December weather forecast
Colley, VA

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Weather in December

The first month of the winter, December, is also a frosty month in Colley, Virginia, with an average temperature ranging between max 45°F (7.2°C) and min 32.4°F (0.2°C).

Temperature

A subtle change in temperatures is noted as November gives way to December, with average highs reducing from a fresh 53.2°F (11.8°C) to a chilly 45°F (7.2°C). The temperature lowers to an average of 32.4°F (0.2°C) during December nights.

Humidity

The average relative humidity in December is 80%.

Rainfall

In Colley, in December, it is raining for 10.8 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, there are 169.1 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Colley, in December, snow falls for 6.7 days, with typically accumulated 4.61" (117mm) of snow. In Colley, during the entire year, snow falls for 36.4 days and aggregates up to 22.36" (568mm) of snow.

Daylight

December has the shortest days of the year in Colley, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 7:24 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:22 pm EST.

Sunshine

In December, the average sunshine is 4.6h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What is the temperature in December?

In Colley, 45°F (7.2°C) is the average high-temperature and 32.4°F (0.2°C) is the average low-temperature during December. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is evaluated at 89.6°F (32°C).

What is the average humidity in December?

In Colley, the average relative humidity in December is 80%.

How many days does it rain in December?

In Colley, in December, during 10.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.

How many days does it snow in December?

In December, it is snowing for 6.7 days. Throughout December, 4.61" (117mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year in Colley, with an average of 9h and 42min of daylight.

What is the average length of the day in December?

In Colley, the average day length in December is 9h and 40min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:24 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:22 pm EST.

How many hours of sunshine does Colley have in December?

In Colley, the average sunshine duration in December is 4.6h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.

What is the UV index reading in December?

In Colley, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Colley, VA

Average temperature in December - Colley, VA
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in December
Colley, VA

Average pressure in December - Colley, VA
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Colley, VA

Average wind speed in December - Colley, VA
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in December
Colley, VA

Average humidity in December - Colley, VA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and November (76%).

Average rainfall in December
Colley, VA

Average rainfall in December - Colley, VA
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in December
Colley, VA

Average rainfall days in December - Colley, VA
  • Average rainfall days in December: 10.8 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
Colley, VA

Average snowfall in December - Colley, VA
  • Average snowfall in December: 4.61"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Colley, VA

Average snowfall days in December - Colley, VA
  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Colley, VA

Average daylight in December / Average sunshine in December - Colley, VA
  • Average daylight in December: 9h and 4min

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: 4h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Colley, VA

Average sunshine days in December - Colley, VA
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in December
Colley, VA

Average UV index in December - Colley, 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 and December (UV index 2).

Average cloud cover in December
Colley, VA

Average cloud cover in December - Colley, VA
  • Average cloud cover in December: 55

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Colley, VA

Average visibility in December - Colley, VA
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Colley, Virginia, USA

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