Park County, Colorado
Local growing conditions for Park County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 10 ZIP codes in our data.
Hardiness zones in Park County
Park County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Park County for its live forecast, frost dates, and planting calendar:
Alma 80420
Brook Forest 80421
Fairplay 80432
Fairplay 80440
Montezuma 80448
Hartsel 80449
Fairplay 80456
Brook Forest 80475
Guffey 80820
Florissant 80827
More for Colorado
- Agriculture in Colorado
- Frost dates across Colorado
- 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.