Frost dates in Mountain City, TN
The average last spring frost in Mountain City is around May 6 and the first fall frost is around October 7. That gives Mountain City an average growing season of about 154 days.
Last spring frost
| Early (10% chance after) | April 16 |
|---|---|
| Average (50%) | May 6 |
| Late (90%) | May 23 |
First fall frost
| Early (10%) | September 23 |
|---|---|
| Average (50%) | October 7 |
| Late (90% chance before) | October 21 |