December weather forecast
The Plantations, MD

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Weather in December

The first month of the winter, December, is still a chilly month in The Plantations, Maryland, with an average temperature fluctuating between 43.5°F (6.4°C) and 31.1°F (-0.5°C).

Temperature

The beginning of December brings a slight decrease in the average high-temperature, transitioning from a fresh 52.3°F (11.3°C) in November to a frosty 43.5°F (6.4°C). The nighttime temperature dips to a subzero cold 31.1°F (-0.5°C) on average during December.

Humidity

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

Rainfall

In The Plantations, in December, it is raining for 10.4 days, with typically 2.24" (57mm) of accumulated precipitation. In The Plantations, during the entire year, the rain falls for 158.7 days and collects up to 30.91" (785mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In The Plantations, in December, during 3.5 snowfall days, 2.01" (51mm) of snow is typically accumulated. Throughout the year, in The Plantations, there are 21.3 snowfall days, and 13.31" (338mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
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, sunrise is at 7:28 am and sunset at 4:55 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

How cold is it in December?

In The Plantations, in December, the average high-temperature is 43.5°F (6.4°C), and the average low-temperature is 31.1°F (-0.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 89.6°F (32°C).

What is the average humidity in December?

In The Plantations, the average relative humidity in December is 78%.

How much does it rain in The Plantations in December?

In The Plantations, in December, it is raining for 10.4 days, with typically 2.24" (57mm) of accumulated precipitation.

How much does it snow in December?

In The Plantations, in December, snow falls for 3.5 days, with typically accumulated 2.01" (51mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does The Plantations have in December?

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

When is the sunrise / sunset in December?

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 4:55 pm EST.

How long on average sun shines in December in The Plantations?

In The Plantations, the average sunshine duration in December is 5.1h.

When is the lowest UV index in The Plantations?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes 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
The Plantations, MD

Average temperature in December - The Plantations, MD
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in December
The Plantations, MD

Average pressure in December - The Plantations, 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
The Plantations, MD

Average wind speed in December - The Plantations, MD
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
The Plantations, MD

Average humidity in December - The Plantations, MD
  • Average humidity in December: 78%

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in December
The Plantations, MD

Average rainfall in December - The Plantations, MD
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in December
The Plantations, MD

Average rainfall days in December - The Plantations, MD
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
The Plantations, MD

Average snowfall in December - The Plantations, MD
  • Average snowfall in December: 2.01"

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
The Plantations, MD

Average snowfall days in December - The Plantations, MD
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
The Plantations, MD

Average daylight in December / Average sunshine in December - The Plantations, 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: 4h and 54min).

Average sunshine days in December
The Plantations, MD

Average sunshine days in December - The Plantations, MD
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
The Plantations, MD

Average UV index in December - The Plantations, 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
The Plantations, MD

Average cloud cover in December - The Plantations, 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 30).

Average visibility in December
The Plantations, MD

Average visibility in December - The Plantations, 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).

The Plantations, Maryland, USA

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