January weather forecast
Brookhaven, WV

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Weather in January

January, the same as December, is an icy winter month in Brookhaven, West Virginia, with an average temperature varying between 21.6°F (-5.8°C) and 34.5°F (1.4°C).

Temperature

January is the coldest month of the year, registering average temperatures as high as 34.5°F (1.4°C) and as low as 21.6°F (-5.8°C).

Humidity

January and February, with an average relative humidity of 84%, are the most humid months in Brookhaven, West Virginia.

Rainfall

In Brookhaven, in January, it is raining for 11.1 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, in Brookhaven, West Virginia, there are 187.8 rainfall days, and 36.46" (926mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In January, it is snowing for 17 days. Throughout January, 7.4" (188mm) of snow is accumulated. Throughout the year, in Brookhaven, there are 63.1 snowfall days, and 32.32" (821mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 45min.
On the first day of January in Brookhaven, sunrise is at 7:40 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:37 pm EST.

Sunshine

With an average of 3h of sunshine, January has the least sunshine of the year in Brookhaven.

UV index

The average daily maximum UV index in January in Brookhaven is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the UV index of 2 transforms into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Brookhaven?

January, with an average high of 34.5°F (1.4°C) and a low of 21.6°F (-5.8°C), signifies the coldest month of the year in Brookhaven.

How cold is January in Brookhaven?

In January, the average high-temperature and low-temperature in Brookhaven, West Virginia, are 34.5°F (1.4°C) and 21.6°F (-5.8°C) respectively.

What is the most humid month in Brookhaven?

January and February, with an average relative humidity of 84%, are most humid months in Brookhaven, West Virginia.

What is the average humidity in January in Brookhaven?

In January, the average relative humidity in Brookhaven, West Virginia, is 84%.

How many days does it rain in January in Brookhaven?

In Brookhaven, in January, it is raining for 11.1 days, with typically 2.99" (76mm) of accumulated precipitation.

How many days does it snow in January in Brookhaven?

In Brookhaven, West Virginia, in January, snow falls for 17 days, with typically accumulated 7.4" (188mm) of snow.

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

In Brookhaven, the average day length in January is 9h and 45min.

What time are sunrise and sunset in January in Brookhaven?

On the first day of January in Brookhaven, sunrise is at 7:40 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:37 pm EST.

What is the month with the least sunshine in Brookhaven?

The month with the least sunshine in Brookhaven, West Virginia, is January, with an average of 3h of sunshine.

How many hours of sunshine does Brookhaven have in January?

In Brookhaven, the average sunshine duration in January is 3h.

What is the UV index reading in January in Brookhaven?

In January, the average daily maximum UV index in Brookhaven, West Virginia, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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 January
Brookhaven, WV

Average temperature in January - Brookhaven, WV
  • Average high temperature in January: 34.5°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 January: 21.6°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 January
Brookhaven, WV

Average pressure in January - Brookhaven, WV
  • Average pressure in January: 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 January
Brookhaven, WV

Average wind speed in January - Brookhaven, WV
  • Average wind speed in January: 7.4mph

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 January
Brookhaven, WV

Average humidity in January - Brookhaven, WV
  • Average humidity in January: 84%

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 January
Brookhaven, WV

Average rainfall in January - Brookhaven, WV
  • Average rainfall in January: 2.99"

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 January
Brookhaven, WV

Average rainfall days in January - Brookhaven, WV
  • Average rainfall days in January: 11.1 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 January
Brookhaven, WV

Average snowfall in January - Brookhaven, WV
  • Average snowfall in January: 7.4"

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 January
Brookhaven, WV

Average snowfall days in January - Brookhaven, WV
  • Average snowfall days in January: 17 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 January /
Average sunshine in January
Brookhaven, WV

Average daylight in January / Average sunshine in January - Brookhaven, WV
  • Average daylight in January: 9h and 4min

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 January: 3h

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

Average sunshine days in January
Brookhaven, WV

Average sunshine days in January - Brookhaven, WV
  • Average sunshine days in January: 6.7 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 January
Brookhaven, WV

Average UV index in January - Brookhaven, WV
  • Average UV index in January: 2

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 January
Brookhaven, WV

Average cloud cover in January - Brookhaven, WV
  • Average cloud cover in January: 68

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 January
Brookhaven, WV

Average visibility in January - Brookhaven, WV
  • Average visibility in January: 4mi

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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