Current Weather and Forecast in Knoxville, TN

Tennessee, United States 🇺🇸
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About the weather in Knoxville

Knoxville has a humid subtropical climate. July is the warmest month, with average highs of 88°, and January the coldest, when nights fall to around 31°. February brings the most rain, on about 12 days, while June is the sunniest, with 11.9 hours of sunshine a day. Over a whole year it rains on roughly 134 days.

Knoxville climate guide: monthly averages, seasons and the best time to visit

Common questions

How many rainy days does Knoxville get in a year?
About 134 days bring measurable precipitation, totalling 50.3 inches (1279 mm). That works out at roughly 9.5 mm on an average wet day.
What is the hottest month in Knoxville?
July, averaging 88°F (31°C) by day and 70°F (21°C) overnight. The hottest single day in our 2015-2024 record for this location reached 100°F (38°C).
What is the rainiest month in Knoxville?
February, at 6.0 inches (152 mm) over about 12 days. October is the driest month, at 3.2 inches (82 mm).
Which month is coolest in Knoxville?
January, with highs of 47°F (9°C) and lows near 31°F (0°C). The coldest day in the 2015-2024 record fell to -1°F (-18°C).
Is there snow in Knoxville?
Yes - about 4 days a year carry measurable snowfall, concentrated December through February.
What is the best time to visit Knoxville?
Aim for September to November and April if you get the choice: warm days, manageable rainfall and plenty of daylight line up, and highs average 71°F (22°C) against roughly 9 wet days a month. For the same question asked the other way round, see where else is warm in September.
What should I wear in Knoxville?
It depends on the month: July runs to 88°F (31°C) while January holds at 47°F (9°C). The full month-by-month breakdown is in the packing notes above.