Natrona County, Wyoming
Local growing conditions for Natrona 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 Natrona County
Natrona County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Natrona County for its live forecast, frost dates, and planting calendar:
Edgerton 82635
Midwest 82643
Antelope Hills 82601
Vista West 82604
Casper Mountain 82609
Alcova 82620
Meadow Acres 82636
Powder River 82638
Mills 82644
Powder River 82646
Powder River 82648
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.