Frost dates in Hamilton County, Tennessee
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The average last spring frost in Hamilton County falls Mar 24 to Apr 7 and the average first fall frost Oct 29 to Nov 9, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7b to 8a. Places: Apison, Chattanooga, Collegedale, East Ridge, Harrison, Lookout Mountain. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 37302 | Apison | Mar 24 | Nov 9 | 8a |
| 37308 | Apr 4 | Oct 31 | 7b | |
| 37315 | Collegedale | Mar 24 | Nov 9 | 8a |
| 37336 | Apr 6 | Oct 30 | 7b | |
| 37341 | Harrison | Apr 7 | Oct 29 | 8a |
| 37343 | Chattanooga | Apr 7 | Oct 29 | 8a |
| 37350 | Lookout Mountain | Mar 31 | Nov 6 | 7b |
| 37351 | Chattanooga | Mar 24 | Nov 9 | 8a |
| 37363 | Collegedale | Mar 24 | Nov 9 | 8a |
| 37373 | Sale Creek | Apr 4 | Oct 31 | 7b |
| 37377 | Signal Mountain | Mar 26 | Nov 8 | 7b |
| 37379 | Mowbray Mountain | Apr 7 | Oct 29 | 7b |
| 37402 | Chattanooga | Mar 31 | Nov 6 | 8a |
| 37403 | Chattanooga | Mar 31 | Nov 6 | 8a |
| 37404 | Chattanooga | Mar 24 | Nov 9 | 8a |
| 37406 | Chattanooga | Mar 24 | Nov 9 | 8a |
| 37407 | Chattanooga | Mar 31 | Nov 6 | 8a |
| 37408 | Chattanooga | Mar 31 | Nov 6 | 8a |
| 37409 | Chattanooga | Mar 31 | Nov 6 | 8a |
| 37410 | Chattanooga | Mar 31 | Nov 6 | 8a |
| 37411 | Chattanooga | Mar 24 | Nov 9 | 8a |
| 37412 | East Ridge | Mar 24 | Nov 9 | 8a |
| 37415 | Chattanooga | Mar 24 | Nov 9 | 8a |
| 37416 | Chattanooga | Mar 24 | Nov 9 | 8a |
| 37421 | Chattanooga | Mar 24 | Nov 9 | 8a |
| 37450 | Chattanooga | Mar 31 | Nov 6 | 8a |
Nearby counties
Bradley County Marion County Sequatchie County Bledsoe County Grundy County Polk County
All Tennessee counties · Download Tennessee frost dates (CSV)
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