Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. 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 2018

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 2018
1-Month
1.67"
(42.42mm)
1.25"
(31.75mm)
0.42"
(10.67mm)
100th Driest
Driest since:
1943
28th Wettest
Wettest since:
2015
Ties: 1992
Nov–Dec 2018
2-Month
3.42"
(86.87mm)
3.10"
(78.74mm)
0.32"
(8.13mm)
85th Driest
Driest since:
1976
43rd Wettest
Wettest since:
2015
Oct–Dec 2018
3-Month
7.95"
(201.93mm)
5.38"
(136.65mm)
2.57"
(65.28mm)
117th Driest
Driest since:
1976
11th Wettest
Wettest since:
1982
Sep–Dec 2018
4-Month
13.20"
(335.28mm)
8.74"
(222.00mm)
4.46"
(113.28mm)
126th Driest
Driest since:
1976
2nd Wettest
Wettest since:
2019
Ties: 1941
Aug–Dec 2018
5-Month
18.01"
(457.45mm)
12.27"
(311.66mm)
5.74"
(145.79mm)
126th Driest
Driest since:
1976
2nd Wettest
Wettest to Date
2019
Jul–Dec 2018
6-Month
21.47"
(545.34mm)
15.84"
(402.34mm)
5.63"
(143.00mm)
124th Driest
Driest since:
1976
4th Wettest
Wettest since:
1900
Jun–Dec 2018
7-Month
26.91"
(683.51mm)
19.89"
(505.21mm)
7.02"
(178.30mm)
126th Driest
Driest since:
1976
2nd Wettest
Wettest since:
2010
May–Dec 2018
8-Month
30.88"
(784.35mm)
23.31"
(592.07mm)
7.57"
(192.28mm)
125th Driest
Driest since:
1976
3rd Wettest
Wettest since:
2019
Apr–Dec 2018
9-Month
32.83"
(833.88mm)
25.81"
(655.57mm)
7.02"
(178.31mm)
125th Driest
Driest since:
1976
3rd Wettest
Wettest since:
2019
Mar–Dec 2018
10-Month
34.18"
(868.17mm)
27.52"
(699.01mm)
6.66"
(169.16mm)
124th Driest
Driest since:
1910
4th Wettest
Wettest since:
2019
Feb–Dec 2018
11-Month
35.86"
(910.84mm)
28.54"
(724.92mm)
7.32"
(185.92mm)
126th Driest
Driest since:
1910
2nd Wettest
Wettest to Date
2019
Jan–Dec 2018
12-Month
36.94"
(938.28mm)
29.68"
(753.87mm)
7.26"
(184.41mm)
126th Driest
Driest since:
1910
2nd Wettest
Wettest to Date
2019
Jul 2017–Dec 2018
18-Month
53.63"
(1,362.20mm)
45.59"
(1,157.99mm)
8.04"
(204.21mm)
118th Driest
Driest since:
1976
9th Wettest
Wettest since:
2019
Jan 2017–Dec 2018
24-Month
70.68"
(1,795.27mm)
59.39"
(1,508.51mm)
11.29"
(286.76mm)
125th Driest
Driest since:
1989
2nd Wettest
Wettest since:
2019
Ties: 2016
Jan 2016–Dec 2018
36-Month
107.07"
(2,719.58mm)
89.07"
(2,262.38mm)
18.00"
(457.20mm)
123rd Driest
Driest since:
1989
3rd Wettest
Wettest to Date
2019
Jan 2015–Dec 2018
48-Month
141.36"
(3,590.54mm)
118.71"
(3,015.23mm)
22.65"
(575.31mm)
123rd Driest
Driest since:
1936
2nd Wettest
Wettest to Date
2019
Jan 2014–Dec 2018
60-Month
176.09"
(4,472.69mm)
148.36"
(3,768.34mm)
27.73"
(704.35mm)
121st Driest
Driest since:
1936
3rd Wettest
Wettest to Date
2019

Citing This Page