Frost dates in Smithville, TN
The average last spring frost in Smithville is around April 16 and the first fall frost is around October 20. That gives Smithville an average growing season of about 187 days.
Last spring frost
| Early (10% chance after) | April 6 |
|---|---|
| Average (50%) | April 16 |
| Late (90%) | May 1 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 20 |
| Late (90% chance before) | November 7 |