Washington County, Pennsylvania
Local growing conditions for Washington County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 56 ZIP codes in our data.
Hardiness zones in Washington County
Washington County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Washington County for its live forecast, frost dates, and planting calendar:
Atlasburg 15004
Bulger 15019
Langeloth 15021
California 15022
Donora 15033
Elrama 15038
Joffre 15053
Slovan 15054
Lawrence 15055
McDonald 15057
Midway 15060
Monongahela 15063
New Eagle 15067
Slovan 15078
Washington 15301
Marianna 15311
West Middletown 15312
Beallsville 15313
Bentleyville 15314
Southpointe 15317
Cecil-Bishop 15321
Claysville 15323
Cokeburg 15324
Green Hills 15329
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.