December weather forecast
North Brentwood, MD

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Weather in December

The first month of the winter, December, is also a frosty month in North Brentwood, Maryland, with an average temperature ranging between min 34.3°F and max 45.5°F.

Temperature

December's arrival subtly correlates with a reduction in the average high-temperature, down from a cool 54.1°F in November to a chilly 45.5°F. North Brentwood records a consistent low-temperature of 34.3°F during December nights.

Humidity

The months with the highest humidity in North Brentwood are May, October and December, with an average relative humidity of 76%.

Rainfall

In North Brentwood, Maryland, in December, during 9.8 rainfall days, 2.6" of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 31.14" of precipitation is accumulated.

Snowfall

Months with snowfall in North Brentwood, Maryland, are January through April and December. December is the first month it typically snows in North Brentwood. Throughout December, in the average 2.4 snowfall days, it receives 0.67" of snow. In North Brentwood, during the entire year, snow falls for 13.5 days and aggregates up to 7.2" of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of December, in North Brentwood, sunrise is at 7:26 am and sunset at 4:55 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 in December translates into these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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FAQ

What is the temperature in December in North Brentwood?

In North Brentwood, in December, the average high-temperature is 45.5°F, and the average low-temperature is 34.3°F. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 93.2°F.

What are the most humid months in North Brentwood?

May, October and December, with an average relative humidity of 76%, are most humid months in North Brentwood.

What is the average humidity in December in North Brentwood?

The average relative humidity in December in North Brentwood, Maryland, is 76%.

How many days does it rain in December in North Brentwood?

In December, in North Brentwood, Maryland, the rain falls for 9.8 days. Throughout December, 2.6" of precipitation is accumulated.

When does it start snowing in North Brentwood?

December is the first month it typically snows. Throughout December, in the average 2.4 snowfall days, it receives 0.67" of snow.

What is the month with the shortest days in North Brentwood?

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 North Brentwood?

In December, the average day length in North Brentwood is 9h and 29min.

What time are sunrise and sunset in December in North Brentwood?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of the month, in North Brentwood, sunrise is at 7:26 am and sunset at 4:55 pm EST.

How many hours of sunshine does North Brentwood have in December?

In December, the average sunshine duration in North Brentwood, Maryland, is 5.1h.

What are the months with the lowest UV index in North Brentwood?

January 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 North Brentwood?

In December, the average daily maximum UV index in North Brentwood is 2. A UV Index of 2, and less, symbolizes a low health threat 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
North Brentwood, MD

Average temperature in December - North Brentwood, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in December
North Brentwood, MD

Average pressure in December - North Brentwood, MD
  • 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 (29.94"Hg).

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Average wind speed in December
North Brentwood, MD

Average wind speed in December - North Brentwood, MD
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
North Brentwood, MD

Average humidity in December - North Brentwood, MD
  • Average humidity in December: 76%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall in December
North Brentwood, MD

Average rainfall in December - North Brentwood, MD
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in December
North Brentwood, MD

Average rainfall days in December - North Brentwood, MD
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

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Average snowfall in December
North Brentwood, MD

Average snowfall in December - North Brentwood, MD
  • Average snowfall in December: 0.67"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in December
North Brentwood, MD

Average snowfall days in December - North Brentwood, MD
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
North Brentwood, MD

Average daylight in December / Average sunshine in December - North Brentwood, MD
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 54min).
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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in December
North Brentwood, MD

Average sunshine days in December - North Brentwood, MD
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in December
North Brentwood, MD

Average UV index in December - North Brentwood, MD
  • 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 and December (UV index 2).

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Average cloud cover in December
North Brentwood, MD

Average cloud cover in December - North Brentwood, MD
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in December
North Brentwood, MD

Average visibility in December - North Brentwood, MD
  • 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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North Brentwood, Maryland, USA

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