December weather forecast
Coral Hills, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Coral Hills, 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

December witnesses a gentle descent in average high-temperature, descending from November's fresh 54.1°F (12.3°C) to a frosty 45.5°F (7.5°C). In the month of December, Coral Hills witnesses a consistent average low-temperature of 34.3°F (1.3°C).

Humidity

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

Rainfall

In Coral Hills, during December, the rain falls for 9.8 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.

Snowfall

January through April and December are months with snowfall. 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

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:55 pm EST.

Sunshine

In Coral Hills, 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 low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What are the temperatures in December?

The high-temperature, in December, in Coral Hills, is 45.5°F (7.5°C), while the low-temperature averages to 34.3°F (1.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 93.2°F (34°C).

What are the most humid months?

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 December, the average relative humidity is 76%.

How many days does it rain in December?

In Coral Hills, Maryland, in December, during 9.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

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.

What is the average length of the day in December?

The average day length in December is 9h and 30min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:55 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 5.1h.

When is the lowest UV index?

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 Coral Hills, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
Coral Hills, MD

Average temperature in December - Coral Hills, 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
Coral Hills, MD

Average pressure in December - Coral Hills, 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
Coral Hills, MD

Average wind speed in December - Coral Hills, 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
Coral Hills, MD

Average humidity in December - Coral Hills, 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
Coral Hills, MD

Average rainfall in December - Coral Hills, 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
Coral Hills, MD

Average rainfall days in December - Coral Hills, 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
Coral Hills, MD

Average snowfall in December - Coral Hills, 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
Coral Hills, MD

Average snowfall days in December - Coral Hills, 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
Coral Hills, MD

Average daylight in December / Average sunshine in December - Coral Hills, MD
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
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
Coral Hills, MD

Average sunshine days in December - Coral Hills, 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
Coral Hills, MD

Average UV index in December - Coral Hills, 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
Coral Hills, MD

Average cloud cover in December - Coral Hills, 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
Coral Hills, MD

Average visibility in December - Coral Hills, 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).

Coral Hills, Maryland, USA

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