January weather forecastGrafton, WV
January
Weather in January
January in Grafton, West Virginia typically experiences cold temperatures and a high level of humidity. Indeed, the winter chill is in full swing with the month's low and high temperatures fluctuating between 21.7°F (-5.7°C) and 35.6°F (2°C). Snowfall is a common sight during this time, blanketing the city in a frosty white layer. The chilly weather brings an increased chance of humidity, causing frost formations on colder mornings. Overall, January sets a generally cold and wintry scene.Temperature
Grafton's coldest month, January, registers temperatures that range from a high of 35.6°F (2°C) to a low of 21.7°F (-5.7°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 84%.Rainfall
In Grafton, in January, it is raining for 12.1 days, with typically 2.99" (76mm) of accumulated precipitation. In Grafton, during the entire year, the rain falls for 184.5 days and collects up to 35.35" (898mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 16.8 days and accumulates 7.87" (200mm) of snow.Daylight
In Grafton, the average length of the day in January is 9h and 46min.On the first day of the month, sunrise is at 7:39 am and sunset at 5:07 pm. On the last day of January, sunrise is at 7:28 am and sunset at 5:38 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 3.2h of sunshine.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 of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 2 suggests these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Grafton, WV
- Average high temperature in January: 35.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in January: 21.7°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 (21.7°F).
Average pressure in January
Grafton, 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 (29.96"Hg).
Average wind speed in January
Grafton, WV
- Average wind speed in January: 7.3mph
The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in January
Grafton, 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
Grafton, WV
- Average rainfall in January: 2.99"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Grafton, WV
- Average rainfall days in January: 12.1 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is February (11.9 days).
Average snowfall in January
Grafton, WV
- Average snowfall in January: 7.87"
The month with the highest snowfall is January (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grafton, WV
- Average snowfall days in January: 16.8 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grafton, 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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in January
Grafton, WV
- Average sunshine days in January: 6.5 days
The month with the most sunshine days is October (13.7 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in January
Grafton, WV
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Grafton, 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
Grafton, 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).
