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
Onset of December witnesses a reduction in the average high-temperature, falling from a frosty 49.6°F (9.8°C) in November to a wintry 40.3°F (4.6°C). Colchester witnesses an average low-temperature of 29.7°F (-1.3°C) throughout the month of December.Humidity
The average relative humidity in December is 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 6.8 days and typically aggregates up to 1.02" (26mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Colchester, in December, snow falls for 4.1 days, with typically accumulated 0.75" (19mm) of snow. Throughout the year, there are 22.3 snowfall days, and 3.82" (97mm) 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, sunrise is at 6:57 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:29 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.6h of sunshine.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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 rainiest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Colchester, CT
- Average high temperature in December: 40.3°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 (34.3°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Colchester, CT
- Average pressure in December: 30.05"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
Colchester, CT
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Colchester, CT
- Average humidity in December: 76%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Colchester, CT
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is December (1.02").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Colchester, CT
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in December
Colchester, CT
- Average snowfall in December: 0.75"
The month with the highest snowfall is March (1.26").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Colchester, CT
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is February (6.4 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
Colchester, CT
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in December
Colchester, CT
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (17.1 days).
Average UV index in December
Colchester, CT
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Colchester, CT
- Average cloud cover in December: 49
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Colchester, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July and August (5mi).
Colchester, Connecticut, USA
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