December weather forecast
Brookview, MD

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Weather in December

December, the first month of the winter in Brookview, is still a chilly month, with an average temperature fluctuating between 36.1°F (2.3°C) and 47.1°F (8.4°C).

Temperature

In Brookview, the average high-temperature in December gently drops from a cool 55°F (12.8°C) in November to a frosty 47.1°F (8.4°C). Nighttime temperature dips to a mean of 36.1°F (2.3°C) during December.

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Brookview, in December, it is raining for 9 days, with typically 1.1" (28mm) of accumulated precipitation. In Brookview, during the entire year, the rain falls for 135.7 days and collects up to 16.34" (415mm) of precipitation.

Snowfall

Months with snowfall are January through March, May, November and December. In Brookview, in December, snow falls for 2 days, with typically accumulated 0.71" (18mm) of snow. In Brookview, during the entire year, snow falls for 9.5 days and aggregates up to 3.35" (85mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:02 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:52 pm EST.

Sunshine

The average sunshine in December is 5.3h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

What is the average December temperature?

The high-temperature during December is 47.1°F (8.4°C) and the low-temperature is 36.1°F (2.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is calculated to be 91.4°F (33°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In Brookview, in December, during 9 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

How much does it snow in December?

In Brookview, during December, snow falls for 2 days and regularly aggregates up to 0.71" (18mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Brookview have in December?

In Brookview, the average day length in December is 9h and 32min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:02 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:52 pm EST.

How many hours of sunshine does Brookview have in December?

The average sunshine duration in December is 5.3h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Brookview, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Brookview, MD

Average temperature in December - Brookview, MD
  • Average high temperature in December: 47.1°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in December
Brookview, MD

Average pressure in December - Brookview, MD
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Brookview, MD

Average wind speed in December - Brookview, MD
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Brookview, MD

Average humidity in December - Brookview, MD
  • Average humidity in December: 77%

The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March and November (74%).

Average rainfall in December
Brookview, MD

Average rainfall in December - Brookview, MD
  • Average rainfall in December: 1.1"

The wettest months (with the highest rainfall) are July and August (2.01").
The driest months (with the least rainfall) are January and September (0.94").

Average rainfall days in December
Brookview, MD

Average rainfall days in December - Brookview, MD
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is November (7.2 days).

Average snowfall in December
Brookview, MD

Average snowfall in December - Brookview, MD
  • Average snowfall in December: 0.71"

The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in December
Brookview, MD

Average snowfall days in December - Brookview, MD
  • Average snowfall days in December: 2 days

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

Average daylight in December /
Average sunshine in December
Brookview, MD

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 2min

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 12min).

Average sunshine days in December
Brookview, MD

Average sunshine days in December - Brookview, MD
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in December
Brookview, MD

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

Average cloud cover in December
Brookview, MD

Average cloud cover in December - Brookview, MD
  • Average cloud cover in December: 43

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
Brookview, MD

Average visibility in December - Brookview, 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).

Brookview, Maryland, USA

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