December weather forecastHolston Mill, VA
December
Weather in December
The first month of the winter, December, is also a frosty month in Holston Mill, Virginia, with an average temperature fluctuating between 43.9°F (6.6°C) and 30.2°F (-1°C).Temperature
December is characterized by a mild reduction in the average high-temperature, from a fresh 51.8°F (11°C) in November to a frosty 43.9°F (6.6°C). During the nights in December, Holston Mill experiences a consistent average temperature of 30.2°F (-1°C).Humidity
In Holston Mill, Virginia, the average relative humidity in December is 80%.Rainfall
In Holston Mill, Virginia, in December, during 11.9 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 191 rainfall days, and 30.87" (784mm) of precipitation is accumulated.Snowfall
Months with snowfall in Holston Mill are January through May, October through December. The month with the most snowfall in Holston Mill is December, when snow falls for 7.2 days and typically aggregates up to 4.8" (122mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 5:10 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:20 pm EST.
Sunshine
In Holston Mill, the average sunshine in December is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Holston Mill, Virginia. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 2 in December transforms into this advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Boost your sun resistance with garments that are densely woven yet spacious. 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
Holston Mill, VA
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in December
Holston Mill, VA
- 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 (29.99"Hg).
Average wind speed in December
Holston Mill, VA
- Average wind speed in December: 7.3mph
The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Holston Mill, VA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (77%).
Average rainfall in December
Holston Mill, VA
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Holston Mill, VA
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is July (22 days).
The month with the least rainy days is November (10.8 days).
Average snowfall in December
Holston Mill, VA
- Average snowfall in December: 4.8"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Holston Mill, VA
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Holston Mill, VA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Holston Mill, VA
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is May (6.7 days).
Average UV index in December
Holston Mill, VA
- Average UV index in December: 2
The month with the highest UV index is 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
Holston Mill, VA
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are June, July and August (Cloud cover 40).
Average visibility in December
Holston Mill, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
