December weather forecastStony, VA
December
Weather in December
December, the first month of the winter in Stony, is still a chilly month, with an average temperature ranging between min 32°F (0°C) and max 45.3°F (7.4°C).Temperature
During the shift to December, a minor reduction in average high-temperature is observed, shifting from a cool 53.2°F (11.8°C) in November to a frosty 45.3°F (7.4°C). December nights cool down to an average low-temperature of 32°F (0°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Stony, in December, during 14.4 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, there are 197.7 rainfall days, and 36.69" (932mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Stony, in December, during 8.1 snowfall days, 4.17" (106mm) of snow is typically accumulated. In Stony, during the entire year, snow falls for 41.9 days and aggregates up to 19.8" (503mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:23 pm EST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. 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
Stony, VA
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Stony, VA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Stony, VA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Stony, VA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Stony, VA
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is February (3.86").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Stony, VA
- Average rainfall days in December: 14.4 days
The months with the highest number of rainy days are May and July (21.1 days).
The month with the least rainy days is November (11.6 days).
Average snowfall in December
Stony, VA
- Average snowfall in December: 4.17"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Stony, VA
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Stony, VA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 48min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Stony, VA
- Average sunshine days in December: 12 days
The months with the most sunshine days are October and November (15 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in December
Stony, VA
- Average UV index in December: 2
The months with the highest UV index are June 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
Stony, VA
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Stony, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
