December weather forecastRocky Gap, VA
December
Weather in December
December, the first month of the winter in Rocky Gap, is also a frosty month, with an average temperature varying between 43.5°F (6.4°C) and 30.2°F (-1°C).Temperature
The start of December comes with a small reduction in the average high-temperature, subtly receding from a fresh 51.3°F (10.7°C) in November to a frosty 43.5°F (6.4°C). Throughout December, Rocky Gap encounters an average temperature drop to a subzero cold 30.2°F (-1°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Rocky Gap, Virginia, in December, during 11.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 174.7 rainfall days, and 29.96" (761mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 9.5 days and typically aggregates up to 6.18" (157mm) of snow.Daylight
December has the shortest days of the year in Rocky Gap, with an average of 9h and 42min of daylight.On the first day of December in Rocky Gap, sunrise is at 7:20 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:17 pm EST.
Sunshine
In December, the average sunshine is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rocky Gap. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
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. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rocky Gap, VA
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Rocky Gap, 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
Rocky Gap, VA
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Rocky Gap, VA
- Average humidity in December: 80%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, June, July, August and November (77%).
Average rainfall in December
Rocky Gap, VA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Rocky Gap, VA
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (10 days).
Average snowfall in December
Rocky Gap, VA
- Average snowfall in December: 6.18"
The month with the highest snowfall is December (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rocky Gap, VA
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rocky Gap, VA
- Average daylight in December: 9h and 42min
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 42min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Rocky Gap, VA
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is November (16.5 days).
The months with the least sunshine days are February and May (9.8 days).
Average UV index in December
Rocky Gap, VA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Rocky Gap, VA
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Rocky Gap, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
