Frost dates in Mitchellville, IA
The average last spring frost in Mitchellville is around April 22 and the first fall frost is around October 17. That gives Mitchellville an average growing season of about 178 days.
Last spring frost
| Early (10% chance after) | April 8 |
|---|---|
| Average (50%) | April 22 |
| Late (90%) | May 6 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | October 27 |