December weather forecastNewington, CT
December
Weather in December
The first month of the winter, December, is still a cold month in Newington, Connecticut, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 38.8°F (3.8°C).Temperature
December's arrival corresponds with a decrease in average high-temperatures, from November's frosty 48.9°F (9.4°C) to an icy 38.8°F (3.8°C). Newington in December anticipates an average nighttime temperature of 28°F (-2.2°C).Humidity
In Newington, the average relative humidity in December is 78%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.1 days and typically aggregates up to 3.54" (90mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Newington, Connecticut, in December, during 5.5 snowfall days, 3.23" (82mm) of snow is typically accumulated. Throughout the year, in Newington, there are 31.7 snowfall days, and 17.2" (437mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Newington.On the first day of December in Newington, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:30 pm EST.
Sunshine
In December, the average sunshine is 4.8h.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 low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 1 during December leads to these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Newington, CT
- Average high temperature in December: 38.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Newington, 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
Newington, CT
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Newington, CT
- Average humidity in December: 78%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Newington, CT
- Average rainfall in December: 3.54"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Newington, CT
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in December
Newington, CT
- Average snowfall in December: 3.23"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Newington, CT
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Newington, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Newington, CT
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Newington, 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
Newington, CT
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Newington, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).





