December weather forecast
Patuxent Riding, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Patuxent Riding, Maryland, with temperature in the range of an average low of 34.5°F (1.4°C) and an average high of 45.5°F (7.5°C).

Temperature

December brings a slight decrease in the average high-temperature, shifting from a cool 54°F (12.2°C) in November to a chilly 45.5°F (7.5°C). Throughout December, Patuxent Riding anticipates an average low-temperature of 34.5°F (1.4°C).

Humidity

In Patuxent Riding, Maryland, the average relative humidity in December is 76%.

Rainfall

In Patuxent Riding, Maryland, during December, the rain falls for 9.8 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Patuxent Riding, during the entire year, the rain falls for 156.7 days and collects up to 31.81" (808mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Patuxent Riding, in December, snow falls for 2.4 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, in Patuxent Riding, there are 13.6 snowfall days, and 6.73" (171mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Patuxent Riding, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:54 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What are the temperatures in Patuxent Riding in December?

Patuxent Riding in December has an average high-temperature of 45.5°F (7.5°C) and an average low-temperature of 34.5°F (1.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 93.2°F (34°C).

What is the average humidity in December in Patuxent Riding?

In December, the average relative humidity in Patuxent Riding, Maryland, is 76%.

How many days does it rain in December in Patuxent Riding?

In Patuxent Riding, during December, the rain falls for 9.8 days and regularly aggregates up to 2.68" (68mm) of precipitation.

How many days does it snow in December in Patuxent Riding?

In Patuxent Riding, in December, during 2.4 snowfall days, 0.63" (16mm) of snow is typically accumulated.

What is the month with the shortest days in Patuxent Riding?

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

How many hours of daylight does Patuxent Riding have in December?

The average day length in December in Patuxent Riding, Maryland, is 9h and 29min.

When is the sunrise / sunset in December in Patuxent Riding?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:54 pm EST.

How long on average sun shines in December in Patuxent Riding?

In Patuxent Riding, the average sunshine duration in December is 5.1h.

When is the lowest UV index in Patuxent Riding?

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

What is the UV index intensity in December in Patuxent Riding?

In December, the average daily maximum UV index in Patuxent Riding, Maryland, is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Patuxent Riding, MD

Average temperature in December - Patuxent Riding, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 34.5°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28°F).

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Average pressure in December
Patuxent Riding, MD

Average pressure in December - Patuxent Riding, 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 (29.94"Hg).

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Average wind speed in December
Patuxent Riding, MD

Average wind speed in December - Patuxent Riding, MD
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average humidity in December
Patuxent Riding, MD

Average humidity in December - Patuxent Riding, MD
  • Average humidity in December: 76%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Patuxent Riding, MD

Average rainfall in December - Patuxent Riding, MD
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in December
Patuxent Riding, MD

Average rainfall days in December - Patuxent Riding, MD
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in December
Patuxent Riding, MD

Average snowfall in December - Patuxent Riding, MD
  • Average snowfall in December: 0.63"

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Patuxent Riding, MD

Average snowfall days in December - Patuxent Riding, MD
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (4.3 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
Patuxent Riding, MD

Average daylight in December / Average sunshine in December - Patuxent Riding, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in December
Patuxent Riding, MD

Average sunshine days in December - Patuxent Riding, MD
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in December
Patuxent Riding, MD

Average UV index in December - Patuxent Riding, 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).

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Average cloud cover in December
Patuxent Riding, MD

Average cloud cover in December - Patuxent Riding, MD
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in December
Patuxent Riding, MD

Average visibility in December - Patuxent Riding, 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).

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Patuxent Riding, Maryland, USA

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