McCook County, South Dakota

Local growing conditions for McCook County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 6 ZIP codes in our data.

Hardiness zones in McCook County

McCook County spans these USDA plant hardiness zones (by number of ZIP codes):

Zone 5 (6)

Local weather & frost dates

Open any community in McCook County for its live forecast, frost dates, and planting calendar:

Canistota 57012 Monroe 57047 Montrose 57048 Salem 57058 Bridgewater 57319 Spencer 57374

More for South Dakota

Agriculture in South Dakota
Frost dates across South Dakota
USDA hardiness zones explained
Planting calendar by ZIP code

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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.