Fremont County, Colorado
Local growing conditions for Fremont 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 Fremont County
Fremont County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Fremont County for its live forecast, frost dates, and planting calendar:
Park Center 81212
Coal Creek 81221
Coaldale 81222
Cotopaxi 81223
Florence 81226
Coaldale 81232
Howard 81233
Penrose 81240
Rockvale 81244
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.