Collin County, Texas
Local growing conditions for Collin County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 29 ZIP codes in our data.
Hardiness zones in Collin County
Collin County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Collin County for its live forecast, frost dates, and planting calendar:
Lucas 75002
Celina 75009
Allen 75013
Plano 75023
Plano 75024
Plano 75025
Frisco 75034
Frisco 75035
McKinney 75069
McKinney 75070
McKinney 75071
McKinney 75072
Plano 75074
Plano 75075
Prosper 75078
Richardson 75082
Plano 75093
Murphy 75094
Wylie 75098
Josephine 75164
Lavon 75166
Nevada 75173
Dallas 75252
Dallas 75287
More for Texas
- Agriculture in Texas
- Frost dates across Texas
- 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.