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
In December, the average high-temperature marginally drops from a mild 57.4°F (14.1°C) in November to a cool 50°F (10°C). An average temperature of 35.2°F (1.8°C) marks the nights in December.Humidity
With an average relative humidity of 78%, December is the most humid month.Rainfall
In Wylliesburg, in December, it is raining for 11.4 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 160.4 rainfall days, and 30.91" (785mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Wylliesburg, in December, during 1.4 snowfall days, 1.81" (46mm) of snow is typically accumulated. Throughout the year, there are 9.4 snowfall days, and 8.23" (209mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 7:09 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:08 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.4h of sunshine.UV index
January, February 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 low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December in Wylliesburg?
How many days 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?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Wylliesburg have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Wylliesburg, VA
- Average high temperature in December: 50°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in December
Wylliesburg, VA
- Average pressure in December: 30.13"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
Wylliesburg, VA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Wylliesburg, 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
Wylliesburg, VA
- Average rainfall in December: 2.83"
The wettest months (with the highest rainfall) are May and August (2.91").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in December
Wylliesburg, VA
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in December
Wylliesburg, VA
- Average snowfall in December: 1.81"
The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Wylliesburg, VA
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (3.3 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
Wylliesburg, VA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Wylliesburg, 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 days).
Average UV index in December
Wylliesburg, 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 and December (UV index 2).
Average cloud cover in December
Wylliesburg, VA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in December
Wylliesburg, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Wylliesburg, Virginia, USA
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