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 start of December comes with a small reduction in the average high-temperature, subtly receding from a cool 50.9°F (10.5°C) in November to an icy 42.1°F (5.6°C). Throughout December, Somerset witnesses a consistent average low-temperature of 31.8°F (-0.1°C).Humidity
In Somerset, the average relative humidity in December is 76%.Rainfall
In Somerset, during December, the rain falls for 9.6 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Somerset, during the entire year, the rain falls for 135.4 days and collects up to 18.31" (465mm) of precipitation.Snowfall
Months with snowfall in Somerset are January through May, November and December. In Somerset, in December, during 3.3 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, there are 21.2 snowfall days, and 7.17" (182mm) of snow is accumulated.Daylight
December has the shortest days of the year in Somerset, with an average of 9h and 12min of daylight.On the first day of December in Somerset, sunrise is at 6:52 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:23 pm EST.
Sunshine
The months with the least sunshine in Somerset, Massachusetts, are February and December, with an average of 4.9h of sunshine.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Somerset. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 in December translates into these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun is at its strongest around midday, find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is it in Somerset in December?
What is the average humidity in December in Somerset?
How much does it rain in Somerset in December?
How many days does it snow in December in Somerset?
What is the month with the shortest days in Somerset?
What is the average length of the day in December in Somerset?
What time are sunrise and sunset in December in Somerset?
What are the months with the least sunshine in Somerset?
How long on average sun shines in December in Somerset?
What are the months with the lowest UV index in Somerset?
What is the UV index reading in December in Somerset?
Average temperature in December
Somerset, MA
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Somerset, 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
Somerset, MA
- Average wind speed in December: 10.3mph
The windiest months (with the highest average wind speed) are January, February and March (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in December
Somerset, MA
- Average humidity in December: 76%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Somerset, MA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in December
Somerset, MA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
Somerset, MA
- Average snowfall in December: 1.42"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Somerset, MA
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is January (5.9 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
Somerset, MA
- Average daylight in December: 9h and 1min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Somerset, MA
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.6 days).
Average UV index in December
Somerset, 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 and December (UV index 2).
Average cloud cover in December
Somerset, MA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Somerset, 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).
Somerset, Massachusetts, USA
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