Massachusetts weather in December

The state broadly agrees with itself in December: afternoons run 45° in Cape Cod and 42° in Boston, with everywhere else in between.

Based on 2 weather stations. Two stations — Boston and the Cape, where the ocean softens winter and holds spring back; the Berkshires out west run colder than both.

Boston

Highs near 42°, nights around 29°, and 9.0 in of snow in a typical December.

Place	Highs / lows	Wet days	Snow	The short version
Boston	42° / 29°	4	9.0 in	Wet, dark, festive — the snow may or may not show.

Cape Cod

Highs near 45°, nights around 29°, and 4.7 in of rain in a typical December.

Place	Highs / lows	Wet days	The short version
Cape Cod	45° / 29°	13	Soggy, windswept, and the towns have gone properly quiet.

Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.

Where to go in December, across the whole country ›