December weather forecastGeorgetown, SC
December
Weather in December
The first month of the winter, December, is also a moderate month in Georgetown, South Carolina, with an average temperature varying between 46.8°F (8.2°C) and 59.5°F (15.3°C).Temperature
Georgetown, South Carolina, records an average high-temperature of a moderate 59.5°F (15.3°C) as December arrives, nearly mirroring the previous month's climate. In the month of December, the nighttime temperature in Georgetown dips to a steady average of 46.8°F (8.2°C).Humidity
With an average relative humidity of 79%, December is the most humid month in Georgetown.Rainfall
In Georgetown, in December, it is raining for 10.7 days, with typically 4.21" (107mm) of accumulated precipitation. Throughout the year, in Georgetown, there are 181.9 rainfall days, and 43.07" (1094mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall in Georgetown, South Carolina.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year in Georgetown.On the first day of the month, sunrise is at 7:03 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:20 am and sunset at 5:20 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
The average daily maximum UV index in December in Georgetown is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during December leads to these advisories:
Make use of precautions - It is urged to ward off sun damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Always opt for UVA and UVB-resistant sunglasses on radiant days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Georgetown, SC
- Average high temperature in December: 59.5°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 (55.2°F).
- Average low temperature in December: 46.8°F
The month with the highest average low temperature is July (76.1°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in December
Georgetown, SC
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Georgetown, SC
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Georgetown, SC
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are January, March and November (75%).
Average rainfall in December
Georgetown, SC
- Average rainfall in December: 4.21"
The wettest month (with the highest rainfall) is August (7.28").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Georgetown, SC
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is July (25 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Georgetown, SC
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Georgetown, SC
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (0.3 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
Georgetown, 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 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Georgetown, SC
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is January (19.2 days).
The month with the least sunshine days is July (3.9 days).
Average UV index in December
Georgetown, SC
- Average UV index in December: 4
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in December
Georgetown, SC
- Average cloud cover in December: 40
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Georgetown, 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).
