Climatological Rankings

Look up monthly U.S., Statewide, DivisionalClimate Divisions, and RegionalClimate Regions Temperature, Precipitation, Degree Days, and Palmer (Drought) rankings for 1-12, 18, 24, 36, 48, 60-month, and Year-to-Date time periods. Data and statistics are as of January 1895.
Please note, Degree Days are not available for Agricultural Belts

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Illinois Precipitation Rankings, September 1990


Driest
110
13
Normal
13
110
Wettest

More information on Climatological Rankings

Period Amount 20th Century
Average
Departure Rank
(out of 119 years)
Record Wettest/Driest
Since
Jul - Sep 1990
3-month period
9.75"
(247.65 mm)
10.64"
(270.26 mm)
-0.89"
(-22.61 mm)
45th Driest 1897 Driest since: 1988
74th Wettest 1993 Wettest since: 1989