December weather forecast
Laytonsville, MD

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Weather in December

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

Temperature

The average high-temperature shows a slight dip in December, from November's fresh 53.1°F (11.7°C) to a chilly 44.2°F (6.8°C). The average nighttime temperature in Laytonsville lowers to a cold 32.2°F (0.1°C) throughout December.

Humidity

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

Rainfall

In Laytonsville, in December, during 10.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Laytonsville, Maryland, during the entire year, the rain falls for 154.8 days and collects up to 29.09" (739mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In December, in Laytonsville, it is snowing for 2.5 days. Throughout December, 1.38" (35mm) of snow is accumulated. Throughout the year, in Laytonsville, there are 16.7 snowfall days, and 9.76" (248mm) of snow is accumulated.

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 7:09 am and sunset at 4:46 pm. On the last day of December, in Laytonsville, sunrise is at 7:27 am and sunset at 4:55 pm EST.

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Laytonsville. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. When the Sun is at its strongest around midday, find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

How cold is December in Laytonsville?

In December, in Laytonsville, the average high-temperature is 44.2°F (6.8°C), and the average low-temperature is 32.2°F (0.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is computed to be 93.2°F (34°C).

What are the most humid months in Laytonsville?

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

What is the average humidity in December in Laytonsville?

In Laytonsville, Maryland, the average relative humidity in December is 77%.

How many days does it rain in December in Laytonsville?

In Laytonsville, Maryland, in December, it is raining for 10.5 days, with typically 2.09" (53mm) of accumulated precipitation.

How much does it snow in Laytonsville in December?

In Laytonsville, in December, during 2.5 snowfall days, 1.38" (35mm) of snow is typically accumulated.

What is the month with the shortest days in Laytonsville?

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

How many hours of daylight does Laytonsville have in December?

In Laytonsville, the average day length in December is 9h and 28min.

What time are sunrise and sunset in December in Laytonsville?

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 7:27 am and sunset at 4:55 pm EST.

What is the month with the least sunshine in Laytonsville?

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

How long on average sun shines in December in Laytonsville?

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

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

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

How high is the UV index in December in Laytonsville?

The average daily maximum UV index in December in Laytonsville is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Laytonsville, MD

Average temperature in December - Laytonsville, 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).

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Average pressure in December
Laytonsville, MD

Average pressure in December - Laytonsville, 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).

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Average wind speed in December
Laytonsville, MD

Average wind speed in December - Laytonsville, 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).

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Average humidity in December
Laytonsville, MD

Average humidity in December - Laytonsville, 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%).

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Average rainfall in December
Laytonsville, MD

Average rainfall in December - Laytonsville, 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").

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Average rainfall days in December
Laytonsville, MD

Average rainfall days in December - Laytonsville, 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).

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Average snowfall in December
Laytonsville, MD

Average snowfall in December - Laytonsville, 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").

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Average snowfall days in December
Laytonsville, MD

Average snowfall days in December - Laytonsville, 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).

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

Average daylight in December / Average sunshine in December - Laytonsville, 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).

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Average sunshine days in December
Laytonsville, MD

Average sunshine days in December - Laytonsville, 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).

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Average UV index in December
Laytonsville, MD

Average UV index in December - Laytonsville, 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
Laytonsville, MD

Average cloud cover in December - Laytonsville, 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).

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Average visibility in December
Laytonsville, MD

Average visibility in December - Laytonsville, 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).

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Laytonsville, Maryland, USA

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