December weather forecastThompsonville, CT
December
Weather in December
The first month of the winter, December, is still a cold month in Thompsonville, Connecticut, with an average temperature varying between 38.3°F (3.5°C) and 27°F (-2.8°C).Temperature
Observing a mild shift, the average high-temperature during December reduces from November's frosty 48.6°F (9.2°C) to a cold 38.3°F (3.5°C). The average temperature in Thompsonville drops to a subzero cold 27°F (-2.8°C) during the night in the month of December.Humidity
The average relative humidity in December in Thompsonville is 79%.Rainfall
The month with the most rainfall in Thompsonville, Connecticut, is December, when the rain falls for 10.6 days and typically aggregates up to 3.03" (77mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Thompsonville. In Thompsonville, in December, snow falls for 5.4 days, with typically accumulated 2.91" (74mm) of snow. Throughout the year, in Thompsonville, there are 33 snowfall days, and 18.03" (458mm) 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 the month, sunrise is at 6:59 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:29 pm EST.
Sunshine
In December, the average sunshine in Thompsonville is 4.7h.UV index
The months with the lowest UV index in Thompsonville, Connecticut, are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thompsonville, CT
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Thompsonville, 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
Thompsonville, CT
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Thompsonville, CT
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Thompsonville, CT
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is December (3.03").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Thompsonville, CT
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Thompsonville, CT
- Average snowfall in December: 2.91"
The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Thompsonville, CT
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thompsonville, CT
- Average daylight in December: 9h and 12min
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 42min
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 30min).
Average sunshine days in December
Thompsonville, CT
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (12 days).
Average UV index in December
Thompsonville, 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
Thompsonville, CT
- Average cloud cover in December: 48
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
Thompsonville, CT
- Average visibility in December: 6mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
