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
As December begins, there is a minor decrease in the average high-temperature, softly falling from a mild 56.1°F (13.4°C) in November to a chilly 49.1°F (9.5°C). Throughout December, an average low-temperature of 39.4°F (4.1°C) is experienced.Humidity
In December, the average relative humidity is 76%.Rainfall
In Greenbackville, in December, during 10.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Greenbackville, Virginia, during the entire year, the rain falls for 128 days and collects up to 16.1" (409mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Greenbackville, during December, snow falls for 0.9 days and regularly aggregates up to 0.08" (2mm) of snow. Throughout the year, there are 5.5 snowfall days, and 0.79" (20mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December in Greenbackville, Virginia, sunrise is at 6:59 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:52 pm EST.
Sunshine
In December, the average sunshine in Greenbackville is 5.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Greenbackville. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Greenbackville?
What is the average humidity in December in Greenbackville?
How many days does it rain in December in Greenbackville?
How much does it snow in Greenbackville in December?
What is the month with the shortest days in Greenbackville?
What is the average length of the day in December in Greenbackville?
When is the sunrise / sunset in December in Greenbackville?
How long on average sun shines in December in Greenbackville?
When is the lowest UV index in Greenbackville?
How high is the UV index in December in Greenbackville?
Average temperature in December
Greenbackville, VA
- Average high temperature in December: 49.1°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 (43.5°F).
- Average low temperature in December: 39.4°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in December
Greenbackville, VA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Greenbackville, VA
- Average wind speed in December: 10.9mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is August (7.9mph).
Average humidity in December
Greenbackville, VA
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (73%).
Average rainfall in December
Greenbackville, VA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is May (1.06").
Average rainfall days in December
Greenbackville, VA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in December
Greenbackville, VA
- Average snowfall in December: 0.08"
The month with the highest snowfall is March (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Greenbackville, VA
- Average snowfall days in December: 0.9 days
The months with the highest number of snowfall days are January and February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Greenbackville, VA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Greenbackville, VA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (14.7 days).
Average UV index in December
Greenbackville, VA
- 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 and December (UV index 2).
Average cloud cover in December
Greenbackville, VA
- Average cloud cover in December: 43
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Greenbackville, VA
- 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).
Greenbackville, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location