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
Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a mild 57.9°F (14.4°C) to a cool 50.2°F (10.1°C). Sumac's nighttime temperature in December drops to an average of 36.1°F (2.3°C).Humidity
With an average relative humidity of 81%, December is the most humid month in Sumac.Rainfall
In Sumac, in December, it is raining for 14.2 days, with typically 4.45" (113mm) of accumulated precipitation. Throughout the year, there are 184.5 rainfall days, and 47.24" (1200mm) of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Sumac. In December, it is snowing for 1.8 days. Throughout December, 0.55" (14mm) of snow is accumulated. Throughout the year, there are 11.6 snowfall days, and 4.37" (111mm) 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 December, sunrise is at 7:29 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:38 pm EST.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. 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
What is the usual temperature for Sumac in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Sumac, GA
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in December
Sumac, GA
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Sumac, GA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Sumac, GA
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, October and November (76%).
Average rainfall in December
Sumac, GA
- Average rainfall in December: 4.45"
The wettest month (with the highest rainfall) is July (4.84").
The driest month (with the least rainfall) is September (2.91").
Average rainfall days in December
Sumac, GA
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in December
Sumac, GA
- Average snowfall in December: 0.55"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Sumac, GA
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.6 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
Sumac, GA
- Average daylight in December: 9h and 5min
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 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Sumac, GA
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in December
Sumac, 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, February and December (UV index 2).
Average cloud cover in December
Sumac, GA
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Sumac, GA
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Sumac, Georgia, USA
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