Boston
December
Weather in Boston for December 2026
Your guide to Boston weather in December - trends and predictions
In general, the average temperature in Boston at the beginning of December is 10.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 7.6 °C by the end of December.
The climate of Boston in December is notably wet, with an average of 15 rainy days, and a total of 64.4 mm of precipitation.
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Temperatures
Rain 🌧️
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16
Dry days
15
Rainy days
0
Snow days
9°/5°
Temperatures
27 km/h
Avg max wind
85 %
Avg humidity
Boston Weather December
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Temperatures trend during December in Boston
See the weather trend as well as the moving average line
December weather in Boston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate rain at times | 12° /7° | 3.1 mm | 3 | |
| 2 Dec. |  Patchy rain possible | 10° /4° | 0.6 mm | 3 | |
| 3 Dec. |  Overcast | 7° /2° | 0.2 mm | 2 | |
| 4 Dec. | Overcast | 8° /2° | 2.2 mm | 2 | |
| 5 Dec. | Moderate or heavy rain shower | 12° /5° | 10.9 mm | 3 | |
| 6 Dec. | Overcast | 9° /6° | 7.1 mm | 3 | |
| 7 Dec. | Moderate rain at times | 13° /6° | 4.7 mm | 3 | |
| 8 Dec. | Moderate or heavy rain shower | 10° /7° | 6.7 mm | 3 | |
| 9 Dec. | Patchy rain possible | 10° /7° | 5.2 mm | 3 | |
| 10 Dec. | Overcast | 9° /6° | 0.1 mm | 3 | |
| 11 Dec. | Patchy rain possible | 8° /5° | 0.1 mm | 3 | |
| 12 Dec. | Patchy rain possible | 9° /6° | 1.5 mm | 2 | |
| 13 Dec. | Patchy rain possible | 7° /5° | 0.1 mm | 3 | |
| 14 Dec. | Overcast | 8° /5° | 0.3 mm | 2 | |
| 15 Dec. | Overcast | 11° /6° | 0 mm | 3 | |
| 16 Dec. | Overcast | 11° /5° | 3 mm | 3 | |
| 17 Dec. | Overcast | 9° /4° | 0.6 mm | 3 | |
| 18 Dec. | Patchy rain possible | 12° /7° | 13.7 mm | 3 | |
| 19 Dec. |  Partly cloudy | 8° /3° | 2.2 mm | 3 | |
| 20 Dec. | Patchy rain possible | 7° /2° | 0.2 mm | 1 | |
| 21 Dec. | Patchy rain possible | 10° /5° | 2.3 mm | 2 | |
| 22 Dec. | Moderate rain at times | 7° /4° | 0.8 mm | 1 | |
| 23 Dec. | Patchy rain possible | 6° /3° | 0.1 mm | 1 | |
| 24 Dec. | Overcast | 9° /5° | 0 mm | 2 | |
| 25 Dec. |  Sunny | 8° /5° | 0 mm | 2 | |
| 26 Dec. | Sunny | 8° /4° | 0 mm | 2 | |
| 27 Dec. | Partly cloudy | 7° /4° | 0 mm | 2 | |
| 28 Dec. |  Cloudy | 7° /3° | 0.1 mm | 1 | |
| 29 Dec. | Partly cloudy | 8° /4° | 0 mm | 2 | |
| 30 Dec. | Partly cloudy | 7° /2° | 0 mm | 2 | |
| 31 Dec. | Patchy rain possible | 8° /3° | 0.3 mm | 2 | |
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Important Notice
Our weather forecast for Boston 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 Boston forecast closer to your planned date for the most up-to-date weather information.
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Boston in December - FAQ
What are the expected maximum and minimum temperatures in Boston during December?
During December, expect a variety of temperatures with highs around 9° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Boston during December?
Moderate rainfall is anticipated in Boston during December, with a total of 64.4 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
Will it snow in Boston in December 2026?
Boston typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Boston during December?
The average wind speed in Boston during December is 27 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Boston
Explore the daily rainfall trends and prepare for Bostons December weather 💧
Typically, Boston has 15 rainy days in December with a total of 64.4 mm of rainfall.
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