Frost dates in Sullivan City, TX
The average last spring frost in Sullivan City is around February 5 and the first fall frost is around December 20. That gives Sullivan City an average growing season of about 319 days.
Last spring frost
| Early (10% chance after) | January 9 |
|---|---|
| Average (50%) | February 5 |
| Late (90%) | February 15 |
First fall frost
| Early (10%) | November 28 |
|---|---|
| Average (50%) | December 20 |
| Late (90% chance before) | December 26 |