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 2020

View Period (Months):
Download: CSV JSON XML
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 2020
1-Month 		1.03"
(26.16mm)		 1.25"
(31.75mm)		 -0.22"
(-5.59mm)		 40th Driest
Driest since:
 1943
89th Wettest
Wettest since:
 2015
Nov–Dec 2020
2-Month 		2.81"
(71.37mm)		 3.10"
(78.74mm)		 -0.29"
(-7.37mm)		 50th Driest
Driest since:
 1976
79th Wettest
Wettest since:
 2015
Oct–Dec 2020
3-Month 		5.36"
(136.14mm)		 5.38"
(136.65mm)		 -0.02"
(-0.51mm)		 60th Driest
Driest since:
 1976
69th Wettest
Wettest since:
 1982
Ties: 1954
Sep–Dec 2020
4-Month 		8.15"
(207.01mm)		 8.74"
(222.00mm)		 -0.59"
(-14.99mm)		 50th Driest
Driest since:
 1976
79th Wettest
Wettest since:
 2019
Ties: 1901
Aug–Dec 2020
5-Month 		11.54"
(293.12mm)		 12.27"
(311.66mm)		 -0.73"
(-18.54mm)		 47th Driest
Driest since:
 1976
82nd Wettest
Wettest since:
 2019
Jul–Dec 2020
6-Month 		15.92"
(404.37mm)		 15.84"
(402.34mm)		 0.08"
(2.03mm)		 64th Driest
Driest since:
 1976
65th Wettest
Wettest since:
 1900
Jun–Dec 2020
7-Month 		20.16"
(512.06mm)		 19.89"
(505.21mm)		 0.27"
(6.85mm)		 65th Driest
Driest since:
 1976
64th Wettest
Wettest since:
 2010
May–Dec 2020
8-Month 		23.66"
(600.96mm)		 23.31"
(592.07mm)		 0.35"
(8.89mm)		 63rd Driest
Driest since:
 1976
66th Wettest
Wettest since:
 2019
Apr–Dec 2020
9-Month 		25.63"
(651.00mm)		 25.81"
(655.57mm)		 -0.18"
(-4.57mm)		 58th Driest
Driest since:
 1976
71st Wettest
Wettest since:
 2019
Mar–Dec 2020
10-Month 		27.98"
(710.69mm)		 27.52"
(699.01mm)		 0.46"
(11.68mm)		 65th Driest
Driest since:
 1910
64th Wettest
Wettest since:
 2019
Feb–Dec 2020
11-Month 		28.57"
(725.68mm)		 28.54"
(724.92mm)		 0.03"
(0.76mm)		 58th Driest
Driest since:
 1910
71st Wettest
Wettest since:
 2019
Ties: 1914
Jan–Dec 2020
12-Month 		30.12"
(765.05mm)		 29.68"
(753.87mm)		 0.44"
(11.18mm)		 67th Driest
Driest since:
 1910
62nd Wettest
Wettest since:
 2019
Jul 2019–Dec 2020
18-Month 		52.41"
(1,331.21mm)		 45.59"
(1,157.99mm)		 6.82"
(173.22mm)		 116th Driest
Driest since:
 1976
12th Wettest
Wettest since:
 2019
Jan 2019–Dec 2020
24-Month 		70.46"
(1,789.68mm)		 59.39"
(1,508.51mm)		 11.07"
(281.17mm)		 124th Driest
Driest since:
 1989
4th Wettest
Wettest since:
 2019
Jan 2018–Dec 2020
36-Month 		107.40"
(2,727.96mm)		 89.07"
(2,262.38mm)		 18.33"
(465.58mm)		 125th Driest
Driest since:
 1989
2nd Wettest
Wettest since:
 2019
Jan 2017–Dec 2020
48-Month 		141.14"
(3,584.96mm)		 118.71"
(3,015.23mm)		 22.43"
(569.73mm)		 123rd Driest
Driest since:
 1936
3rd Wettest
Wettest since:
 2019
Jan 2016–Dec 2020
60-Month 		177.53"
(4,509.26mm)		 148.36"
(3,768.34mm)		 29.17"
(740.92mm)		 123rd Driest
Driest since:
 1936
2nd Wettest
Wettest since:
 2019

Citing This Page