Tolland County, Connecticut
Local growing conditions for Tolland County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 16 ZIP codes in our data.
Hardiness zones in Tolland County
Tolland County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Tolland County for its live forecast, frost dates, and planting calendar:
Stafford Springs 06076
Mansfield Center 06250
Storrs 06268
Storrs 06269
Crystal Lake 06029
Manchester 06043
Rockville 06066
Somers 06071
Hazardville 06072
Crystal Lake 06084
Colchester 06231
Coventry Lake 06232
Willimantic 06237
Coventry Lake 06238
Terramuggus 06248
Stafford Springs 06279
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.