December weather forecast
Brooklyn, MD

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Weather in December

December, the first month of the winter in Brooklyn, is also a frosty month, with an average temperature varying between 44.8°F (7.1°C) and 33.4°F (0.8°C).

Temperature

The arrival of December suggests a slight decrease in the average high-temperature, moving from a fresh 53.2°F (11.8°C) in November to a chilly 44.8°F (7.1°C). Brooklyn, during the month of December, experiences an average low-temperature of 33.4°F (0.8°C).

Humidity

In December, the average relative humidity in Brooklyn is 75%.

Rainfall

In December, in Brooklyn, the rain falls for 10.1 days. Throughout December, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 158.5 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Brooklyn, during December, snow falls for 2.2 days and regularly aggregates up to 0.63" (16mm) of snow. In Brooklyn, during the entire year, snow falls for 12.8 days and aggregates up to 6.06" (154mm) of snow.

Daylight

The month with the shortest days in Brooklyn, Maryland, is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:53 pm EST.

Sunshine

In December, the average sunshine in Brooklyn is 5.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Brooklyn. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests these recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the average December temperature in Brooklyn?

In Brooklyn, 44.8°F (7.1°C) is the average high-temperature and 33.4°F (0.8°C) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 89.6°F (32°C).

What is the average humidity in December in Brooklyn?

In December, the average relative humidity in Brooklyn is 75%.

How many days does it rain in December in Brooklyn?

In Brooklyn, in December, during 10.1 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

How many days does it snow in December in Brooklyn?

In Brooklyn, Maryland, during December, snow falls for 2.2 days and regularly aggregates up to 0.63" (16mm) of snow.

What is the month with the shortest days in Brooklyn?

December has the shortest days of the year in Brooklyn, with an average of 9h and 30min of daylight.

How many hours of daylight does Brooklyn have in December?

The average day length in December in Brooklyn is 9h and 28min.

When is the sunrise / sunset in December in Brooklyn?

On the first day of December in Brooklyn, Maryland, sunrise is at 7:07 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:53 pm EST.

How long on average sun shines in December in Brooklyn?

In December, the average sunshine duration is 5.2h.

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

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

What is the UV index reading in December in Brooklyn?

In Brooklyn, Maryland, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe 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
Brooklyn, MD

Average temperature in December - Brooklyn, MD
  • Average high temperature in December: 44.8°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in December: 33.4°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

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Average pressure in December
Brooklyn, MD

Average pressure in December - Brooklyn, 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
Brooklyn, MD

Average wind speed in December - Brooklyn, MD
  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in December
Brooklyn, MD

Average humidity in December - Brooklyn, MD
  • Average humidity in December: 75%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April, July and November (72%).

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Average rainfall in December
Brooklyn, MD

Average rainfall in December - Brooklyn, MD
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in December
Brooklyn, MD

Average rainfall days in December - Brooklyn, MD
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in December
Brooklyn, MD

Average snowfall in December - Brooklyn, MD
  • Average snowfall in December: 0.63"

The month with the highest snowfall is January (2.09").
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
Brooklyn, MD

Average snowfall days in December - Brooklyn, MD
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is January (4.2 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
Brooklyn, MD

Average daylight in December / Average sunshine in December - Brooklyn, 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
Brooklyn, MD

Average sunshine days in December - Brooklyn, MD
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in December
Brooklyn, MD

Average UV index in December - Brooklyn, 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, February, November and December (UV index 2).

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Average cloud cover in December
Brooklyn, MD

Average cloud cover in December - Brooklyn, MD
  • Average cloud cover in December: 44

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
Brooklyn, MD

Average visibility in December - Brooklyn, 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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Brooklyn, Maryland, USA

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