December weather forecastSylvania, GA
December
Weather in December
The first month of the winter, December, is still a mild month in Sylvania, Georgia, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 59°F (15°C).Temperature
Transition into December subtly marks a drop in the average high-temperature, moderately moving from a refreshing 65.1°F (18.4°C) in November to a mild 59°F (15°C). During December, the temperature tends to dip to an average of 44.6°F (7°C) at night.Humidity
In Sylvania, Georgia, the average relative humidity in December is 76%.Rainfall
In Sylvania, in December, it is raining for 10.6 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, there are 159.8 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
In Sylvania, snow does not fall in March through December.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December in Sylvania, sunrise is at 7:11 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:31 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.5h of sunshine.UV index
The months with the lowest UV index in Sylvania are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 3 turns into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sylvania, GA
- Average high temperature in December: 59°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 (55.6°F).
- Average low temperature in December: 44.6°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 (39.9°F).
Average pressure in December
Sylvania, GA
- 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
Sylvania, GA
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Sylvania, GA
- Average humidity in December: 76%
The month with the highest relative humidity is August (77%).
The months with the lowest relative humidity are January and November (71%).
Average rainfall in December
Sylvania, GA
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in December
Sylvania, GA
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in December
Sylvania, GA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Sylvania, GA
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Sylvania, GA
- 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: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Sylvania, GA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (8.3 days).
Average UV index in December
Sylvania, GA
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Sylvania, GA
- Average cloud cover in December: 41
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in December
Sylvania, 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).
