Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, with an average high of 37°F (2.8°C) and a low of 23.7°F (-4.6°C), signifies the coldest month of the year.Humidity
The average relative humidity in January is 82%.Rainfall
In January, the rain falls for 12.3 days. Throughout January, 2.95" (75mm) of precipitation is accumulated. In Harper, during the entire year, the rain falls for 189.8 days and collects up to 36.54" (928mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall in Harper, West Virginia. Snow falls for 15.6 days and accumulates 8.7" (221mm) of snow.Daylight
The average length of the day in January is 9h and 54min.On the first day of the month, sunrise is at 7:40 am and sunset at 5:16 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:46 pm EST.
Sunshine
With an average of 4h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Harper?
How cold is it in Harper in January?
What is the average humidity in January in Harper?
How much does it rain in Harper in January?
What is the snowiest month in Harper?
How many days does it snow in January in Harper?
How many hours of daylight does Harper have in January?
When is the sunrise / sunset in January in Harper?
What is the month with the least sunshine in Harper?
How many hours of sunshine does Harper have in January?
What are the months with the lowest UV index in Harper?
What is the UV index intensity in January in Harper?
Average temperature in January
Harper, WV
- Average high temperature in January: 37°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in January: 23.7°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in January
Harper, WV
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Harper, WV
- Average wind speed in January: 7.5mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in January
Harper, WV
- Average humidity in January: 82%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April, June, July, August and November (78%).
Average rainfall in January
Harper, WV
- Average rainfall in January: 2.95"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Harper, WV
- Average rainfall days in January: 12.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in January
Harper, WV
- Average snowfall in January: 8.7"
The month with the highest snowfall is January (8.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Harper, WV
- Average snowfall days in January: 15.6 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Harper, WV
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Harper, WV
- Average sunshine days in January: 9 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is May (7 days).
Average UV index in January
Harper, WV
- Average UV index in January: 2
The months with the highest UV index are June 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
Harper, WV
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in January
Harper, WV
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
Harper, West Virginia, USA
Weather forecast for your location
2. Allow the app to use your location