December weather forecast
Harman Junction, VA

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Weather in December

December, the first month of the winter in Harman Junction, is also a frosty month, with an average temperature fluctuating between 32.4°F (0.2°C) and 45°F (7.2°C).

Temperature

Harman Junction's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's fresh 53.2°F (11.8°C) to a frosty 45°F (7.2°C). In December, Harman Junction experiences an average nighttime temperature of 32.4°F (0.2°C).

Humidity

The average relative humidity in December is 80%.

Rainfall

In Harman Junction, during December, the rain falls for 10.8 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, in Harman Junction, there are 169.1 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

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

Daylight

The month with the shortest days in Harman Junction is December, with an average of 9h and 36min 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 5:21 pm EST.

Sunshine

In December, the average sunshine in Harman Junction is 4.6h.

UV index

The months with the lowest UV index in Harman Junction are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the temperature in December in Harman Junction?

The average high-temperature, in December, in Harman Junction, is 45°F (7.2°C), while the average low-temperature is 32.4°F (0.2°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in August is estimated at 89.6°F (32°C).

What is the average humidity in December in Harman Junction?

In December, the average relative humidity is 80%.

How many days does it rain in December in Harman Junction?

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

How many days does it snow in December in Harman Junction?

In Harman Junction, Virginia, during December, snow falls for 6.7 days and regularly aggregates up to 4.61" (117mm) of snow.

What is the month with the shortest days in Harman Junction?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Harman Junction, Virginia.

What is the average length of the day in December in Harman Junction?

In December, the average day length in Harman Junction is 9h and 38min.

When is the sunrise / sunset in December in Harman Junction?

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 5:21 pm EST.

How many hours of sunshine does Harman Junction have in December?

In December, the average sunshine duration in Harman Junction, Virginia, is 4.6h.

What is the month with the lowest UV index in Harman Junction?

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

What is the UV index intensity in December in Harman Junction?

In December, the average daily maximum UV index in Harman Junction, Virginia, is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
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
Harman Junction, VA

Average temperature in December - Harman Junction, 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).

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Average pressure in December
Harman Junction, VA

Average pressure in December - Harman Junction, 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).

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Average wind speed in December
Harman Junction, VA

Average wind speed in December - Harman Junction, 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).

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Average humidity in December
Harman Junction, VA

Average humidity in December - Harman Junction, 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%).

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Average rainfall in December
Harman Junction, VA

Average rainfall in December - Harman Junction, 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").

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Average rainfall days in December
Harman Junction, VA

Average rainfall days in December - Harman Junction, 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).

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Average snowfall in December
Harman Junction, VA

Average snowfall in December - Harman Junction, 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").

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Average snowfall days in December
Harman Junction, VA

Average snowfall days in December - Harman Junction, 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).

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Average daylight in December /
Average sunshine in December
Harman Junction, VA

Average daylight in December / Average sunshine in December - Harman Junction, 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 36min).

  • 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).

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Average sunshine days in December
Harman Junction, VA

Average sunshine days in December - Harman Junction, 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).

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Average UV index in December
Harman Junction, VA

Average UV index in December - Harman Junction, 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).

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Average cloud cover in December
Harman Junction, VA

Average cloud cover in December - Harman Junction, 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).

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Average visibility in December
Harman Junction, VA

Average visibility in December - Harman Junction, 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).

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Harman Junction, Virginia, USA

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