December weather forecast
White Marsh, VA

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Weather in December

December, the first month of the winter in White Marsh, is still a cool month, with an average temperature ranging between max 50.2°F (10.1°C) and min 38.3°F (3.5°C).

Temperature

White Marsh's transition into December involves a gentle shift in temperature, receding from a refreshing 57.4°F (14.1°C) in November to a cool 50.2°F (10.1°C). White Marsh's December nights cool down to an average low-temperature of 38.3°F (3.5°C).

Humidity

With an average relative humidity of 78%, December is the most humid month in White Marsh.

Rainfall

In White Marsh, Virginia, during December, the rain falls for 12.2 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, in White Marsh, Virginia, there are 165.3 rainfall days, and 34.25" (870mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in White Marsh. In December, it is snowing for 1.1 days. Throughout December, 0.51" (13mm) of snow is accumulated. Throughout the year, in White Marsh, there are 8.3 snowfall days, and 4.13" (105mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year in White Marsh.
On the first day of December in White Marsh, sunrise is at 7:02 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:58 pm EST.

Sunshine

In December, the average sunshine is 5.4h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in White Marsh. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the usual temperature for White Marsh in December?

The average high-temperature, in December, in White Marsh, is 50.2°F (10.1°C), while the average low-temperature is 38.3°F (3.5°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 95°F (35°C).

What is the most humid month in White Marsh?

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

What is the average humidity in December in White Marsh?

In December, the average relative humidity in White Marsh, Virginia, is 78%.

How much does it rain in White Marsh in December?

In White Marsh, Virginia, during December, the rain falls for 12.2 days and regularly aggregates up to 2.6" (66mm) of precipitation.

How many days does it snow in December in White Marsh?

In White Marsh, in December, during 1.1 snowfall days, 0.51" (13mm) of snow is typically accumulated.

What is the month with the shortest days in White Marsh?

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

What is the average length of the day in December in White Marsh?

The average day length in December in White Marsh is 9h and 38min.

What time are sunrise and sunset in December in White Marsh?

On the first day of December, sunrise is at 7:02 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:58 pm EST.

How many hours of sunshine does White Marsh have in December?

In December, the average sunshine duration in White Marsh, Virginia, is 5.4h.

What is the month with the lowest UV index in White Marsh?

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

What is the UV index reading in December in White Marsh?

The average daily maximum UV index in December in White Marsh, Virginia, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
White Marsh, VA

Average temperature in December - White Marsh, 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
White Marsh, VA

Average pressure in December - White Marsh, 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
White Marsh, VA

Average wind speed in December - White Marsh, 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
White Marsh, VA

Average humidity in December - White Marsh, 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
White Marsh, VA

Average rainfall in December - White Marsh, 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
White Marsh, VA

Average rainfall days in December - White Marsh, 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
White Marsh, VA

Average snowfall in December - White Marsh, 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
White Marsh, VA

Average snowfall days in December - White Marsh, 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
White Marsh, VA

Average daylight in December / Average sunshine in December - White Marsh, 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
White Marsh, VA

Average sunshine days in December - White Marsh, 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
White Marsh, VA

Average UV index in December - White Marsh, 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
White Marsh, VA

Average cloud cover in December - White Marsh, 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
White Marsh, VA

Average visibility in December - White Marsh, 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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White Marsh, Virginia, USA

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