Frost dates in Mount Pleasant, IA
The average last spring frost in Mount Pleasant is around April 24 and the first fall frost is around October 12. That gives Mount Pleasant an average growing season of about 171 days.
Last spring frost
| Early (10% chance after) | April 7 |
|---|---|
| Average (50%) | April 24 |
| Late (90%) | May 7 |
First fall frost
| Early (10%) | September 27 |
|---|---|
| Average (50%) | October 12 |
| Late (90% chance before) | October 28 |