Kentucky Frost Dates & Growing Zones by City
Louisville is our only Kentucky city with frost dates so far: typical (50%) last spring frost Apr 6, typical frost-free season 209 days.
On the 2023 USDA hardiness map, these cities fall in zones 6b and 7a.
Each city's dates come from the nearest NOAA station that passes our quality rules. The methodology explains how we pick it.
| City | Last frost (50%) | First frost (50%) | Season (days, 50%) | Zone 2023 | Confidence | Planting calendar |
|---|---|---|---|---|---|---|
| Louisville frost dates | Apr 6 | Nov 1 | 209 | 6b–7a | High | Louisville planting calendar |
Station match, data and rules: methodology. Long-term odds, not a forecast.