Marengo County, Alabama
Local growing conditions for Marengo County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 10 ZIP codes in our data.
Hardiness zones in Marengo County
Marengo County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Marengo County for its live forecast, frost dates, and planting calendar:
Demopolis 36732
Sweet Water 36736
Faunsdale 36738
Demopolis 36742
Linden 36748
Thomaston 36754
Myrtlewood 36763
Nanafalia 36764
Sweet Water 36782
Thomaston 36783
More for Alabama
- Agriculture in Alabama
- Frost dates across Alabama
- 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.