January weather forecast
Knoxville, TN

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The scenic scape of the little town of Knoxville in Tennessee
The scenic scape of the little town of Knoxville in Tennessee

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

January is the month that records the lowest temperatures in Knoxville, with averages ranging from a high of 44.8°F (7.1°C) to a low 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, Tennessee, 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 January, it is snowing for 3.8 days. Throughout January, 0.87" (22mm) of snow is accumulated. Throughout the year, in Knoxville, Tennessee, there are 11.5 snowfall days, and 3.94" (100mm) of snow is accumulated.

Daylight

In Knoxville, 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 in Knoxville.

UV index

The months with the lowest UV index in Knoxville are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What month is the coldest in Knoxville?

The month of January, characterized by an average high of 44.8°F (7.1°C) and a low of 29.3°F (-1.5°C), is recognized as the coldest in Knoxville.

What are January temperatures in Knoxville?

January temperatures vary between a high-temperature of 44.8°F (7.1°C) and a low-temperature of 29.3°F (-1.5°C).

What is the average humidity in January in Knoxville?

The average relative humidity in January in Knoxville, Tennessee, is 76%.

How many days does it rain in January in Knoxville?

In Knoxville, Tennessee, during January, the rain falls for 10.9 days and regularly aggregates up to 2.48" (63mm) of precipitation.

How much does it snow in Knoxville in January?

In Knoxville, Tennessee, in January, snow falls for 3.8 days, with typically accumulated 0.87" (22mm) of snow.

How many hours of daylight does Knoxville have in January?

In Knoxville, Tennessee, the average day length in January is 10h and 3min.

What time are sunrise and sunset in January in Knoxville?

In January, on the first day of the month, sunrise is at 7:46 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:01 pm EST.

What is the month with the least sunshine in Knoxville?

The month with the least sunshine in Knoxville, Tennessee, is January, with an average of 4.9h of sunshine.

How many hours of sunshine does Knoxville have in January?

In Knoxville, the average sunshine duration in January is 4.9h.

When is the lowest UV index in Knoxville?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Knoxville.

What is the UV index intensity in January in Knoxville?

In Knoxville, Tennessee, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Knoxville, TN

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).

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Average pressure in January
Knoxville, TN

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).

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Average wind speed in January
Knoxville, TN

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).

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Average humidity in January
Knoxville, TN

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%).

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Average rainfall in January
Knoxville, TN

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").

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Average rainfall days in January
Knoxville, TN

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).

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Average snowfall in January
Knoxville, TN

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").

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Average snowfall days in January
Knoxville, TN

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).

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Average daylight in January /
Average sunshine in January
Knoxville, TN

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 5min

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).

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Average sunshine days in January
Knoxville, TN

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).

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Average UV index in January
Knoxville, TN

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).

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Average cloud cover in January
Knoxville, TN

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).

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Average visibility in January
Knoxville, TN

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).

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Knoxville, Tennessee, USA

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