December weather forecastAtlanta, GA
December
Weather in December
December rings in the winter season, with plummeting temperatures compelling locals and visitors to don scarves and gloves. From the temperatures spotted in November, there’s a drop in highs to an average of 53.8°F (12.1°C). The dip in temperature and shorter days propagate the fitting atmosphere for the Christmas season. Despite occasional rain showers, it’s generally dry, enabling the uninterrupted holding of holiday festivities. As we bid goodbye to the year, remember to get the most out of the winter sun gracing Atlanta’s skies during the day.Temperature
Atlanta's progression into December involves a minor drop in the average high-temperature, slightly receding from a comfortable 61.3°F (16.3°C) in November to a fresh 53.8°F (12.1°C). In Atlanta, the average temperature during the nights of December drops to a cold 39.7°F (4.3°C).Humidity
December is the most humid month in Atlanta, with an average relative humidity of 77%.Rainfall
In Atlanta, in December, it is raining for 9.5 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, in Atlanta, there are 134.6 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows in Atlanta, Georgia. Throughout December, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. In Atlanta, Georgia, during the entire year, snow falls for 2.3 days and aggregates up to 0.59" (15mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:24 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:39 pm EST.
Sunshine
With an average of 5.1h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Atlanta, Georgia. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Boost your sun resistance with garments that are densely woven yet spacious. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Atlanta, GA
- Average high temperature in December: 53.8°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).
Average pressure in December
Atlanta, GA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Atlanta, GA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Atlanta, GA
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall in December
Atlanta, GA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is August (2.32").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in December
Atlanta, GA
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in December
Atlanta, GA
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Atlanta, GA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.9 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
Atlanta, GA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Atlanta, GA
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Atlanta, GA
- Average UV index in December: 2
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Atlanta, GA
- Average cloud cover in December: 46
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Atlanta, GA
- 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).
