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Weather in Boston for December 2025

Your guide to Boston weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Boston at the beginning of December is 9.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 8.4 °C by the end of December.

  • Rain 🌧️

  • 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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Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
9°/5°
Temperatures
Average wind speed
27 km/h
Avg max wind
Average humidity
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

Click on a date for more information
Date Weather Temperatures Rain UV More
1 Dec. Moderate rain at times
Moderate rain at times
13° /10° 0.8 mm 3
2 Dec. Patchy rain possible
Patchy rain possible
10° /4° 1.1 mm 3
3 Dec. Overcast
Overcast
5° /1° 0 mm 2
4 Dec. Overcast
Overcast
8° /2° 2.5 mm 2
5 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
13° /8° 13 mm 3
6 Dec. Overcast
Overcast
8° /5° 2.5 mm 2
7 Dec. Moderate rain at times
Moderate rain at times
11° /7° 7.4 mm 3
8 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
8° /6° 13.3 mm 2
9 Dec. Patchy rain possible
Patchy rain possible
7° /6° 0.8 mm 2
10 Dec. Overcast
Overcast
7° /6° 0.2 mm 2
11 Dec. Patchy rain possible
Patchy rain possible
7° /4° 0.1 mm 2
12 Dec. Patchy rain possible
Patchy rain possible
8° /7° 1.1 mm 2
13 Dec. Patchy rain possible
Patchy rain possible
7° /6° 0.2 mm 2
14 Dec. Overcast
Overcast
7° /4° 0.7 mm 2
15 Dec. Overcast
Overcast
11° /4° 0 mm 3
16 Dec. Overcast
Overcast
12° /7° 0 mm 3
17 Dec. Overcast
Overcast
10° /5° 0 mm 3
18 Dec. Patchy rain possible
Patchy rain possible
13° /7° 13.6 mm 3
19 Dec. Partly cloudy
Partly cloudy
7° /1° 4.3 mm 3
20 Dec. Patchy rain possible
Patchy rain possible
7° /1° 0.4 mm 2
21 Dec. Patchy rain possible
Patchy rain possible
11° /4° 0.1 mm 3
22 Dec. Moderate rain at times
Moderate rain at times
5° /2° 1.5 mm 2
23 Dec. Patchy rain possible
Patchy rain possible
4° /2° 0.2 mm 1
24 Dec. Overcast
Overcast
11° /5° 0 mm 3
25 Dec. Sunny
Sunny
10° /7° 0 mm 4
26 Dec. Sunny
Sunny
9° /5° 0 mm 3
27 Dec. Partly cloudy
Partly cloudy
7° /4° 0 mm 3
28 Dec. Cloudy
Cloudy
6° /4° 0.1 mm 2
29 Dec. Partly cloudy
Partly cloudy
8° /4° 0 mm 3
30 Dec. Partly cloudy
Partly cloudy
8° /4° 0 mm 3
31 Dec. Patchy rain possible
Patchy rain possible
11° /7° 0.6 mm 3
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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.

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 2025?
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 💧

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Location coordinates Where is Boston?

Get accurate weather forecasts for Boston, located at latitude 52.976 and longitude -0.027. Stay updated with localized weather information tailored for Boston.

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