December weather forecast
Scotts Manor, MD

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Weather in December

December, the first month of the winter in Scotts Manor, is still a chilly month, with an average temperature varying between 45.5°F (7.5°C) and 34.5°F (1.4°C).

Temperature

Scotts Manor's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's fresh 54°F (12.2°C) to a chilly 45.5°F (7.5°C). In December, the average low-temperature records at a cold 34.5°F (1.4°C) during the nights.

Humidity

In December, the average relative humidity in Scotts Manor is 76%.

Rainfall

In Scotts Manor, Maryland, during December, the rain falls for 9.8 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 156.7 rainfall days, and 31.81" (808mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Scotts Manor, in December, snow falls for 2.4 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, there are 13.6 snowfall days, and 6.73" (171mm) 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 the month, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of December, in Scotts Manor, sunrise is at 7:25 am and sunset at 4:54 pm EST.

Sunshine

In December, the average sunshine 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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

What are December temperatures?

December temperatures vary between a high-temperature of 45.5°F (7.5°C) and a low-temperature of 34.5°F (1.4°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 93.2°F (34°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How many days does it rain in December?

In Scotts Manor, during December, the rain falls for 9.8 days and regularly aggregates up to 2.68" (68mm) of precipitation.

How much does it snow in December?

In Scotts Manor, during December, snow falls for 2.4 days and regularly aggregates up to 0.63" (16mm) 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 in Scotts Manor?

In Scotts Manor, the average day length in December is 9h and 29min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:25 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 is the month with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Scotts Manor, MD

Average temperature in December - Scotts Manor, MD
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 34.5°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure in December
Scotts Manor, MD

Average pressure in December - Scotts Manor, 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
Scotts Manor, MD

Average wind speed in December - Scotts Manor, MD
  • Average wind speed in December: 7.8mph

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 (5.6mph).

Average humidity in December
Scotts Manor, MD

Average humidity in December - Scotts Manor, MD
  • Average humidity in December: 76%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is April (71%).

Average rainfall in December
Scotts Manor, MD

Average rainfall in December - Scotts Manor, MD
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in December
Scotts Manor, MD

Average rainfall days in December - Scotts Manor, MD
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in December
Scotts Manor, MD

Average snowfall in December - Scotts Manor, MD
  • Average snowfall in December: 0.63"

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Scotts Manor, MD

Average snowfall days in December - Scotts Manor, MD
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (4.3 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
Scotts Manor, MD

Average daylight in December / Average sunshine in December - Scotts Manor, 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
Scotts Manor, MD

Average sunshine days in December - Scotts Manor, MD
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in December
Scotts Manor, MD

Average UV index in December - Scotts Manor, 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
Scotts Manor, MD

Average cloud cover in December - Scotts Manor, 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
Scotts Manor, MD

Average visibility in December - Scotts Manor, 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).

Scotts Manor, Maryland, USA

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