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 commencement of December involves a temperature shift, with the average high-temperature dropping from a cool 55.2°F (12.9°C) in November to a frosty 45.7°F (7.6°C). Charleston experiences an average nighttime temperature of 34°F (1.1°C) in the month of December.Humidity
In December, the average relative humidity in Charleston is 78%.Rainfall
In Charleston, in December, it is raining for 7.5 days, with typically 0.91" (23mm) of accumulated precipitation. In Charleston, Kentucky, during the entire year, the rain falls for 118.1 days and collects up to 12.28" (312mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Charleston, Kentucky, during December, snow falls for 1.7 days and regularly aggregates up to 0.12" (3mm) of snow. In Charleston, during the entire year, snow falls for 8.7 days and aggregates up to 0.91" (23mm) of snow.Daylight
The month with the shortest days in Charleston, Kentucky, is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:46 am and sunset at 4:33 pm. On the last day of December, in Charleston, sunrise is at 7:04 am and sunset at 4:43 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index in Charleston are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Charleston in December?
What is the average humidity in December in Charleston?
How much does it rain in Charleston in December?
How much does it snow in Charleston in December?
What is the month with the shortest days in Charleston?
How many hours of daylight does Charleston have in December?
When is the sunrise / sunset in December in Charleston?
How long on average sun shines in December in Charleston?
When is the lowest UV index in Charleston?
How high is the UV index in December in Charleston?
Average temperature in December
Charleston, KY
- Average high temperature in December: 45.7°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 (41.2°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in December
Charleston, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Charleston, KY
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in December
Charleston, KY
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Charleston, KY
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Charleston, KY
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Charleston, KY
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Charleston, KY
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (2.9 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
Charleston, 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 42min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Charleston, KY
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is May (14.1 days).
Average UV index in December
Charleston, 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
Charleston, KY
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Charleston, KY
- 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).
Charleston, Kentucky, USA
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