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's arrival subtly correlates with a reduction in the average high-temperature, down from a moderate 55.8°F (13.2°C) in November to a frosty 48.2°F (9°C). The temperature lowers to an average of 33.8°F (1°C) during December nights.Humidity
December is the most humid month, with an average relative humidity of 76%.Rainfall
In Mount Airy, in December, during 10.4 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Mount Airy, during the entire year, the rain falls for 152.6 days and collects up to 28.31" (719mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 1.3 days. Throughout December, 2.32" (59mm) of snow is accumulated. In Mount Airy, during the entire year, snow falls for 10.1 days and aggregates up to 8.98" (228mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 5:07 pm. On the last day of December, sunrise is at 7:34 am and sunset at 5:17 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How many days 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?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Mount Airy, NC
- Average high temperature in December: 48.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Mount Airy, NC
- 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 (29.98"Hg).
Average wind speed in December
Mount Airy, NC
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Mount Airy, NC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Mount Airy, NC
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Mount Airy, NC
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in December
Mount Airy, NC
- Average snowfall in December: 2.32"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Mount Airy, NC
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (3.8 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
Mount Airy, NC
- 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 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 24min).
Average sunshine days in December
Mount Airy, NC
- Average sunshine days in December: 18.7 days
The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in December
Mount Airy, NC
- 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 and December (UV index 2).
Average cloud cover in December
Mount Airy, NC
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in December
Mount Airy, NC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Mount Airy, North Carolina, USA
Weather forecast for your location
2. Allow the app to use your location