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 arrival comes with a decrease in the average high-temperature, moving from a chilly 47.3°F (8.5°C) in November to a wintry 36.7°F (2.6°C). In Dunstable, the average temperature during the nights of December drops to a freezing cold 25.7°F (-3.5°C).Humidity
The average relative humidity in December is 79%.Rainfall
The months with the most rainfall in Dunstable are October and December, with an average 2.83" (72mm) of precipitation.Snowfall
Months with snowfall in Dunstable, Massachusetts, are January through May, October through December. In Dunstable, in December, snow falls for 5.5 days, with typically accumulated 5" (127mm) of snow. In Dunstable, during the entire year, snow falls for 35.7 days and aggregates up to 25.35" (644mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December in Dunstable, Massachusetts, sunrise is at 6:57 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:22 pm EST.
Sunshine
In December, the average sunshine in Dunstable 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. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
How cold is it in Dunstable in December?
What is the average humidity in December in Dunstable?
What is the rainiest month in Dunstable?
How many days does it rain in December in Dunstable?
How many days does it snow in December in Dunstable?
What is the month with the shortest days in Dunstable?
How many hours of daylight does Dunstable have in December?
What time are sunrise and sunset in December in Dunstable?
How many hours of sunshine does Dunstable have in December?
What are the months with the lowest UV index in Dunstable?
What is the UV index intensity in December in Dunstable?
Average temperature in December
Dunstable, MA
- Average high temperature in December: 36.7°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 (30.9°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Dunstable, MA
- Average pressure in December: 30.04"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
Dunstable, MA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Dunstable, MA
- Average humidity in December: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Dunstable, MA
- Average rainfall in December: 2.83"
The wettest months (with the highest rainfall) are October and December (2.83").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Dunstable, MA
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Dunstable, MA
- Average snowfall in December: 5"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dunstable, MA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dunstable, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Dunstable, MA
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in December
Dunstable, 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
Dunstable, MA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Dunstable, MA
- Average visibility in December: 6mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Dunstable, Massachusetts, USA
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