December weather forecast
Montgomery Village, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Montgomery Village, Maryland, with an average temperature varying between 44.2°F (6.8°C) and 32.2°F (0.1°C).

Temperature

December signals a slight drop in average high-temperature, sliding from November's fresh 53.1°F (11.7°C) to a chilly 44.2°F (6.8°C). Nighttime temperatures in December average to a cold 32.2°F (0.1°C).

Humidity

May, October and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

In Montgomery Village, Maryland, in December, it is raining for 10.5 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 154.8 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In Montgomery Village, during December, snow falls for 2.5 days and regularly aggregates up to 1.38" (35mm) of snow. In Montgomery Village, during the entire year, snow falls for 16.7 days and aggregates up to 9.76" (248mm) 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 December, sunrise is at 7:09 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:56 pm EST.

Sunshine

January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

Is December cold?

The high-temperature, in December, in Montgomery Village, records 44.2°F (6.8°C), while the low-temperature is 32.2°F (0.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is estimated at 93.2°F (34°C).

What are the most humid months?

The months with the highest humidity are May, October and December, with an average relative humidity of 77%.

What is the average humidity in December?

In December, the average relative humidity is 77%.

How many days does it rain in December?

In Montgomery Village, during December, the rain falls for 10.5 days and regularly aggregates up to 2.09" (53mm) of precipitation.

How many days does it snow in December?

In December, in Montgomery Village, it is snowing for 2.5 days. Throughout December, 1.38" (35mm) of snow is accumulated.

What is the month with the shortest days?

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 Montgomery Village, the average day length in December is 9h and 28min.

When is the sunrise / sunset in December in Montgomery Village?

On the first day of December, sunrise is at 7:09 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:56 pm EST.

What is the month with the least sunshine?

January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5.1h.

What is the month with the lowest UV index in Montgomery Village?

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

How high is the UV index in December?

In December, the average daily maximum UV index in Montgomery Village is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
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
Montgomery Village, MD

Average temperature in December - Montgomery Village, MD
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 32.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in December
Montgomery Village, MD

Average pressure in December - Montgomery Village, 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 (29.95"Hg).

Average wind speed in December
Montgomery Village, MD

Average wind speed in December - Montgomery Village, MD
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Montgomery Village, MD

Average humidity in December - Montgomery Village, MD
  • Average humidity in December: 77%

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

Average rainfall in December
Montgomery Village, MD

Average rainfall in December - Montgomery Village, MD
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in December
Montgomery Village, MD

Average rainfall days in December - Montgomery Village, MD
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in December
Montgomery Village, MD

Average snowfall in December - Montgomery Village, MD
  • Average snowfall in December: 1.38"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Montgomery Village, MD

Average snowfall days in December - Montgomery Village, MD
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Montgomery Village, MD

Average daylight in December / Average sunshine in December - Montgomery Village, 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 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

Average sunshine days in December
Montgomery Village, MD

Average sunshine days in December - Montgomery Village, MD
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in December
Montgomery Village, MD

Average UV index in December - Montgomery Village, 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).

Average cloud cover in December
Montgomery Village, MD

Average cloud cover in December - Montgomery Village, 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 30).

Average visibility in December
Montgomery Village, MD

Average visibility in December - Montgomery Village, MD
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Montgomery Village, Maryland, USA

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