December weather forecast
Brookhaven, WV

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Weather in December

The first month of the winter, December, is also a wintry month in Brookhaven, West Virginia, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 40.6°F (4.8°C).

Temperature

The start of December involves a temperature drop, moving from a cool 50°F (10°C) in November to an icy 40.6°F (4.8°C). Brookhaven's average low-temperature in December is measured at a freezing cold 29.3°F (-1.5°C).

Humidity

The average relative humidity in December is 83%.

Rainfall

In Brookhaven, in December, during 13 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In Brookhaven, West Virginia, during the entire year, the rain falls for 187.8 days and collects up to 36.46" (926mm) of precipitation.

Snowfall

Months with snowfall in Brookhaven, West Virginia, are January through May, October through December. In December, it is snowing for 13.1 days. Throughout December, 6.14" (156mm) of snow is accumulated. In Brookhaven, during the entire year, snow falls for 63.1 days and aggregates up to 32.32" (821mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:56 pm. On the last day of December, in Brookhaven, West Virginia, sunrise is at 7:40 am and sunset at 5:05 pm EST.

Sunshine

In December, the average sunshine in Brookhaven, West Virginia, is 3.8h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Brookhaven?

The average high-temperature and low-temperature in Brookhaven during December are 40.6°F (4.8°C) and 29.3°F (-1.5°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December in Brookhaven?

The average relative humidity in December is 83%.

How many days does it rain in December in Brookhaven?

In Brookhaven, during December, the rain falls for 13 days and regularly aggregates up to 3.19" (81mm) of precipitation.

How many days does it snow in December in Brookhaven?

In Brookhaven, in December, during 13.1 snowfall days, 6.14" (156mm) of snow is typically accumulated.

What is the month with the shortest days in Brookhaven?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December in Brookhaven?

The average day length in December is 9h and 26min.

When is the sunrise / sunset in December in Brookhaven?

On the first day of December in Brookhaven, sunrise is at 7:21 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:05 pm EST.

How many hours of sunshine does Brookhaven have in December?

In December, the average sunshine duration in Brookhaven, West Virginia, is 3.8h.

What is the month with the lowest UV index in Brookhaven?

The month with the lowest UV index in Brookhaven is December, with an average maximum UV index of 1.

How high is the UV index in December in Brookhaven?

The average daily maximum UV index in December in Brookhaven, West Virginia, is 1. A UV Index value of 2, and less, symbolizes 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
Brookhaven, WV

Average temperature in December - Brookhaven, WV
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Brookhaven, WV

Average pressure in December - Brookhaven, WV
  • Average pressure in December: 30.12"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
Brookhaven, WV

Average wind speed in December - Brookhaven, WV
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Brookhaven, WV

Average humidity in December - Brookhaven, WV
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in December
Brookhaven, WV

Average rainfall in December - Brookhaven, WV
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in December
Brookhaven, WV

Average rainfall days in December - Brookhaven, WV
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).

Average snowfall in December
Brookhaven, WV

Average snowfall in December - Brookhaven, WV
  • Average snowfall in December: 6.14"

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Brookhaven, WV

Average snowfall days in December - Brookhaven, WV
  • Average snowfall days in December: 13.1 days

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Brookhaven, WV

Average daylight in December / Average sunshine in December - Brookhaven, WV
  • Average daylight in December: 9h and 2min

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 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Brookhaven, WV

Average sunshine days in December - Brookhaven, WV
  • Average sunshine days in December: 10 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).

Average UV index in December
Brookhaven, WV

Average UV index in December - Brookhaven, WV
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Brookhaven, WV

Average cloud cover in December - Brookhaven, WV
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Brookhaven, WV

Average visibility in December - Brookhaven, WV
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

Brookhaven, West Virginia, USA

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