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 Alphoretta enters December, the average high-temperature decreases from the a cool 54.5°F (12.5°C) of November to a chilly 45.5°F (7.5°C). Throughout December, Alphoretta experiences a low-temperature average of 33.1°F (0.6°C).Humidity
In December, the average relative humidity is 79%.Rainfall
In December, the rain falls for 13.5 days. Throughout December, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 181.8 rainfall days, and 33.43" (849mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Alphoretta, Kentucky, in December, snow falls for 6.7 days, with typically accumulated 3.23" (82mm) of snow. Throughout the year, there are 35.7 snowfall days, and 14.09" (358mm) of snow is accumulated.Daylight
December has the shortest days of the year in Alphoretta, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:27 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:23 pm EST.
Sunshine
In Alphoretta, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
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 is the sunrise / sunset in December?
How long on average sun shines in December in Alphoretta?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Alphoretta, KY
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in December
Alphoretta, KY
- Average pressure in December: 30.14"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
Alphoretta, KY
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Alphoretta, KY
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and November (74%).
Average rainfall in December
Alphoretta, KY
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Alphoretta, KY
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in December
Alphoretta, KY
- Average snowfall in December: 3.23"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Alphoretta, KY
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Alphoretta, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Alphoretta, KY
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is October (16.1 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in December
Alphoretta, KY
- 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
Alphoretta, KY
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Alphoretta, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
Alphoretta, Kentucky, USA
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