Vermont frost dates: J
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Jacksonville | May 14 | Oct 4 | 143 d | 5b |
| Jamaica | May 16 | Oct 2 | 139 d | 5a |
| Jeffersonville | May 9 | Oct 1 | 145 d | 5a |
| Jericho | May 23 | Sep 30 | 130 d | 5a |
| Johnson | May 9 | Oct 1 | 145 d | 5a |
| Jonesville | May 23 | Sep 30 | 130 d | 5a |