December weather forecastSylvester, GA
December
Weather in December
The first month of the winter, December, is still a mild month in Sylvester, Georgia, with an average temperature fluctuating between 45.5°F (7.5°C) and 60.6°F (15.9°C).Temperature
The transition into December subtly indicates a reduction in the average high-temperature, down to a mild 60.6°F (15.9°C) from November's comfortable 67.1°F (19.5°C). During the month of December, an average low-temperature of 45.5°F (7.5°C) is recorded.Humidity
In December, the average relative humidity is 76%.Rainfall
In December, in Sylvester, the rain falls for 11.5 days. Throughout December, 3.66" (93mm) of precipitation is accumulated. In Sylvester, during the entire year, the rain falls for 173.7 days and collects up to 34.49" (876mm) of precipitation.Snowfall
February through December are months without snowfall in Sylvester.Daylight
December has the shortest days of the year, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 5:31 pm. On the last day of December, sunrise is at 7:34 am and sunset at 5:42 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in December leads to these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sylvester, GA
- Average high temperature in December: 60.6°F
The warmest months (with the highest average high temperature) are July and August (89.1°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in December: 45.5°F
The months with the highest average low temperature are July and August (72.9°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in December
Sylvester, GA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in December
Sylvester, GA
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Sylvester, 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, October and November (71%).
Average rainfall in December
Sylvester, GA
- Average rainfall in December: 3.66"
The wettest month (with the highest rainfall) is August (3.98").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in December
Sylvester, GA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (23.1 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Sylvester, GA
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Sylvester, GA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (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
Sylvester, GA
- Average daylight in December: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 5h and 24min
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 24min).
Average sunshine days in December
Sylvester, GA
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (5.3 days).
Average UV index in December
Sylvester, 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
Sylvester, GA
- Average cloud cover in December: 41
The month with the most cloud cover is December (Cloud cover 41).
The months with the least cloud cover are May and October (Cloud cover 28).
Average visibility in December
Sylvester, 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).
