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's arrival subtly correlates with a reduction in the average high-temperature, down from 65.8°F (18.8°C) in November to a still refreshing 59.9°F (15.5°C). In Mount Vernon, an average low-temperature of 45°F (7.2°C) is recorded during December nights.Humidity
The months with the highest humidity are August, September and December, with an average relative humidity of 76%.Rainfall
In Mount Vernon, during December, the rain falls for 11.5 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 174.5 rainfall days, and 34.13" (867mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The month with the shortest days is December, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:25 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:36 pm EST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk 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:
Exercise prevention - Precautions against solar damage are endorsed. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Mount Vernon have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Mount Vernon have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Mount Vernon, GA
- Average high temperature in December: 59.9°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in December: 45°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).
Average pressure in December
Mount Vernon, GA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in December
Mount Vernon, GA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Mount Vernon, GA
- Average humidity in December: 76%
The months with the highest relative humidity are August, September and December (76%).
The months with the lowest relative humidity are January and November (71%).
Average rainfall in December
Mount Vernon, GA
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in December
Mount Vernon, GA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in December
Mount Vernon, GA
- Average snowfall in December: 0"
The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Mount Vernon, GA
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Mount Vernon, GA
- Average daylight in December: 10h and 1min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Mount Vernon, GA
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (5.4 days).
Average UV index in December
Mount Vernon, GA
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Mount Vernon, GA
- Average cloud cover in December: 42
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in December
Mount Vernon, 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).
Mount Vernon, Georgia, USA
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