Frost dates in Unicoi County, Tennessee
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The average last spring frost in Unicoi County falls Apr 21 and the average first fall frost Oct 23, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a. Places: Erwin, Unicoi. 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 |
|---|---|---|---|---|
| 37650 | Erwin | Apr 21 | Oct 23 | 7a |
| 37657 | Apr 21 | Oct 23 | 7a | |
| 37692 | Unicoi | Apr 21 | Oct 23 | 7a |
Nearby counties
Washington County Carter County Greene County Sullivan County Hawkins County Cocke County
All Tennessee counties · Download Tennessee frost dates (CSV)
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