Allegheny County, Pennsylvania
Local growing conditions for Allegheny County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 103 ZIP codes in our data.
Hardiness zones in Allegheny County
Allegheny County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Allegheny County for its live forecast, frost dates, and planting calendar:
Bairdford 15006
Bakerstown 15007
Brackenridge 15014
Bradford Woods 15015
Bridgeville 15017
Buena Vista 15018
Bunola 15020
Russellton 15024
Jefferson Hills 15025
Coulter 15028
Arnold 15030
Cecil-Bishop 15031
Dravosburg 15034
East McKeesport 15035
Blaine Hill 15037
Gibsonia 15044
Glassport 15045
Leetsdale 15046
Greenock 15047
Harwick 15049
Dorseyville 15051
Leetsdale 15056
Bridgeville 15064
Natrona Heights 15065
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.