Massachusetts weather in December 2020

Below are average maximum temperatures at popular destinations in Massachusetts in December. Select a destination to see more weather parameters.

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The December weather guide for Massachusetts shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How cold is it in Massachusetts in December?

Daytime temperatures usually reach 4°C in Boston, Massachusetts in December, falling to -5°C at night.

How sunny is it in Massachusetts in December?

There are normally 5 hours of bright sunshine each day in Boston, Massachusetts in December - that's 49% of daylight hours.

Is the sea cold around Massachusetts in December?

The average sea temperature around Boston, Massachusetts in December is 7°C.

Does it rain in Massachusetts in December?

There are usually 12 days with some rain in Boston, Massachusetts in December and the average monthly rainfall is 105mm.

Massachusetts sunrise & sunset times for December 2020

Browse the sunrise & sunset times for Massachusetts in December 2020. Select a month to view Massachusetts sunrise & sunset times for the next twelve months. The Massachusetts sunrise & sunset times shown below are for Boston.


Date Sunrise times Sunset times
Tuesday, 1st December 2020 06:54 16:12
Wednesday, 16th December 2020 07:07 16:13
Thursday, 31st December 2020 07:13 16:22
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Metric (°C / mm)  |  Imperial (°F / inches)

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