December weather forecastAiken, SC
December
Weather in December
December ushers in winter in Aiken, South Carolina. The city is adorned with festive decorations under the cover of shorter days and colder temperatures. The month witnesses the least amount of daylight and sunshine hours. Temperatures can drop to as low as 42.4°F (5.8°C) and rise to a maximum of 56.7°F (13.7°C). December observes the most rainfall in a year, at about 3.15" (80mm), and even a slight chance of snowfall, around 0.04" (1mm), adding to the holiday cheer.Temperature
With the onset of December, Aiken experiences a modest temperature adjustment, with the average high-temperature gently receding from a refreshing 62.8°F (17.1°C) in November to a moderate 56.7°F (13.7°C). December witnesses an average nighttime temperature of 42.4°F (5.8°C).Humidity
With an average relative humidity of 75%, December is the most humid month.Rainfall
The month with the most rainfall is December, when the rain falls for 10.9 days and typically aggregates up to 3.15" (80mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows in Aiken. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Aiken, during the entire year, snow falls for 1.1 days and aggregates up to 0.71" (18mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:18 pm. On the last day of December, in Aiken, sunrise is at 7:31 am and sunset at 5:29 pm EST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Aiken, SC
- Average high temperature in December: 56.7°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in December: 42.4°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in December
Aiken, SC
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Aiken, SC
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are February and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Aiken, SC
- Average humidity in December: 75%
The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are July and November (70%).
Average rainfall in December
Aiken, SC
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Aiken, SC
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (17.4 days).
The months with the least rainy days are October and November (7.7 days).
Average snowfall in December
Aiken, SC
- Average snowfall in December: 0.04"
The months with the highest snowfall are January and February (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Aiken, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Aiken, SC
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Aiken, SC
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Aiken, SC
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Aiken, SC
- Average cloud cover in December: 41
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in December
Aiken, SC
- 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).
