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
In December, the average high-temperature marginally drops from a cool 52.2°F (11.2°C) in November to a chilly 43.2°F (6.2°C). In W"ter, the average low-temperature is 29.7°F (-1.3°C).Humidity
The average relative humidity in December in W"ter is 78%.Rainfall
In W"ter, it is raining for 11 days, with typically 2.4" (61mm) of accumulated precipitation. In W"ter, during the entire year, the rain falls for 167.2 days and collects up to 29.61" (752mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in W"ter. In December, in W"ter, it is snowing for 4.5 days. Throughout December, 3.15" (80mm) of snow is accumulated. In W"ter, during the entire year, snow falls for 26.2 days and aggregates up to 17.83" (453mm) of snow.Daylight
With an average of 9h and 28min of daylight, December has the shortest days of the year in W"ter, Virginia.On the first day of the month, sunrise is at 7:12 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:59 pm EST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in W"ter, Virginia. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
FAQ
What is the temperature in December in W"ter?
What is the average humidity in December in W"ter?
How many days does it rain in December in W"ter?
How many days does it snow in December in W"ter?
What is the month with the shortest days in W"ter?
How many hours of daylight does W"ter have in December?
When is the sunrise / sunset in December in W"ter?
How long on average sun shines in December in W"ter?
What are the months with the lowest UV index in W"ter?
How high is the UV index in December in W"ter?
Average temperature in December
Winchester, VA
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Winchester, 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
Winchester, VA
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Winchester, VA
- Average humidity in December: 78%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Winchester, VA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in December
Winchester, VA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Winchester, VA
- Average snowfall in December: 3.15"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Winchester, VA
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Winchester, VA
- Average daylight in December: 9h and 28min
The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 28min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Winchester, VA
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10 days).
Average UV index in December
Winchester, 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, February, November and December (UV index 2).
Average cloud cover in December
Winchester, VA
- Average cloud cover in December: 46
The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Winchester, VA
- Average visibility in December: 6mi
The months with the highest visibility are February, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, March, May, September and October (5mi).
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