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 1989

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
December 1989
1-Month
0.59"
(14.99mm)
1.25"
(31.75mm)
-0.66"
(-16.76mm)
6th Driest
Driest since:
1943
123rd Wettest
Wettest since:
2015
Nov–Dec 1989
2-Month
1.90"
(48.26mm)
3.10"
(78.74mm)
-1.20"
(-30.48mm)
15th Driest
Driest since:
1976
114th Wettest
Wettest since:
2015
Oct–Dec 1989
3-Month
3.62"
(91.95mm)
5.38"
(136.65mm)
-1.76"
(-44.70mm)
13th Driest
Driest since:
1976
116th Wettest
Wettest since:
1982
Sep–Dec 1989
4-Month
6.52"
(165.61mm)
8.74"
(222.00mm)
-2.22"
(-56.39mm)
15th Driest
Driest since:
1976
114th Wettest
Wettest since:
2019
Aug–Dec 1989
5-Month
10.32"
(262.13mm)
12.27"
(311.66mm)
-1.95"
(-49.53mm)
30th Driest
Driest since:
1976
99th Wettest
Wettest since:
2019
Jul–Dec 1989
6-Month
12.93"
(328.42mm)
15.84"
(402.34mm)
-2.91"
(-73.92mm)
11th Driest
Driest since:
1976
118th Wettest
Wettest since:
1900
Jun–Dec 1989
7-Month
16.33"
(414.78mm)
19.89"
(505.21mm)
-3.56"
(-90.43mm)
10th Driest
Driest since:
1976
119th Wettest
Wettest since:
2010
May–Dec 1989
8-Month
19.62"
(498.35mm)
23.31"
(592.07mm)
-3.69"
(-93.72mm)
12th Driest
Driest since:
1976
117th Wettest
Wettest since:
2019
Apr–Dec 1989
9-Month
21.35"
(542.29mm)
25.81"
(655.57mm)
-4.46"
(-113.28mm)
9th Driest
Driest since:
1976
120th Wettest
Wettest since:
2019
Mar–Dec 1989
10-Month
22.97"
(583.44mm)
27.52"
(699.01mm)
-4.55"
(-115.57mm)
9th Driest
Driest since:
1910
120th Wettest
Wettest since:
2019
Feb–Dec 1989
11-Month
23.53"
(597.66mm)
28.54"
(724.92mm)
-5.01"
(-127.26mm)
7th Driest
Driest since:
1910
122nd Wettest
Wettest since:
2019
Jan–Dec 1989
12-Month
24.57"
(624.08mm)
29.68"
(753.87mm)
-5.11"
(-129.79mm)
7th Driest
Driest since:
1910
122nd Wettest
Wettest since:
2019
Jul 1988–Dec 1989
18-Month
41.71"
(1,059.43mm)
45.59"
(1,157.99mm)
-3.88"
(-98.56mm)
23rd Driest
Driest since:
1976
105th Wettest
Wettest since:
2019
Jan 1988–Dec 1989
24-Month
49.74"
(1,263.40mm)
59.39"
(1,508.51mm)
-9.65"
(-245.11mm)
1st Driest
Driest since:
1989
127th Wettest
Wettest since:
2019
Jan 1987–Dec 1989
36-Month
77.55"
(1,969.77mm)
89.07"
(2,262.38mm)
-11.52"
(-292.61mm)
1st Driest
Driest since:
1989
126th Wettest
Wettest since:
2019
Jan 1986–Dec 1989
48-Month
112.47"
(2,856.74mm)
118.71"
(3,015.23mm)
-6.24"
(-158.49mm)
20th Driest
Driest since:
1936
106th Wettest
Wettest since:
2019
Jan 1985–Dec 1989
60-Month
146.57"
(3,722.88mm)
148.36"
(3,768.34mm)
-1.79"
(-45.46mm)
43rd Driest
Driest since:
1936
82nd Wettest
Wettest since:
2019

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