December weather forecast
Gunston Heights, VA

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Weather in December

The first month of the winter, December, is still a chilly month in Gunston Heights, Virginia, with an average temperature varying between 33.6°F (0.9°C) and 46.6°F (8.1°C).

Temperature

Gunston Heights's December weather features a light decline in high-temperatures, reducing from a cool 54.9°F (12.7°C) in November to a chilly 46.6°F (8.1°C). The average low-temperature of 33.6°F (0.9°C) is witnessed in Gunston Heights during December.

Humidity

The months with the highest humidity are May, October and December, with an average relative humidity of 77%.

Rainfall

In December, the rain falls for 10.7 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. In Gunston Heights, during the entire year, the rain falls for 164.3 days and collects up to 32.32" (821mm) of precipitation.

Snowfall

Months with snowfall in Gunston Heights are January through April and December. December is the first month it typically snows in Gunston Heights, Virginia. Throughout December, in the average 2.1 snowfall days, it receives 1.42" (36mm) of snow. Throughout the year, there are 14.6 snowfall days, and 7.8" (198mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:08 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:57 pm EST.

Sunshine

February and December, with an average of 5.2h of sunshine, are months with the least sunshine in Gunston Heights.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Gunston Heights. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. 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. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the temperature in December in Gunston Heights?

During December, Gunston Heights experiences an average high-temperature of 46.6°F (8.1°C) and a low-temperature of 33.6°F (0.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 96.8°F (36°C).

What is the most humid month in Gunston Heights?

May, October and December, with an average relative humidity of 77%, are most humid months.

What is the average humidity in December in Gunston Heights?

In December, the average relative humidity is 77%.

How much does it rain in Gunston Heights in December?

In Gunston Heights, Virginia, in December, it is raining for 10.7 days, with typically 2.68" (68mm) of accumulated precipitation.

When does it start to snow in Gunston Heights?

December is the first month it typically snows. Throughout December, in the average 2.1 snowfall days, it receives 1.42" (36mm) of snow.

What is the month with the shortest days in Gunston Heights?

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

How many hours of daylight does Gunston Heights have in December?

In Gunston Heights, Virginia, the average day length in December is 9h and 31min.

When are sunrise and sunset in December in Gunston Heights?

On the first day of December in Gunston Heights, sunrise is at 7:08 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:57 pm EST.

What is the month with the least sunshine in Gunston Heights?

February and December, with an average of 5.2h of sunshine, are months with the least sunshine.

How long on average sun shines in December in Gunston Heights?

The average sunshine duration in December is 5.2h.

What are the months with the lowest UV index in Gunston Heights?

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Gunston Heights.

What is the UV index intensity in December in Gunston Heights?

In December, the average daily maximum UV index in Gunston Heights is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Gunston Heights, VA

Average temperature in December - Gunston Heights, VA
  • Average high temperature in December: 46.6°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in December: 33.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in December
Gunston Heights, VA

Average pressure in December - Gunston Heights, 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).

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Average wind speed in December
Gunston Heights, VA

Average wind speed in December - Gunston Heights, VA
  • Average wind speed in December: 6.2mph

The windiest months (with the highest average wind speed) are March and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
Gunston Heights, VA

Average humidity in December - Gunston Heights, VA
  • Average humidity in December: 77%

The months with the highest relative humidity are May, October and December (77%).
The months with the lowest relative humidity are April and July (72%).

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Average rainfall in December
Gunston Heights, VA

Average rainfall in December - Gunston Heights, VA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in December
Gunston Heights, VA

Average rainfall days in December - Gunston Heights, VA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in December
Gunston Heights, VA

Average snowfall in December - Gunston Heights, VA
  • Average snowfall in December: 1.42"

The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in December
Gunston Heights, VA

Average snowfall days in December - Gunston Heights, VA
  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Gunston Heights, VA

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

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 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 February and December (Average sunshine: 5h and 12min).

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Average sunshine days in December
Gunston Heights, VA

Average sunshine days in December - Gunston Heights, VA
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.6 days).

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Average UV index in December
Gunston Heights, VA

Average UV index in December - Gunston Heights, 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, November and December (UV index 2).

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Average cloud cover in December
Gunston Heights, VA

Average cloud cover in December - Gunston Heights, VA
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in December
Gunston Heights, VA

Average visibility in December - Gunston Heights, VA
  • Average visibility in December: 6mi

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

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Gunston Heights, Virginia, USA

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