December weather forecast
Powellville, MD

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Weather in December

December, the first month of the winter in Powellville, is still a chilly month, with an average temperature fluctuating between 48.2°F (9°C) and 36.5°F (2.5°C).

Temperature

With December's onset, the weather reveals a slight temperature decrease, transitioning from a mild 55.8°F (13.2°C) in November to a frosty 48.2°F (9°C). In Powellville, December is marked by an average low-temperature of 36.5°F (2.5°C).

Humidity

In December, the average relative humidity in Powellville, Maryland, is 78%.

Rainfall

In Powellville, during December, the rain falls for 10.6 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, in Powellville, there are 152.1 rainfall days, and 27.17" (690mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Powellville are January through March, November and December. In Powellville, in December, during 1.4 snowfall days, 0.59" (15mm) of snow is typically accumulated. In Powellville, during the entire year, snow falls for 8.2 days and aggregates up to 4.06" (103mm) 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 the month, sunrise is at 7:00 am and sunset at 4:41 pm. On the last day of December, in Powellville, Maryland, sunrise is at 7:18 am and sunset at 4:51 pm EST.

Sunshine

In Powellville, the average sunshine in December is 5.3h.

UV index

The months with the lowest UV index in Powellville, Maryland, are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 2 in December translates into this advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To protect against the Sun's most potent rays, avoid direct exposure around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. 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 are the temperatures in Powellville in December?

An average high-temperature, in December, in Powellville, is 48.2°F (9°C) and the average low-temperature is 36.5°F (2.5°C). In August, 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, is evaluated at 91.4°F (33°C).

What is the average humidity in December in Powellville?

The average relative humidity in December in Powellville is 78%.

How many days does it rain in December in Powellville?

In Powellville, Maryland, in December, during 10.6 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

How many days does it snow in December in Powellville?

In Powellville, in December, snow falls for 1.4 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days in Powellville?

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

What is the average length of the day in December in Powellville?

In Powellville, the average day length in December is 9h and 33min.

When is the sunrise / sunset in December in Powellville?

On the first day of December in Powellville, Maryland, sunrise is at 7:00 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:51 pm EST.

How long on average sun shines in December in Powellville?

In Powellville, the average sunshine duration in December is 5.3h.

What are the months with the lowest UV index in Powellville?

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

What is the UV index intensity in December in Powellville?

In Powellville, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes 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
Powellville, MD

Average temperature in December - Powellville, MD
  • Average high temperature in December: 48.2°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure in December
Powellville, MD

Average pressure in December - Powellville, MD
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Powellville, MD

Average wind speed in December - Powellville, MD
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in December
Powellville, MD

Average humidity in December - Powellville, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, February, March and April (75%).

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Average rainfall in December
Powellville, MD

Average rainfall in December - Powellville, MD
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in December
Powellville, MD

Average rainfall days in December - Powellville, MD
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in December
Powellville, MD

Average snowfall in December - Powellville, MD
  • Average snowfall in December: 0.59"

The month with the highest snowfall is January (1.57").
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
Powellville, MD

Average snowfall days in December - Powellville, MD
  • Average snowfall days in December: 1.4 days

The month with the highest number of snowfall days is January (2.6 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
Powellville, MD

Average daylight in December / Average sunshine in December - Powellville, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in December
Powellville, MD

Average sunshine days in December - Powellville, MD
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is August (11.3 days).

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Average UV index in December
Powellville, MD

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

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Average cloud cover in December
Powellville, MD

Average cloud cover in December - Powellville, 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).

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Average visibility in December
Powellville, MD

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

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