December weather forecastGreenway, VA
December
Weather in December
December, the first month of the winter in Greenway, is still a chilly month, with an average temperature ranging between min 34.2°F (1.2°C) and max 46°F (7.8°C).Temperature
In December, the average high-temperature marginally decreases from a fresh 54.9°F (12.7°C) in November to a frosty 46°F (7.8°C). Greenway's nights in December experience an average temperature drop to a wintry 34.2°F (1.2°C).Humidity
In December, the average relative humidity is 75%.Rainfall
In Greenway, in December, it is raining for 10 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 149.1 rainfall days, and 26.14" (664mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Greenway. December is the first month it typically snows. Throughout December, in the average 1.7 snowfall days, it receives 0.79" (20mm) of snow. Throughout the year, in Greenway, there are 11.7 snowfall days, and 6.3" (160mm) of snow is accumulated.Daylight
The month with the shortest days in Greenway, Virginia, is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:56 pm EST.
Sunshine
January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine in Greenway.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Greenway, VA
- Average high temperature in December: 46°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Greenway, VA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Greenway, VA
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Greenway, VA
- Average humidity in December: 75%
The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in December
Greenway, VA
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in December
Greenway, VA
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in December
Greenway, VA
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Greenway, VA
- Average snowfall days in December: 1.7 days
The months with the highest number of snowfall days are January and February (3.8 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
Greenway, VA
- 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: 5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Greenway, VA
- Average sunshine days in December: 19 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
Greenway, VA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Greenway, VA
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Greenway, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
