Massachusetts in the United States of America sees its peak temperatures in July (29°C (84°F)) and its coolest in January (2°C (36°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from Boston, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Massachusetts, during the months of May, June and September you can expect comfortable weather, with average temperatures ranging from 20°C (68°F) to 24°C (75°F).
The colder period typically falls in the months of January, February, March and December.
When it comes to rainfall, Massachusetts experiences moderate variations in precipitation across the seasons. You can expect around 132 mm (5.2 in) of rain in December, dropping to 78 mm (3.1 in) in September.
Visitors hoping to maximize their time in the sun should consider planning their trip for May, when daylight hours are at their peak.
