December weather forecastJackson Mill, WV
December
Weather in December
The first month of the winter, December, is still a chilly month in Jackson Mill, West Virginia, with an average temperature fluctuating between 42.8°F (6°C) and 30.9°F (-0.6°C).Temperature
December sees a slight reduction in average high-temperature, with a shift from a cool 51.6°F (10.9°C) in November to a frosty 42.8°F (6°C). December nights cool down to an average low-temperature of 30.9°F (-0.6°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 13 days. Throughout December, 3.5" (89mm) of precipitation is accumulated. Throughout the year, there are 182.8 rainfall days, and 38.62" (981mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Jackson Mill, during December, snow falls for 12.1 days and regularly aggregates up to 5.67" (144mm) of snow. In Jackson Mill, during the entire year, snow falls for 58.9 days and aggregates up to 32.17" (817mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:22 am and sunset at 4:59 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:09 pm EST.
Sunshine
In Jackson Mill, the average sunshine in December is 3.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jackson Mill, WV
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Jackson Mill, WV
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Jackson Mill, WV
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Jackson Mill, WV
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Jackson Mill, WV
- Average rainfall in December: 3.5"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Jackson Mill, WV
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in December
Jackson Mill, WV
- Average snowfall in December: 5.67"
The month with the highest snowfall is January (8.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Jackson Mill, WV
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jackson Mill, WV
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 3h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Jackson Mill, WV
- Average sunshine days in December: 9 days
The month with the most sunshine days is October (14.1 days).
The months with the least sunshine days are January and February (7.6 days).
Average UV index in December
Jackson Mill, WV
- Average UV index in December: 2
The months with the highest UV index are May, 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
Jackson Mill, WV
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Jackson Mill, WV
- Average visibility in December: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January and February (4mi).
