Denver County, Colorado
Local growing conditions for Denver County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 31 ZIP codes in our data.
Hardiness zones in Denver County
Denver County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Denver County for its live forecast, frost dates, and planting calendar:
Denver 80204
Denver 80238
Denver 80202
Denver 80203
Denver 80205
Denver 80206
Denver 80207
Denver 80209
Denver 80210
Denver 80211
Denver 80212
Denver 80216
Denver 80218
Denver 80219
Denver 80220
Denver 80222
Denver 80223
Denver 80224
Denver 80230
Four Square Mile 80231
Denver 80236
Denver 80237
Denver 80239
Glendale 80246
More for Colorado
- Agriculture in Colorado
- Frost dates across Colorado
- 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.