December weather forecast
Chelsea Pines, MD

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Weather in December

The first month of the winter, December, is also a frosty month in Chelsea Pines, Maryland, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 34.7°F (1.5°C).

Temperature

The beginning of December brings a slight decrease in the average high-temperature, transitioning from a cool 53.8°F (12.1°C) in November to a frosty 45.5°F (7.5°C). Chelsea Pines encounters an average low-temperature of 34.7°F (1.5°C) during December nights.

Humidity

In Chelsea Pines, the average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 11.4 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. Throughout the year, there are 155.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Chelsea Pines, in December, snow falls for 2.4 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, there are 14 snowfall days, and 6.14" (156mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:53 pm EST.

Sunshine

In Chelsea Pines, the average sunshine in December is 5.2h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

Chelsea Pines in December has an average high-temperature of 45.5°F (7.5°C) and an average low-temperature of 34.7°F (1.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 91.4°F (33°C).

What is the average humidity in December in Chelsea Pines?

In December, the average relative humidity is 75%.

How much does it rain in December?

In Chelsea Pines, in December, during 11.4 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Chelsea Pines, in December, snow falls for 2.4 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days in Chelsea Pines?

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

What is the average length of the day in December in Chelsea Pines?

In Chelsea Pines, the average day length in December is 9h and 28min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:06 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:53 pm EST.

How many hours of sunshine does Chelsea Pines have in December?

In December, the average sunshine duration is 5.2h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

In Chelsea Pines, the average daily maximum UV index in December is 2. A UV Index reading 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
Chelsea Pines, MD

Average temperature in December - Chelsea Pines, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in December: 34.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in December
Chelsea Pines, MD

Average pressure in December - Chelsea Pines, 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
Chelsea Pines, MD

Average wind speed in December - Chelsea Pines, MD
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in December
Chelsea Pines, MD

Average humidity in December - Chelsea Pines, MD
  • Average humidity in December: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in December
Chelsea Pines, MD

Average rainfall in December - Chelsea Pines, MD
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Chelsea Pines, MD

Average rainfall days in December - Chelsea Pines, MD
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in December
Chelsea Pines, MD

Average snowfall in December - Chelsea Pines, MD
  • Average snowfall in December: 0.63"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Chelsea Pines, MD

Average snowfall days in December - Chelsea Pines, MD
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (4.4 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
Chelsea Pines, MD

Average daylight in December / Average sunshine in December - Chelsea Pines, 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 6min).

Average sunshine days in December
Chelsea Pines, MD

Average sunshine days in December - Chelsea Pines, MD
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Chelsea Pines, MD

Average UV index in December - Chelsea Pines, 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, November and December (UV index 2).

Average cloud cover in December
Chelsea Pines, MD

Average cloud cover in December - Chelsea Pines, MD
  • Average cloud cover in December: 44

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Chelsea Pines, MD

Average visibility in December - Chelsea Pines, 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).

Chelsea Pines, Maryland, USA

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