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
The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 48.2°F (9°C) in November to an icy 37.9°F (3.3°C). Throughout December, the temperature in North Billerica falls to an average low of 27.3°F (-2.6°C).Humidity
In December, the average relative humidity in North Billerica is 77%.Rainfall
December is the month with the most rainfall in North Billerica. Rain falls for 10.9 days and accumulates 2.87" (73mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In North Billerica, in December, snow falls for 5.6 days, with typically accumulated 4.41" (112mm) of snow. Throughout the year, there are 32.6 snowfall days, and 21.61" (549mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December in North Billerica, sunrise is at 6:55 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:21 pm EST.
Sunshine
In December, the average sunshine in North Billerica, Massachusetts, is 4.9h.UV index
The months with the lowest UV index in North Billerica are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during December translates into the following guidance:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Always opt for UVA and UVB-resistant sunglasses on radiant days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
Is December cold in North Billerica?
What is the average humidity in December in North Billerica?
What is the rainiest month in North Billerica?
How many days does it rain in December in North Billerica?
How much does it snow in North Billerica in December?
What is the month with the shortest days in North Billerica?
How many hours of daylight does North Billerica have in December?
When are sunrise and sunset in December in North Billerica?
How many hours of sunshine does North Billerica have in December?
What are the months with the lowest UV index in North Billerica?
What is the UV index reading in December in North Billerica?
Average temperature in December
North Billerica, MA
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
North Billerica, 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 (29.92"Hg).
Average wind speed in December
North Billerica, MA
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
North Billerica, MA
- Average humidity in December: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
North Billerica, MA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
North Billerica, MA
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
North Billerica, MA
- Average snowfall in December: 4.41"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
North Billerica, MA
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
North Billerica, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
North Billerica, MA
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (13.6 days).
Average UV index in December
North Billerica, 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
North Billerica, MA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
North Billerica, MA
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
North Billerica, Massachusetts, USA
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