December weather forecast
Threemile Oak Corner, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Threemile Oak Corner, Maryland, with an average temperature varying between 36.5°F (2.5°C) and 46°F (7.8°C).

Temperature

December sees a slight reduction in average high-temperature, with a shift from a fresh 54.5°F (12.5°C) in November to a frosty 46°F (7.8°C). The average temperature in Threemile Oak Corner drops to a cold 36.5°F (2.5°C) during the night in the month of December.

Humidity

In Threemile Oak Corner, the average relative humidity in December is 75%.

Rainfall

In Threemile Oak Corner, during December, the rain falls for 7.4 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Threemile Oak Corner, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.

Snowfall

Months with snowfall in Threemile Oak Corner are January through March, November and December. In Threemile Oak Corner, Maryland, in December, snow falls for 1.5 days, with typically accumulated 0.12" (3mm) of snow. In Threemile Oak Corner, during the entire year, snow falls for 8.3 days and aggregates up to 1.22" (31mm) of snow.

Daylight

December has the shortest days of the year in Threemile Oak Corner, Maryland, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:54 pm EST.

Sunshine

In December, the average sunshine in Threemile Oak Corner is 5.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Threemile Oak Corner, Maryland. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What are December temperatures in Threemile Oak Corner?

The average high-temperature, in December, in Threemile Oak Corner, is 46°F (7.8°C), while the average low-temperature is 36.5°F (2.5°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 89.6°F (32°C).

What is the average humidity in December in Threemile Oak Corner?

In Threemile Oak Corner, Maryland, the average relative humidity in December is 75%.

How many days does it rain in December in Threemile Oak Corner?

In Threemile Oak Corner, Maryland, during December, the rain falls for 7.4 days and regularly aggregates up to 0.67" (17mm) of precipitation.

How many days does it snow in December in Threemile Oak Corner?

In Threemile Oak Corner, in December, snow falls for 1.5 days, with typically accumulated 0.12" (3mm) of snow.

What is the month with the shortest days in Threemile Oak Corner?

The month with the shortest days in Threemile Oak Corner, Maryland, is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Threemile Oak Corner have in December?

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

What time are sunrise and sunset in December in Threemile Oak Corner?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:54 pm EST.

How many hours of sunshine does Threemile Oak Corner have in December?

In Threemile Oak Corner, Maryland, the average sunshine duration in December is 5.2h.

What is the month with the lowest UV index in Threemile Oak Corner?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Threemile Oak Corner, Maryland.

What is the UV index reading in December in Threemile Oak Corner?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to 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
Threemile Oak Corner, MD

Average temperature in December - Threemile Oak Corner, MD
  • Average high temperature in December: 46°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in December
Threemile Oak Corner, MD

Average pressure in December - Threemile Oak Corner, MD
  • Average pressure in December: 30.11"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).

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Average wind speed in December
Threemile Oak Corner, MD

Average wind speed in December - Threemile Oak Corner, MD
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in December
Threemile Oak Corner, MD

Average humidity in December - Threemile Oak Corner, MD
  • Average humidity in December: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall in December
Threemile Oak Corner, MD

Average rainfall in December - Threemile Oak Corner, MD
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in December
Threemile Oak Corner, MD

Average rainfall days in December - Threemile Oak Corner, MD
  • Average rainfall days in December: 7.4 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall in December
Threemile Oak Corner, MD

Average snowfall in December - Threemile Oak Corner, MD
  • Average snowfall in December: 0.12"

The month with the highest snowfall is January (0.67").
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
Threemile Oak Corner, MD

Average snowfall days in December - Threemile Oak Corner, MD
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (2.5 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
Threemile Oak Corner, MD

Average daylight in December / Average sunshine in December - Threemile Oak Corner, 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
Threemile Oak Corner, MD

Average sunshine days in December - Threemile Oak Corner, MD
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

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Average UV index in December
Threemile Oak Corner, MD

Average UV index in December - Threemile Oak Corner, 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 and December (UV index 2).

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Average cloud cover in December
Threemile Oak Corner, MD

Average cloud cover in December - Threemile Oak Corner, MD
  • Average cloud cover in December: 44

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in December
Threemile Oak Corner, MD

Average visibility in December - Threemile Oak Corner, 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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Threemile Oak Corner, Maryland, USA

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