Massachusetts climate
World Climates covers 4 places in Massachusetts. By annual mean temperature, the warmest is New Bedford (11 °C52 °F) and the coolest is Worcester (9 °C48 °F). The wettest is Boston with 1,207 mm48 in of precipitation per year, the driest New Bedford with 1,155 mm45 in.
The most common climate types (Köppen classification computed from these averages) are hot-summer humid continental (Dfa, 3 places) and temperate oceanic (Cfb, 1 place).
The highest monthly average high is in Springfield (29 °C85 °F in July); the lowest monthly average low is in Worcester (−9 °C15 °F in January).
Across the places in Massachusetts, the months that most often rank as the most comfortable are July, August and September (3, 3 and 4 of 4 places respectively).
Frequently asked questions
Which is the warmest place in Massachusetts?
By annual mean temperature, the warmest place in Massachusetts is New Bedford at 11 °C52 °F. The coolest is Worcester at 9 °C48 °F.
Where does it rain the most in Massachusetts?
Boston gets the most precipitation, 1,207 mm48 in in an average year. The driest place is New Bedford with 1,155 mm45 in.
How many places in Massachusetts does this site cover?
World Climates has climate data for 4 places in Massachusetts. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.
When is the best time to visit Massachusetts?
It depends on the place. Across Massachusetts, the months that most often rank as the most comfortable are July, August and September. Check the page of each city for its own best months.
Climate of every place in Massachusetts
| Place | Year | Max high | Min low | Precip. |
|---|---|---|---|---|
| Boston | 10 | 28 | −7 | 1,207 |
| Worcester | 9 | 28 | −9 | 1,183 |
| Springfield | 10 | 29 | −8 | 1,201 |
| New Bedford | 11 | 24 | −2 | 1,155 |
Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.
Other cities over 100,000 people
These cities share a NASA POWER grid cell with a larger place, so their averages are shown on that page:
Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.