Chester County, Pennsylvania
Local growing conditions for Chester County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 39 ZIP codes in our data.
Hardiness zones in Chester County
Chester County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Chester County for its live forecast, frost dates, and planting calendar:
Glenmoore 19343
Wayne 19087
Paoli 19301
Atglen 19310
Toughkenamon 19311
Berwyn 19312
Glenmoore 19316
Chadds Ford 19317
South Coatesville 19320
Cochranville 19330
Berwyn 19333
Downingtown 19335
Exton 19341
Honey Brook 19344
Frazer 19345
Kennett Square 19348
North Star 19350
Lincoln University 19352
Malvern 19355
Modena 19358
Nottingham 19362
Oxford 19363
Parkesburg 19365
Pomeroy 19367
More for Pennsylvania
- Agriculture in Pennsylvania
- Frost dates across Pennsylvania
- USDA hardiness zones explained
- Planting calendar by ZIP code
← All counties in Pennsylvania
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.