Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December sees a slight reduction in average high-temperature, with a shift from an enjoyable 62.8°F (17.1°C) in November to a moderate 55.6°F (13.1°C). The nighttime temperature, during December, averages of 40.6°F (4.8°C).Humidity
The most humid month is December, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 10.3 days. Throughout December, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 148.5 rainfall days, and 21.3" (541mm) of precipitation is accumulated.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 2.2 snowfall days, and 0.47" (12mm) of snow is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:26 am and sunset at 5:32 pm. On the last day of December, in Rockridge, Georgia, sunrise is at 7:44 am and sunset at 5:43 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.1h of sunshine.UV index
The months with the lowest UV index are January, February 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 unprotected exposure to Sun's UV rays for the average person.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
When does it start snowing in Rockridge?
What is the month with the shortest days?
How many hours of daylight does Rockridge have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Rockridge have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Rockridge, GA
- Average high temperature in December: 55.6°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in December: 40.6°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 (36.1°F).
Average pressure in December
Rockridge, 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 (29.98"Hg).
Average wind speed in December
Rockridge, GA
- Average wind speed in December: 7.3mph
The windiest months (with the highest average wind speed) are January and February (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Rockridge, GA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in December
Rockridge, GA
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is July (2.8").
The driest month (with the least rainfall) is October (1.02").
Average rainfall days in December
Rockridge, GA
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in December
Rockridge, GA
- Average snowfall in December: 0.08"
The months with the highest snowfall are January and February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Rockridge, GA
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (0.8 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
Rockridge, 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 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Rockridge, GA
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in December
Rockridge, GA
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Rockridge, GA
- Average cloud cover in December: 46
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
Rockridge, GA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Rockridge, Georgia, USA
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