Boston Weather in December

Average temperatures, rainfall and packing tips for Boston, United States in December

🌡️ Avg high
4°C
🌙 Avg low
-3°C
🌧️ Rainfall
~134 mm
📊 Warmth rank
#11 of 12

December in Boston at a glance

December in Boston is typically cold, with average daytime highs around 4°C and nights near -3°C. It is one of the cooler months of Boston's year.

December is one of the wetter months in Boston, with around 134 mm of rain - plan around showers.

What to pack for Boston in December

Boston - year at a glance

HighLow · December highlighted
-10°-5°0°5°10°15°20°25°30°35°3°-4°6°-4°9°1°14°4°20°11°27°16°30°20°26°17°23°14°17°8°12°4°4°-3°JanFebMarAprMayJunJulAugSepOctNovDec

Is December a good time to visit Boston?

🧳 December is cold in Boston. City sightseeing works fine if you dress for it, but pack properly and expect short days.

If your dates are flexible, the most comfortable months in Boston are usually May, June, July, August and September.

Other months in Boston

December in other cities

← Boston weather tomorrow (live)

FAQ

How hot is Boston in December?

In December, Boston averages a daytime high of about 4°C and a night-time low of around -3°C, based on recent historical data.

Does it rain in Boston in December?

December is one of the wetter months in Boston, with around 134 mm of rain - plan around showers.

Is December a good time to visit Boston?

December is cold in Boston. City sightseeing works fine if you dress for it, but pack properly and expect short days. If your dates are flexible, the most comfortable months in Boston are usually May, June, July, August and September.