Massachusetts frost dates: F
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Fairhaven | Apr 11 | Nov 5 | 208 d | 7a |
| Fall River | Apr 11 | Nov 2 | 205 d | 7a |
| Falmouth | Apr 11 | Nov 11 | 214 d | 7a |
| Fayville | Apr 26 | Oct 12 | 169 d | 6b |
| Feeding Hills | May 3 | Oct 8 | 158 d | 6b |
| Fiskdale | Apr 28 | Oct 15 | 170 d | 6a |
| Fitchburg | May 1 | Oct 9 | 161 d | 6a |
| Florence | May 5 | Oct 8 | 156 d | 6a |
| Forestdale | Apr 26 | Oct 26 | 183 d | 7a |
| Foxboro | Apr 27 | Oct 15 | 171 d | 6b |
| Framingham | May 2 | Oct 6 | 157 d | 6b |
| Franklin | Apr 30 | Oct 9 | 162 d | 6b |