December weather forecastClinton, SC
December
Weather in December
The first month of the winter, December, is still a cool month in Clinton, South Carolina, with an average temperature fluctuating between 54.5°F (12.5°C) and 39.7°F (4.3°C).Temperature
As Clinton enters December, the average high-temperature subtly lowers from the a comfortable 61.3°F (16.3°C) of November to a cool 54.5°F (12.5°C). Throughout December, Clinton experiences a low-temperature average of 39.7°F (4.3°C).Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
The month with the most rainfall in Clinton is December, when the rain falls for 11.3 days and typically aggregates up to 3.54" (90mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.59" (15mm) of snow. Throughout the year, there are 2.4 snowfall days, and 2.36" (60mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:27 pm EST.
Sunshine
With an average of 5.2h of sunshine, December has the least sunshine of the year.UV index
The average daily maximum UV index in December in Clinton is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clinton, SC
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in December
Clinton, SC
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Clinton, SC
- Average wind speed in December: 6.7mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Clinton, SC
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Clinton, SC
- Average rainfall in December: 3.54"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Clinton, SC
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is August (16.5 days).
The months with the least rainy days are October and November (9 days).
Average snowfall in December
Clinton, SC
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Clinton, SC
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (0.9 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
Clinton, SC
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 12min
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 12min).
Average sunshine days in December
Clinton, SC
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (12 days).
Average UV index in December
Clinton, SC
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Clinton, SC
- Average cloud cover in December: 44
The months with the most cloud cover are February and December (Cloud cover 44).
The months with the least cloud cover are June, July and October (Cloud cover 31).
Average visibility in December
Clinton, 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).





