December weather forecastWest Hartford, CT
December
Weather in December
December, concluding the year in West Hartford, conjures a striking winter scene with temperature lows touching 27.7°F (-2.4°C). The month sees less sunlight than previous months, with shorter daylight hours and a drop in the UV Index. Snowfall gains momentum, turning the city into a winter wonderland. The atmosphere remains noticeably humid, though wind speed remains relatively steady. Thus, December displays a typical winter climate with cold temperatures, increased snowfall, and frosty winds.Temperature
The commencement of December indicates a shift in the average high-temperature, receding from November's frosty 48.7°F (9.3°C) to an icy 38.3°F (3.5°C). Throughout December, an average low-temperature of 27.7°F (-2.4°C) is expected in West Hartford.Humidity
In West Hartford, the average relative humidity in December is 78%.Rainfall
The month with the most rainfall 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 West Hartford, in December, during 5.4 snowfall days, 2.44" (62mm) of snow is typically accumulated. Throughout the year, there are 30.2 snowfall days, and 15.67" (398mm) 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 the month, sunrise is at 6:59 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:30 pm EST.
Sunshine
In West Hartford, the average sunshine in December is 4.8h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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
West Hartford, 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).
