December weather forecastBloomfield, CT
December
Weather in December
The first month of the winter, December, is still a cold month in Bloomfield, Connecticut, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 38.3°F (3.5°C).Temperature
A shift in the average high-temperature occurs in December, reducing from a frosty 48.7°F (9.3°C) in November to an icy 38.3°F (3.5°C). Throughout the nights in December, an average low-temperature of 27.7°F (-2.4°C) is noted.Humidity
In December, the average relative humidity in Bloomfield, Connecticut, is 78%.Rainfall
The month with the most rainfall in Bloomfield is December, when the rain falls for 11.5 days and typically aggregates up to 3.19" (81mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 5.4 days. Throughout December, 2.44" (62mm) of snow is accumulated. In Bloomfield, during the entire year, snow falls for 30.2 days and aggregates up to 15.67" (398mm) 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 6:59 am and sunset at 4:20 pm. On the last day of December, in Bloomfield, sunrise is at 7:18 am and sunset at 4:30 pm EST.
Sunshine
In Bloomfield, the average sunshine in December 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 value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. 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
Bloomfield, CT
- Average high temperature in December: 38.3°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 (32.7°F).
- Average low temperature in December: 27.7°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 (20.7°F).
Average pressure in December
Bloomfield, CT
- Average pressure in December: 30.05"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
Bloomfield, CT
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Bloomfield, 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 (70%).
Average rainfall in December
Bloomfield, CT
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Bloomfield, CT
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Bloomfield, CT
- Average snowfall in December: 2.44"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Bloomfield, CT
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bloomfield, 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 months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Bloomfield, CT
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Bloomfield, CT
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Bloomfield, 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
Bloomfield, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are February, May, July and September (5mi).





