Get the monthly weather forecast for Boston, MA, including daily high/low, historical averages, to help you plan ahead.

What is Boston weather in December like? Temperatures range from cool to frigid, with lots of sunny days and less snow than you might imagine.

In Boston during December average daily high temperatures decrease from 46°F to 39°F and it is overcast or mostly cloudy about 52% of the time.

The average temperature in December is around 4°C during the day with temperatures dropping below freezing at night with lows of -3°C. It's likely to snow in ...

The average temperature for Boston in December is a high of only 5.1°C, with an average low falling to a very cold -2.1°C. The average daily maximum for most ...

About 16 days during December will be clear or at least partly sunny with 15 days on average being mostly cloudy. How much Snow ...

The weather in Boston in December is really cold and breezy, with average highs of 41°F (5°C) and lows of 29°F (-2°C).

Boston averages one day in December when the thermometer reaches into the 60s Fahrenheit (over 15 degrees Celsius). A temperature above 70 °F (21 °C) in ...

Get the monthly weather forecast for Downtown Boston, MA, including daily high/low, historical averages, to help you plan ahead.

It can be very cold in December but Boston is very beautiful and heavenly at this time of the year. The average temperatures vary between 5°C to -2°C.