Massachusetts (Boston)
December
Weather in Massachusetts for December 2025
Your guide to Massachusetts weather in December - trends and predictions
Massachusetts typically experiences moderate snowfall in December, with an average of 7 snowy days.
In general, the average temperature in Massachusetts at the beginning of December is 7 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 6.1 °F by the end of December.
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Snow Forecast ❄️
Temperatures
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9
Dry days
15
Rainy days
7
Snow days
6°/0°
Temperatures
20 km/h
Avg max wind
70 %
Avg humidity
Massachusetts in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  6° | 2  8° | 3  9° | 4 5° | 5  7° | 6  8° | |
| 7 6° | 8 7° | 9  7° | 10  8° | 11  12° | 12 9° | 13 7° |
| 14 5° | 15 5° | 16 6° | 17  9° | 18 6° | 19 5° | 20 3° |
| 21 3° | 22 3° | 23 4° | 24 2° | 25  5° | 26 4° | 27 5° |
| 28  7° | 29 6° | 30 8° | 31 8° |
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Temperatures trend during December in Massachusetts
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Overcast | 6° /1° | 1.1 mm | 0 cm | |
| Dec. 2 | Patchy rain possible | 8° /1° | 0.3 mm | 0 cm | |
| Dec. 3 | Sunny | 9° /1° | 10 mm | 0 cm | |
| Dec. 4 | Overcast | 5° /0° | 0.7 mm | 0 cm | |
| Dec. 5 | Partly cloudy | 7° /0° | 6.8 mm | 1 cm | |
| Dec. 6 | Heavy rain at times | 8° /1° | 1.9 mm | 0.3 cm | |
| Dec. 7 | Sunny | 6° /0° | 5.2 mm | 0 cm | |
| Dec. 8 | Patchy rain possible | 7° /0° | 1.5 mm | 0.9 cm | |
| Dec. 9 | Cloudy | 7° /0° | 6.3 mm | 0 cm | |
| Dec. 10 | Fog | 8° /2° | 5.8 mm | 0 cm | |
| Dec. 11 | Heavy rain | 12° /2° | 23.6 mm | 0 cm | |
| Dec. 12 | Cloudy | 9° /1° | 9.2 mm | 0 cm | |
| Dec. 13 | Cloudy | 7° /0° | 0.1 mm | 0 cm | |
| Dec. 14 | Sunny | 5° /-2° | 1.5 mm | 0.6 cm | |
| Dec. 15 | Sunny | 5° /-2° | 0.6 mm | 0 cm | |
| Dec. 16 | Overcast | 6° /2° | 8.5 mm | 0.1 cm | |
| Dec. 17 | Moderate or heavy snow showers | 9° /1° | 10.4 mm | 4.7 cm | |
| Dec. 18 | Cloudy | 6° /0° | 11 mm | 0 cm | |
| Dec. 19 | Overcast | 5° /-2° | 5.8 mm | 0 cm | |
| Dec. 20 | Sunny | 3° /-2° | 0.3 mm | 0 cm | |
| Dec. 21 | Overcast | 3° /-2° | 0 mm | 0 cm | |
| Dec. 22 | Sunny | 3° /-3° | 1.2 mm | 0 cm | |
| Dec. 23 | Sunny | 4° /-4° | 6 mm | 0 cm | |
| Dec. 24 | Overcast | 2° /-3° | 0.1 mm | 0 cm | |
| Dec. 25 | Moderate or heavy rain shower | 5° /-1° | 14.4 mm | 0.3 cm | |
| Dec. 26 | Overcast | 4° /-2° | 1.3 mm | 0 cm | |
| Dec. 27 | Sunny | 5° /-1° | 0 mm | 0 cm | |
| Dec. 28 | Light rain | 7° /-1° | 4.4 mm | 0 cm | |
| Dec. 29 | Partly cloudy | 6° /0° | 3.2 mm | 0 cm | |
| Dec. 30 | Overcast | 8° /1° | 10.2 mm | 0 cm | |
| Dec. 31 | Heavy rain at times | 8° /3° | 3.6 mm | 0 cm | |
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Important Notice
Our weather forecast for Massachusetts in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Massachusetts forecast closer to your planned date for the most up-to-date weather information.
Massachusetts in December - FAQ
What are the expected maximum and minimum temperatures in Massachusetts during December?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 0°.
How much rainfall should be expected in Massachusetts during December?
Significant rainfall exceeding 147.1 mm is expected in Massachusetts during December, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Massachusetts in December 2025?
Massachusetts experiences an average snowfall of 9.385 cm during December, occurring over 7 days.
What are the typical wind conditions in Massachusetts during December?
The average wind speed in Massachusetts during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
Massachusetts snow forecast December 2025
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December rainfall patterns in Massachusetts
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