Adams County, Illinois
Local growing conditions for Adams 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 Adams County
Adams County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Adams County for its live forecast, frost dates, and planting calendar:
Quincy 62301
Quincy 62305
Camp Point 62320
Clayton 62324
Coatsburg 62325
Fowler 62338
Golden 62339
La Prairie 62346
Liberty 62347
Lima 62348
Loraine 62349
Mendon 62351
Paloma 62359
Payson 62360
Plainville 62365
Marcelline 62376
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.