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 shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a cool 54°F (12.2°C) to a chilly 45.5°F (7.5°C). An average nighttime temperature of 32°F (0°C) is witnessed throughout December.Humidity
The most humid month in Jeffersonton is December, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 160.5 rainfall days, and 29.92" (760mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Jeffersonton, in December, during 3.3 snowfall days, 2.13" (54mm) of snow is typically accumulated. Throughout the year, in Jeffersonton, there are 20.3 snowfall days, and 13.07" (332mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:11 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:00 pm EST.
Sunshine
December has the least sunshine of the year in Jeffersonton, with an average of 5.3h of sunshine.UV index
The months with the lowest UV index in Jeffersonton are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What are December temperatures in Jeffersonton?
What is the most humid month in Jeffersonton?
What is the average humidity in December in Jeffersonton?
How many days does it rain in December in Jeffersonton?
How many days does it snow in December in Jeffersonton?
What is the month with the shortest days in Jeffersonton?
How many hours of daylight does Jeffersonton have in December?
What time are sunrise and sunset in December in Jeffersonton?
What is the month with the least sunshine in Jeffersonton?
How many hours of sunshine does Jeffersonton have in December?
When is the lowest UV index in Jeffersonton?
What is the UV index intensity in December in Jeffersonton?
Average temperature in December
Jeffersonton, VA
- Average high temperature in December: 45.5°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 (40.3°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Jeffersonton, 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
Jeffersonton, VA
- Average wind speed in December: 5.8mph
The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Jeffersonton, 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 (72%).
Average rainfall in December
Jeffersonton, VA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Jeffersonton, VA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Jeffersonton, VA
- Average snowfall in December: 2.13"
The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Jeffersonton, VA
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jeffersonton, VA
- Average daylight in December: 9h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Jeffersonton, VA
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in December
Jeffersonton, 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
Jeffersonton, 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 30).
Average visibility in December
Jeffersonton, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, June, July, August and November (6mi).
The months with the lowest visibility are February, May, September, October and December (5mi).
Jeffersonton, Virginia, USA
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