December weather forecast
Pendennis Mount, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Pendennis Mount, Maryland, with an average temperature fluctuating between 46°F (7.8°C) and 36.5°F (2.5°C).

Temperature

December is marked by a subtle drop in average high-temperatures, transitioning from a fresh 54.5°F (12.5°C) in November to a chilly 46°F (7.8°C). In the month of December, the average temperature dips to a cold 36.5°F (2.5°C) during the night.

Humidity

In Pendennis Mount, the average relative humidity in December is 75%.

Rainfall

In Pendennis Mount, in December, it is raining for 7.4 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Pendennis Mount, in December, snow falls for 1.5 days, with typically accumulated 0.12" (3mm) of snow. In Pendennis Mount, 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, 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 4:53 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

What are December temperatures?

The average high-temperature and low-temperature during December are 46°F (7.8°C) and 36.5°F (2.5°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in December in Pendennis Mount?

In December, the average relative humidity is 75%.

How many days does it rain in December?

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

How much does it snow in December?

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

What is the month with the shortest days?

The month with the shortest days in Pendennis Mount is December, 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 in Pendennis Mount is 9h and 29min.

When is the sunrise / sunset in December?

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 4:53 pm EST.

How long on average sun shines in December?

In Pendennis Mount, Maryland, the average sunshine duration in December is 5.2h.

What are the months with the lowest UV index?

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

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 hazard to health from unsafe exposure to Sun's UV rays.
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
Pendennis Mount, MD

Average temperature in December - Pendennis Mount, 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).

Average pressure in December
Pendennis Mount, MD

Average pressure in December - Pendennis Mount, 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
Pendennis Mount, MD

Average wind speed in December - Pendennis Mount, 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).

Average humidity in December
Pendennis Mount, MD

Average humidity in December - Pendennis Mount, 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%).

Average rainfall in December
Pendennis Mount, MD

Average rainfall in December - Pendennis Mount, 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").

Average rainfall days in December
Pendennis Mount, MD

Average rainfall days in December - Pendennis Mount, 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).

Average snowfall in December
Pendennis Mount, MD

Average snowfall in December - Pendennis Mount, 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").

Average snowfall days in December
Pendennis Mount, MD

Average snowfall days in December - Pendennis Mount, 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).

Average daylight in December /
Average sunshine in December
Pendennis Mount, MD

Average daylight in December / Average sunshine in December - Pendennis Mount, 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).

Average sunshine days in December
Pendennis Mount, MD

Average sunshine days in December - Pendennis Mount, 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).

Average UV index in December
Pendennis Mount, MD

Average UV index in December - Pendennis Mount, 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).

Average cloud cover in December
Pendennis Mount, MD

Average cloud cover in December - Pendennis Mount, 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).

Average visibility in December
Pendennis Mount, MD

Average visibility in December - Pendennis Mount, 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).

Pendennis Mount, Maryland, USA

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