Slope County, North Dakota
Local growing conditions for Slope County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 2 ZIP codes in our data.
Hardiness zones in Slope County
Slope County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Slope County for its live forecast, frost dates, and planting calendar:
More for North Dakota
- Agriculture in North Dakota
- Frost dates across North Dakota
- USDA hardiness zones explained
- Planting calendar by ZIP code
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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.