Boston in december: average Weather, Temperature and Climate
Weather in Boston in december 2026
The weather in Boston in december comes from statistical datas on the past years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
very bad weather 191.6cm
Weather at 6am
34°F
Clear/Sunny
37% of time
20%
17%
10%
Weather at 12pm
41°F
Clear/Sunny
33% of time
26%
21%
8%
Weather at 6pm
38°F
Clear/Sunny
36% of time
22%
18%
9%
Weather at 3am
34°F
38%
19%
15%
12%
Evolution of daily average temperature and precipitation in Boston in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Boston in december.
The climate of Boston in december is very bad
In december in Boston, the climate is relatively dry (with 5.7in of precipitation over 7 days). It should be noted a worsening from the previous month since in november there is an average of 4.4in of precipitation over 6 days.
The climate is quite more than very fresh around this city the month of december. Bring warm clothes! The high seasonal norm is 41°F. The minimum is 34°F. Thus, the mean temperature average in december in Boston is 38°F. Note that seasonal normals in contrast with those observed in Boston in the month of december with a maximum record of 67°F in 2015 and a minimum record of 5°F in 2017. You can expect to have about 16 days with temperatures below 32°F, or 52% of the month.
In december in Boston, the days on average last 09:05. Sunrise is at 07:07 and sets at 16:12.
December: another location in the United States (USA)?
If you want to go to the United States (USA) in december, there are destinations with better weather than Boston:
In december, Miami (Florida) has perfect weather.
Furthermore, Hawaii (Honolulu), Houston, Myrtle Beach, Phoenix (Arizona), Carolina Beach and Dauphin Island (Alabama) have good weather.
Finally, California, Louisiana, Atlanta, Dallas, Austin and Big Bend National Park (Texas) have a tolerable climate, but better than Boston.
Seasonal average climate and temperature of Boston in december
Check below seasonal norms These statistics are compiled from the weather statements earlier years of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 38°F | ||||
| Highest temperature | 41°F | ||||
| Lowest temperature | 34°F | ||||
| Highest record temperature | 67°F (2015) | ||||
| Lowest record temperature | 5°F (2017) | ||||
| Number of days at +65°F | 0 day(s) (0%) | ||||
| Number of days at -32°F | 16 day(s) (52%) | ||||
| Sea temperature | |||||
| Average sea temperature | 47°F | ||||
| Lowest sea temperature | 42°F | ||||
| Highest sea temperature | 52°F | ||||
| Wind | |||||
| Wind speed | 20km/h | ||||
| Wind temperature | 27°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 5.7in | ||||
| Number of days with rainfall | 7 day(s) (22%) | ||||
| Record daily rainfall | 2.9in (2020) | ||||
| Snowfall | 191.6cm | ||||
| Other climate data | |||||
| Humidity | 82% | ||||
| Visibility | 8.65km | ||||
| Cloud cover | 48% | ||||
| UV index | 2 | ||||
| Daily sunshine hours | 7 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:07 | ||||
| Time of sunset | 16:12 | ||||
| Length of day | 09:05 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last december?
Here is the day by day recorded weather in Boston in december 2025:
36°F to 43°F
31°F to 45°F
32°F to 38°F
32°F to 38°F
16°F to 29°F
27°F to 34°F
27°F to 34°F
27°F to 34°F
16°F to 31°F
32°F to 45°F
29°F to 38°F
23°F to 34°F
25°F to 34°F
31°F to 32°F
18°F to 29°F
23°F to 32°F
29°F to 40°F
34°F to 45°F
50°F to 54°F
29°F to 38°F
40°F to 41°F
23°F to 31°F
29°F to 34°F
32°F to 41°F
27°F to 34°F
13°F to 20°F
23°F to 27°F
20°F to 36°F
41°F to 47°F
25°F to 34°F
23°F to 31°F
Map: other cities in the United States (USA) in december
Cities near Boston:
| Massachusetts in december | very bad weather |
| Hampton Beach in december | very bad weather |
| Provincetown in december | very bad weather |
| Rhode Island in december | very bad weather |
| Cape Cod National Seashore in december | very bad weather |
| Old Orchard Beach in december | very bad weather |
| Nantucket Island (Massachusetts) in december | very bad weather |
| Connecticut in december | very bad weather |
| Albany in december | very bad weather |
| Vermont in december | very bad weather |
| Brooklyn in december | very bad weather |
| New York City in december | very bad weather |
Click over cities on the map for information about the weather in december.
Boston
perfect weather
good
tolerable
bad
very bad
Weather data for Boston in december:
Weather data for Boston for december are derived from an average of the weather forecast since 2009 in Boston. There is a margin of error and these forecasts are to be considered as general information only. The weather in Boston can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Boston.