Dauphin County, Pennsylvania
Local growing conditions for Dauphin County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 26 ZIP codes in our data.
Hardiness zones in Dauphin County
Dauphin County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Dauphin County for its live forecast, frost dates, and planting calendar:
Harrisburg 17103
Berrysburg 17005
Linglestown 17018
Berrysburg 17023
Gratz 17030
Elizabethville 17032
Hershey 17033
Highspire 17034
Hummelstown 17036
Wiconsico 17048
Middletown 17057
Millersburg 17061
Pillow 17080
Wiconsico 17097
Williamstown 17098
Harrisburg 17101
Harrisburg 17102
Harrisburg 17104
Progress 17109
Harrisburg 17110
Rutherford 17111
Linglestown 17112
Bressler 17113
Harrisburg 17120
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.