December weather forecastSaint George, SC
December
Weather in December
The first month of the winter, December, is still a mild month in Saint George, South Carolina, with an average temperature varying between 43.2°F (6.2°C) and 59°F (15°C).Temperature
The transition into December subtly indicates a reduction in the average high-temperature, down to a moderate 59°F (15°C) from November's enjoyable 65.1°F (18.4°C). During December, the average low-temperature in Saint George, South Carolina, is a frosty 43.2°F (6.2°C).Humidity
May, August, September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Saint George, in December, during 9.7 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 151.2 rainfall days, and 23.46" (596mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year in Saint George, South Carolina.On the first day of December in Saint George, South Carolina, sunrise is at 7:08 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:25 pm EST.
Sunshine
December has the least sunshine of the year in Saint George, with an average of 5.5h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint George, SC
- Average high temperature in December: 59°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55.2°F).
- Average low temperature in December: 43.2°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in December
Saint George, SC
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Saint George, SC
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Saint George, SC
- Average humidity in December: 77%
The months with the highest relative humidity are May, August, September and December (77%).
The month with the lowest relative humidity is January (72%).
Average rainfall in December
Saint George, SC
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is November (0.91").
Average rainfall days in December
Saint George, SC
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in December
Saint George, SC
- Average snowfall in December: 0"
The months with the highest snowfall are January and February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Saint George, SC
- Average snowfall days in December: 0.2 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
Saint George, 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 30min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Saint George, SC
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (8.7 days).
Average UV index in December
Saint George, 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
Saint George, SC
- Average cloud cover in December: 42
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Saint George, SC
- 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).
