Frost dates in Boone County, Indiana
The average last spring frost in Boone County falls Apr 21 to Apr 27 and the average first fall frost Oct 12 to Oct 20, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a. Places: Advance, Jamestown, Lebanon, Thorntown, Whitestown, Zionsville. 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 |
|---|---|---|---|---|
| 46052 | Lebanon | Apr 21 | Oct 20 | 6a |
| 46071 | Thorntown | Apr 27 | Oct 12 | 6a |
| 46075 | Whitestown | Apr 21 | Oct 20 | 6a |
| 46077 | Zionsville | Apr 21 | Oct 20 | 6a |
| 46102 | Advance | Apr 23 | Oct 19 | 6a |
| 46147 | Jamestown | Apr 23 | Oct 19 | 6a |
Nearby counties
Hendricks County Clinton County Hamilton County Montgomery County Marion County Tipton County
All Indiana counties · Download Indiana frost dates (CSV)
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