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 arrival of December signals a shift in temperature, down from a frosty 46.4°F (8°C) in November to an icy 36.1°F (2.3°C). In Colebrook, the average temperature during the nights of December drops to a freezing cold 25.3°F (-3.7°C).Humidity
The average relative humidity in December is 81%.Rainfall
The wettest months in Colebrook are October and December, with an average 3.31" (84mm) of rainfall.Snowfall
Months with snowfall in Colebrook, Connecticut, are January through May, October through December. In Colebrook, during December, snow falls for 7.7 days and regularly aggregates up to 4.88" (124mm) of snow. In Colebrook, during the entire year, snow falls for 45.3 days and aggregates up to 25.63" (651mm) of snow.Daylight
December has the shortest days of the year in Colebrook, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:31 pm EST.
Sunshine
In Colebrook, the average sunshine in December is 4.5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Colebrook. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To guard against the harmful effects of the Sun, minimize exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold is it in Colebrook in December?
What is the average humidity in December in Colebrook?
What is the rainiest month in Colebrook?
How many days does it rain in December in Colebrook?
How much does it snow in Colebrook in December?
What is the month with the shortest days in Colebrook?
What is the average length of the day in December in Colebrook?
When are sunrise and sunset in December in Colebrook?
How long on average sun shines in December in Colebrook?
When is the lowest UV index in Colebrook?
What is the UV index intensity in December in Colebrook?
Average temperature in December
Colebrook, CT
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Colebrook, CT
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Colebrook, CT
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Colebrook, CT
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Colebrook, CT
- Average rainfall in December: 3.31"
The wettest months (with the highest rainfall) are October and December (3.31").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in December
Colebrook, CT
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Colebrook, CT
- Average snowfall in December: 4.88"
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
Colebrook, CT
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Colebrook, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Colebrook, CT
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in December
Colebrook, CT
- Average UV index in December: 2
The month with the highest UV index is June (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
Colebrook, CT
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Colebrook, CT
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Colebrook, Connecticut, USA
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