Porter County, Indiana
Local growing conditions for Porter County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 9 ZIP codes in our data.
Hardiness zones in Porter County
Porter County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Porter County for its live forecast, frost dates, and planting calendar:
Valparaiso 46383
Beverly Shores 46301
Boone Grove 46302
Chesterton 46304
Hebron 46341
Kouts 46347
Portage 46368
Shorewood Forest 46385
Wheeler 46393
More for Indiana
- Agriculture in Indiana
- Frost dates across Indiana
- USDA hardiness zones explained
- Planting calendar by ZIP code
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.