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 1934
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 1934 3-month period |
11.85" (300.99 mm) |
11.38" (289.05 mm) |
0.47" (11.94 mm) |
73rd Driest | 1947 | Driest since: 1933 |
| 46th Wettest | 1993 | Wettest since: 1932 |


