December weather forecast
Brookeville, MD

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Weather in December

December, the first month of the winter in Brookeville, is also a frosty month, with temperature in the range of an average high of 45.3°F (7.4°C) and an average low of 32.9°F (0.5°C).

Temperature

With December's onset, the weather reveals a slight temperature decrease, transitioning from a cool 53.4°F (11.9°C) in November to a frosty 45.3°F (7.4°C). During December, the average low-temperature is an icy 32.9°F (0.5°C).

Humidity

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

Rainfall

In Brookeville, during December, the rain falls for 10.2 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, there are 160.9 rainfall days, and 32.99" (838mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Brookeville, in December, during 2.9 snowfall days, 1.38" (35mm) of snow is typically accumulated. Throughout the year, there are 17.1 snowfall days, and 10.2" (259mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Brookeville, with an average of 9h and 30min of daylight.
On the first day of December in Brookeville, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:55 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: In December, a regular UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

What are the temperatures in Brookeville in December?

An average high-temperature, in December, in Brookeville, is 45.3°F (7.4°C) and the average low-temperature is 32.9°F (0.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 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 Brookeville, the average relative humidity in December is 76%.

How much does it rain in December?

In Brookeville, in December, it is raining for 10.2 days, with typically 2.76" (70mm) of accumulated precipitation.

How many days does it snow in December?

In Brookeville, during December, snow falls for 2.9 days and regularly aggregates up to 1.38" (35mm) 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.

How many hours of daylight does Brookeville have in December?

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

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:55 pm EST.

How long on average sun shines in December?

In Brookeville, the average sunshine duration in December is 5.1h.

What is the month with the lowest UV index?

January, 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 Brookeville?

In Brookeville, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Brookeville, MD

Average temperature in December - Brookeville, MD
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in December
Brookeville, MD

Average pressure in December - Brookeville, 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 (29.95"Hg).

Average wind speed in December
Brookeville, MD

Average wind speed in December - Brookeville, MD
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Brookeville, MD

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

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in December
Brookeville, MD

Average rainfall in December - Brookeville, MD
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in December
Brookeville, MD

Average rainfall days in December - Brookeville, MD
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in December
Brookeville, MD

Average snowfall in December - Brookeville, MD
  • Average snowfall in December: 1.38"

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

Average snowfall days in December
Brookeville, MD

Average snowfall days in December - Brookeville, MD
  • Average snowfall days in December: 2.9 days

The months with the highest number of snowfall days are January and February (5.1 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
Brookeville, MD

Average daylight in December / Average sunshine in December - Brookeville, 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 month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in December
Brookeville, MD

Average sunshine days in December - Brookeville, MD
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in December
Brookeville, MD

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

Average cloud cover in December
Brookeville, MD

Average cloud cover in December - Brookeville, MD
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Brookeville, MD

Average visibility in December - Brookeville, MD
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Brookeville, Maryland, USA

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