Lake County, Montana
Local growing conditions for Lake 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 Lake County
Lake County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Lake County for its live forecast, frost dates, and planting calendar:
Charlo 59824
Pablo 59855
Jette 59860
Ravalli 59863
Ronan 59864
St. Ignatius 59865
Lindisfarne 59910
Swan Lake 59911
Dayton 59914
Elmo 59915
Lake Mary Ronan 59929
Rollins 59931
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.