Home › Guides › Massachusetts hardiness zones

What growing zone is my Massachusetts town in?

Reserve or join the waitlist

Massachusetts runs from zone 5b in the Berkshires and the northern hill towns to zone 7b on Cape Cod, Martha's Vineyard and Nantucket; most of eastern Massachusetts is zone 6b, with Boston and parts of the North and South Shores in 7a. A zone is set by the average coldest night of the year, in 5 °F bands, so it tells you which perennials survive winter, not when to plant.

We looked up the zone for 508 Massachusetts place names, one ZIP code each, in the 2023 plant hardiness zone data from Oregon State University's PRISM Climate Group, the data behind the 2023 USDA map. Where a town has several ZIP codes the zone can differ between them, and village names are listed separately. Looked up on November 4, 2026.

Zones in Massachusetts

Towns by zone

Zone 5b (-15 to -10 °F)

Adams, Ashfield, Athol, Baldwinville, Berkshire, Bernardston, Buckland, Charlemont, Cheshire, Colrain, Cummington, Dalton, Drury, East Otis, East Templeton, Gardner, Glendale, Heath, Hinsdale, Housatonic, Hubbardston, Lanesborough, Lee, Lenox, Lenox Dale, Mill River, Monroe Bridge, Monterey, New Salem, North Adams, Northfield, Orange, Otis, Pittsfield, Plainfield, Richmond, Rowe, Royalston, Savoy, Shelburne Falls, Shutesbury, South Lee, Stockbridge, Templeton, Tyringham, Warwick, Wendell, Wendell Depot, West Stockbridge, Williamstown, Winchendon, Windsor

Zone 6a (-10 to -5 °F)

Acton, Amesbury, Amherst, Ashburnham, Ashby, Ashley Falls, Auburn, Ayer, Barre, Becket, Belchertown, Blandford, Bondsville, Boxborough, Boylston, Brimfield, Brookfield, Charlton City, Chester, Chesterfield, Chicopee, Clinton, Conway, Deerfield, Devens, Dracut, Dunstable, East Brookfield, Easthampton, Erving, Fiskdale, Fitchburg, Florence, Gilbertville, Gill, Goshen, Granby, Granville, Great Barrington, Greenfield, Groton, Groveland, Hadley, Hampden, Hardwick, Harvard, Hatfield, Haverhill, Haydenville, Holland, Holyoke, Huntington, Indian Orchard, Jefferson, Lake Pleasant, Leeds, Leominster, Leverett, Littleton, Ludlow, Lunenburg, Merrimac, Middlefield, Millbury, Millers Falls, Monson, Montague, New Braintree, North Amherst, North Brookfield, North Egremont, North Hatfield, North Oxford, Northampton, Oakham, Palmer, Paxton, Pepperell, Petersham, Princeton, Russell, Rutland, Sandisfield, Sheffield, Shirley, Shrewsbury, South Barre, South Deerfield, South Egremont, South Hadley, Southampton, Southfield, Spencer, Sterling, Still River, Sturbridge, Sunderland, Thorndike, Three Rivers, Townsend, Turners Falls, Tyngsboro, Ware, Warren, West Boylston, West Brookfield, West Chesterfield, West Groton, West Hatfield, West Millbury, West Springfield, West Townsend, West Warren, Westfield, Westford, Westminster, Whately, Wheelwright, Wilbraham, Williamsburg, Worcester, Woronoco, Worthington

Zone 6b (-5 to 0 °F)

Abington, Accord, Agawam, Allston, Andover, Arlington, Arlington Heights, Ashland, Attleboro, Attleboro Falls, Auburndale, Avon, Babson Park, Bedford, Bellingham, Belmont, Berkley, Berlin, Beverly, Billerica, Blackstone, Bolton, Boxford, Braintree, Brant Rock, Bridgewater, Brighton, Brockton, Brookline, Brookline Village, Bryantville, Burlington, Byfield, Cambridge, Canton, Carlisle, Carver, Charlton, Charlton Depot, Chartley, Chelmsford, Cherry Valley, Chestnut Hill, Concord, Danvers, Dedham, Dorchester, Dorchester Center, Douglas, Dover, Dudley, East Bridgewater, East Longmeadow, East Taunton, East Walpole, Easton, Elmwood, Essex, Fayville, Feeding Hills, Foxboro, Framingham, Franklin, Georgetown, Grafton, Halifax, Hamilton, Hanover, Hanscom Afb, Hanson, Hathorne, Holbrook, Holden, Holliston, Hopedale, Hopkinton, Hudson, Hyde Park, Ipswich, Jamaica Plain, Lakeville, Lancaster, Lawrence, Leicester, Lexington, Lincoln, Linwood, Longmeadow, Lowell, Lynnfield, Malden, Manchaug, Mansfield, Marlborough, Mattapan, Maynard, Medfield, Medford, Medway, Melrose, Mendon, Methuen, Middleboro, Middleton, Milford, Millis, Millville, Milton, Milton Village, Monponsett, Natick, Needham, Needham Heights, New Town, Newbury, Newburyport, Newton, Newton Center, Newton Highlands, Newton Lower Falls, Newton Upper Falls, Newtonville, Nonantum, Norfolk, North Andover, North Attleboro, North Billerica, North Carver, North Chelmsford, North Dighton, North Easton, North Grafton, North Pembroke, North Uxbridge, Northborough, Northbridge, Norton, Norwood, Nutting Lake, Oxford, Peabody, Pembroke, Pinehurst, Plainville, Plympton, Prides Crossing, Quincy, Randolph, Raynham, Raynham Center, Reading, Readville, Rochdale, Rockland, Roslindale, Rowley, Salisbury, Saugus, Sharon, Sheldonville, Sherborn, South Carver, South Easton, South Grafton, South Hamilton, South Lancaster, South Walpole, South Weymouth, Southborough, Southbridge, Southwick, Springfield, Stoneham, Stoughton, Stow, Sudbury, Sutton, Taunton, Tewksbury, Topsfield, Upton, Uxbridge, Waban, Wakefield, Wales, Walpole, Waltham, Watertown, Waverley, Wayland, Webster, Wellesley, Wellesley Hills, Wenham, West Boxford, West Bridgewater, West Medford, West Newbury, West Newton, West Roxbury, Westborough, Weston, Westwood, Weymouth, Whitinsville, Whitman, Wilmington, Winchester, Woburn, Woodville, Wrentham

Zone 7a (0 to 5 °F)

Acushnet, Assonet, Barnstable, Boston, Buzzards Bay, Cataumet, Centerville, Charlestown, Chelsea, Cohasset, Cotuit, Cummaquid, Dartmouth, Dighton, Duxbury, East Falmouth, East Freetown, East Sandwich, East Wareham, East Weymouth, Everett, Fairhaven, Fall River, Falmouth, Forestdale, Gloucester, Green Harbor, Greenbush, Hingham, Hull, Humarock, Hyannis, Hyannis Port, Kingston, Lynn, Manchester, Manomet, Marblehead, Marion, Marshfield, Marshfield Hills, Marstons Mills, Mashpee, Mattapoisett, Minot, Monument Beach, Nahant, New Bedford, North Dartmouth, North Falmouth, North Marshfield, North Scituate, North Weymouth, Norwell, Oak Bluffs, Ocean Bluff, Onset, Osterville, Plymouth, Pocasset, Rehoboth, Revere, Rochester, Rockport, Roxbury, Roxbury Crossing, Sagamore, Sagamore Beach, Salem, Sandwich, Scituate, Seekonk, Somerset, Somerville, South Dartmouth, South Dennis, South Yarmouth, Swampscott, Swansea, Vineyard Haven, Wareham, West Barnstable, West Falmouth, West Hyannisport, West Tisbury, West Wareham, West Yarmouth, Westport, Westport Point, White Horse Beach, Winthrop, Yarmouth Port

Zone 7b (5 to 10 °F)

Brewster, Chatham, Chilmark, Cuttyhunk, Dennis, Dennis Port, East Dennis, East Orleans, Eastham, Edgartown, Harwich, Harwich Port, Menemsha, Nantucket, North Chatham, North Eastham, North Truro, Orleans, Provincetown, Siasconset, South Chatham, South Harwich, South Orleans, South Wellfleet, Truro, Wellfleet, West Chatham, West Dennis, West Harwich, Woods Hole

What it means for garlic and dahlias

• Garlic is planted in fall and overwinters in the ground. See how to plant garlic in Massachusetts and our seed garlic.
• Dahlias are half-hardy and the tubers should not be left to freeze, so in Massachusetts dig and store the tubers after the first frost.
• For planting dates, use your town's frost dates, not the zone.

We farm in Groton, Massachusetts, which is zone 6a (-10 to -5 °F). Download the full list: CSV.

Sources: PRISM Climate Group, Oregon State University, plant hardiness zone data (2023), via the open phzmapi.org ZIP lookup; ZIP codes and place names from GeoNames; USDA Plant Hardiness Zone Map. This is not the official USDA map; check yours there.