December weather forecast
Deer Park Ridge, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Deer Park Ridge, Maryland, with an average temperature varying between 43.5°F (6.4°C) and 31.5°F (-0.3°C).

Temperature

The transition to December results in a modest reduction in average high-temperature, moving from a cool 52.3°F (11.3°C) in November to a frosty 43.5°F (6.4°C). An average minimum temperature of 31.5°F (-0.3°C) marks the month of December.

Humidity

In Deer Park Ridge, the average relative humidity in December is 77%.

Rainfall

In Deer Park Ridge, in December, during 10.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 159 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In December, it is snowing for 3.2 days. Throughout December, 1.54" (39mm) of snow is accumulated. Throughout the year, there are 18.7 snowfall days, and 9.96" (253mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:54 pm EST.

Sunshine

In Deer Park Ridge, 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 of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 2 in December translates into these instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The average high-temperature, in December, in Deer Park Ridge, is 43.5°F (6.4°C), while the average low-temperature is 31.5°F (-0.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 77%.

How many days does it rain in December?

In December, the rain falls for 10.5 days. Throughout December, 2.4" (61mm) of precipitation is accumulated.

How many days does it snow in December?

In Deer Park Ridge, in December, during 3.2 snowfall days, 1.54" (39mm) of snow is typically accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Deer Park Ridge have in December?

The average day length in December is 9h and 26min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:54 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 5.1h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Deer Park Ridge, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from 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
Deer Park Ridge, MD

Average temperature in December - Deer Park Ridge, MD
  • Average high temperature in December: 43.5°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 (37.6°F).

  • Average low temperature in December: 31.5°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in December
Deer Park Ridge, MD

Average pressure in December - Deer Park Ridge, 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).

Average wind speed in December
Deer Park Ridge, MD

Average wind speed in December - Deer Park Ridge, MD
  • Average wind speed in December: 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 (5.3mph).

Average humidity in December
Deer Park Ridge, MD

Average humidity in December - Deer Park Ridge, MD
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in December
Deer Park Ridge, MD

Average rainfall in December - Deer Park Ridge, MD
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days in December
Deer Park Ridge, MD

Average rainfall days in December - Deer Park Ridge, MD
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in December
Deer Park Ridge, MD

Average snowfall in December - Deer Park Ridge, MD
  • Average snowfall in December: 1.54"

The month with the highest snowfall is March (2.8").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Deer Park Ridge, MD

Average snowfall days in December - Deer Park Ridge, MD
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Deer Park Ridge, MD

Average daylight in December / Average sunshine in December - Deer Park Ridge, 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 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).

Average sunshine days in December
Deer Park Ridge, MD

Average sunshine days in December - Deer Park Ridge, MD
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in December
Deer Park Ridge, MD

Average UV index in December - Deer Park Ridge, 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).

Average cloud cover in December
Deer Park Ridge, MD

Average cloud cover in December - Deer Park Ridge, MD
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Deer Park Ridge, MD

Average visibility in December - Deer Park Ridge, 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).

Deer Park Ridge, Maryland, USA

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