December weather forecast
Gunston Heights, VA

Share

Weather in December

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

Temperature

December reveals a small adjustment in temperature, transitioning from an average high of a fresh 54.9°F (12.7°C) in November to a chilly 46.6°F (8.1°C). In Gunston Heights, in December, the average low-temperature is a cold 33.6°F (0.9°C).

Humidity

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

Rainfall

In Gunston Heights, in December, during 10.7 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 164.3 rainfall days, and 32.32" (821mm) of precipitation is accumulated.

Snowfall

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

Daylight

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

Sunshine

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

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

In December, in Gunston Heights, the average high-temperature is 46.6°F (8.1°C), and the average low-temperature is 33.6°F (0.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is estimated at 96.8°F (36°C).

What is the most humid month?

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

What is the average humidity in December?

The average relative humidity in December is 77%.

How much does it rain in December?

In December, the rain falls for 10.7 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

When does it start snowing?

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?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 31min.

What time are sunrise and sunset in December?

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.

What are the months with the least sunshine?

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

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

What is the UV index intensity in December?

In Gunston Heights, the average daily maximum UV index in December 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Gunston Heights, Virginia, USA

Weather forecast for your location

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