December weather forecastFort Defiance, VA
December
Weather in December
The first month of the winter, December, is still a chilly month in Fort Defiance, Virginia, with an average temperature varying between 29.7°F (-1.3°C) and 43.9°F (6.6°C).Temperature
A mild shift in the average high-temperature occurs in December, reducing from a fresh 52.3°F (11.3°C) in November to a chilly 43.9°F (6.6°C). Fort Defiance records an average temperature drop to a subzero cold 29.7°F (-1.3°C) in December.Humidity
In Fort Defiance, the average relative humidity in December is 78%.Rainfall
In Fort Defiance, in December, during 8.6 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Fort Defiance, during the entire year, the rain falls for 144.6 days and collects up to 23.46" (596mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Fort Defiance, during December, snow falls for 2.7 days and regularly aggregates up to 2.09" (53mm) of snow. In Fort Defiance, during the entire year, snow falls for 17.7 days and aggregates up to 14.41" (366mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:05 pm EST.
Sunshine
With an average of 5.2h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fort Defiance. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fort Defiance, VA
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Fort Defiance, VA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Fort Defiance, VA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Fort Defiance, VA
- Average humidity in December: 78%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is January (74%).
Average rainfall in December
Fort Defiance, VA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Fort Defiance, VA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Fort Defiance, VA
- Average snowfall in December: 2.09"
The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Fort Defiance, VA
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Fort Defiance, VA
- Average daylight in December: 9h and 36min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Fort Defiance, VA
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Fort Defiance, VA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Fort Defiance, VA
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in December
Fort Defiance, VA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October and December (5mi).
