Frost dates in Forest County, Pennsylvania
The average last spring frost in Forest County falls May 1 to May 13 and the average first fall frost Oct 7 to Oct 25, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a. Places: Marienville, Tionesta. 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 |
|---|---|---|---|---|
| 15828 | May 13 | Oct 7 | 6a | |
| 16217 | May 13 | Oct 7 | 6a | |
| 16239 | Marienville | May 13 | Oct 7 | 6a |
| 16321 | May 1 | Oct 25 | 6a | |
| 16322 | May 1 | Oct 25 | 6a | |
| 16353 | Tionesta | May 1 | Oct 25 | 6a |
| 16370 | May 1 | Oct 25 | 6a |
Nearby counties
Clarion County Warren County Venango County Jefferson County Elk County McKean County
All Pennsylvania counties · Download Pennsylvania frost dates (CSV)
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