Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a fresh 53.4°F (11.9°C) in November to a frosty 45.5°F (7.5°C). Throughout the month of December, the nighttime temperature dips to an average of 31.6°F (-0.2°C).Humidity
The months with the highest humidity are May, September, October and December, with an average relative humidity of 77%.Rainfall
In Arrington, in December, it is raining for 10.3 days, with typically 2.95" (75mm) of accumulated precipitation. In Arrington, Virginia, during the entire year, the rain falls for 158.7 days and collects up to 31.3" (795mm) of precipitation.Snowfall
Months with snowfall in Arrington are January through April, October through December. In Arrington, in December, during 2.5 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Arrington, during the entire year, snow falls for 17.2 days and aggregates up to 13.98" (355mm) of snow.Daylight
December has the shortest days of the year in Arrington, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:57 pm. On the last day of December, in Arrington, sunrise is at 7:30 am and sunset at 5:07 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.3h 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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Arrington?
What is the most humid month in Arrington?
What is the average humidity in December in Arrington?
How many days does it rain in December in Arrington?
How much does it snow in Arrington in December?
What is the month with the shortest days in Arrington?
How many hours of daylight does Arrington have in December?
What time are sunrise and sunset in December in Arrington?
What is the month with the least sunshine in Arrington?
How many hours of sunshine does Arrington have in December?
When is the lowest UV index in Arrington?
What is the UV index intensity in December in Arrington?
Average temperature in December
Arrington, VA
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (40.8°F).
- Average low temperature in December: 31.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Arrington, VA
- Average pressure in December: 30.12"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
Arrington, VA
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Arrington, VA
- Average humidity in December: 77%
The months with the highest relative humidity are May, September, October and December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
Arrington, VA
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Arrington, VA
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Arrington, VA
- Average snowfall in December: 2.17"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Arrington, VA
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (5.5 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
Arrington, VA
- Average daylight in December: 9h and 4min
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 2min
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 18min).
Average sunshine days in December
Arrington, VA
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in December
Arrington, 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
Arrington, VA
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Arrington, VA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Arrington, Virginia, USA
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