Frost dates in Butler County, Pennsylvania
The average last spring frost in Butler County falls Apr 21 to May 7 and the average first fall frost Oct 14 to Oct 30, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Bruin, Callery, Chicora, Connoquenessing, East Butler, Eau Claire. 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 |
|---|---|---|---|---|
| 16001 | Shanor-Northvue | May 7 | Oct 14 | 6a |
| 16002 | Nixon | May 7 | Oct 14 | 6a |
| 16020 | May 7 | Oct 14 | 6a | |
| 16022 | Bruin | May 7 | Oct 14 | 6a |
| 16023 | May 7 | Oct 14 | 6a | |
| 16024 | Callery | May 7 | Oct 14 | 6b |
| 16025 | Chicora | May 7 | Oct 14 | 6a |
| 16027 | Connoquenessing | May 7 | Oct 14 | 6b |
| 16029 | East Butler | May 7 | Oct 14 | 6a |
| 16030 | Eau Claire | May 7 | Oct 14 | 6a |
| 16033 | Evans City | May 7 | Oct 14 | 6b |
| 16034 | May 7 | Oct 14 | 6a | |
| 16035 | May 7 | Oct 14 | 6a | |
| 16037 | Harmony | May 7 | Oct 14 | 6b |
| 16038 | Harrisville | May 7 | Oct 14 | 6a |
| 16040 | May 7 | Oct 14 | 6a | |
| 16041 | Karns City | May 7 | Oct 14 | 6a |
| 16045 | Homeacre-Lyndora | May 7 | Oct 14 | 6b |
| 16046 | Seven Fields | May 7 | Oct 14 | 6b |
| 16048 | May 7 | Oct 14 | 6a | |
| 16050 | Petrolia | May 7 | Oct 14 | 6a |
| 16051 | Portersville | May 7 | Oct 14 | 6a |
| 16052 | Prospect | May 7 | Oct 14 | 6a |
| 16053 | May 7 | Oct 14 | 6b | |
| 16055 | Apr 21 | Oct 30 | 6b | |
| 16056 | Saxonburg | May 7 | Oct 14 | 6b |
| 16057 | West Liberty | May 7 | Oct 14 | 6a |
| 16059 | Valencia | May 7 | Oct 14 | 6b |
| 16061 | West Sunbury | May 7 | Oct 14 | 6a |
| 16063 | Zelienople | May 7 | Oct 14 | 6b |
| 16066 | May 7 | Oct 14 | 6b |
Nearby counties
Armstrong County Lawrence County Beaver County Allegheny County Mercer County Clarion County
All Pennsylvania counties · Download Pennsylvania frost dates (CSV)
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