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
A minor decrease in the average high-temperature is observed in Roswell during December, shifting from a comfortable 60.8°F (16°C) in November to a cool 53.4°F (11.9°C). Throughout December, Roswell experiences a low-temperature average of 39°F (3.9°C).Humidity
December is the most humid month, with an average relative humidity of 77%.Rainfall
In Roswell, Georgia, in December, during 13.8 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. Throughout the year, in Roswell, there are 183.1 rainfall days, and 45.12" (1146mm) of precipitation is accumulated.Snowfall
Months with snowfall in Roswell are January through March, November and December. In Roswell, in December, during 0.6 snowfall days, 0.71" (18mm) of snow is typically accumulated. In Roswell, during the entire year, snow falls for 4.2 days and aggregates up to 2.95" (75mm) of snow.Daylight
December has the shortest days of the year in Roswell, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 5:28 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:38 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index in Roswell. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What are the temperatures in Roswell in December?
What is the most humid month in Roswell?
What is the average humidity in December in Roswell?
How many days does it rain in December in Roswell?
How many days does it snow in December in Roswell?
What is the month with the shortest days in Roswell?
What is the average length of the day in December in Roswell?
What time are sunrise and sunset in December in Roswell?
What is the month with the least sunshine in Roswell?
How many hours of sunshine does Roswell have in December?
What is the month with the lowest UV index in Roswell?
What is the UV index reading in December in Roswell?
Average temperature in December
Roswell, GA
- Average high temperature in December: 53.4°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in December: 39°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in December
Roswell, 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
Roswell, GA
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Roswell, GA
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (68%).
Average rainfall in December
Roswell, GA
- Average rainfall in December: 3.82"
The wettest month (with the highest rainfall) is August (5.55").
The driest month (with the least rainfall) is October (2.36").
Average rainfall days in December
Roswell, GA
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is July (20.8 days).
The months with the least rainy days are October and November (10.3 days).
Average snowfall in December
Roswell, GA
- Average snowfall in December: 0.71"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Roswell, GA
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is January (1.5 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
Roswell, GA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
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 July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Roswell, GA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (8 days).
Average UV index in December
Roswell, 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
Roswell, GA
- Average cloud cover in December: 47
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Roswell, 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).
Roswell, Georgia, USA
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