What is the hottest day ever recorded in Knoxville?

Knoxville's hottest day on record reached 105°F, set on June 30, 2012. That is the single most extreme high in the nearest long-term weather station's full daily record — about 35°F hotter than a typical year's average high of 70°F, which is why a day like it stands out as genuinely rare rather than just a hot afternoon.

What is the record high temperature in Knoxville?

The all-time record high in Knoxville is 105°F, recorded on June 30, 2012. Records are drawn from the nearest long-term weather station's full daily history, so this is the hottest single day the station has ever logged — not a typical summer peak.

What is the coldest day ever recorded in Knoxville?

Knoxville's coldest day on record bottomed out at -24°F, set on January 21, 1985. Like the record high, it comes from the station's complete daily record, so it captures the most extreme cold the area has recorded rather than an average winter low.

What is the record low temperature in Knoxville?

The all-time record low in Knoxville is -24°F, recorded on January 21, 1985. The gap between that and the 105°F record high — a span of 129°F — is the full range of temperatures Knoxville has experienced across its long-term daily record.

Is it normal to be this hot in Knoxville?

It depends on how far above Knoxville's normal a given day runs. A typical year here averages a daily high near 70°F; the all-time record of 105°F (set 2012) sits about 35°F above that. The anomaly readout at the top of this page compares the current temperature against this month's normal high, so you can see exactly how unusual today is rather than guessing.

When did Knoxville set its temperature records?

Knoxville's record high of 105°F was set in 2012 (June 30, 2012), and its record low of -24°F in 1985 (January 21, 1985). Both are pulled from the station's complete daily record going back to 1910, so they reflect the true extremes rather than a recent or partial sample.

Has Knoxville been getting hotter?

Yes — Knoxville's annual mean temperature has trended about 0.4°F warmer since 1910, in line with the long-term warming seen across nearly every US city. That gradual shift in the average is separate from the all-time records above, which mark the single most extreme days rather than the trend, but a warming baseline is part of why recent years more often brush up against the record-high end.

Knoxville, Tennessee Weather Records

The hottest and coldest days Knoxville has ever recorded — and how today compares to normal

Knoxville, TN · Today vs. normal

16°F below the June normal

Right now it’s 70°F in Knoxville — about 16° below the June normal high of 86°F.

Knoxville’s all-time temperature records

Hottest day on record: 105°Fset June 30, 2012
Coldest day on record: -24°Fset January 21, 1985

That is a 129°F span between the hottest and coldest days Knoxville has ever recorded — the full range of what its weather has done across the station’s record back to 1910.

How extreme Knoxville’s weather gets

Knoxville’s weather is usually mild by its own standards — a typical year averages a daily high near 70°F, and the normal high for June runs about 86°F. The records sit well outside that everyday range. The hottest day on record reached 105°F in 2012 — roughly 35°F above a typical year’s average high, the kind of gap that turns an ordinary summer into a genuine heat event.

At the other end, Knoxville has bottomed out at -24°F (1985). Together the two extremes span 129°F — the full width of what this place’s weather has done across the station’s daily record back to 1910. Those edges are exactly why the anomaly readout at the top of this page is worth a glance: it shows where today falls between the normal and the record, so a hot afternoon can be judged against the real history rather than a hunch. A reading a few degrees over the June normal is ordinary; one pushing toward the 105°F record is the rare event the record marks.

Frequently asked

What is the hottest day ever recorded in Knoxville?: Knoxville's hottest day on record reached 105°F, set on June 30, 2012. That is the single most extreme high in the nearest long-term weather station's full daily record — about 35°F hotter than a typical year's average high of 70°F, which is why a day like it stands out as genuinely rare rather than just a hot afternoon.
What is the record high temperature in Knoxville?: The all-time record high in Knoxville is 105°F, recorded on June 30, 2012. Records are drawn from the nearest long-term weather station's full daily history, so this is the hottest single day the station has ever logged — not a typical summer peak.
What is the coldest day ever recorded in Knoxville?: Knoxville's coldest day on record bottomed out at -24°F, set on January 21, 1985. Like the record high, it comes from the station's complete daily record, so it captures the most extreme cold the area has recorded rather than an average winter low.
What is the record low temperature in Knoxville?: The all-time record low in Knoxville is -24°F, recorded on January 21, 1985. The gap between that and the 105°F record high — a span of 129°F — is the full range of temperatures Knoxville has experienced across its long-term daily record.
Is it normal to be this hot in Knoxville?: It depends on how far above Knoxville's normal a given day runs. A typical year here averages a daily high near 70°F; the all-time record of 105°F (set 2012) sits about 35°F above that. The anomaly readout at the top of this page compares the current temperature against this month's normal high, so you can see exactly how unusual today is rather than guessing.
When did Knoxville set its temperature records?: Knoxville's record high of 105°F was set in 2012 (June 30, 2012), and its record low of -24°F in 1985 (January 21, 1985). Both are pulled from the station's complete daily record going back to 1910, so they reflect the true extremes rather than a recent or partial sample.
Has Knoxville been getting hotter?: Yes — Knoxville's annual mean temperature has trended about 0.4°F warmer since 1910, in line with the long-term warming seen across nearly every US city. That gradual shift in the average is separate from the all-time records above, which mark the single most extreme days rather than the trend, but a warming baseline is part of why recent years more often brush up against the record-high end.

More for Knoxville

See the full Knoxville, TN weather forecast — hour-by-hour outlook, NOAA radar, satellite, and air quality — or the broader Knoxville climate & weather by month for the long-run averages behind these records.