What is the hottest day ever recorded in Louisville?

Louisville's hottest day on record reached 106°F, set on July 30, 1999. That is the single most extreme high in the nearest long-term weather station's full daily record — about 38°F hotter than a typical year's average high of 68°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 Louisville?

The all-time record high in Louisville is 106°F, recorded on July 30, 1999. 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 Louisville?

Louisville's coldest day on record bottomed out at -22°F, set on January 19, 1994. 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 Louisville?

The all-time record low in Louisville is -22°F, recorded on January 19, 1994. The gap between that and the 106°F record high — a span of 128°F — is the full range of temperatures Louisville has experienced across its long-term daily record.

Is it normal to be this hot in Louisville?

It depends on how far above Louisville's normal a given day runs. A typical year here averages a daily high near 68°F; the all-time record of 106°F (set 1999) sits about 38°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 Louisville set its temperature records?

Louisville's record high of 106°F was set in 1999 (July 30, 1999), and its record low of -22°F in 1994 (January 19, 1994). Both are pulled from the station's complete daily record going back to 1948, so they reflect the true extremes rather than a recent or partial sample.

Has Louisville been getting hotter?

Yes — Louisville's annual mean temperature has trended about 3.6°F warmer since 1948, 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.

Louisville, Kentucky Weather Records

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

Louisville, KY · Today vs. normal

Live temperature unavailable

Louisville’s normal high for June is 86°F. The current reading couldn’t be fetched just now — check back shortly for the live comparison.

Louisville’s all-time temperature records

Hottest day on record: 106°Fset July 30, 1999
Coldest day on record: -22°Fset January 19, 1994

That is a 128°F span between the hottest and coldest days Louisville has ever recorded — the full range of what its weather has done across the station’s record back to 1948.

How extreme Louisville’s weather gets

Louisville’s weather is usually mild by its own standards — a typical year averages a daily high near 68°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 106°F in 1999 — roughly 38°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, Louisville has bottomed out at -22°F (1994). Together the two extremes span 128°F — the full width of what this place’s weather has done across the station’s daily record back to 1948. 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 106°F record is the rare event the record marks.

Frequently asked

What is the hottest day ever recorded in Louisville?: Louisville's hottest day on record reached 106°F, set on July 30, 1999. That is the single most extreme high in the nearest long-term weather station's full daily record — about 38°F hotter than a typical year's average high of 68°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 Louisville?: The all-time record high in Louisville is 106°F, recorded on July 30, 1999. 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 Louisville?: Louisville's coldest day on record bottomed out at -22°F, set on January 19, 1994. 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 Louisville?: The all-time record low in Louisville is -22°F, recorded on January 19, 1994. The gap between that and the 106°F record high — a span of 128°F — is the full range of temperatures Louisville has experienced across its long-term daily record.
Is it normal to be this hot in Louisville?: It depends on how far above Louisville's normal a given day runs. A typical year here averages a daily high near 68°F; the all-time record of 106°F (set 1999) sits about 38°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 Louisville set its temperature records?: Louisville's record high of 106°F was set in 1999 (July 30, 1999), and its record low of -22°F in 1994 (January 19, 1994). Both are pulled from the station's complete daily record going back to 1948, so they reflect the true extremes rather than a recent or partial sample.
Has Louisville been getting hotter?: Yes — Louisville's annual mean temperature has trended about 3.6°F warmer since 1948, 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 Louisville

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