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 1899

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
December 1899
1-Month		1.59"
(40.39mm)		1.25"
(31.75mm)		0.34"
(8.64mm)		97th Driest
Driest since:
1943
32nd Wettest
Wettest to Date
2015
Ties: 2000
Nov–Dec 1899
2-Month		2.52"
(64.01mm)		3.10"
(78.74mm)		-0.58"
(-14.73mm)		39th Driest
Driest since:
1976
90th Wettest
Wettest since:
2015
Oct–Dec 1899
3-Month		5.26"
(133.60mm)		5.38"
(136.65mm)		-0.12"
(-3.05mm)		55th Driest
Driest since:
1976
74th Wettest
Wettest since:
1982
Ties: 1967
Sep–Dec 1899
4-Month		7.25"
(184.15mm)		8.74"
(222.00mm)		-1.49"
(-37.85mm)		33rd Driest
Driest since:
1976
96th Wettest
Wettest since:
2019
Aug–Dec 1899
5-Month		11.01"
(279.65mm)		12.27"
(311.66mm)		-1.26"
(-32.01mm)		38th Driest
Driest since:
1976
91st Wettest
Wettest since:
2019
Jul–Dec 1899
6-Month		14.46"
(367.28mm)		15.84"
(402.34mm)		-1.38"
(-35.06mm)		37th Driest
Driest since:
1976
92nd Wettest
Wettest since:
1900
Jun–Dec 1899
7-Month		19.44"
(493.78mm)		19.89"
(505.21mm)		-0.45"
(-11.43mm)		54th Driest
Driest since:
1976
75th Wettest
Wettest since:
2010
May–Dec 1899
8-Month		24.13"
(612.90mm)		23.31"
(592.07mm)		0.82"
(20.83mm)		76th Driest
Driest since:
1976
53rd Wettest
Wettest since:
2019
Apr–Dec 1899
9-Month		26.12"
(663.45mm)		25.81"
(655.57mm)		0.31"
(7.88mm)		66th Driest
Driest since:
1976
63rd Wettest
Wettest since:
2019
Ties: 1975
Mar–Dec 1899
10-Month		28.12"
(714.25mm)		27.52"
(699.01mm)		0.60"
(15.24mm)		67th Driest
Driest since:
1910
62nd Wettest
Wettest since:
2019
Feb–Dec 1899
11-Month		29.11"
(739.39mm)		28.54"
(724.92mm)		0.57"
(14.47mm)		66th Driest
Driest since:
1910
63rd Wettest
Wettest since:
2019
Jan–Dec 1899
12-Month		29.98"
(761.49mm)		29.68"
(753.87mm)		0.30"
(7.62mm)		62nd Driest
Driest since:
1910
67th Wettest
Wettest since:
2019
Jul 1898–Dec 1899
18-Month		43.92"
(1,115.57mm)		45.59"
(1,157.99mm)		-1.67"
(-42.42mm)		33rd Driest
Driest since:
1976
95th Wettest
Wettest since:
2019
Jan 1898–Dec 1899
24-Month		57.72"
(1,466.09mm)		59.39"
(1,508.51mm)		-1.67"
(-42.42mm)		40th Driest
Driest since:
1989
88th Wettest
Wettest since:
2019
Jan 1897–Dec 1899
36-Month		85.98"
(2,183.89mm)		89.07"
(2,262.38mm)		-3.09"
(-78.49mm)		33rd Driest
Driest since:
1989
94th Wettest
Wettest since:
2019
Jan 1896–Dec 1899
48-Month		118.78"
(3,017.01mm)		118.71"
(3,015.23mm)		0.07"
(1.78mm)		52nd Driest
Driest since:
1936
74th Wettest
Wettest to Date
2019
Jan 1895–Dec 1899
60-Month		142.86"
(3,628.64mm)		148.36"
(3,768.34mm)		-5.50"
(-139.70mm)		28th Driest
Driest to Date
1936
97th Wettest
Wettest to Date
2019

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