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 brings a small change in high-temperatures, falling from a frosty 48.4°F (9.1°C) in November to a wintry 38.1°F (3.4°C). South Willington in December experiences a low-temperature average of 27.1°F (-2.7°C).Humidity
The average relative humidity in December in South Willington is 78%.Rainfall
In South Willington, during December, the rain falls for 7 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 105.6 rainfall days, and 9.84" (250mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In South Willington, in December, during 3.5 snowfall days, 0.67" (17mm) of snow is typically accumulated. Throughout the year, in South Willington, Connecticut, there are 23.1 snowfall days, and 4.69" (119mm) of snow is accumulated.Daylight
December has the shortest days of the year in South Willington, Connecticut, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 6:57 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:28 pm EST.
Sunshine
In South Willington, Connecticut, the average sunshine in December 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 of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in South Willington in December?
What is the average humidity in December in South Willington?
How many days does it rain in December in South Willington?
How much does it snow in South Willington in December?
What is the month with the shortest days in South Willington?
How many hours of daylight does South Willington have in December?
When are sunrise and sunset in December in South Willington?
How many hours of sunshine does South Willington have in December?
When is the lowest UV index in South Willington?
How high is the UV index in December in South Willington?
Average temperature in December
South Willington, CT
- Average high temperature in December: 38.1°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 (32.4°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
South Willington, 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
South Willington, CT
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
South Willington, CT
- Average humidity in December: 78%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
South Willington, CT
- Average rainfall in December: 0.79"
The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in December
South Willington, CT
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in December
South Willington, CT
- Average snowfall in December: 0.67"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
South Willington, CT
- Average snowfall days in December: 3.5 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 and September (0 days).
Average daylight in December /
Average sunshine in December
South Willington, 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 months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
South Willington, CT
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in December
South Willington, 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
South Willington, CT
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
South Willington, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
South Willington, Connecticut, USA
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