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
December brings a slight decrease in temperature, down from a fresh 54.5°F (12.5°C) in November to a frosty 46.4°F (8°C). In Radiant, an average nighttime temperature of 32.7°F (0.4°C) is expected during December.Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In Radiant, during December, the rain falls for 10.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 158.3 rainfall days, and 28.5" (724mm) of precipitation is accumulated.Snowfall
Months with snowfall in Radiant are January through April, November and December. In Radiant, in December, snow falls for 2.4 days, with typically accumulated 1.77" (45mm) of snow. Throughout the year, there are 16.2 snowfall days, and 10.75" (273mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:11 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:02 pm EST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year in Radiant.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 low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Radiant in December?
What is the most humid month in Radiant?
What is the average humidity in December in Radiant?
How much does it rain in Radiant in December?
How much does it snow in Radiant in December?
What is the month with the shortest days in Radiant?
How many hours of daylight does Radiant have in December?
What time are sunrise and sunset in December in Radiant?
What is the month with the least sunshine in Radiant?
How many hours of sunshine does Radiant have in December?
What are the months with the lowest UV index in Radiant?
What is the UV index reading in December in Radiant?
Average temperature in December
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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
Radiant, 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).
Radiant, Virginia, USA
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