December weather forecastRosney, VA
December
Weather in December
The first month of the winter, December, is also a frosty month in Rosney, Virginia, with an average temperature ranging between max 48.7°F (9.3°C) and min 34.5°F (1.4°C).Temperature
In the transition to December, Rosney observes a minor drop in the average high-temperature, shifting from a mild 56.3°F (13.5°C) in November to a chilly 48.7°F (9.3°C). An average low-temperature of 34.5°F (1.4°C) is recorded during the nights in December.Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 10.3 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 159.5 rainfall days, and 31.1" (790mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Rosney, during December, snow falls for 1.5 days and regularly aggregates up to 1.89" (48mm) of snow. Throughout the year, there are 11.7 snowfall days, and 9.41" (239mm) of snow is accumulated.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 7:10 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:05 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
January 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 hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To avoid the Sun's strongest rays, limit exposure around the mid-day period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rosney, VA
- Average high temperature in December: 48.7°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Rosney, VA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Rosney, VA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Rosney, 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 (69%).
Average rainfall in December
Rosney, VA
- Average rainfall in December: 2.68"
The wettest months (with the highest rainfall) are February and May (2.95").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Rosney, VA
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Rosney, VA
- Average snowfall in December: 1.89"
The month with the highest snowfall is March (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rosney, VA
- Average snowfall days in December: 1.5 days
The months with the highest number of snowfall days are January and February (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rosney, VA
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Rosney, VA
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Rosney, 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 and December (UV index 2).
Average cloud cover in December
Rosney, 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 31).
Average visibility in December
Rosney, VA
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, June, July, August, October and November (6mi).
The months with the lowest visibility are January, May, September and December (5mi).
