Climatological Rankings
Look up monthly U.S., Statewide, Divisional
, and Regional
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
Illinois Precipitation Rankings, September 1984
Driest
≤1⁄10
≤1⁄3
Normal
≥1⁄3
≥1⁄10
Wettest
More information on Climatological Rankings
| Period | Amount | 20th Century Average |
Departure | Rank (out of 119 years) |
Record | Wettest/Driest Since |
|---|---|---|---|---|---|---|
| Jul - Sep 1984 3-month period |
9.21" (233.93 mm) |
10.64" (270.26 mm) |
-1.43" (-36.33 mm) |
37th Driest | 1897 | Driest since: 1983 |
| 81st Wettest | 1993 | Wettest since: 1982 | ||||
| Ties: 2011
| ||||||


