Knoxville, TN Weather by Month and Climate Averages

How much rain does Knoxville get?

Knoxville gets 55.8 in of precipitation in an average year, spread over about 126 days with measurable rain. That is more rainy days than 83% of the US.

December is the wettest month, with 5.9 in. October is the driest, with 3.0 in. March has the most rainy days, about 13.

The longest dry spell in the last five years lasted 29 days, to October 12, 2022.

See where Knoxville ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Tennessee.

Does it snow in Knoxville?

The snowiest winter on record is 1970–71, with 24.6 in.

The most recent measurable snow at the station fell on March 16, 2026.

See where Knoxville ranks: snowiest cities in the US.

Knoxville weather by month

Knoxville weather in January

In January, Knoxville averages a high of 48°F and a low of 27°F. It gets 5.2 in of precipitation over about 12 rainy days. The sun is out about 35% of daylight hours. The January record high is 78°F (2022) and the record low is -20°F (1985).

Knoxville weather in February

In February, Knoxville averages a high of 52°F and a low of 30°F. It gets 5.1 in of precipitation over about 11 rainy days. The sun is out about 37% of daylight hours. The February record high is 82°F (2018) and the record low is -12°F (1996).

Knoxville weather in March

In March, Knoxville averages a high of 61°F and a low of 36°F. It gets 5.3 in of precipitation over about 13 rainy days. The sun is out about 38% of daylight hours. The March record high is 86°F (2012) and the record low is 2°F (1993).

Knoxville weather in April

In April, Knoxville averages a high of 71°F and a low of 45°F. It gets 5.3 in of precipitation over about 11 rainy days. The sun is out about 46% of daylight hours. The April record high is 90°F (1986) and the record low is 21°F (2007). April is one of the most comfortable months to visit.

Knoxville weather in May

In May, Knoxville averages a high of 78°F and a low of 55°F. It gets 4.5 in of precipitation over about 12 rainy days. The sun is out about 38% of daylight hours. The May record high is 93°F (2018) and the record low is 30°F (2020). May is one of the most comfortable months to visit.

Knoxville weather in June

In June, Knoxville averages a high of 85°F and a low of 63°F. It gets 4.0 in of precipitation over about 10 rainy days. The sun is out about 44% of daylight hours. The June record high is 101°F (2012) and the record low is 42°F (1984).

Knoxville weather in July

In July, Knoxville averages a high of 88°F and a low of 67°F. It gets 5.8 in of precipitation over about 12 rainy days. The sun is out about 40% of daylight hours. The July record high is 105°F (2012) and the record low is 48°F (1988).

Knoxville weather in August

In August, Knoxville averages a high of 88°F and a low of 66°F. It gets 3.4 in of precipitation over about 9 rainy days. The sun is out about 48% of daylight hours. The August record high is 102°F (2007) and the record low is 50°F (1982).

Knoxville weather in September

In September, Knoxville averages a high of 83°F and a low of 59°F. It gets 4.1 in of precipitation over about 8 rainy days. The sun is out about 52% of daylight hours. The September record high is 97°F (2011) and the record low is 37°F (1983).

Knoxville weather in October

In October, Knoxville averages a high of 72°F and a low of 47°F. It gets 3.0 in of precipitation over about 8 rainy days. The sun is out about 57% of daylight hours. The October record high is 95°F (2019) and the record low is 23°F (1976). October is one of the most comfortable months to visit.

Knoxville weather in November

In November, Knoxville averages a high of 60°F and a low of 36°F. It gets 4.1 in of precipitation over about 9 rainy days. The sun is out about 50% of daylight hours. The November record high is 84°F (2016) and the record low is 15°F (1991).

Knoxville weather in December

In December, Knoxville averages a high of 51°F and a low of 30°F. It gets 5.9 in of precipitation over about 11 rainy days. The sun is out about 38% of daylight hours. The December record high is 78°F (1982) and the record low is -5°F (1983).

Sunshine, humidity and wind in Knoxville

October is the sunniest month in Knoxville, with sunshine about 57% of daylight hours. January is the cloudiest, at 35%. Over the year the sun shines about 44% of daylight hours. Knoxville is cloudier than 70% of the US.

Humidity peaks in August at 72% and is lowest in March at 59%.

Knoxville has about 32 days a year above 90°F. Knoxville is hotter than 53% of the US.

See where Knoxville ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

First and last freeze in Knoxville

The first fall freeze in Knoxville typically comes around October 28, and the last spring freeze around April 10. That leaves a frost-free growing season of about 201 days.

Knoxville weather records

The hottest temperature on record at the Knoxville station is 105°F, on July 1, 2012. The coldest is -20°F, on January 21, 1985.

The wettest day on record brought 6.7 in of rain, on September 18, 2012.

42 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.8°F per decade since 1982.

The best time to visit Knoxville

The most comfortable time to visit is typically April to May and October, when daytime highs sit near 74°F.

Winter (December–February) is chilly, with average highs around 50°F and lows near 29°F. Snow is possible.

Spring (March–May) is warm, with average highs around 70°F and lows near 45°F.

Summer (June–August) is hot, with average highs around 87°F and lows near 65°F. It can feel humid.

Autumn (September–November) is warm, with average highs around 72°F and lows near 47°F.

Knoxville climate questions

How much rain does Knoxville get?

Knoxville gets 55.8 in of precipitation in an average year, over about 126 rainy days.

What is the wettest month in Knoxville?

December is the wettest month in Knoxville, with 5.9 in. October is the driest, with 3.0 in.

How many rainy days does Knoxville have a year?

Knoxville has about 126 days with measurable rain in an average year. March has the most, about 13.

What is the hottest month in Knoxville?

July is the warmest month in Knoxville, with an average high of 88°F.

What is the coldest month in Knoxville?

January is the coldest month in Knoxville, with an average low of 27°F.

What is the record high temperature in Knoxville?

The record high at the Knoxville station is 105°F, set on July 1, 2012. The record low is -20°F, on January 21, 1985.

What is the sunniest month in Knoxville?

October is the sunniest month in Knoxville, with sunshine about 57% of daylight hours. January is the cloudiest.

When is the first frost in Knoxville?

The first fall freeze in Knoxville typically comes around October 28. The last spring freeze is around April 10.

What is the best time to visit Knoxville?

The most comfortable time to visit is typically April to May and October, when daytime highs sit near 74°F.