Jefferson County, Pennsylvania
Local growing conditions for Jefferson County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 24 ZIP codes in our data.
Hardiness zones in Jefferson County
Jefferson County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Jefferson County for its live forecast, frost dates, and planting calendar:
Punxsutawney 15711
Big Run 15715
Worthville 15730
Punxsutawney 15733
Punxsutawney 15744
Punxsutawney 15764
Punxsutawney 15767
Worthville 15770
Worthville 15776
Timblin 15778
Punxsutawney 15780
Punxsutawney 15781
Worthville 15784
Brockway 15824
Brookville 15825
Corsica 15829
Falls Creek 15840
Brookville 15847
Reynoldsville 15851
Marienville 15860
Sykesville 15863
Summerville 15864
Sykesville 15865
Hawthorn 16240
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.