Frost dates in Mount Calm, TX
The average last spring frost in Mount Calm is around March 13 and the first fall frost is around November 16. That gives Mount Calm an average growing season of about 248 days.
Last spring frost
| Early (10% chance after) | February 22 |
|---|---|
| Average (50%) | March 13 |
| Late (90%) | March 29 |
First fall frost
| Early (10%) | October 30 |
|---|---|
| Average (50%) | November 16 |
| Late (90% chance before) | December 4 |