January weather forecastBig Isaac, WV
January
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 9h and 48min
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 12min
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: 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: 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: 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: 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).
