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
The transition into December subtly indicates a reduction in the average high-temperature, down to a comfortable 61.9°F (16.6°C) from November's pleasant 68.2°F (20.1°C). Nightly temperatures in Mount Vernon drop to an average low of 46.6°F (8.1°C) in December.Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
In Mount Vernon, in December, during 11 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, in Mount Vernon, there are 156.2 rainfall days, and 33.35" (847mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
December has the shortest days of the year, with an average of 10h and 12min of daylight.On the first day of the month, sunrise is at 6:33 am and sunset at 4:49 pm. On the last day of December, sunrise is at 6:50 am and sunset at 5:00 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.2h of sunshine.UV index
The months with the lowest UV index are January 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 exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 3 in December translates into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What are the temperatures in Mount Vernon in December?
What is the most humid month in Mount Vernon?
What is the average humidity in December in Mount Vernon?
How many days does it rain in December in Mount Vernon?
When it does not snow in Mount Vernon?
Does it snow in Mount Vernon in December?
What is the month with the shortest days in Mount Vernon?
What is the average length of the day in December in Mount Vernon?
When are sunrise and sunset in December in Mount Vernon?
What is the month with the least sunshine in Mount Vernon?
How many hours of sunshine does Mount Vernon have in December?
What is the month with the lowest UV index in Mount Vernon?
What is the UV index reading in December in Mount Vernon?
Average temperature in December
Mount Vernon, AL
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (58.5°F).
- Average low temperature in December: 46.6°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in December
Mount Vernon, AL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Mount Vernon, AL
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
Mount Vernon, AL
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Mount Vernon, AL
- Average rainfall in December: 2.95"
The wettest months (with the highest rainfall) are July and August (4.57").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in December
Mount Vernon, AL
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in December
Mount Vernon, AL
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.2").
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, AL
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 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
Mount Vernon, AL
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Mount Vernon, AL
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (6.1 days).
Average UV index in December
Mount Vernon, AL
- 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, AL
- 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 October (Cloud cover 25).
Average visibility in December
Mount Vernon, AL
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February and December (5mi).
Mount Vernon, Alabama, USA
Weather forecast for your location
2. Allow the app to use your location
