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
With the onset of December, Mount Holly experiences a modest temperature adjustment, with the average high-temperature gently receding from a fresh 55°F (12.8°C) in November to a chilly 47.1°F (8.4°C). Throughout December, the temperature falls to an average low of 36.9°F (2.7°C).Humidity
In Mount Holly, the average relative humidity in December is 76%.Rainfall
In Mount Holly, during December, the rain falls for 8.2 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Mount Holly, during the entire year, the rain falls for 146.1 days and collects up to 17.83" (453mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Mount Holly, in December, during 1.8 snowfall days, 0.71" (18mm) of snow is typically accumulated. Throughout the year, there are 9 snowfall days, and 2.76" (70mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:04 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:57 pm EST.
Sunshine
In Mount Holly, the average sunshine in December is 5.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Mount Holly?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December in Mount Holly?
Average temperature in December
Mount Holly, VA
- Average high temperature in December: 47.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in December: 36.9°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Mount Holly, VA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Mount Holly, VA
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in December
Mount Holly, VA
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is January (73%).
Average rainfall in December
Mount Holly, VA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is August (2.52").
The driest months (with the least rainfall) are January and November (0.94").
Average rainfall days in December
Mount Holly, VA
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in December
Mount Holly, VA
- Average snowfall in December: 0.71"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Mount Holly, VA
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Mount Holly, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in December
Mount Holly, VA
- Average sunshine days in December: 20 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is August (11.8 days).
Average UV index in December
Mount Holly, 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 and December (UV index 2).
Average cloud cover in December
Mount Holly, VA
- Average cloud cover in December: 43
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
Mount Holly, 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).
Mount Holly, Virginia, USA
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