December weather forecast
Clements, MD

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Weather in December

The first month of the winter, December, is still a chilly month in Clements, Maryland, with an average temperature ranging between min 36.9°F (2.7°C) and max 47.1°F (8.4°C).

Temperature

A modest decline in the average high-temperature is seen during December, decreasing from a cool 55°F (12.8°C) in November to a frosty 47.1°F (8.4°C). December nights cool down to an average low-temperature of 36.9°F (2.7°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Clements, in December, during 8.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Clements, during the entire year, the rain falls for 146.1 days and collects up to 17.83" (453mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Clements, in December, during 1.8 snowfall days, 0.71" (18mm) of snow is typically accumulated. Throughout the year, there are 9 snowfall days, and 2.76" (70mm) 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 7:05 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:56 pm EST.

Sunshine

The average sunshine in December is 5.3h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December leads to these advisories:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

What is the usual temperature for Clements in December?

The average high-temperature and low-temperature during December are 47.1°F (8.4°C) and 36.9°F (2.7°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in December?

The average relative humidity in December is 76%.

How many days does it rain in December?

In Clements, in December, during 8.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

How many days does it snow in December?

In December, in Clements, it is snowing for 1.8 days. Throughout December, 0.71" (18mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Clements have in December?

The average day length in December in Clements is 9h and 33min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:46 pm. On the last day of the month, in Clements, sunrise is at 7:23 am and sunset at 4:56 pm EST.

How many hours of sunshine does Clements have in December?

The average sunshine duration in December is 5.3h.

What are the months with the lowest UV index?

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 in Clements?

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

Average temperature in December - Clements, MD
  • Average high temperature in December: 47.1°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 (41.7°F).

  • Average low temperature in December: 36.9°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in December
Clements, MD

Average pressure in December - Clements, MD
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Clements, MD

Average wind speed in December - Clements, MD
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in December
Clements, MD

Average humidity in December - Clements, MD
  • Average humidity in December: 76%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is January (73%).

Average rainfall in December
Clements, MD

Average rainfall in December - Clements, MD
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is August (2.52").
The driest months (with the least rainfall) are January and November (0.94").

Average rainfall days in December
Clements, MD

Average rainfall days in December - Clements, MD
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in December
Clements, MD

Average snowfall in December - Clements, MD
  • Average snowfall in December: 0.71"

The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Clements, MD

Average snowfall days in December - Clements, MD
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Clements, MD

Average daylight in December / Average sunshine in December - Clements, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in December
Clements, MD

Average sunshine days in December - Clements, MD
  • Average sunshine days in December: 20 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is August (11.8 days).

Average UV index in December
Clements, MD

Average UV index in December - Clements, 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
Clements, MD

Average cloud cover in December - Clements, MD
  • Average cloud cover in December: 43

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

Average visibility in December
Clements, MD

Average visibility in December - Clements, 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).

Clements, Maryland, USA

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