Frost dates in Jonesborough, TN
The average last spring frost in Jonesborough is around April 17 and the first fall frost is around October 23. That gives Jonesborough an average growing season of about 189 days.
Last spring frost
| Early (10% chance after) | April 2 |
|---|---|
| Average (50%) | April 17 |
| Late (90%) | May 7 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 23 |
| Late (90% chance before) | November 4 |