December weather forecast
Maryland, NY

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Weather in December

December, the first month of the winter in Maryland, is also an icy month, with an average temperature fluctuating between 22.5°F (-5.3°C) and 32.9°F (0.5°C).

Temperature

The onset of December results in a decrease in the average high-temperature, receding from a wintry 42.4°F (5.8°C) in November to a still icy 32.9°F (0.5°C). During the nights in December, Maryland experiences a consistent average temperature of 22.5°F (-5.3°C).

Humidity

January, February and December, with an average relative humidity of 87%, are the most humid months in Maryland.

Rainfall

In Maryland, in December, it is raining for 10.3 days, with typically 2.4" (61mm) of accumulated precipitation. In Maryland, New York, during the entire year, the rain falls for 161.1 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

Months with snowfall in Maryland are January through May, October through December. In December, in Maryland, New York, it is snowing for 16.7 days. Throughout December, 8.35" (212mm) of snow is accumulated. Throughout the year, there are 92.9 snowfall days, and 48.23" (1225mm) of snow is accumulated.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:10 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:36 pm EST.

Sunshine

The average sunshine in December in Maryland, New York, is 2.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. It's recommended to limit sun exposure when its radiation is at its peak during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

How cold is December in Maryland?

An average high-temperature, in December, in Maryland, is 32.9°F (0.5°C) and the average low-temperature is 22.5°F (-5.3°C).

What is the most humid month in Maryland?

The months with the highest humidity are January, February and December, with an average relative humidity of 87%.

What is the average humidity in December in Maryland?

The average relative humidity in December in Maryland, New York, is 87%.

How many days does it rain in December in Maryland?

In Maryland, in December, it is raining for 10.3 days, with typically 2.4" (61mm) of accumulated precipitation.

How much does it snow in Maryland in December?

In Maryland, in December, snow falls for 16.7 days, with typically accumulated 8.35" (212mm) of snow.

What is the month with the shortest days in Maryland?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Maryland.

What is the average length of the day in December in Maryland?

In Maryland, New York, the average day length in December is 9h and 7min.

When are sunrise and sunset in December in Maryland?

On the first day of December in Maryland, New York, sunrise is at 7:10 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:36 pm EST.

How many hours of sunshine does Maryland have in December?

In Maryland, New York, the average sunshine duration in December is 2.8h.

What are the months with the lowest UV index in Maryland?

The months with the lowest UV index in Maryland are January through March, November and December, with an average maximum UV index of 1.

What is the UV index reading in December in Maryland?

In Maryland, the average daily maximum UV index in December is 1. A UV Index 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
Maryland, NY

Average temperature in December - Maryland, NY
  • Average high temperature in December: 32.9°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 22.5°F

The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in December
Maryland, NY

Average pressure in December - Maryland, NY
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Maryland, NY

Average wind speed in December - Maryland, NY
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in December
Maryland, NY

Average humidity in December - Maryland, NY
  • Average humidity in December: 87%

The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are April and May (79%).

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Average rainfall in December
Maryland, NY

Average rainfall in December - Maryland, NY
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in December
Maryland, NY

Average rainfall days in December - Maryland, NY
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.6 days).

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Average snowfall in December
Maryland, NY

Average snowfall in December - Maryland, NY
  • Average snowfall in December: 8.35"

The month with the highest snowfall is February (9.13").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Maryland, NY

Average snowfall days in December - Maryland, NY
  • Average snowfall days in December: 16.7 days

The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Maryland, NY

Average daylight in December / Average sunshine in December - Maryland, NY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).

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Average sunshine days in December
Maryland, NY

Average sunshine days in December - Maryland, NY
  • Average sunshine days in December: 7.9 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).

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Average UV index in December
Maryland, NY

Average UV index in December - Maryland, NY
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

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Average cloud cover in December
Maryland, NY

Average cloud cover in December - Maryland, NY
  • Average cloud cover in December: 73

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 41).

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Average visibility in December
Maryland, NY

Average visibility in December - Maryland, NY
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Maryland, New York, USA

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