January weather forecast
Big Isaac, WV

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Weather in January

January, like December, in Big Isaac, West Virginia, is an icy winter month, with an average temperature fluctuating between 36.1°F (2.3°C) and 23°F (-5°C).

Temperature

Temperature records mark January as the coldest month, with highs averaging 36.1°F (2.3°C) and lows at 23°F (-5°C).

Humidity

The months with the highest humidity in Big Isaac are January and February, with an average relative humidity of 83%.

Rainfall

In Big Isaac, in January, it is raining for 11.7 days, with typically 2.95" (75mm) of accumulated precipitation. In Big Isaac, during the entire year, the rain falls for 186.8 days and collects up to 38.7" (983mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall in Big Isaac is January, when snow falls for 17.1 days and typically aggregates up to 7.44" (189mm) of snow.

Daylight

In Big Isaac, the average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:41 am and sunset at 5:09 pm. On the last day of January, sunrise is at 7:30 am and sunset at 5:41 pm EST.

Sunshine

January has the least sunshine of the year in Big Isaac, with an average of 3.2h of sunshine.

UV index

The months with the lowest UV index in Big Isaac, West Virginia, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. 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

What are the coldest months in Big Isaac?

In Big Isaac, the average lowest temperatures are observed in January, with a high of 36.1°F (2.3°C) and a low of 23°F (-5°C).

How cold is January in Big Isaac?

The high-temperature, in January, in Big Isaac, records 36.1°F (2.3°C), while the low-temperature is 23°F (-5°C).

What is the most humid month in Big Isaac?

The months with the highest humidity in Big Isaac are January and February, with an average relative humidity of 83%.

What is the average humidity in January in Big Isaac?

The average relative humidity in January in Big Isaac, West Virginia, is 83%.

How many days does it rain in January in Big Isaac?

In Big Isaac, West Virginia, in January, during 11.7 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

What is the snowiest month in Big Isaac?

January is the month with the most snowfall in Big Isaac, West Virginia. Snow falls for 17.1 days and accumulates 7.44" (189mm) of snow.

How many days does it snow in January in Big Isaac?

In Big Isaac, West Virginia, during January, snow falls for 17.1 days and regularly aggregates up to 7.44" (189mm) of snow.

How many hours of daylight does Big Isaac have in January?

The average day length in January is 9h and 47min.

When are sunrise and sunset in January in Big Isaac?

In January, on the first day of the month, sunrise is at 7:41 am and sunset at 5:09 pm. On the last day of the month, in Big Isaac, sunrise is at 7:30 am and sunset at 5:41 pm EST.

What is the month with the least sunshine in Big Isaac?

With an average of 3.2h of sunshine, January has the least sunshine of the year in Big Isaac.

How long on average sun shines in January in Big Isaac?

The average sunshine duration in January in Big Isaac, West Virginia, is 3.2h.

When is the lowest UV index in Big Isaac?

The months with the lowest UV index in Big Isaac, West Virginia, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Big Isaac?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat 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
Big Isaac, WV

Average temperature in January - Big Isaac, WV
  • Average high temperature in January: 36.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in January: 23°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (23°F).

Average pressure in January
Big Isaac, WV

Average pressure in January - Big Isaac, WV
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in January
Big Isaac, WV

Average wind speed in January - Big Isaac, WV
  • Average wind speed in January: 6.8mph

The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in January
Big Isaac, WV

Average humidity in January - Big Isaac, WV
  • Average humidity in January: 83%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, August and November (77%).

Average rainfall in January
Big Isaac, WV

Average rainfall in January - Big Isaac, WV
  • Average rainfall in January: 2.95"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days in January
Big Isaac, WV

Average rainfall days in January - Big Isaac, WV
  • Average rainfall days in January: 11.7 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (11.4 days).

Average snowfall in January
Big Isaac, WV

Average snowfall in January - Big Isaac, WV
  • Average snowfall in January: 7.44"

The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Big Isaac, WV

Average snowfall days in January - Big Isaac, WV
  • Average snowfall days in January: 17.1 days

The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Big Isaac, WV

Average daylight in January / Average sunshine in January - Big Isaac, WV
  • Average daylight in January: 9h and 5min

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 January: 3h and 1min

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 12min).

Average sunshine days in January
Big Isaac, WV

Average sunshine days in January - Big Isaac, WV
  • Average sunshine days in January: 7.4 days

The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is January (7.4 days).

Average UV index in January
Big Isaac, WV

Average UV index in January - Big Isaac, WV
  • Average UV index in January: 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 January
Big Isaac, WV

Average cloud cover in January - Big Isaac, 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
Big Isaac, WV

Average visibility in January - Big Isaac, 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).

Big Isaac, West Virginia, USA

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