December weather forecastAustell, GA
December
Weather in December
Coming to the year's end, Austell experiences the onset of the cold winter season in December. Temperatures hover between 38.8°F (3.8°C) and 53.8°F (12.1°C), presenting a pivotal shift from the mild November temperatures. The sunshine hours decrease due to shorter daylight hours, contributing to the coolness of the season. Although there is an increase in rain, Austell experiences the first snowfalls of the season in December. Wind speeds reach their highest average, signifying the full onset of winter.Temperature
December in Austell heralds a minor drop in average high-temperature, sliding from November's comfortable 61°F (16.1°C) to a fresh 53.8°F (12.1°C). During December, Austell's temperature falls to a steady low-temperature average of 38.8°F (3.8°C).Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In Austell, in December, during 13.2 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. Throughout the year, there are 178.7 rainfall days, and 41.5" (1054mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Austell. In Austell, in December, snow falls for 0.6 days, with typically accumulated 0.71" (18mm) of snow. Throughout the year, there are 3.9 snowfall days, and 2.4" (61mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 5:29 pm. On the last day of December, in Austell, sunrise is at 7:43 am and sunset at 5:40 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.1h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Consider this! The reflection from 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
Austell, GA
- Average high temperature in December: 53.8°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in December: 38.8°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 (34.2°F).
Average pressure in December
Austell, 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
Austell, GA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Austell, GA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in December
Austell, GA
- Average rainfall in December: 3.46"
The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is October (2.17").
Average rainfall days in December
Austell, GA
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Austell, GA
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Austell, GA
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is January (1.2 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
Austell, 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 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Austell, GA
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (7.6 days).
Average UV index in December
Austell, GA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Austell, GA
- Average cloud cover in December: 47
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Austell, 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).





