Weather in Knoxville in July

A hard month. July asks something of you. Go in knowing what. You should expect rain on 19 days of the month, which is more days wet than dry.

July ranks 11 of 12 — near the bottom of Knoxville's year. October is the month that works, and the swing between the two is 39 points, which is a different holiday rather than a slightly better one.

Rain on 19 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 31.5 °C days and 20.6 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 22 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest July day reached 41.1 °C and the coldest night fell to 13.3 °C, and the wettest single day dropped 40 mm — roughly 29% of the month's rain in one day.

July is one of the reliable ones — rainfall has stayed between 92 mm and 199 mm across all twenty years, a narrow enough band that the 140 mm average is something you can plan against rather than merely quote.

Wind is light at 2.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.

How July sits in the year

Temperatures hold steady either side: 29.7 °C in June, 31.5 here, 31.9 in August. Nothing about the timing within the month matters much.

Daylight in July

July is at or near the longest days of Knoxville's year: 14.4 hours of daylight, losing 0.5 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

An inland climate

With no coast nearby, the year swings a fair way — 33.1 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Knoxville versus nearby

If Knoxville is one option among several, the nearby comparison is worth making. Atlanta is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Nashville is close enough to be a coin toss — within a degree on temperature, 2 days less rain.

So: July is a compromise. October is 36 points better and is what Knoxville is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Knoxville

See all twelve months in Knoxville, or where else to go in July.