December weather forecast
Palmer Park, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Palmer Park, Maryland, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 34.3°F (1.3°C).

Temperature

The arrival of December is marked by a minor reduction in average high-temperature, sliding from a fresh 54.1°F (12.3°C) in November to a frosty 45.5°F (7.5°C). In the month of December, an average of 34.3°F (1.3°C) marks the low-temperature.

Humidity

The months with the highest humidity are May, October and December, with an average relative humidity of 76%.

Rainfall

In Palmer Park, Maryland, in December, during 9.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Palmer Park, during the entire year, the rain falls for 157.9 days and collects up to 31.14" (791mm) of precipitation.

Snowfall

Months with snowfall are January through April and December. December is the first month it typically snows. Throughout December, in the average 2.4 snowfall days, it receives 0.67" (17mm) of snow. Throughout the year, there are 13.5 snowfall days, and 7.2" (183mm) of snow is accumulated.

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 7:07 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:55 pm EST.

Sunshine

In Palmer Park, the average sunshine in December is 5.1h.

UV index

January 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 hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

During December, Palmer Park experiences an average high-temperature of 45.5°F (7.5°C) and a low-temperature of 34.3°F (1.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 93.2°F (34°C).

What is the most humid month?

The months with the highest humidity are May, October and December, with an average relative humidity of 76%.

What is the average humidity in December?

In Palmer Park, the average relative humidity in December is 76%.

How much does it rain in Palmer Park in December?

In Palmer Park, during December, the rain falls for 9.8 days and regularly aggregates up to 2.6" (66mm) of precipitation.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 2.4 snowfall days, it receives 0.67" (17mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Palmer Park have in December?

In Palmer Park, the average day length in December is 9h and 29min.

When is the sunrise / sunset in December?

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, in Palmer Park, sunrise is at 7:25 am and sunset at 4:55 pm EST.

How many hours of sunshine does Palmer Park have in December?

In Palmer Park, the average sunshine duration in December is 5.1h.

When is the lowest UV index in Palmer Park?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Palmer Park, MD

Average temperature in December - Palmer Park, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in December
Palmer Park, MD

Average pressure in December - Palmer Park, 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
Palmer Park, MD

Average wind speed in December - Palmer Park, MD
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Palmer Park, MD

Average humidity in December - Palmer Park, MD
  • Average humidity in December: 76%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall in December
Palmer Park, MD

Average rainfall in December - Palmer Park, MD
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in December
Palmer Park, MD

Average rainfall days in December - Palmer Park, MD
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall in December
Palmer Park, MD

Average snowfall in December - Palmer Park, MD
  • Average snowfall in December: 0.67"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in December
Palmer Park, MD

Average snowfall days in December - Palmer Park, MD
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (4.1 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
Palmer Park, MD

Average daylight in December / Average sunshine in December - Palmer Park, 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).

Average sunshine days in December
Palmer Park, MD

Average sunshine days in December - Palmer Park, MD
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in December
Palmer Park, MD

Average UV index in December - Palmer Park, 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).

Average cloud cover in December
Palmer Park, MD

Average cloud cover in December - Palmer Park, 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).

Average visibility in December
Palmer Park, MD

Average visibility in December - Palmer Park, 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).

Palmer Park, Maryland, USA

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