December weather forecastFarmington, CT
December
Weather in December
December brings Farmington a full winter experience, with the lowest temperatures compared to previous months, and fewer daylight hours. The city becomes a winter wonderland, wrapped in snow flurries and festive cheer. The coldness of December spans from 28°F (-2.2°C) to 38.8°F (3.8°C), with an increased snowfall measure of 3.23" (82mm). As the year wraps up, residents embrace the holiday spirit, reflected in the city's lively events, decorative lights, and cheerful ambiance.Temperature
The arrival of December in Farmington indicates a decrease in the average high-temperature, moving from a frosty 48.9°F (9.4°C) in November to an icy 38.8°F (3.8°C). Throughout December nights, Farmington registers an average low-temperature of 28°F (-2.2°C).Humidity
In December, the average relative humidity is 78%.Rainfall
December is the month with the most rainfall. Rain falls for 12.1 days and accumulates 3.54" (90mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Farmington, in December, during 5.5 snowfall days, 3.23" (82mm) of snow is typically accumulated. Throughout the year, there are 31.7 snowfall days, and 17.2" (437mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:30 pm EST.
Sunshine
In Farmington, the average sunshine in December is 4.8h.UV index
December is the month with the lowest UV index in Farmington, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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
Farmington, 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).
