Frost dates · Kentucky
When is the first frost in Louisville?
Louisville right now
44°FClear skies
- Today46°F / 39°FClouds
- Tomorrow49°F / 32°FClear skies
- Monday50°F / 34°FClear skies
Weather's doing its best. Allegedly.
Live from OpenWeatherMap. Alerts from the National Weather Service.
In a typical year, Louisville’s first frost comes around November 7 and its last around March 31.
One year in ten the first frost comes as early as October 28, and nine years in ten it has arrived by November 23. One year in ten the last frost is over as early as March 14, and nine years in ten it is over by April 16. Louisville averages about 74 nights a year at 32°F or colder, with about 222 frost-free days in between in a typical year. It’s frost season here, and the last frost usually comes around March 31. That makes it the 32nd latest first frost of the 117 cities we track where it freezes most years.
Last updated
A freeze is in the forecast for the next 48 hours.
Louisville’s last frost is usually gone by the end of March, so spring is fully dressed well before Derby day.
Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Frost dates, early, typical and late years
| Early year (1 in 10) | Typical | Late year (1 in 10) | |
|---|---|---|---|
| First frost | October 28 | November 7 | November 23 |
| Last frost | March 14 | March 31 | April 16 |
A frost date here is a night when the official thermometer reads 32°F or colder. Frost on the ground can show up on clear, calm nights a few degrees milder.
Cities with about the same first frost
- Columbia, South Carolina: first frost around November 7
- Boston, Massachusetts: first frost around November 9
- Chattanooga, Tennessee: first frost around November 9
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00093821.