Fremont County, Wyoming
Local growing conditions for Fremont County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 12 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:
Atlantic City 82520
Jeffrey City 82310
Riverton 82501
Ethete 82510
Fort Washakie 82512
Dubois 82513
Fort Washakie 82514
Hudson 82515
Johnstown 82516
Pavillion 82523
Shoshoni 82642
Shoshoni 82649
More for Wyoming
- Agriculture in Wyoming
- Frost dates across Wyoming
- 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.