Frost dates · 35 cities · zones 5b–7a

Massachusetts frost dates, city by city

Median last spring frost across 35 Massachusetts cities runs from April 4 in Boston to May 5 in Amherst.

City	Zone	Last frost median	First frost median	Season
Boston	7a	Apr 4	Nov 9	218 d
Worcester	6a	Apr 23	Oct 21	181 d
Springfield	6a	May 3	Oct 8	158 d
Cambridge	6b	Apr 19	Oct 23	185 d
Lowell	6b	Apr 30	Oct 10	164 d
Brockton	6b	Apr 22	Oct 19	178 d
Lynn	7a	Apr 25	Oct 20	176 d
Quincy	7a	Apr 25	Oct 22	177 d
New Bedford	7a	Apr 29	Oct 15	167 d
Fall River	7a	Apr 29	Oct 15	167 d
Newton	6b	Apr 19	Oct 23	185 d
Lawrence	6b	Apr 13	Oct 28	198 d
Somerville	7a	Apr 4	Nov 9	218 d
Framingham	6b	Apr 26	Oct 12	169 d
Haverhill	6a	May 1	Oct 12	163 d
Malden	6b	Apr 4	Nov 9	218 d
Waltham	6b	Apr 28	Oct 10	165 d
Taunton	6b	Apr 22	Oct 19	179 d
Revere	7a	Apr 4	Nov 9	218 d
Weymouth	6b	Apr 25	Oct 22	177 d
Medford	6b	Apr 4	Nov 9	218 d
Peabody	6b	Apr 24	Oct 17	177 d
Chicopee	6a	May 3	Oct 8	158 d
Methuen	6b	Apr 13	Oct 28	198 d
Everett	7a	Apr 4	Nov 9	218 d
Barnstable	7a	Apr 16	Oct 30	195 d
Attleboro	6b	Apr 27	Oct 15	168 d
Salem	7a	Apr 25	Oct 20	176 d
Leominster	6a	Apr 29	Oct 11	164 d
Woburn	6b	Apr 25	Oct 17	174 d
Beverly	6b	May 4	Oct 12	160 d
Pittsfield	5b	May 5	Oct 5	152 d
Marlborough	6b	May 2	Oct 6	156 d
Fitchburg	6a	Apr 29	Oct 11	164 d
Amherst	6a	May 5	Oct 8	156 d

Medians from NOAA NCEI 1991–2020 U.S. Climate Normals at each city's nearest qualifying station; zones from the 2023 USDA Plant Hardiness Zone Map. Open a city for the 1-in-10-year dates, the station, and a planting calendar for every sauce crop.

All states →Build a plan from your ZIP →Earliest: Boston (Apr 4) · Latest: Amherst (May 5)