Lyman County, South Dakota

Local growing conditions for Lyman 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 Lyman County

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

Zone 4 (1) Zone 5 (5)

Local weather & frost dates

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

Kennebec 57544 Oacoma 57365 Lower Brule 57548 Presho 57568 Reliance 57569 Vivian 57576

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.