Boston weather in December
December in Boston averages 42°F by day and 29°F at night, with 4.3 inches of precipitation and 9.0 inches of snow. It is the 10th-warmest and 1st-wettest month of the year here.
- Average high
- 42°F-9° vs November
- Average low
- 29°F20 nights below freezing
- Precipitation
- 4.3 in7 days with 0.1 in. or more
- Snow
- 9.0 in0 days at 90°F+
Is December a good time to visit Boston?
December is cold, with highs around 42°F. The most comfortable months overall are May to October.
What to do in Boston in December
Mix it up: Museum of Fine Arts Boston, Isabella Stewart Gardner Museum, John F. Kennedy Presidential Library and Museum, Museum of Bad Art. All things to do in Boston.
On December 15 the sun rises at 7:06 am and sets at 4:12 pm, giving 9h 05m of daylight. Daylight all year.
What to pack for Boston in December
- A winter coat, hat, gloves and warm layers
- Expect nights below freezing
- An umbrella or rain jacket
- Waterproof boots for snow
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
December nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Boston | 42°F | 29°F | 4.3 in | |
| Cambridge, MA | 3 mi | 42°F | 29°F | 4.3 in |
| Somerville, MA | 3 mi | 42°F | 29°F | 4.3 in |
| Newton, MA | 7 mi | 42°F | 29°F | 4.3 in |
| Quincy, MA | 7 mi | 42°F | 29°F | 4.3 in |
| Lynn, MA | 10 mi | 42°F | 29°F | 4.3 in |
| Brockton, MA | 19 mi | 40°F | 26°F | 5.3 in |
Warmer places in December
Big cities with comfortable December highs between 68°F and 86°F:
Frequently asked questions
What is the weather like in Boston in December?
In December, Boston averages a high of 42°F and a low of 29°F, with 4.3 inches of precipitation and 9.0 inches of snow (NOAA 1991-2020 normals).
Is December a good time to visit Boston?
December is cool to cold in Boston, with average highs of 42°F. Pack warm layers.
Does it snow in Boston in December?
Yes. December averages 9.0 inches of snow.
Before and after: Boston in November and Boston in January. All twelve months: Boston weather by month.
NOAA NCEI 1991-2020 climate normals, station Boston Logan Intl. Airport, MA, 2.5 miles from the city center.