December weather forecast
Peter Harmond Acres, MD

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Weather in December

December, the first month of the winter in Peter Harmond Acres, is still a chilly month, with an average temperature ranging between min 32.9°F (0.5°C) and max 44.2°F (6.8°C).

Temperature

December signifies a gentle decline in Peter Harmond Acres's average high-temperature, easing from a fresh 53.1°F (11.7°C) in November to a chilly 44.2°F (6.8°C). December nights experience a consistent temperature drop to a cold 32.9°F (0.5°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Peter Harmond Acres, in December, it is raining for 10.2 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 159.3 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Peter Harmond Acres, in December, snow falls for 2.9 days, with typically accumulated 1.14" (29mm) of snow. In Peter Harmond Acres, during the entire year, snow falls for 15.9 days and aggregates up to 8.7" (221mm) of snow.

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 7:08 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:54 pm EST.

Sunshine

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 low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

How cold does it get in December?

During December, Peter Harmond Acres experiences an average high-temperature of 44.2°F (6.8°C) and a low-temperature of 32.9°F (0.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is calculated to be 91.4°F (33°C).

What is the average humidity in December?

In Peter Harmond Acres, the average relative humidity in December is 76%.

How many days does it rain in December?

In Peter Harmond Acres, in December, it is raining for 10.2 days, with typically 2.24" (57mm) of accumulated precipitation.

How many days does it snow in December?

In Peter Harmond Acres, in December, during 2.9 snowfall days, 1.14" (29mm) of snow is typically accumulated.

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.

How many hours of daylight does Peter Harmond Acres have in December?

The average day length in December is 9h and 28min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:08 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:54 pm EST.

How many hours of sunshine does Peter Harmond Acres have in December?

In December, the average sunshine duration in Peter Harmond Acres is 5.2h.

What are the months 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.

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Peter Harmond Acres, MD

Average temperature in December - Peter Harmond Acres, MD
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in December
Peter Harmond Acres, MD

Average pressure in December - Peter Harmond Acres, 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
Peter Harmond Acres, MD

Average wind speed in December - Peter Harmond Acres, MD
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Peter Harmond Acres, MD

Average humidity in December - Peter Harmond Acres, MD
  • Average humidity in December: 76%

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

Average rainfall in December
Peter Harmond Acres, MD

Average rainfall in December - Peter Harmond Acres, MD
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in December
Peter Harmond Acres, MD

Average rainfall days in December - Peter Harmond Acres, MD
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in December
Peter Harmond Acres, MD

Average snowfall in December - Peter Harmond Acres, MD
  • Average snowfall in December: 1.14"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Peter Harmond Acres, MD

Average snowfall days in December - Peter Harmond Acres, MD
  • Average snowfall days in December: 2.9 days

The month with the highest number of snowfall days is February (4.6 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
Peter Harmond Acres, MD

Average daylight in December / Average sunshine in December - Peter Harmond Acres, 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 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

Average sunshine days in December
Peter Harmond Acres, MD

Average sunshine days in December - Peter Harmond Acres, MD
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Peter Harmond Acres, MD

Average UV index in December - Peter Harmond Acres, 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
Peter Harmond Acres, MD

Average cloud cover in December - Peter Harmond Acres, 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
Peter Harmond Acres, MD

Average visibility in December - Peter Harmond Acres, 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).

Peter Harmond Acres, Maryland, USA

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