December weather forecastRoanoke, VA
December
Weather in December
December engulfs Roanoke in the full swing of winter. The temperatures drastically dip to a night-time low of 31.8°F (-0.1°C), marking the return of the chilly climatic conditions. The city gets adorned in a white cloak as snowfall resumes, painting the landscapes into stunning scenes of winter beauty. Drastic reduction in daylight hours adds to the typical winter atmosphere, casting long shadows and creating picturesque winter evenings. With this, Roanoke concludes the year on a cold note, silently awaiting January's first rays.Temperature
The arrival of December in Roanoke corresponds with a minor reduction in the average high-temperature, down from November's fresh 53.8°F (12.1°C) to a frosty 45.9°F (7.7°C). Roanoke experiences an average nighttime temperature of 31.8°F (-0.1°C) in the month of December.Humidity
The months with the highest humidity are May, September and December, with an average relative humidity of 77%.Rainfall
In Roanoke, during December, the rain falls for 8.6 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Roanoke, during the entire year, the rain falls for 145.5 days and collects up to 25.04" (636mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, in Roanoke, it is snowing for 2.2 days. Throughout December, 2.72" (69mm) of snow is accumulated. Throughout the year, in Roanoke, Virginia, there are 12.9 snowfall days, and 11.42" (290mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:15 am and sunset at 5:02 pm. On the last day of December, sunrise is at 7:33 am and sunset at 5:12 pm EST.
Sunshine
In Roanoke, the average sunshine in December is 5.5h.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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roanoke, VA
- Average high temperature in December: 45.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Roanoke, 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 (29.98"Hg).
Average wind speed in December
Roanoke, VA
- Average wind speed in December: 5.9mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Roanoke, VA
- Average humidity in December: 77%
The months with the highest relative humidity are May, September and December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
Roanoke, VA
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Roanoke, VA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (7.6 days).
Average snowfall in December
Roanoke, VA
- Average snowfall in December: 2.72"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Roanoke, VA
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.8 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
Roanoke, 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 30min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Roanoke, VA
- Average sunshine days in December: 20 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in December
Roanoke, 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
Roanoke, VA
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in December
Roanoke, VA
- Average visibility in December: 5mi
The months with the highest visibility are June, July and November (6mi).
The months with the lowest visibility are January, February, March, April, May, August, September, October and December (5mi).
