Frost dates in Bonne Terre, MO
The average last spring frost in Bonne Terre is around April 18 and the first fall frost is around October 15. That gives Bonne Terre an average growing season of about 180 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 18 |
| Late (90%) | May 3 |
First fall frost
| Early (10%) | September 30 |
|---|---|
| Average (50%) | October 15 |
| Late (90% chance before) | November 1 |