December weather forecastSpring Grove, VA
December
Weather in December
The first month of the winter, December, is still a cool month in Spring Grove, Virginia, with an average temperature fluctuating between 36.5°F (2.5°C) and 51.1°F (10.6°C).Temperature
The arrival of December corresponds with a light shift in temperature, down from a mild 58.3°F (14.6°C) in November to a cool 51.1°F (10.6°C). Spring Grove, in December, observes a steady average low-temperature of 36.5°F (2.5°C).Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Spring Grove, during December, the rain falls for 9.7 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Spring Grove, Virginia, during the entire year, the rain falls for 132.9 days and collects up to 15.59" (396mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Spring Grove, during December, snow falls for 0.8 days and regularly aggregates up to 0.2" (5mm) of snow. In Spring Grove, during the entire year, snow falls for 7.3 days and aggregates up to 1.69" (43mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:00 pm EST.
Sunshine
In December, the average sunshine is 5.3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Spring Grove, VA
- Average high temperature in December: 51.1°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Spring Grove, VA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Spring Grove, VA
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Spring Grove, VA
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in December
Spring Grove, VA
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Spring Grove, VA
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Spring Grove, VA
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Spring Grove, VA
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.5 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
Spring Grove, VA
- Average daylight in December: 9h and 42min
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 42min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in December
Spring Grove, VA
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in December
Spring Grove, 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
Spring Grove, VA
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Spring Grove, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).
