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 2011

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 2011
1-Month
1.36"
(34.54mm)
1.25"
(31.75mm)
0.11"
(2.79mm)
74th Driest
Driest since:
1943
54th Wettest
Wettest since:
2015
Ties: 1970
Nov–Dec 2011
2-Month
3.09"
(78.49mm)
3.10"
(78.74mm)
-0.01"
(-0.25mm)
65th Driest
Driest since:
1976
63rd Wettest
Wettest since:
2015
Ties: 2009
Oct–Dec 2011
3-Month
4.68"
(118.87mm)
5.38"
(136.65mm)
-0.70"
(-17.78mm)
45th Driest
Driest since:
1976
83rd Wettest
Wettest since:
1982
Ties: 1904
Sep–Dec 2011
4-Month
6.98"
(177.29mm)
8.74"
(222.00mm)
-1.76"
(-44.71mm)
21st Driest
Driest since:
1976
107th Wettest
Wettest since:
2019
Ties: 1966
Aug–Dec 2011
5-Month
9.94"
(252.48mm)
12.27"
(311.66mm)
-2.33"
(-59.18mm)
18th Driest
Driest since:
1976
110th Wettest
Wettest since:
2019
Ties: 1933
Jul–Dec 2011
6-Month
13.93"
(353.82mm)
15.84"
(402.34mm)
-1.91"
(-48.52mm)
29th Driest
Driest since:
1976
99th Wettest
Wettest since:
1900
Jun–Dec 2011
7-Month
18.45"
(468.63mm)
19.89"
(505.21mm)
-1.44"
(-36.58mm)
36th Driest
Driest since:
1976
92nd Wettest
Wettest since:
2010
May–Dec 2011
8-Month
22.57"
(573.28mm)
23.31"
(592.07mm)
-0.74"
(-18.79mm)
45th Driest
Driest since:
1976
83rd Wettest
Wettest since:
2019
Apr–Dec 2011
9-Month
26.36"
(669.54mm)
25.81"
(655.57mm)
0.55"
(13.97mm)
67th Driest
Driest since:
1976
61st Wettest
Wettest since:
2019
Mar–Dec 2011
10-Month
28.11"
(713.99mm)
27.52"
(699.01mm)
0.59"
(14.98mm)
65th Driest
Driest since:
1910
63rd Wettest
Wettest since:
2019
Feb–Dec 2011
11-Month
29.24"
(742.70mm)
28.54"
(724.92mm)
0.70"
(17.78mm)
67th Driest
Driest since:
1910
61st Wettest
Wettest since:
2019
Jan–Dec 2011
12-Month
30.32"
(770.13mm)
29.68"
(753.87mm)
0.64"
(16.26mm)
68th Driest
Driest since:
1910
60th Wettest
Wettest since:
2019
Jul 2010–Dec 2011
18-Month
51.44"
(1,306.58mm)
45.59"
(1,157.99mm)
5.85"
(148.59mm)
109th Driest
Driest since:
1976
18th Wettest
Wettest since:
2019
Jan 2010–Dec 2011
24-Month
66.86"
(1,698.24mm)
59.39"
(1,508.51mm)
7.47"
(189.73mm)
112th Driest
Driest since:
1989
15th Wettest
Wettest since:
2019
Jan 2009–Dec 2011
36-Month
98.53"
(2,502.66mm)
89.07"
(2,262.38mm)
9.46"
(240.28mm)
110th Driest
Driest since:
1989
16th Wettest
Wettest since:
2019
Jan 2008–Dec 2011
48-Month
132.68"
(3,370.07mm)
118.71"
(3,015.23mm)
13.97"
(354.84mm)
113th Driest
Driest since:
1936
12th Wettest
Wettest since:
2019
Jan 2007–Dec 2011
60-Month
166.11"
(4,219.19mm)
148.36"
(3,768.34mm)
17.75"
(450.85mm)
115th Driest
Driest since:
1936
9th Wettest
Wettest since:
2019

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