December weather forecastRoxbury, CT
December
Weather in December
The first month of the winter, December, is also an icy month in Roxbury, Connecticut, with an average temperature ranging between max 38.5°F (3.6°C) and min 28°F (-2.2°C).Temperature
The onset of December comes with a shift in the average high-temperature, falling from a frosty 48.4°F (9.1°C) in November to an icy 38.5°F (3.6°C). December nights in Roxbury experience a consistent temperature drop to a subzero cold 28°F (-2.2°C).Humidity
In December, the average relative humidity in Roxbury is 79%.Rainfall
December is the month with the most rainfall. Rain falls for 12.1 days and accumulates 3.9" (99mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In December, in Roxbury, it is snowing for 6.4 days. Throughout December, 3.23" (82mm) of snow is accumulated. In Roxbury, during the entire year, snow falls for 34.8 days and aggregates up to 17.48" (444mm) of snow.Daylight
December has the shortest days of the year in Roxbury, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:24 pm. On the last day of December, in Roxbury, sunrise is at 7:19 am and sunset at 4:33 pm EST.
Sunshine
In Roxbury, Connecticut, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Boost your sun resistance with garments that are densely woven yet spacious. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roxbury, CT
- Average high temperature in December: 38.5°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 (33.1°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in December
Roxbury, 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
Roxbury, CT
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Roxbury, CT
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Roxbury, CT
- Average rainfall in December: 3.9"
The wettest month (with the highest rainfall) is December (3.9").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Roxbury, CT
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Roxbury, CT
- Average snowfall in December: 3.23"
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
Roxbury, CT
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roxbury, 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 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Roxbury, CT
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is November (17 days).
The months with the least sunshine days are May and June (10.3 days).
Average UV index in December
Roxbury, 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
Roxbury, 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 36).
Average visibility in December
Roxbury, CT
- Average visibility in December: 6mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
