December weather forecast
Port Deposit, MD

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Weather in December

December, the first month of the winter in Port Deposit, is still a chilly month, with an average temperature fluctuating between 44.1°F (6.7°C) and 32.9°F (0.5°C).

Temperature

A moderate decline in average high-temperatures is noted in December, moving from a cool 52.9°F (11.6°C) in November to a chilly 44.1°F (6.7°C). December in Port Deposit witnesses an average low-temperature hovering around an icy 32.9°F (0.5°C).

Humidity

In Port Deposit, the average relative humidity in December is 78%.

Rainfall

In Port Deposit, during December, the rain falls for 9.4 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 149.9 rainfall days, and 29.41" (747mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Port Deposit are January through April, November and December. In Port Deposit, Maryland, in December, snow falls for 2.2 days, with typically accumulated 0.87" (22mm) of snow. Throughout the year, there are 13.7 snowfall days, and 7.05" (179mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Port Deposit, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:50 pm EST.

Sunshine

In Port Deposit, Maryland, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

Is it cold in Port Deposit during December?

In Port Deposit, 44.1°F (6.7°C) is the average high-temperature and 32.9°F (0.5°C) is the average low-temperature during December. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 89.6°F (32°C).

What is the average humidity in December in Port Deposit?

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

How many days does it rain in December in Port Deposit?

In Port Deposit, Maryland, in December, it is raining for 9.4 days, with typically 2.4" (61mm) of accumulated precipitation.

How much does it snow in Port Deposit in December?

In Port Deposit, in December, during 2.2 snowfall days, 0.87" (22mm) of snow is typically accumulated.

What is the month with the shortest days in Port Deposit?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Port Deposit have in December?

In Port Deposit, the average day length in December is 9h and 26min.

When are sunrise and sunset in December in Port Deposit?

On the first day of December in Port Deposit, Maryland, sunrise is at 7:06 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:50 pm EST.

How long on average sun shines in December in Port Deposit?

The average sunshine duration in December is 5.1h.

What are the months with the lowest UV index in Port Deposit?

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

How high is the UV index in December in Port Deposit?

In Port Deposit, Maryland, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
Port Deposit, MD

Average temperature in December - Port Deposit, MD
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in December
Port Deposit, MD

Average pressure in December - Port Deposit, MD
  • Average pressure in December: 30.1"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
Port Deposit, MD

Average wind speed in December - Port Deposit, MD
  • Average wind speed in December: 8.1mph

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Port Deposit, MD

Average humidity in December - Port Deposit, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in December
Port Deposit, MD

Average rainfall in December - Port Deposit, MD
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in December
Port Deposit, MD

Average rainfall days in December - Port Deposit, MD
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in December
Port Deposit, MD

Average snowfall in December - Port Deposit, MD
  • Average snowfall in December: 0.87"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Port Deposit, MD

Average snowfall days in December - Port Deposit, MD
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is January (4.6 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
Port Deposit, MD

Average daylight in December / Average sunshine in December - Port Deposit, MD
  • Average daylight in December: 9h and 2min

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 24min).

  • 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).

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Average sunshine days in December
Port Deposit, MD

Average sunshine days in December - Port Deposit, MD
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in December
Port Deposit, MD

Average UV index in December - Port Deposit, 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).

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Average cloud cover in December
Port Deposit, MD

Average cloud cover in December - Port Deposit, MD
  • Average cloud cover in December: 45

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in December
Port Deposit, MD

Average visibility in December - Port Deposit, 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).

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Port Deposit, Maryland, USA

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