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 average high-temperature in Williamsburg shows a slight dip in December, from November's moderate 57.6°F (14.2°C) to a fresh 50.5°F (10.3°C). The average low-temperature, in December, is a cold 37.6°F (3.1°C).Humidity
The most humid month in Williamsburg is December, with an average relative humidity of 78%.Rainfall
October and December are months with the least rain when the rain falls for 10.9 days and typically aggregates up to 1.38" (35mm) of rain.Snowfall
Months with snowfall in Williamsburg are January through March, November and December. In December, in Williamsburg, it is snowing for 0.9 days. Throughout December, 0.28" (7mm) of snow is accumulated. In Williamsburg, during the entire year, snow falls for 8.3 days and aggregates up to 2.52" (64mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Williamsburg.On the first day of December, sunrise is at 7:02 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:59 pm EST.
Sunshine
In December, the average sunshine in Williamsburg, Virginia, is 5.5h.UV index
The months with the lowest UV index are January 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 radiation for the ordinary person.Note: In December, the UV index of 2 transforms into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the usual temperature for Williamsburg in December?
What is the most humid month in Williamsburg?
What is the average humidity in December in Williamsburg?
What is the driest month in Williamsburg?
How much does it rain in Williamsburg in December?
How much does it snow in Williamsburg in December?
What is the month with the shortest days in Williamsburg?
What is the average length of the day in December in Williamsburg?
What time are sunrise and sunset in December in Williamsburg?
How many hours of sunshine does Williamsburg have in December?
What is the month with the lowest UV index in Williamsburg?
What is the UV index intensity in December in Williamsburg?
Average temperature in December
Williamsburg, VA
- Average high temperature in December: 50.5°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 (45.1°F).
- Average low temperature in December: 37.6°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Williamsburg, 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 (29.95"Hg).
Average wind speed in December
Williamsburg, VA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Williamsburg, 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 (73%).
Average rainfall in December
Williamsburg, VA
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is August (2.36").
The driest months (with the least rainfall) are October and December (1.38").
Average rainfall days in December
Williamsburg, VA
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is August (16.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Williamsburg, VA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Williamsburg, VA
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Williamsburg, VA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in December
Williamsburg, VA
- Average sunshine days in December: 18.2 days
The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is August (12.2 days).
Average UV index in December
Williamsburg, VA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Williamsburg, 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 28).
Average visibility in December
Williamsburg, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Williamsburg, Virginia, USA
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