December weather forecastTrevilians, VA
December
Weather in December
The first month of the winter, December, is still a chilly month in Trevilians, Virginia, with an average temperature ranging between min 32.9°F (0.5°C) and max 46.8°F (8.2°C).Temperature
The beginning of December subtly marks a decrease in the average high-temperature, transitioning from a fresh 54.7°F (12.6°C) in November to a chilly 46.8°F (8.2°C). In December, Trevilians's temperature tends to fall to an average low of 32.9°F (0.5°C) during the night.Humidity
With an average relative humidity of 78%, December is the most humid month.Rainfall
In Trevilians, in December, it is raining for 10.1 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 154.2 rainfall days, and 28.54" (725mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 1.9 days. Throughout December, 1.5" (38mm) of snow is accumulated. In Trevilians, during the entire year, snow falls for 15.3 days and aggregates up to 10.39" (264mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:02 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.4h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trevilians, VA
- Average high temperature in December: 46.8°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in December
Trevilians, VA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Trevilians, VA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Trevilians, VA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Trevilians, VA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Trevilians, VA
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in December
Trevilians, VA
- Average snowfall in December: 1.5"
The month with the highest snowfall is January (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Trevilians, VA
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Trevilians, VA
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Trevilians, VA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in December
Trevilians, VA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Trevilians, VA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Trevilians, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, June, July, August, October and November (6mi).
The months with the lowest visibility are February, May, September and December (5mi).
