Yellowstone County, Montana
Local growing conditions for Yellowstone 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 Yellowstone County
Yellowstone County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Yellowstone County for its live forecast, frost dates, and planting calendar:
Billings 59102
Mountain View Colony 59002
Ballantine 59006
Broadview 59015
Custer 59024
Huntley 59037
Laurel 59044
Shepherd 59079
Nibbe 59088
Billings 59101
Billings 59105
Billings 59106
More for Montana
- Agriculture in Montana
- Frost dates across Montana
- 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.