McKean County, Pennsylvania
Local growing conditions for McKean County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 19 ZIP codes in our data.
Hardiness zones in McKean County
McKean County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in McKean County for its live forecast, frost dates, and planting calendar:
Sheffield 16333
University of Pittsburgh Bradford 16701
Smethport 16724
Lewis Run 16725
Lewis Run 16726
Foster Brook 16727
Rew 16729
Smethport 16730
Eldred 16731
Lewis Run 16732
Mount Jewett 16733
James City 16735
Lewis Run 16738
Mount Jewett 16740
Roulette 16743
Rew 16744
Rew 16745
Smethport 16749
Eldred 16750
More for Pennsylvania
- Agriculture in Pennsylvania
- Frost dates across Pennsylvania
- USDA hardiness zones explained
- Planting calendar by ZIP code
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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.