Tennessee frost dates by city
| City | Last frost (50%) | Safer date (10%) | First frost (50%) | Season |
|---|---|---|---|---|
| Chattanooga | Mar 24 | Apr 8 | Nov 9 | 230 days |
| Knoxville | Apr 1 | Apr 17 | Nov 2 | 215 days |
| Nashville | Mar 31 | Apr 16 | Nov 3 | 217 days |
Each city uses its nearest major NOAA weather station, usually the airport. Valleys, hilltops and rural spots can differ from it by one to three weeks. How to read these dates.