Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Brookhaven?
What is the average humidity in December in Brookhaven?
How many days does it rain in December in Brookhaven?
How many days does it snow in December in Brookhaven?
What is the month with the shortest days in Brookhaven?
What is the average length of the day in December in Brookhaven?
When is the sunrise / sunset in December in Brookhaven?
How many hours of sunshine does Brookhaven have in December?
What is the month with the lowest UV index in Brookhaven?
How high is the UV index in December in Brookhaven?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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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