Frost dates in Ionia, MO
The average last spring frost in Ionia is around April 10 and the first fall frost is around October 27. That gives Ionia an average growing season of about 200 days.
Last spring frost
| Early (10% chance after) | March 30 |
|---|---|
| Average (50%) | April 10 |
| Late (90%) | April 28 |
First fall frost
| Early (10%) | October 12 |
|---|---|
| Average (50%) | October 27 |
| Late (90% chance before) | November 5 |