
1900
Jun–Dec 2019
7-Month		26.13"
(663.70mm)		19.89"
(505.21mm)		6.24"
(158.49mm)		126th Driest
Driest since:
1976
3rd Wettest
Wettest since:
2010
May–Dec 2019
8-Month		31.61"
(802.89mm)		23.31"
(592.07mm)		8.30"
(210.82mm)		128th Driest
Driest since:
1976
1st Wettest
Wettest to Date
2019
Apr–Dec 2019
9-Month		34.83"
(884.68mm)		25.81"
(655.57mm)		9.02"
(229.11mm)		128th Driest
Driest since:
1976
1st Wettest
Wettest to Date
2019
Mar–Dec 2019
10-Month		36.57"
(928.88mm)		27.52"
(699.01mm)		9.05"
(229.87mm)		128th Driest
Driest since:
1910
1st Wettest
Wettest to Date
2019
Feb–Dec 2019
11-Month		39.01"
(990.85mm)		28.54"
(724.92mm)		10.47"
(265.93mm)		128th Driest
Driest since:
1910
1st Wettest
Wettest to Date
2019
Jan–Dec 2019
12-Month		40.34"
(1,024.64mm)		29.68"
(753.87mm)		10.66"
(270.77mm)		128th Driest
Driest since:
1910
1st Wettest
Wettest to Date
2019
Jul 2018–Dec 2019
18-Month		61.81"
(1,569.97mm)		45.59"
(1,157.99mm)		16.22"
(411.98mm)		127th Driest
Driest since:
1976
1st Wettest
Wettest to Date
2019
Jan 2018–Dec 2019
24-Month		77.28"
(1,962.91mm)		59.39"
(1,508.51mm)		17.89"
(454.40mm)		127th Driest
Driest since:
1989
1st Wettest
Wettest to Date
2019
Jan 2017–Dec 2019
36-Month		111.02"
(2,819.91mm)		89.07"
(2,262.38mm)		21.95"
(557.53mm)		126th Driest
Driest since:
1989
1st Wettest
Wettest to Date
2019
Jan 2016–Dec 2019
48-Month		147.41"
(3,744.21mm)		118.71"
(3,015.23mm)		28.70"
(728.98mm)		125th Driest
Driest since:
1936
1st Wettest
Wettest to Date
2019
Jan 2015–Dec 2019
60-Month		181.70"
(4,615.18mm)		148.36"
(3,768.34mm)		33.34"
(846.84mm)		124th Driest
Driest since:
1936
1st Wettest
Wettest to Date
2019

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