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
With December's arrival, Dayville's weather changes as the average high-temperature falls from a chilly 49.1°F (9.5°C) in November to a wintry 39.4°F (4.1°C). In Dayville, an average temperature of 28.8°F (-1.8°C) is noted during December nights.Humidity
The average relative humidity in December is 78%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.43" (87mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Dayville, during December, snow falls for 5 days and regularly aggregates up to 2.48" (63mm) of snow. Throughout the year, there are 30.6 snowfall days, and 14.02" (356mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December in Dayville, sunrise is at 6:56 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:26 pm EST.
Sunshine
The average sunshine in December is 4.8h.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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Dayville have in December?
When is the sunrise / sunset in December in Dayville?
How many hours of sunshine does Dayville have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Dayville, CT
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.8°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 (21.6°F).
Average pressure in December
Dayville, CT
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Dayville, CT
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Dayville, CT
- Average humidity in December: 78%
The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Dayville, CT
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Dayville, CT
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Dayville, CT
- Average snowfall in December: 2.48"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Dayville, CT
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is January (7.8 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
Dayville, CT
- 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 months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Dayville, CT
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in December
Dayville, CT
- 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
Dayville, CT
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Dayville, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Dayville, Connecticut, USA
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