December weather forecast
Arbor Greene, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Arbor Greene, Maryland, with an average temperature varying between 46.4°F (8°C) and 36.5°F (2.5°C).

Temperature

As November shifts into December, a minor alteration in temperatures is observed, with average highs reducing from a fresh 54.7°F (12.6°C) to a chilly 46.4°F (8°C). Arbor Greene, during December, witnesses an average low-temperature of 36.5°F (2.5°C).

Humidity

In Arbor Greene, the average relative humidity in December is 75%.

Rainfall

In Arbor Greene, during December, the rain falls for 8.4 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 132.3 rainfall days, and 15.83" (402mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 1.6 days. Throughout December, 0.28" (7mm) of snow is accumulated. In Arbor Greene, Maryland, during the entire year, snow falls for 9.4 days and aggregates up to 1.97" (50mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:55 pm EST.

Sunshine

In Arbor Greene, the average sunshine in December is 5.2h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 2 in December translates into these instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

In Arbor Greene, in December, the average high-temperature is 46.4°F (8°C), and the average low-temperature is 36.5°F (2.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in December?

In Arbor Greene, the average relative humidity in December is 75%.

How much does it rain in December?

In December, the rain falls for 8.4 days. Throughout December, 0.91" (23mm) of precipitation is accumulated.

How many days does it snow in December in Arbor Greene?

In Arbor Greene, during December, snow falls for 1.6 days and regularly aggregates up to 0.28" (7mm) of snow.

What is the month with the shortest days in Arbor Greene?

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

What is the average length of the day in December?

The average day length in December is 9h and 31min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:55 pm EST.

How many hours of sunshine does Arbor Greene have in December?

In Arbor Greene, the average sunshine duration in December is 5.2h.

When is the lowest UV index in Arbor Greene?

January 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 December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents 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
Arbor Greene, MD

Average temperature in December - Arbor Greene, MD
  • Average high temperature in December: 46.4°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 (40.6°F).

  • Average low temperature in December: 36.5°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in December
Arbor Greene, MD

Average pressure in December - Arbor Greene, 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).

Average wind speed in December
Arbor Greene, MD

Average wind speed in December - Arbor Greene, MD
  • Average wind speed in December: 9.2mph

The windiest months (with the highest average wind speed) are January and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in December
Arbor Greene, MD

Average humidity in December - Arbor Greene, MD
  • Average humidity in December: 75%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (72%).

Average rainfall in December
Arbor Greene, MD

Average rainfall in December - Arbor Greene, MD
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in December
Arbor Greene, MD

Average rainfall days in December - Arbor Greene, MD
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (6.6 days).

Average snowfall in December
Arbor Greene, MD

Average snowfall in December - Arbor Greene, MD
  • Average snowfall in December: 0.28"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Arbor Greene, MD

Average snowfall days in December - Arbor Greene, MD
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Arbor Greene, MD

Average daylight in December / Average sunshine in December - Arbor Greene, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in December
Arbor Greene, MD

Average sunshine days in December - Arbor Greene, MD
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.7 days).

Average UV index in December
Arbor Greene, MD

Average UV index in December - Arbor Greene, 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).

Average cloud cover in December
Arbor Greene, MD

Average cloud cover in December - Arbor Greene, 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 27).

Average visibility in December
Arbor Greene, MD

Average visibility in December - Arbor Greene, 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).

Arbor Greene, Maryland, USA

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