December weather forecast
Purcellville, VA

Share

Weather in December

The first month of the winter, December, is also a frosty month in Purcellville, Virginia, with an average temperature varying between 30.9°F (-0.6°C) and 43.7°F (6.5°C).

Temperature

The arrival of December suggests a slight decrease in the average high-temperature, moving from a fresh 52.5°F (11.4°C) in November to a frosty 43.7°F (6.5°C). December is noted for a mean low-temperature of 30.9°F (-0.6°C).

Humidity

The months with the highest humidity are October and December, with an average relative humidity of 78%.

Rainfall

In Purcellville, during December, the rain falls for 10.7 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 162.2 rainfall days, and 31.1" (790mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Purcellville. In Purcellville, in December, during 3.8 snowfall days, 2.68" (68mm) of snow is typically accumulated. Throughout the year, there are 21.9 snowfall days, and 14.88" (378mm) of snow is accumulated.

Daylight

The month with the shortest days in Purcellville is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:11 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:58 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 2 in December leads to these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Purcellville?

In Purcellville, 43.7°F (6.5°C) is the average high-temperature and 30.9°F (-0.6°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 93.2°F (34°C).

What is the most humid month?

The months with the highest humidity are October and December, with an average relative humidity of 78%.

What is the average humidity in December?

In Purcellville, the average relative humidity in December is 78%.

How many days does it rain in December?

In Purcellville, in December, it is raining for 10.7 days, with typically 2.6" (66mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 3.8 days. Throughout December, 2.68" (68mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Purcellville have in December?

The average day length in December is 9h and 28min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:11 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:58 pm EST.

What are the months with the least sunshine?

January and December, with an average of 5.1h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5.1h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December in Purcellville is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe 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
Purcellville, VA

Average temperature in December - Purcellville, VA
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 30.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
Purcellville, VA

Average pressure in December - Purcellville, 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
Purcellville, VA

Average wind speed in December - Purcellville, VA
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in December
Purcellville, VA

Average humidity in December - Purcellville, VA
  • Average humidity in December: 78%

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (73%).

Average rainfall in December
Purcellville, VA

Average rainfall in December - Purcellville, VA
  • Average rainfall in December: 2.6"

The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in December
Purcellville, VA

Average rainfall days in December - Purcellville, VA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).

Average snowfall in December
Purcellville, VA

Average snowfall in December - Purcellville, VA
  • Average snowfall in December: 2.68"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Purcellville, VA

Average snowfall days in December - Purcellville, VA
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Purcellville, VA
  • Average daylight in December: 9h and 3min

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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in December
Purcellville, VA

Average sunshine days in December - Purcellville, VA
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in December
Purcellville, VA

Average UV index in December - Purcellville, 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
Purcellville, VA

Average cloud cover in December - Purcellville, VA
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in December
Purcellville, VA

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

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

Purcellville, Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location