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 shift from November to December coincides with a small decrease in the average high-temperature, down to a chilly 43.5°F (6.4°C) from a fresh 51.8°F (11°C). Coal Mountain experiences an average low-temperature of 31.1°F (-0.5°C) in month of December.Humidity
In Coal Mountain, the average relative humidity in December is 81%.Rainfall
In Coal Mountain, in December, it is raining for 9.5 days, with typically 1.57" (40mm) of accumulated precipitation. In Coal Mountain, West Virginia, during the entire year, the rain falls for 135.9 days and collects up to 16.46" (418mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 5.4 days. Throughout December, 2.05" (52mm) of snow is accumulated. In Coal Mountain, during the entire year, snow falls for 30.3 days and aggregates up to 8.66" (220mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:23 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:18 pm EST.
Sunshine
The average sunshine in December is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Coal Mountain?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Coal Mountain have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Coal Mountain, WV
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Coal Mountain, WV
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Coal Mountain, WV
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Coal Mountain, WV
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April, June, July, August and November (77%).
Average rainfall in December
Coal Mountain, WV
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in December
Coal Mountain, WV
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Coal Mountain, WV
- Average snowfall in December: 2.05"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Coal Mountain, WV
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Coal Mountain, WV
- 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Coal Mountain, WV
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in December
Coal Mountain, WV
- 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, November and December (UV index 2).
Average cloud cover in December
Coal Mountain, WV
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Coal Mountain, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Coal Mountain, West Virginia, USA
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