December weather forecastBraintree, MA
December
Weather in December
December, the first month of the winter in Braintree, is still a cold month, with temperature in the range of an average high of 40.1°F (4.5°C) and an average low of 29.8°F (-1.2°C).Temperature
The onset of December brings a small change in high-temperatures, falling from a frosty 49.5°F (9.7°C) in November to a wintry 40.1°F (4.5°C). An average minimum temperature of 29.8°F (-1.2°C) is recorded during the month of December.Humidity
In Braintree, the average relative humidity in December is 76%.Rainfall
In Braintree, in December, during 6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, there are 89.5 rainfall days, and 6.61" (168mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Braintree, in December, snow falls for 3.2 days, with typically accumulated 0.55" (14mm) of snow. In Braintree, during the entire year, snow falls for 18.1 days and aggregates up to 2.87" (73mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:53 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:22 pm EST.
Sunshine
In December, the average sunshine is 4.7h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Braintree, MA
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Braintree, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Braintree, MA
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Braintree, MA
- Average humidity in December: 76%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Braintree, MA
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is April (0.79").
The driest month (with the least rainfall) is September (0.31").
Average rainfall days in December
Braintree, MA
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Braintree, MA
- Average snowfall in December: 0.55"
The month with the highest snowfall is March (0.83").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Braintree, MA
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Braintree, MA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Braintree, MA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is April (17.8 days).
Average UV index in December
Braintree, MA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Braintree, MA
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Braintree, MA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





