December weather forecastWhite Marsh, VA

December

Weather in December

December, the first month of the winter in White Marsh, is also a fresh month, with an average temperature varying between 50.2°F (10.1°C) and 38.3°F (3.5°C).

Temperature

In December, the average high-temperature marginally drops from a refreshing 57.4°F (14.1°C) in November to a fresh 50.2°F (10.1°C). In the month of December, White Marsh witnesses a consistent average low-temperature of 38.3°F (3.5°C).

Humidity

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

Rainfall

In December, the rain falls for 12.2 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 165.3 rainfall days, and 34.25" (870mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In White Marsh, during December, snow falls for 1.1 days and regularly aggregates up to 0.51" (13mm) of snow. Throughout the year, 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.
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

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 of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

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

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

In December, the average relative humidity is 78%.

In White Marsh, in December, during 12.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

In December, it is snowing for 1.1 days. Throughout December, 0.51" (13mm) of snow is accumulated.

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

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

In December, on the first day of the month, 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.

In December, the average sunshine duration is 5.4h.

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

In December, the average daily maximum UV index in White Marsh is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

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).

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).

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%).

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").

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).

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").

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).

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

  • Average daylight in December: 9h and 36min

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 24min

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).

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).

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).

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).

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).