Massachusetts climate by month
January highs across Massachusetts range from 32°F in Worcester to 40°F in Edgartown; July highs from 75°F in Nantucket to 85°F in Springfield. The most common best months across these cities are May, June, September.
Massachusetts weather month by month
Average of the 9 Massachusetts cities on this site, computed from NOAA's unrounded values (so it can differ by a degree from averaging the rounded city figures); individual cities differ, sometimes a lot.
| Month | High | Low | Wet days | Snow |
|---|---|---|---|---|
| January | 37°F | 21°F | 11 | 13.7 in |
| February | 39°F | 22°F | 10 | 13.2 in |
| March | 46°F | 29°F | 11 | 9.0 in |
| April | 57°F | 38°F | 12 | 1.4 in |
| May | 67°F | 47°F | 12 | 0.0 in |
| June | 76°F | 57°F | 11 | 0.0 in |
| July | 82°F | 63°F | 10 | 0.0 in |
| August | 81°F | 62°F | 10 | 0.0 in |
| September | 74°F | 55°F | 10 | 0.0 in |
| October | 63°F | 44°F | 11 | 0.3 in |
| November | 52°F | 35°F | 11 | 0.9 in |
| December | 42°F | 27°F | 12 | 8.7 in |
Regional differences
Warmest and coolest Massachusetts city each month
| Month | Warmest | Coolest | Best month for |
|---|---|---|---|
| January | Edgartown 40°F | Worcester 32°F | – |
| February | Edgartown 42°F | Worcester 35°F | – |
| March | Brockton 48°F | Worcester 43°F | – |
| April | Springfield 61°F | Nantucket 52°F | – |
| May | Springfield 72°F | Nantucket 61°F | 6 cities |
| June | Springfield 80°F | Nantucket 69°F | 5 cities |
| July | Springfield 85°F | Nantucket 75°F | 1 city |
| August | Springfield 83°F | Nantucket 76°F | 1 city |
| September | Springfield 76°F | Nantucket 70°F | 4 cities |
| October | Brockton 64°F | Worcester 59°F | – |
| November | Edgartown 54°F | Worcester 48°F | – |
| December | Edgartown 46°F | Worcester 38°F | – |
By normal daily high. "Best month for": how many of the 9 cities have it among their best months by our comfort score.
Frost and humidity across Massachusetts
- Earliest typical last frostBoston: Apr 4
- Latest typical last frostSpringfield: May 3
- Most muggy daysSpringfield: 30 a year
- Fewest muggy daysWorcester: 23 a year
All Massachusetts cities
| City | Jan high | Jul high | Wet days/yr | Snow/yr | Best months |
|---|---|---|---|---|---|
| Boston | 37°F | 82°F | 128 | 49.2 in | May, Jun, Sep |
| Brockton | 39°F | 84°F | 133 | 49.5 in | May |
| Edgartown | 40°F | 80°F | 128 | 25.3 in | Jun, Sep |
| Lowell | 34°F | 85°F | 127 | 63.5 in | May |
| Nantucket | 40°F | 75°F | 141 | 25.3 in | Jul, Aug |
| New Bedford | 39°F | 83°F | 141 | 37.2 in | Jun, Sep |
| Quincy | 38°F | 83°F | 128 | 49.2 in | May, Jun |
| Springfield | 35°F | 85°F | 130 | 51.7 in | May |
| Worcester | 32°F | 80°F | 137 | 72.9 in | May, Jun, Sep |
Also covered: Cambridge (see Boston), Lynn (see Boston). These cities use the same weather stations as the city named.