Fremont County, Iowa
Local growing conditions for Fremont County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 9 ZIP codes in our data.
Hardiness zones in Fremont County
Fremont County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Fremont County for its live forecast, frost dates, and planting calendar:
Farragut 51639
Hamburg 51640
Imogene 51645
Percival 51648
Randolph 51649
Riverton 51650
Sidney 51652
Tabor 51653
Thurman 51654
More for Iowa
- Agriculture in Iowa
- Frost dates across Iowa
- 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.