December weather forecastSwanson Mill, GA
December
Weather in December
December, the first month of the winter in Swanson Mill, is still a cool month, with an average temperature fluctuating between 36.5°F (2.5°C) and 50.9°F (10.5°C).Temperature
Swanson Mill's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's mild 58.8°F (14.9°C) to a fresh 50.9°F (10.5°C). During December, Swanson Mill records an average temperature of 36.5°F (2.5°C) at night.Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In Swanson Mill, during December, the rain falls for 12.2 days and regularly aggregates up to 3.94" (100mm) of precipitation. Throughout the year, there are 172.4 rainfall days, and 40.67" (1033mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 1.5 days. Throughout December, 0.28" (7mm) of snow is accumulated. Throughout the year, there are 8 snowfall days, and 2.36" (60mm) of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:30 am and sunset at 5:29 pm. On the last day of December, in Swanson Mill, sunrise is at 7:48 am and sunset at 5:39 pm EST.
Sunshine
With an average of 5h 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. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Enhance your sun protection with tightly woven, yet airy clothing. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Swanson Mill, GA
- Average high temperature in December: 50.9°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in December
Swanson Mill, GA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Swanson Mill, GA
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in December
Swanson Mill, GA
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are August, October and November (74%).
Average rainfall in December
Swanson Mill, GA
- Average rainfall in December: 3.94"
The wettest month (with the highest rainfall) is July (4.06").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in December
Swanson Mill, GA
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in December
Swanson Mill, GA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Swanson Mill, GA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Swanson Mill, GA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Swanson Mill, GA
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in December
Swanson Mill, GA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Swanson Mill, GA
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Swanson Mill, GA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
