Climate at a Glance

Regional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.


Great Lakes Basin

Precipitation Rankings, December 2020

View Period (Months):All1234567891011121824364860
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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 2020
1-Month
1.92"
(48.77mm)
2.16"
(54.86mm)
-0.24"
(-6.09mm)
45th Driest Driest since: 2017 1943
83rd Wettest Wettest since: 2019 2008
Ties: 1941
Nov–Dec 2020
2-Month
4.22"
(107.19mm)
4.80"
(121.92mm)
-0.58"
(-14.73mm)
41st Driest Driest since: 2012 1917
87th Wettest Wettest since: 2019 1927
Oct–Dec 2020
3-Month
8.11"
(205.99mm)
7.55"
(191.77mm)
0.56"
(14.22mm)
70th Driest Driest since: 2010 1930
58th Wettest Wettest since: 2019 1985
Sep–Dec 2020
4-Month
10.97"
(278.64mm)
10.92"
(277.37mm)
0.05"
(1.27mm)
55th Driest Driest since: 2009 1908
73rd Wettest Wettest since: 2019 2019
Aug–Dec 2020
5-Month
14.57"
(370.08mm)
14.14"
(359.16mm)
0.43"
(10.92mm)
64th Driest Driest since: 2010 1930
64th Wettest Wettest since: 2019 1985
Jul–Dec 2020
6-Month
18.72"
(475.49mm)
17.40"
(441.96mm)
1.32"
(33.53mm)
82nd Driest Driest since: 2012 1930
46th Wettest Wettest since: 2019 1992
Jun–Dec 2020
7-Month
21.74"
(552.20mm)
20.87"
(530.10mm)
0.87"
(22.10mm)
72nd Driest Driest since: 2012 1930
56th Wettest Wettest since: 2019 2019
May–Dec 2020
8-Month
25.71"
(653.03mm)
24.09"
(611.89mm)
1.62"
(41.14mm)
83rd Driest Driest since: 2012 1930
45th Wettest Wettest since: 2019 2019
Apr–Dec 2020
9-Month
28.53"
(724.66mm)
26.88"
(682.75mm)
1.65"
(41.91mm)
81st Driest Driest since: 2012 1930
47th Wettest Wettest since: 2019 2019
Mar–Dec 2020
10-Month
31.62"
(803.15mm)
29.15"
(740.41mm)
2.47"
(62.74mm)
94th Driest Driest since: 2012 1930
34th Wettest Wettest since: 2019 2019
Feb–Dec 2020
11-Month
33.14"
(841.76mm)
30.81"
(782.57mm)
2.33"
(59.19mm)
93rd Driest Driest since: 2012 1930
35th Wettest Wettest since: 2019 2019
Jan–Dec 2020
12-Month
35.94"
(912.88mm)
32.78"
(832.61mm)
3.16"
(80.27mm)
104th Driest Driest since: 2016 1930
24th Wettest Wettest since: 2019 2019
Jul 2019–Dec 2020
18-Month
58.13"
(1,476.50mm)
50.20"
(1,275.08mm)
7.93"
(201.42mm)
122nd Driest Driest since: 2018 1930
5th Wettest Wettest since: 2019 2019
Ties: 1985
Jan 2019–Dec 2020
24-Month
78.59"
(1,996.19mm)
65.54"
(1,664.72mm)
13.05"
(331.47mm)
124th Driest Driest since: 2017 1963
3rd Wettest Wettest since: 2019 2019
Jan 2018–Dec 2020
36-Month
117.01"
(2,972.05mm)
98.29"
(2,496.57mm)
18.72"
(475.48mm)
124th Driest Driest since: 2018 1964
2nd Wettest Wettest since: 2019 2019
Jan 2017–Dec 2020
48-Month
158.15"
(4,017.01mm)
131.06"
(3,328.92mm)
27.09"
(688.09mm)
124th Driest Driest since: 2019 1936
1st Wettest Wettest to Date 2020
Jan 2016–Dec 2020
60-Month
193.94"
(4,926.08mm)
163.83"
(4,161.28mm)
30.11"
(764.80mm)
123rd Driest Driest since: 2019 1934
1st Wettest Wettest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Precipitation, published September 2022, retrieved on October 1, 2022 from https://www.ncdc.noaa.gov/cag/