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
Start of December brings a slight shift in the average high-temperature, dipping a bit from November's fresh 52.3°F (11.3°C) to a frosty 44.4°F (6.9°C). The average low-temperature during December nights is a freezing cold 30.9°F (-0.6°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In December, the rain falls for 14.1 days. Throughout December, 2.76" (70mm) of precipitation is accumulated. In Widener Valley, during the entire year, the rain falls for 186.7 days and collects up to 29.02" (737mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Widener Valley, in December, snow falls for 8.2 days, with typically accumulated 4.06" (103mm) of snow. Throughout the year, there are 42.6 snowfall days, and 19.8" (503mm) 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 7:21 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:21 pm EST.
Sunshine
In December, the average sunshine is 5.2h.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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. 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
Is it cold during December?
What is the average humidity in December in Widener Valley?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Widener Valley have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Widener Valley, VA
- Average high temperature in December: 44.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Widener Valley, VA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Widener Valley, VA
- Average wind speed in December: 6.6mph
The windiest months (with the highest average wind speed) are January and April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Widener Valley, VA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Widener Valley, VA
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is February (3.43").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in December
Widener Valley, VA
- Average rainfall days in December: 14.1 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in December
Widener Valley, VA
- Average snowfall in December: 4.06"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Widener Valley, VA
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Widener Valley, 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Widener Valley, VA
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in December
Widener Valley, VA
- Average UV index in December: 2
The month with the highest UV index is 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
Widener Valley, VA
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 35).
Average visibility in December
Widener Valley, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Widener Valley, Virginia, USA
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