December weather forecast
Aspen Hill, MD

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Weather in December

December, the first month of the winter in Aspen Hill, is still a chilly month, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 45.3°F (7.4°C).

Temperature

The arrival of December signals a subtle shift in temperature, down from a fresh 53.4°F (11.9°C) in November to a chilly 45.3°F (7.4°C). Aspen Hill registers a consistent average low-temperature of 32.9°F (0.5°C) during December.

Humidity

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

Rainfall

In Aspen Hill, in December, during 10.2 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, there are 160.9 rainfall days, and 32.99" (838mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Aspen Hill, in December, during 2.9 snowfall days, 1.38" (35mm) of snow is typically accumulated. In Aspen Hill, during the entire year, snow falls for 17.1 days and aggregates up to 10.2" (259mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Aspen Hill.
On the first day of December, sunrise is at 7:08 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.

Sunshine

In Aspen Hill, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 2 during December leads to these advisories:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the average December temperature in Aspen Hill?

December temperatures vary between a high-temperature of 45.3°F (7.4°C) and a low-temperature of 32.9°F (0.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 93.2°F (34°C).

What is the most humid month in Aspen Hill?

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

What is the average humidity in December in Aspen Hill?

In December, the average relative humidity in Aspen Hill, Maryland, is 76%.

How many days does it rain in December in Aspen Hill?

In Aspen Hill, in December, during 10.2 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

How much does it snow in Aspen Hill in December?

In Aspen Hill, in December, during 2.9 snowfall days, 1.38" (35mm) of snow is typically accumulated.

What is the month with the shortest days in Aspen Hill?

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

How many hours of daylight does Aspen Hill have in December?

In December, the average day length in Aspen Hill is 9h and 29min.

When is the sunrise / sunset in December in Aspen Hill?

In December, on the first day of the month, sunrise is at 7:08 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.

How long on average sun shines in December in Aspen Hill?

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

What is the month with the lowest UV index in Aspen Hill?

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

What is the UV index reading in December in Aspen Hill?

The average daily maximum UV index in December in Aspen Hill, Maryland, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Aspen Hill, MD

Average temperature in December - Aspen Hill, MD
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in December
Aspen Hill, MD

Average pressure in December - Aspen Hill, 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
Aspen Hill, MD

Average wind speed in December - Aspen Hill, MD
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in December
Aspen Hill, MD

Average humidity in December - Aspen Hill, MD
  • Average humidity in December: 76%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in December
Aspen Hill, MD

Average rainfall in December - Aspen Hill, MD
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

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Average rainfall days in December
Aspen Hill, MD

Average rainfall days in December - Aspen Hill, MD
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in December
Aspen Hill, MD

Average snowfall in December - Aspen Hill, MD
  • Average snowfall in December: 1.38"

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Aspen Hill, MD

Average snowfall days in December - Aspen Hill, MD
  • Average snowfall days in December: 2.9 days

The months with the highest number of snowfall days are January and February (5.1 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
Aspen Hill, MD

Average daylight in December / Average sunshine in December - Aspen Hill, 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 month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in December
Aspen Hill, MD

Average sunshine days in December - Aspen Hill, MD
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

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Average UV index in December
Aspen Hill, MD

Average UV index in December - Aspen Hill, 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).

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Average cloud cover in December
Aspen Hill, MD

Average cloud cover in December - Aspen Hill, MD
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in December
Aspen Hill, MD

Average visibility in December - Aspen Hill, 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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Aspen Hill, Maryland, USA

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