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
Iowa Precipitation Rankings, September 1935
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 1935 3-month period |
9.16" (232.66 mm) |
11.38" (289.05 mm) |
-2.22" (-56.39 mm) |
33rd Driest | 1947 | Driest since: 1930 |
| 86th Wettest | 1993 | Wettest since: 1934 |


