Canyon County, Idaho
Local growing conditions for Canyon 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 Canyon County
Canyon County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Canyon County for its live forecast, frost dates, and planting calendar:
Parma 83660
Caldwell 83605
Notus 83607
Greenleaf 83626
Middleton 83644
Nampa 83651
Notus 83656
Wilder 83676
Nampa 83686
Nampa 83687
More for Idaho
- Agriculture in Idaho
- Frost dates across Idaho
- 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.