Grant County, Indiana
Local growing conditions for Grant 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 Grant County
Grant County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Grant County for its live forecast, frost dates, and planting calendar:
Converse 46919
Fairmount 46928
Fowlerton 46930
Gas City 46933
Fowlerton 46938
Marion 46952
Marion 46953
Matthews 46957
Swayzee 46986
Sweetser 46987
Upland 46989
Van Buren 46991
More for Indiana
- Agriculture in Indiana
- Frost dates across Indiana
- 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.