Frost dates in Festus, MO
The average last spring frost in Festus is around April 16 and the first fall frost is around October 18. That gives Festus an average growing season of about 185 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 16 |
| Late (90%) | May 4 |
First fall frost
| Early (10%) | October 4 |
|---|---|
| Average (50%) | October 18 |
| Late (90% chance before) | October 31 |