Frost dates in Mount Vernon, TX
The average last spring frost in Mount Vernon is around March 20 and the first fall frost is around November 13. That gives Mount Vernon an average growing season of about 238 days.
Last spring frost
| Early (10% chance after) | February 21 |
|---|---|
| Average (50%) | March 20 |
| Late (90%) | April 9 |
First fall frost
| Early (10%) | October 30 |
|---|---|
| Average (50%) | November 13 |
| Late (90% chance before) | December 1 |