December weather forecast
Susan, VA

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Weather in December

The first month of the winter, December, is still a cool month in Susan, Virginia, with an average temperature varying between 38.3°F (3.5°C) and 50.2°F (10.1°C).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from a moderate 57.4°F (14.1°C) in November to a cool 50.2°F (10.1°C). An average nighttime temperature of 38.3°F (3.5°C) is noted in Susan during the month of December.

Humidity

December is the most humid month, with an average relative humidity of 78%.

Rainfall

In Susan, in December, it is raining for 12.2 days, with typically 2.6" (66mm) of accumulated precipitation. In Susan, during the entire year, the rain falls for 165.3 days and collects up to 34.25" (870mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Susan, in December, snow falls for 1.1 days, with typically accumulated 0.51" (13mm) of snow. In Susan, Virginia, during the entire year, snow falls for 8.3 days and aggregates up to 4.13" (105mm) of snow.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of December in Susan, sunrise is at 7:01 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:57 pm EST.

Sunshine

In Susan, the average sunshine in December is 5.4h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the temperature in December in Susan?

In Susan, 50.2°F (10.1°C) is the average high-temperature and 38.3°F (3.5°C) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 95°F (35°C).

What is the most humid month in Susan?

December is the most humid month in Susan, Virginia, with an average relative humidity of 78%.

What is the average humidity in December in Susan?

The average relative humidity in December in Susan is 78%.

How much does it rain in Susan in December?

In Susan, in December, it is raining for 12.2 days, with typically 2.6" (66mm) of accumulated precipitation.

How much does it snow in Susan in December?

In Susan, Virginia, during December, snow falls for 1.1 days and regularly aggregates up to 0.51" (13mm) of snow.

What is the month with the shortest days in Susan?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

What is the average length of the day in December in Susan?

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

When are sunrise and sunset in December in Susan?

On the first day of December in Susan, sunrise is at 7:01 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:57 pm EST.

How many hours of sunshine does Susan have in December?

The average sunshine duration in December in Susan, Virginia, is 5.4h.

What is the month with the lowest UV index in Susan?

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

What is the UV index intensity in December in Susan?

The average daily maximum UV index in December in Susan, Virginia, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Susan, VA

Average temperature in December - Susan, VA
  • Average high temperature in December: 50.2°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in December
Susan, VA

Average pressure in December - Susan, VA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Susan, VA

Average wind speed in December - Susan, VA
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

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Average humidity in December
Susan, VA

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

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in December
Susan, VA

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

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days in December
Susan, VA

Average rainfall days in December - Susan, VA
  • Average rainfall days in December: 12.2 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).

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Average snowfall in December
Susan, VA

Average snowfall in December - Susan, VA
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Susan, VA

Average snowfall days in December - Susan, VA
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Susan, 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: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in December
Susan, VA

Average sunshine days in December - Susan, VA
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in December
Susan, VA

Average UV index in December - Susan, VA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Susan, VA

Average cloud cover in December - Susan, VA
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in December
Susan, VA

Average visibility in December - Susan, VA
  • Average visibility in December: 6mi

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

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Susan, Virginia, USA

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