Frost dates in Signal Mountain, TN
The average last spring frost in Signal Mountain is around March 28 and the first fall frost is around November 6. That gives Signal Mountain an average growing season of about 223 days.
Last spring frost
| Early (10% chance after) | March 14 |
|---|---|
| Average (50%) | March 28 |
| Late (90%) | April 17 |
First fall frost
| Early (10%) | October 24 |
|---|---|
| Average (50%) | November 6 |
| Late (90% chance before) | November 27 |