Litchfield County, Connecticut
Local growing conditions for Litchfield County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 40 ZIP codes in our data.
Hardiness zones in Litchfield County
Litchfield County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Litchfield County for its live forecast, frost dates, and planting calendar:
New Hartford Center 06057
Pleasant Valley 06063
Canaan 06018
Riverton 06021
Canaan 06024
Falls Village 06031
Lakeville 06039
Norfolk 06058
New Hartford Center 06061
Lakeville 06068
Sharon 06069
Canaan 06079
Winsted 06098
Bantam 06750
Bethlehem Village 06751
Bridgewater 06752
Cornwall Bridge 06753
Cornwall Bridge 06754
Gaylordsville 06755
Torrington 06756
Cornwall Bridge 06757
Bethlehem Village 06758
Litchfield 06759
Bethlehem Village 06763
More for Connecticut
- Agriculture in Connecticut
- Frost dates across Connecticut
- 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.