January weather forecastHenderson, WV
January
Weather in January
January in Henderson, West Virginia, typically begins with colder temperatures and sees the most snowfall of the year, with 2.01" (51mm) falling over 11.3 days. Residents frequently deal with cold fronts, icy roads, and shovel-ready mornings as winter's grip tightens. While the wintry chill remains persistently during January, it eases slightly as the month progresses, giving way to milder days. Despite this, the city sees little of the sun, with an average daylight duration of only 9.8 hours. Outdoor activities are limited due to weather conditions, making January a good time to appreciate indoor pursuits.Temperature
During the coldest month, January, temperatures average a high of 37.9°F (3.3°C) and a low of 24.3°F (-4.3°C).Humidity
January and February, with an average relative humidity of 82%, are the most humid months.Rainfall
In January, the rain falls for 11.8 days. Throughout January, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 169.2 rainfall days, and 27.56" (700mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Henderson, in January, during 11.3 snowfall days, 2.01" (51mm) of snow is typically accumulated. Throughout the year, there are 35.5 snowfall days, and 7.2" (183mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 49min.On the first day of January, sunrise is at 7:46 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:48 pm EST.
Sunshine
January has the least sunshine of the year in Henderson, with an average of 3.7h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 2 in January translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Henderson, WV
- Average high temperature in January: 37.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
Henderson, WV
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
Henderson, WV
- Average wind speed in January: 6.9mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in January
Henderson, WV
- Average humidity in January: 82%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (74%).
Average rainfall in January
Henderson, WV
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in January
Henderson, WV
- Average rainfall days in January: 11.8 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in January
Henderson, WV
- Average snowfall in January: 2.01"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Henderson, WV
- Average snowfall days in January: 11.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Henderson, WV
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 3h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Henderson, WV
- Average sunshine days in January: 11.3 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in January
Henderson, 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 and December (UV index 2).
Average cloud cover in January
Henderson, WV
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Henderson, WV
- Average visibility in January: 5mi
The months with the highest visibility are April, June and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September, October and December (5mi).
