Massachusetts Planting Zones
Massachusetts runs from zone 5b to zone 7b on the 2023 USDA map. Zone 6b is the most common, covering 42% of the state's ZIP codes. Boston is 7a, Worcester is 6a and Springfield is 6a.
Zones across Massachusetts
| Zone | Average coldest night | Share of Massachusetts ZIP codes |
|---|---|---|
| 5b | −15 to −10°F | 8% |
| 6a | −10 to −5°F | 23% |
| 6b | −5 to 0°F | 42% |
| 7a | 0 to 5°F | 23% |
| 7b | 5 to 10°F | 5% |
Planting zone for every city and town in Massachusetts
Each Massachusetts town uses the ZIP code at its center. Big towns can cross into the next half-zone, so look up your own ZIP if you're near a line.
| City | Zone | Average coldest night |
|---|---|---|
| Agawam Town | 6b | −5 to 0°F |
| Amesbury Town | 6a | −10 to −5°F |
| Amherst Town | 6a | −10 to −5°F |
| Attleboro | 6b | −5 to 0°F |
| Barnstable Town | 7a | 0 to 5°F |
| Beverly | 6b | −5 to 0°F |
| Boston | 7a | 0 to 5°F |
| Braintree Town | 6b | −5 to 0°F |
| Bridgewater Town | 6b | −5 to 0°F |
| Brockton | 6b | −5 to 0°F |
| Cambridge | 6b | −5 to 0°F |
| Chelsea | 7a | 0 to 5°F |
| Chicopee | 6a | −10 to −5°F |
| Easthampton Town | 6a | −10 to −5°F |
| Everett | 7a | 0 to 5°F |
| Fall River | 7a | 0 to 5°F |
| Fitchburg | 6a | −10 to −5°F |
| Framingham | 6b | −5 to 0°F |
| Franklin Town | 6b | −5 to 0°F |
| Gardner | 5b | −15 to −10°F |
| Gloucester | 7a | 0 to 5°F |
| Greenfield | 6a | −10 to −5°F |
| Haverhill | 6a | −10 to −5°F |
| Holyoke | 6a | −10 to −5°F |
| Lawrence | 6b | −5 to 0°F |
| Leominster | 6a | −10 to −5°F |
| Lowell | 6b | −5 to 0°F |
| Lynn | 7a | 0 to 5°F |
| Malden | 6b | −5 to 0°F |
| Marlborough | 6b | −5 to 0°F |
| Medford | 6b | −5 to 0°F |
| Melrose | 6b | −5 to 0°F |
| Methuen Town | 6b | −5 to 0°F |
| New Bedford | 7a | 0 to 5°F |
| Newburyport | 6b | −5 to 0°F |
| Newton | 6b | −5 to 0°F |
| North Adams | 5b | −15 to −10°F |
| North Attleborough Town | 6b | −5 to 0°F |
| Northampton | 6a | −10 to −5°F |
| Palmer Town | 6a | −10 to −5°F |
| Peabody | 6b | −5 to 0°F |
| Pittsfield | 5b | −15 to −10°F |
| Quincy | 7a | 0 to 5°F |
| Randolph Town | 6b | −5 to 0°F |
| Revere | 7a | 0 to 5°F |
| Salem | 7a | 0 to 5°F |
| Somerville | 7a | 0 to 5°F |
| Southbridge Town | 6b | −5 to 0°F |
| Springfield | 6a | −10 to −5°F |
| Taunton | 6b | −5 to 0°F |
| Waltham | 6b | −5 to 0°F |
| Watertown Town | 6b | −5 to 0°F |
| West Springfield Town | 6a | −10 to −5°F |
| Westfield | 6a | −10 to −5°F |
| Weymouth Town | 6b | −5 to 0°F |
| Winthrop Town | 7a | 0 to 5°F |
| Woburn | 6b | −5 to 0°F |
| Worcester | 6a | −10 to −5°F |
Source: USDA Plant Hardiness Zone Map, 2023, Agricultural Research Service, U.S. Department of Agriculture; ZIP code table from the PRISM Group, Oregon State University (accessed Oct 2026). This list is our own summary, not the official USDA map. See how we calculate.
Frequently asked questions
What planting zone is Massachusetts?
Massachusetts spans zones 5b to 7b on the 2023 USDA map, and zone 6b is the most common. Look up your ZIP code for your exact zone.
What zone is Boston, MA?
Boston is zone 7a, where the coldest night of an average winter falls from 0 to 5°F. Plants rated hardy to zone 7 or colder should survive a typical winter there.
More for Massachusetts: Massachusetts climate zones (insulation) · Last frost dates in Massachusetts · Frost line depth by state