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 onset of December results in a decrease in the average high-temperature, receding from a chilly 48.9°F (9.4°C) in November to a wintry 39°F (3.9°C). Thompson records an average nighttime low of 27.7°F (-2.4°C) in December.Humidity
In Thompson, Connecticut, the average relative humidity in December is 77%.Rainfall
In Thompson, in December, during 10.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, in Thompson, there are 141.4 rainfall days, and 23.86" (606mm) of precipitation is accumulated.Snowfall
Months with snowfall in Thompson are January through May, October through December. In Thompson, Connecticut, in December, during 4.7 snowfall days, 1.65" (42mm) of snow is typically accumulated. Throughout the year, in Thompson, there are 27.6 snowfall days, and 11.34" (288mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Thompson.On the first day of the month, sunrise is at 6:56 am and sunset at 4:17 pm. On the last day of December, in Thompson, sunrise is at 7:15 am and sunset at 4:26 pm EST.
Sunshine
The average sunshine in December in Thompson is 4.7h.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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
Is December cold in Thompson?
What is the average humidity in December in Thompson?
How much does it rain in Thompson in December?
How many days does it snow in December in Thompson?
What is the month with the shortest days in Thompson?
What is the average length of the day in December in Thompson?
What time are sunrise and sunset in December in Thompson?
How many hours of sunshine does Thompson have in December?
What are the months with the lowest UV index in Thompson?
What is the UV index reading in December in Thompson?
Average temperature in December
Thompson, CT
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 27.7°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°F).
Average pressure in December
Thompson, CT
- 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 (29.93"Hg).
Average wind speed in December
Thompson, CT
- Average wind speed in December: 8.6mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Thompson, CT
- Average humidity in December: 77%
The months with the highest relative humidity are February, September and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Thompson, CT
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in December
Thompson, CT
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Thompson, CT
- Average snowfall in December: 1.65"
The month with the highest snowfall is March (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Thompson, CT
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thompson, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Thompson, CT
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (13 days).
Average UV index in December
Thompson, 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
Thompson, CT
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Thompson, 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).
Thompson, Connecticut, USA
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