January weather forecastKnoxville, TN
January
Weather in January
Ever-climbing pressure trends distinguish Knoxville weather for January. Temperatures can be quite chilly in comparison to December, and locals feel the bite of winter with the lowest average temperatures of the year being 29.3°F (-1.5°C). It is the first truly winter month and snowfall is expected. Average sunshine hours are at their minimum, making January the month with the least daylight in Knoxville. The cold, fewer daylight hours, and snow cover make January a true winter month in Knoxville, Tennessee.Temperature
Knoxville experiences its lowest average temperatures in January, reaching a peak of 44.8°F (7.1°C) and a minimum of 29.3°F (-1.5°C).Humidity
The average relative humidity in January is 76%.Rainfall
In January, the rain falls for 10.9 days. Throughout January, 2.48" (63mm) of precipitation is accumulated. In Knoxville, during the entire year, the rain falls for 148.9 days and collects up to 29.57" (751mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Knoxville, Tennessee, during January, snow falls for 3.8 days and regularly aggregates up to 0.87" (22mm) of snow. In Knoxville, during the entire year, snow falls for 11.5 days and aggregates up to 3.94" (100mm) of snow.Daylight
The average length of the day in January is 10h and 3min.On the first day of the month, sunrise is at 7:46 am and sunset at 5:32 pm. On the last day of January, sunrise is at 7:37 am and sunset at 6:01 pm EST.
Sunshine
With an average of 4.9h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Knoxville, TN
- Average high temperature in January: 44.8°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in January: 29.3°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in January
Knoxville, TN
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Knoxville, TN
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Knoxville, TN
- Average humidity in January: 76%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall in January
Knoxville, TN
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in January
Knoxville, TN
- Average rainfall days in January: 10.9 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in January
Knoxville, TN
- Average snowfall in January: 0.87"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Knoxville, TN
- Average snowfall days in January: 3.8 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Knoxville, TN
- 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 48min).
- Average sunshine in January: 4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in January
Knoxville, TN
- Average sunshine days in January: 17 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in January
Knoxville, TN
- 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
Knoxville, TN
- Average cloud cover in January: 50
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in January
Knoxville, TN
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
