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
Unionville experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a fresh 54.5°F (12.5°C) in November to a frosty 46.4°F (8°C). Unionville anticipates an average minimum temperature of 32.7°F (0.4°C) in the month of December.Humidity
December is the most humid month in Unionville, with an average relative humidity of 78%.Rainfall
In Unionville, Virginia, during December, the rain falls for 10.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Unionville, during the entire year, the rain falls for 158.3 days and collects up to 28.5" (724mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Unionville. In Unionville, Virginia, in December, during 2.4 snowfall days, 1.77" (45mm) of snow is typically accumulated. Throughout the year, there are 16.2 snowfall days, and 10.75" (273mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Unionville.On the first day of the month, sunrise is at 7:10 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:01 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 value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What are December temperatures in Unionville?
What is the most humid month in Unionville?
What is the average humidity in December in Unionville?
How much does it rain in Unionville in December?
How many days does it snow in December in Unionville?
What is the month with the shortest days in Unionville?
What is the average length of the day in December in Unionville?
When is the sunrise / sunset in December in Unionville?
What is the month with the least sunshine in Unionville?
How many hours of sunshine does Unionville have in December?
When is the lowest UV index in Unionville?
What is the UV index reading in December in Unionville?
Average temperature in December
Unionville, VA
- Average high temperature in December: 46.4°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in December
Unionville, VA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Unionville, VA
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Unionville, VA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Unionville, VA
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is April (2.95").
The driest months (with the least rainfall) are January and September (1.85").
Average rainfall days in December
Unionville, VA
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Unionville, VA
- Average snowfall in December: 1.77"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Unionville, VA
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Unionville, 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 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
Unionville, VA
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Unionville, 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
Unionville, VA
- Average cloud cover in December: 42
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
Unionville, VA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, May and September (5mi).
Unionville, Virginia, USA
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