December weather forecastBridgewater, MA
December
Weather in December
December, the first month of the winter in Bridgewater, is also a wintry month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 40.5°F (4.7°C).Temperature
With December's arrival, Bridgewater sees a decrease in average high-temperatures, moving from a cool 50.4°F (10.2°C) in November to an icy 40.5°F (4.7°C). Throughout the month of December, Bridgewater witnesses an average temperature of 29.7°F (-1.3°C).Humidity
In Bridgewater, the average relative humidity in December is 77%.Rainfall
The month with the most rainfall is December, when the rain falls for 10.4 days and typically aggregates up to 3.11" (79mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Bridgewater, in December, during 4.5 snowfall days, 2.52" (64mm) of snow is typically accumulated. Throughout the year, in Bridgewater, there are 27.4 snowfall days, and 15" (381mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:52 am and sunset at 4:13 pm. On the last day of December, sunrise is at 7:11 am and sunset at 4:22 pm EST.
Sunshine
The average sunshine in December 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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bridgewater, MA
- Average high temperature in December: 40.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Bridgewater, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Bridgewater, MA
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Bridgewater, MA
- Average humidity in December: 77%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Bridgewater, MA
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Bridgewater, MA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Bridgewater, MA
- Average snowfall in December: 2.52"
The month with the highest snowfall is March (4.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Bridgewater, MA
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (7.4 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
Bridgewater, 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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Bridgewater, MA
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in December
Bridgewater, 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
Bridgewater, MA
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Bridgewater, 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).





