Frost dates in Lehigh County, Pennsylvania
The average last spring frost in Lehigh County falls Apr 20 to Apr 26 and the average first fall frost Oct 14 to Oct 24, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b to 7a. Places: Allentown, Ancient Oaks, Bethlehem, Breinigsville, Catasauqua, Coopersburg. 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 |
|---|---|---|---|---|
| 18018 | Bethlehem | Apr 20 | Oct 24 | 7a |
| 18031 | Breinigsville | Apr 26 | Oct 14 | 7a |
| 18032 | Catasauqua | Apr 20 | Oct 24 | 7a |
| 18034 | DeSales University | Apr 21 | Oct 22 | 7a |
| 18036 | Coopersburg | Apr 21 | Oct 22 | 7a |
| 18037 | Coplay | Apr 20 | Oct 24 | 7a |
| 18046 | Apr 26 | Oct 14 | 7a | |
| 18049 | Emmaus | Apr 20 | Oct 24 | 7a |
| 18051 | Apr 26 | Oct 14 | 6b | |
| 18052 | Fullerton | Apr 20 | Oct 24 | 7a |
| 18053 | Apr 26 | Oct 14 | 6b | |
| 18059 | Laurys Station | Apr 20 | Oct 24 | 7a |
| 18062 | Ancient Oaks | Apr 26 | Oct 14 | 7a |
| 18065 | Apr 20 | Oct 24 | 6b | |
| 18066 | New Tripoli | Apr 26 | Oct 14 | 6b |
| 18069 | Apr 26 | Oct 14 | 7a | |
| 18078 | Schnecksville | Apr 20 | Oct 24 | 6b |
| 18079 | Slatedale | Apr 21 | Oct 23 | 6b |
| 18080 | Slatington | Apr 20 | Oct 24 | 6b |
| 18087 | Trexlertown | Apr 26 | Oct 14 | 7a |
| 18092 | Apr 26 | Oct 14 | 7a | |
| 18101 | Allentown | Apr 20 | Oct 24 | 7a |
| 18102 | Allentown | Apr 20 | Oct 24 | 7a |
| 18103 | Allentown | Apr 20 | Oct 24 | 7a |
| 18104 | Allentown | Apr 20 | Oct 24 | 7a |
| 18106 | Wescosville | Apr 26 | Oct 14 | 7a |
| 18109 | Allentown | Apr 20 | Oct 24 | 7a |
| 18195 | Apr 26 | Oct 14 | 7a |
Nearby counties
Northampton County Carbon County Berks County Bucks County Montgomery County Monroe County
All Pennsylvania counties · Download Pennsylvania frost dates (CSV)
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