GrowZone

Frost dates by ZIP

Last and first frost dates for ZIP 77002 (Houston, TX)

Houston (ZIP 77002) has an average last spring frost around Feb 20 and first fall frost around Dec 5, about 288 frost-free days.

Source: houston-hobby frost station, USDA zone 9b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

Houston (ZIP 77002) has an average last spring frost around Feb 20 and an average first fall frost around Dec 5, giving about 288 frost-free days.

Feb 20 last frost 288 frost-free days Dec 5 first frost

Crop calendars for ZIP 77002