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 marks a gentle change in average high-temperature, declining from November's fresh 55.2°F (12.9°C) to a frosty 46.9°F (8.3°C). Throughout December, Triangle encounters an average temperature drop to a wintry 33.6°F (0.9°C).Humidity
The months with the highest humidity in Triangle are October and December, with an average relative humidity of 78%.Rainfall
In Triangle, in December, it is raining for 10.4 days, with typically 2.6" (66mm) of accumulated precipitation. In Triangle, during the entire year, the rain falls for 155.6 days and collects up to 31.61" (803mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Triangle, in December, during 1.8 snowfall days, 1.34" (34mm) of snow is typically accumulated. Throughout the year, there are 13.5 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 30min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:48 pm. On the last day of December, in Triangle, sunrise is at 7:26 am and sunset at 4:58 pm EST.
Sunshine
February and December, with an average of 5.1h of sunshine, are months with the least sunshine in Triangle.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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What are the temperatures in Triangle in December?
What is the most humid month in Triangle?
What is the average humidity in December in Triangle?
How much does it rain in Triangle in December?
How many days does it snow in December in Triangle?
What is the month with the shortest days in Triangle?
How many hours of daylight does Triangle have in December?
When is the sunrise / sunset in December in Triangle?
What are the months with the least sunshine in Triangle?
How long on average sun shines in December in Triangle?
What is the month with the lowest UV index in Triangle?
What is the UV index reading in December in Triangle?
Average temperature in December
Triangle, VA
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 33.6°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Triangle, 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
Triangle, VA
- Average wind speed in December: 6.1mph
The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Triangle, VA
- Average humidity in December: 78%
The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).
Average rainfall in December
Triangle, VA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in December
Triangle, VA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Triangle, VA
- Average snowfall in December: 1.34"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Triangle, VA
- Average snowfall days in December: 1.8 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
Triangle, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Triangle, VA
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Triangle, 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
Triangle, VA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Triangle, 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).
Triangle, Virginia, USA
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