Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's onset corresponds with a shift in the average high-temperature, moving from a chilly 48°F (8.9°C) in November to a wintry 38.5°F (3.6°C). In December, Byfield encounters an average low-temperature of 29.3°F (-1.5°C) during the night.Humidity
The average relative humidity in December is 77%.Rainfall
December is the month with the most rainfall in Byfield. Rain falls for 11.4 days and accumulates 2.95" (75mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Byfield. In Byfield, during December, snow falls for 5.8 days and regularly aggregates up to 3.39" (86mm) of snow. In Byfield, Massachusetts, during the entire year, snow falls for 33.6 days and aggregates up to 14.96" (380mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December in Byfield, sunrise is at 6:55 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:20 pm EST.
Sunshine
In Byfield, the average sunshine in December is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Byfield. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
Is December cold in Byfield?
What is the average humidity in December in Byfield?
What is the wettest month in Byfield?
How many days does it rain in December in Byfield?
How much does it snow in Byfield in December?
What is the month with the shortest days in Byfield?
What is the average length of the day in December in Byfield?
When are sunrise and sunset in December in Byfield?
How long on average sun shines in December in Byfield?
What is the month with the lowest UV index in Byfield?
How high is the UV index in December in Byfield?
Average temperature in December
Byfield, MA
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in December
Byfield, 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 (29.92"Hg).
Average wind speed in December
Byfield, MA
- Average wind speed in December: 10.9mph
The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in December
Byfield, MA
- Average humidity in December: 77%
The months with the highest relative humidity are February and June (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Byfield, MA
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in December
Byfield, MA
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is May (15.7 days).
The months with the least rainy days are January and February (8.6 days).
Average snowfall in December
Byfield, MA
- Average snowfall in December: 3.39"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Byfield, MA
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Byfield, MA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Byfield, MA
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is March (12.8 days).
Average UV index in December
Byfield, 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
Byfield, MA
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Byfield, 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).
Byfield, Massachusetts, USA
Weather forecast for your location
2. Allow the app to use your location
