December weather forecastThornburg, VA
December
Weather in December
December, the first month of the winter in Thornburg, is still a chilly month, with an average temperature fluctuating between 33.4°F (0.8°C) and 47.3°F (8.5°C).Temperature
In Thornburg, entering December brings a subtle temperature decrement, reducing from November's refreshing 55.4°F (13°C) to a frosty 47.3°F (8.5°C). Thornburg reports a consistent average low-temperature of 33.4°F (0.8°C) throughout December nights.Humidity
December is the most humid month in Thornburg, with an average relative humidity of 78%.Rainfall
In Thornburg, during December, the rain falls for 10.5 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, in Thornburg, Virginia, there are 153.8 rainfall days, and 26.73" (679mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Thornburg, in December, during 2.3 snowfall days, 1.06" (27mm) of snow is typically accumulated. In Thornburg, during the entire year, snow falls for 13.5 days and aggregates up to 6.77" (172mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:08 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:00 pm EST.
Sunshine
With an average of 5.2h of sunshine, December has the least sunshine of the year.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. 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. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thornburg, VA
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Thornburg, VA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Thornburg, VA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Thornburg, 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
Thornburg, VA
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (1.65").
Average rainfall days in December
Thornburg, VA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Thornburg, VA
- Average snowfall in December: 1.06"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Thornburg, VA
- Average snowfall days in December: 2.3 days
The months with the highest number of snowfall days are January and February (4.3 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
Thornburg, 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 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Thornburg, VA
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in December
Thornburg, 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 and December (UV index 2).
Average cloud cover in December
Thornburg, VA
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Thornburg, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).
