Massachusetts frost dates
Median last spring frost and first fall frost for 510 places in Massachusetts. Last frost ranges from Apr 4 in Boston to May 17 in Ashfield.
Largest cities
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Boston | Apr 4 | Nov 9 | 219 d | 7a |
| Worcester | Apr 23 | Oct 21 | 181 d | 6a |
| Springfield | May 3 | Oct 8 | 158 d | 6b |
| Lowell | Apr 30 | Oct 10 | 163 d | 6b |
| Cambridge | Apr 19 | Oct 23 | 187 d | 6b |
| New Bedford | Apr 29 | Oct 15 | 169 d | 7a |
| Dorchester | Apr 19 | Oct 23 | 187 d | 7a |
| Brockton | Apr 22 | Oct 19 | 180 d | 6b |
| Fall River | Apr 11 | Nov 2 | 205 d | 7a |
| Quincy | Apr 25 | Oct 22 | 180 d | 7a |
| Lynn | Apr 25 | Oct 20 | 178 d | 7a |
| Newton | Apr 19 | Oct 23 | 187 d | 6b |
| Somerville | Apr 4 | Nov 9 | 219 d | 7a |
| Lawrence | Apr 13 | Oct 28 | 198 d | 6b |
| Framingham | May 2 | Oct 6 | 157 d | 6b |
| Waltham | Apr 28 | Oct 10 | 165 d | 6b |
| Haverhill | May 1 | Oct 12 | 164 d | 6a |
| Malden | Apr 4 | Nov 9 | 219 d | 6b |
| Brookline | Apr 19 | Oct 23 | 187 d | 6b |
| Medford | Apr 4 | Nov 9 | 219 d | 6b |
| Taunton | May 2 | Oct 8 | 159 d | 6b |
| Chicopee | May 3 | Oct 8 | 158 d | 6a |
| Weymouth | Apr 25 | Oct 22 | 180 d | 6b |
| Revere | Apr 4 | Nov 9 | 219 d | 7a |
| Peabody | Apr 24 | Oct 17 | 176 d | 6b |
| Methuen | Apr 13 | Oct 28 | 198 d | 6b |
| Barnstable | Apr 22 | Oct 28 | 189 d | 7a |
| Everett | Apr 4 | Nov 9 | 219 d | 7a |
| Brighton | Apr 19 | Oct 23 | 187 d | 6b |
| Attleboro | Apr 27 | Oct 15 | 171 d | 6b |
| Pittsfield | May 5 | Oct 5 | 153 d | 5b |
| Salem | Apr 24 | Oct 17 | 176 d | 6b |
| Arlington | Apr 28 | Oct 10 | 165 d | 6b |
| Westfield | Apr 28 | Oct 17 | 172 d | 6a |
| Leominster | Apr 29 | Oct 11 | 165 d | 6a |
| Beverly | Apr 24 | Oct 17 | 176 d | 6b |
| Holyoke | May 3 | Oct 8 | 158 d | 6a |
| Fitchburg | May 1 | Oct 9 | 161 d | 6a |
| Billerica | Apr 27 | Oct 13 | 169 d | 6b |
| Amherst | May 5 | Oct 8 | 156 d | 6a |