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
As December begins, there is a minor decrease in the average high-temperature, softly falling from a mild 59.5°F (15.3°C) in November to a fresh 52.3°F (11.3°C). An average low-temperature of 38.3°F (3.5°C) is anticipated throughout the nights during December.Humidity
December is the most humid month in Cumming, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 13.3 days. Throughout December, 4.17" (106mm) of precipitation is accumulated. Throughout the year, there are 185.1 rainfall days, and 44.29" (1125mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 0.7 days. Throughout December, 0.67" (17mm) of snow is accumulated. In Cumming, during the entire year, snow falls for 4.8 days and aggregates up to 3.35" (85mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:24 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:37 pm EST.
Sunshine
The month with the least sunshine in Cumming is December, with an average of 5.1h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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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?
How many days does it snow in December?
What is the month with the shortest days in Cumming?
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 in Cumming?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Cumming, GA
- Average high temperature in December: 52.3°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.4°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in December
Cumming, 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
Cumming, GA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Cumming, GA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July, August and October (72%).
Average rainfall in December
Cumming, GA
- Average rainfall in December: 4.17"
The wettest month (with the highest rainfall) is August (4.88").
The driest month (with the least rainfall) is October (2.4").
Average rainfall days in December
Cumming, GA
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Cumming, GA
- Average snowfall in December: 0.67"
The months with the highest snowfall are January and February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Cumming, GA
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is January (1.8 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
Cumming, 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 1min
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 6min).
Average sunshine days in December
Cumming, GA
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8 days).
Average UV index in December
Cumming, 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 and December (UV index 2).
Average cloud cover in December
Cumming, GA
- Average cloud cover in December: 46
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Cumming, 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).
Cumming, Georgia, USA
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