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 is Grayson's coldest month, registering average high temperatures of 38.8°F (3.8°C) and lows of 24.3°F (-4.3°C).Humidity
The average relative humidity in January in Grayson is 79%.Rainfall
In Grayson, during January, the rain falls for 12.8 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Grayson, North Carolina, during the entire year, the rain falls for 176.9 days and collects up to 31.61" (803mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Grayson, in January, snow falls for 9.9 days, with typically accumulated 4.45" (113mm) of snow. Throughout the year, there are 38.9 snowfall days, and 20.67" (525mm) of snow is accumulated.Daylight
In Grayson, the average length of the day in January is 10h and 0min.On the first day of January, sunrise is at 7:38 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:51 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 4.8h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. 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: The maximum daily UV index of 2 in January interprets into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Grayson have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Grayson have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Grayson, NC
- Average high temperature in January: 38.8°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
Grayson, NC
- 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 (29.99"Hg).
Average wind speed in January
Grayson, NC
- Average wind speed in January: 7.7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
Grayson, NC
- Average humidity in January: 79%
The months with the highest relative humidity are February, March and December (80%).
The month with the lowest relative humidity is November (76%).
Average rainfall in January
Grayson, NC
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is February (3.31").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in January
Grayson, NC
- Average rainfall days in January: 12.8 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in January
Grayson, NC
- Average snowfall in January: 4.45"
The month with the highest snowfall is December (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grayson, NC
- Average snowfall days in January: 9.9 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grayson, NC
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Grayson, NC
- Average sunshine days in January: 11.7 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is February (8.9 days).
Average UV index in January
Grayson, NC
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Grayson, NC
- Average cloud cover in January: 54
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June, July and August (Cloud cover 37).
Average visibility in January
Grayson, NC
- Average visibility in January: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Grayson, North Carolina, USA
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