Climate and monthly weather forecast
Knoxville, TN

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

January, the same as December, in Knoxville, Tennessee, is a frosty winter month, with an average temperature fluctuating between 44.8°F (7.1°C) and 29.3°F (-1.5°C). The coldest month is January, with an average high-temperature of 44.8°F (7.1°C) and an average low-temperature of 29.3°F (-1.5°C). Weather in January »

Weather in February

February, the last month of the winter in Knoxville, is also a frosty month, with an average temperature ranging between min 33.4°F (0.8°C) and max 49.6°F (9.8°C). In Knoxville, the average high-temperature in February is practically the same as in January - a still frosty 49.6°F (9.8°C). Weather in February »

Weather in March

March, the first month of the spring in Knoxville, is a moderate month, with an average temperature varying between 40.1°F (4.5°C) and 58.1°F (14.5°C). In March, the average high-temperature marginally rises from a chilly 49.6°F (9.8°C) in February to a mild 58.1°F (14.5°C). Weather in March »

Weather in April

April is a pleasant spring month in Knoxville, Tennessee, with an average temperature varying between 48°F (8.9°C) and 69.3°F (20.7°C). In April, the average high-temperature increases from a mild 58.1°F (14.5°C) in March to a pleasant 69.3°F (20.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Knoxville, Tennessee, with an average temperature fluctuating between 55.9°F (13.3°C) and 78.4°F (25.8°C). In Knoxville, the average high-temperature in May rises from an agreeable 69.3°F (20.7°C) in April to a warm 78.4°F (25.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a hot month in Knoxville, Tennessee, with an average temperature ranging between min 63°F (17.2°C) and max 86°F (30°C). In June, the average high-temperature marginally rises from a moderately hot 78.4°F (25.8°C) in May to a tropical 86°F (30°C). Weather in June »

Weather in July

July, the same as June, in Knoxville, Tennessee, is another tropical summer month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 88.9°F (31.6°C). The warmest month is July, with an average high-temperature of 88.9°F (31.6°C) and an average low-temperature of 66.7°F (19.3°C). The average heat index in July is estimated at an extremely hot 104°F (40°C). Weather in July »

Weather in August

August, the last month of the summer in Knoxville, is another tropical month, with an average temperature varying between 88.2°F (31.2°C) and 65.5°F (18.6°C). In August, the average high-temperature is almost the same as in July - a still hot 88.2°F (31.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Knoxville, is still a warm month, with an average temperature ranging between max 82.2°F (27.9°C) and min 59.9°F (15.5°C). In Knoxville, the average high-temperature in September slightly decreases from a hot 88.2°F (31.2°C) in August to a moderately hot 82.2°F (27.9°C). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Knoxville, Tennessee, with an average temperature fluctuating between 69.4°F (20.8°C) and 49.1°F (9.5°C). In October, the average high-temperature drops from a moderately hot 82.2°F (27.9°C) in September to a pleasant 69.4°F (20.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderate month in Knoxville, Tennessee, with temperature in the range of an average low of 39.2°F (4°C) and an average high of 57.2°F (14°C). In Knoxville, the average high-temperature in November decreases from a pleasant 69.4°F (20.8°C) in October to a moderate 57.2°F (14°C). Weather in November »

Weather in December

December, the first month of the winter in Knoxville, is also a frosty month, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 35.1°F (1.7°C). In Knoxville, Tennessee, the average high-temperature in December marginally drops from a moderate 57.2°F (14°C) in November to a frosty 49.1°F (9.5°C). Weather in December »
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FAQ

What is the coldest month in Knoxville?

With an average high-temperature of 44.8°F (7.1°C) and an average low-temperature of 29.3°F (-1.5°C), January is the coldest month.

How much does it rain in Knoxville?

In Knoxville, Tennessee, during the entire year, the rain falls for 148.9 days and collects up to 29.57" (751mm) of precipitation.

When does it snow in Knoxville?

January through April, November and December are months with snowfall.

How many days does it snow in Knoxville?

Throughout the year, in Knoxville, Tennessee, there are 11.5 snowfall days, and 3.94" (100mm) of snow is accumulated.

What is the month with the least sunshine in Knoxville?

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

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, Tennessee.

What is the most humid month in Knoxville?

The months with the highest humidity in Knoxville are February and December, with an average relative humidity of 78%.

What is the wettest month in Knoxville?

February is the month with the most rainfall in Knoxville. Rain falls for 11.2 days and accumulates 3.66" (93mm) of precipitation.

When does it snow the most in Knoxville?

February is the month with the most snowfall in Knoxville. Snow falls for 3.3 days and accumulates 1.57" (40mm) of snow.

When is Daylight Saving Time (DST) in Knoxville?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Knoxville?

In Knoxville, Tennessee, snow does not fall in May through October.

What is the month with the highest UV index in Knoxville?

The months with the highest UV index in Knoxville, Tennessee, are May through August, with an average maximum UV index of 6.

When are the longest days in Knoxville?

The month with the longest days in Knoxville is June, with an average of 14h and 34min of daylight.

What month has the most sunshine in Knoxville?

June has the most sunshine of the year in Knoxville, Tennessee, with an average of 10.6h of sunshine.

What is the warmest month in Knoxville?

With an average high-temperature of 88.9°F (31.6°C) and an average low-temperature of 66.7°F (19.3°C), July is the warmest month in Knoxville, Tennessee.

What is the least humid month in Knoxville?

The least humid month is August, with an average relative humidity of 70%.

What is the driest month in Knoxville?

September is the month with the least rainfall in Knoxville, Tennessee. Rain falls for 11.3 days and accumulates 1.5" (38mm) of precipitation.

What is the month with the shortest days in Knoxville?

With an average of 9h and 46min of daylight, December has the shortest days of the year.

Average temperature
Knoxville, TN

Average temperature - Knoxville, TN

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).

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
Knoxville, TN

Average pressure - Knoxville, TN

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
Knoxville, TN

Average wind speed - Knoxville, TN

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
Knoxville, TN

Average humidity - Knoxville, TN

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
Knoxville, TN

Average rainfall - Knoxville, TN

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
Knoxville, TN

Average rainfall days - Knoxville, TN

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
Knoxville, TN

Average snowfall - Knoxville, TN

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
Knoxville, TN

Average snowfall days - Knoxville, TN

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 / Average sunshine
Knoxville, TN

Average daylight / Average sunshine - Knoxville, TN

The month with the longest days is June (Average daylight: 14h and 34min).
The month with the shortest days is December (Average daylight: 9h and 46min).

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
Knoxville, TN

Average sunshine days - Knoxville, TN

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
Knoxville, TN

Average UV index - Knoxville, TN

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 visibility
Knoxville, TN

Average visibility - Knoxville, TN

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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