December weather forecastWallingford, CT
December
Weather in December
December, the first month of the winter in Wallingford, is also an icy month, with an average temperature fluctuating between 39.7°F (4.3°C) and 29.1°F (-1.6°C).Temperature
The average high-temperature decreases in December, shifting from a chilly 49.1°F (9.5°C) in November to an icy 39.7°F (4.3°C). Throughout the month of December, Wallingford observes an average nighttime temperature of 29.1°F (-1.6°C).Humidity
In December, the average relative humidity is 77%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.82" (97mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Wallingford, in December, during 5.4 snowfall days, 2.28" (58mm) of snow is typically accumulated. In Wallingford, during the entire year, snow falls for 30 days and aggregates up to 15.28" (388mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:58 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:31 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wallingford, CT
- Average high temperature in December: 39.7°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 (33.6°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in December
Wallingford, 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
Wallingford, CT
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Wallingford, CT
- Average humidity in December: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Wallingford, CT
- Average rainfall in December: 3.82"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Wallingford, CT
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Wallingford, CT
- Average snowfall in December: 2.28"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Wallingford, CT
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wallingford, CT
- Average daylight in December: 9h and 12min
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 42min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Wallingford, CT
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Wallingford, 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
Wallingford, CT
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Wallingford, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, August, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July and September (5mi).
