Ada County, Idaho
Local growing conditions for Ada County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 16 ZIP codes in our data.
Hardiness zones in Ada County
Ada County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Ada County for its live forecast, frost dates, and planting calendar:
Boise City 83705
Eagle 83616
Kuna 83634
Meridian 83642
Meridian 83646
Star 83669
Boise City 83702
Boise City 83703
Boise City 83704
Boise City 83706
Boise City 83709
Boise City 83712
Boise City 83713
Hidden Springs 83714
Boise City 83720
Boise City 83725
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.