December weather forecastSumerduck, VA
December
Weather in December
The first month of the winter, December, is also a frosty month in Sumerduck, Virginia, with an average temperature ranging between max 46.4°F (8°C) and min 31.8°F (-0.1°C).Temperature
December signifies a gentle decline in Sumerduck's average high-temperature, easing from a cool 54.1°F (12.3°C) in November to a chilly 46.4°F (8°C). In Sumerduck, an average low-temperature of 31.8°F (-0.1°C) is recorded during December nights.Humidity
The months with the highest humidity are October and December, with an average relative humidity of 77%.Rainfall
In Sumerduck, in December, it is raining for 9.6 days, with typically 2.17" (55mm) of accumulated precipitation. In Sumerduck, during the entire year, the rain falls for 144.4 days and collects up to 25.08" (637mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Sumerduck. In Sumerduck, Virginia, in December, snow falls for 2.3 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, in Sumerduck, Virginia, there are 15.4 snowfall days, and 9.17" (233mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Sumerduck.On the first day of the month, sunrise is at 7:09 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:00 pm EST.
Sunshine
December has the least sunshine of the year in Sumerduck, with an average of 5.2h of sunshine.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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sumerduck, VA
- Average high temperature in December: 46.4°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (41.4°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Sumerduck, 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
Sumerduck, VA
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Sumerduck, VA
- Average humidity in December: 77%
The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
Sumerduck, VA
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in December
Sumerduck, VA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (16.1 days).
The months with the least rainy days are January and November (8.3 days).
Average snowfall in December
Sumerduck, VA
- Average snowfall in December: 1.69"
The month with the highest snowfall is January (2.36").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Sumerduck, VA
- Average snowfall days in December: 2.3 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Sumerduck, VA
- Average daylight in December: 9h and 30min
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 30min).
- 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
Sumerduck, VA
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in December
Sumerduck, 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
Sumerduck, VA
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Sumerduck, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
