To assist Massachusetts gardeners, Plantmaps has derived zones indicating the average number of days each year that an area experiences temperatures over 86 degrees F. These zones are derived from the historical climate data from the National Weather Service.
Plantmaps Heat Zone 1< 1 days > 86°F | Plantmaps Heat Zone 21 - 7 days > 86°F | Plantmaps Heat Zone 38 - 14 days > 86°F |
Boston - Heat Zone 1
Brockton - Heat Zone 1
Cambridge - Heat Zone 1
Fall River - Heat Zone 1
Lowell - Heat Zone 1
Lynn - Heat Zone 1
New Bedford - Heat Zone 1
Newton - Heat Zone 1
Quincy - Heat Zone 1
Somerville - Heat Zone 1
Springfield - Heat Zone 1
Worcester - Heat Zone 1