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
The arrival of December correlates with a minor temperature reduction, down from November's fresh 52.5°F (11.4°C) to a chilly 43.7°F (6.5°C). Mountville registers a consistent average low-temperature of 30.9°F (-0.6°C) during December.Humidity
October and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Mountville, during December, the rain falls for 10.7 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Mountville, during the entire year, the rain falls for 162.2 days and collects up to 31.1" (790mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Mountville, in December, during 3.8 snowfall days, 2.68" (68mm) of snow is typically accumulated. In Mountville, during the entire year, snow falls for 21.9 days and aggregates up to 14.88" (378mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:58 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.1h of sunshine.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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Mountville have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Mountville have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Mountville, VA
- Average high temperature in December: 43.7°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 (38.7°F).
- Average low temperature in December: 30.9°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 (24.8°F).
Average pressure in December
Mountville, 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
Mountville, VA
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Mountville, VA
- Average humidity in December: 78%
The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Mountville, VA
- Average rainfall in December: 2.6"
The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Mountville, VA
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).
Average snowfall in December
Mountville, VA
- Average snowfall in December: 2.68"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mountville, VA
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (6.8 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
Mountville, VA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Mountville, VA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in December
Mountville, 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
Mountville, VA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Mountville, VA
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).
Mountville, Virginia, USA
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