December weather forecastSherman, CT
December
Weather in December
The first month of the winter, December, is also a wintry month in Sherman, Connecticut, with temperature in the range of an average low of 26.8°F (-2.9°C) and an average high of 37.9°F (3.3°C).Temperature
The move into December indicates a reduction in the average high-temperature, down from November's chilly 47.8°F (8.8°C) to an icy 37.9°F (3.3°C). Nightly temperatures drop to an average low of 26.8°F (-2.9°C) in December.Humidity
The average relative humidity in December is 80%.Rainfall
In Sherman, in December, it is raining for 9.5 days, with typically 1.54" (39mm) of accumulated precipitation. In Sherman, during the entire year, the rain falls for 140.7 days and collects up to 17.56" (446mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 5.8 days and typically aggregates up to 1.46" (37mm) of snow.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 7:01 am and sunset at 4:24 pm. On the last day of December, in Sherman, sunrise is at 7:20 am and sunset at 4:34 pm EST.
Sunshine
In December, the average sunshine in Sherman, Connecticut, is 4.5h.UV index
December is the month with the lowest UV index in Sherman, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sherman, CT
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Sherman, 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
Sherman, CT
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Sherman, CT
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Sherman, CT
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in December
Sherman, CT
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Sherman, CT
- Average snowfall in December: 1.46"
The month with the highest snowfall is December (1.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sherman, CT
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sherman, 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 30min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Sherman, CT
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in December
Sherman, 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
Sherman, CT
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Sherman, CT
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
