St. Louis city, Missouri

Local growing conditions for St. Louis city: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 19 ZIP codes in our data.

Hardiness zones in St. Louis city

St. Louis city spans these USDA plant hardiness zones (by number of ZIP codes):

Zone 7 (19)

Local weather & frost dates

Open any community in St. Louis city for its live forecast, frost dates, and planting calendar:

St. Louis 63110 St. Louis 63101 St. Louis 63102 St. Louis 63103 St. Louis 63104 St. Louis 63106 St. Louis 63107 St. Louis 63108 St. Louis 63109 St. Louis 63111 St. Louis 63112 St. Louis 63113 St. Louis 63115 St. Louis 63116 St. Louis 63118 St. Louis 63120 St. Louis 63139 St. Louis 63147 St. Louis 63155

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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.