Morgan County, Tennessee
Local growing conditions for Morgan County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 9 ZIP codes in our data.
Hardiness zones in Morgan County
Morgan County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Morgan County for its live forecast, frost dates, and planting calendar:
Coalfield 37719
Sunbright 37726
Elgin 37733
Wartburg 37770
Oakdale 37829
Oliver Springs 37840
Petros 37845
Sunbright 37872
Wartburg 37887
More for Tennessee
- Agriculture in Tennessee
- Frost dates across Tennessee
- 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.