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
A moderate decline in average high-temperatures is noted in December, moving from a cool 52.3°F (11.3°C) in November to a frosty 43.9°F (6.6°C). In the month of December, an average of 29.7°F (-1.3°C) marks the low-temperature.Humidity
In Swoope, the average relative humidity in December is 78%.Rainfall
In Swoope, in December, during 8.6 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, in Swoope, there are 144.6 rainfall days, and 23.46" (596mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 2.7 days. Throughout December, 2.09" (53mm) of snow is accumulated. In Swoope, during the entire year, snow falls for 17.7 days and aggregates up to 14.41" (366mm) of snow.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 7:15 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:07 pm EST.
Sunshine
With an average of 5.2h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December in Swoope?
What is the month with the least sunshine?
How many hours of sunshine does Swoope have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Swoope, VA
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Swoope, 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
Swoope, VA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Swoope, VA
- Average humidity in December: 78%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is January (74%).
Average rainfall in December
Swoope, VA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Swoope, VA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Swoope, VA
- Average snowfall in December: 2.09"
The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Swoope, VA
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Swoope, VA
- Average daylight in December: 9h and 4min
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 36min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Swoope, VA
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Swoope, VA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Swoope, VA
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in December
Swoope, VA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October and December (5mi).
Swoope, Virginia, USA
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