McLean County, Illinois
Local growing conditions for McLean County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 24 ZIP codes in our data.
Hardiness zones in McLean County
McLean County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in McLean County for its live forecast, frost dates, and planting calendar:
Chenoa 61726
Bloomington 61701
Bloomington 61704
Normal 61705
Anchor 61720
Arrowsmith 61722
Bellflower 61724
Colfax 61728
Cooksville 61730
Anchor 61731
Danvers 61732
Downs 61736
Ellsworth 61737
Gridley 61744
Heyworth 61745
Hudson 61748
Le Roy 61752
Lexington 61753
McLean 61754
Normal 61761
Saybrook 61770
Shirley 61772
Stanford 61774
Towanda 61776
More for Illinois
- Agriculture in Illinois
- Frost dates across Illinois
- 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.