December weather forecastKopperston, WV
December
Weather in December
The first month of the winter, December, is also a frosty month in Kopperston, West Virginia, with an average temperature ranging between min 31.1°F (-0.5°C) and max 43.5°F (6.4°C).Temperature
The shift from November to December includes a small decrease in the average high-temperature, from a cool 51.8°F (11°C) to a frosty 43.5°F (6.4°C). During December, Kopperston records an average temperature of 31.1°F (-0.5°C) at night.Humidity
The average relative humidity in December is 81%.Rainfall
In Kopperston, in December, during 9.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Kopperston, during the entire year, the rain falls for 135.9 days and collects up to 16.46" (418mm) of precipitation.Snowfall
Months with snowfall in Kopperston are January through May, October through December. In Kopperston, in December, snow falls for 5.4 days, with typically accumulated 2.05" (52mm) of snow. Throughout the year, there are 30.3 snowfall days, and 8.66" (220mm) of snow is accumulated.Daylight
The month with the shortest days in Kopperston 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 5:07 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:17 pm EST.
Sunshine
In Kopperston, the average sunshine in December is 4.5h.UV index
The months with the lowest UV index in Kopperston are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kopperston, 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
Kopperston, 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
Kopperston, 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
Kopperston, 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
Kopperston, 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
Kopperston, 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
Kopperston, 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
Kopperston, 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
Kopperston, WV
- Average daylight in December: 9h and 36min
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 30min
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
Kopperston, 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
Kopperston, 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
Kopperston, 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
Kopperston, 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).
