December weather forecast
Ridgeway Manor, MD

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Weather in December

December, the first month of the winter in Ridgeway Manor, is still a chilly month, with an average temperature varying between 45.5°F (7.5°C) and 34.2°F (1.2°C).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from a cool 53.4°F (11.9°C) in November to a chilly 45.5°F (7.5°C). The average temperature drops to a cold 34.2°F (1.2°C) during the night in the month of December.

Humidity

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

Rainfall

In Ridgeway Manor, in December, it is raining for 10.1 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 156.3 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Ridgeway Manor, during December, snow falls for 2.2 days and regularly aggregates up to 0.79" (20mm) of snow. In Ridgeway Manor, during the entire year, snow falls for 12.8 days and aggregates up to 6.77" (172mm) of snow.

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, sunrise is at 7:25 am and sunset at 4:53 pm EST.

Sunshine

In Ridgeway Manor, Maryland, the average sunshine in December is 5.2h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

What are the temperatures in December?

In December, the average high-temperature and low-temperature are 45.5°F (7.5°C) and 34.2°F (1.2°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in August is estimated at 91.4°F (33°C).

What is the average humidity in December?

The average relative humidity in December is 76%.

How much does it rain in December?

In Ridgeway Manor, during December, the rain falls for 10.1 days and regularly aggregates up to 2.28" (58mm) of precipitation.

How much does it snow in December?

In Ridgeway Manor, in December, snow falls for 2.2 days, with typically accumulated 0.79" (20mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Ridgeway Manor have in December?

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

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 4:53 pm EST.

How many hours of sunshine does Ridgeway Manor have in December?

In Ridgeway Manor, the average sunshine duration in December is 5.2h.

What is the month with the lowest UV index?

January, February, November 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 Ridgeway Manor, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Ridgeway Manor, MD

Average temperature in December - Ridgeway Manor, 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 (38.8°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure in December
Ridgeway Manor, MD

Average pressure in December - Ridgeway 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
Ridgeway Manor, MD

Average wind speed in December - Ridgeway Manor, MD
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Ridgeway Manor, MD

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

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in December
Ridgeway Manor, MD

Average rainfall in December - Ridgeway Manor, MD
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (1.77").

Average rainfall days in December
Ridgeway Manor, MD

Average rainfall days in December - Ridgeway Manor, MD
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in December
Ridgeway Manor, MD

Average snowfall in December - Ridgeway Manor, MD
  • Average snowfall in December: 0.79"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Ridgeway Manor, MD

Average snowfall days in December - Ridgeway Manor, MD
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (3.9 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
Ridgeway Manor, MD

Average daylight in December / Average sunshine in December - Ridgeway 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 6min).

Average sunshine days in December
Ridgeway Manor, MD

Average sunshine days in December - Ridgeway Manor, MD
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in December
Ridgeway Manor, MD

Average UV index in December - Ridgeway 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, February, November and December (UV index 2).

Average cloud cover in December
Ridgeway Manor, MD

Average cloud cover in December - Ridgeway Manor, MD
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in December
Ridgeway Manor, MD

Average visibility in December - Ridgeway 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).

Ridgeway Manor, Maryland, USA

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