Last Frost Date Lookup

Average last spring frost for your ZIP, in 50/30/10% probability bands. Sourced to NOAA 1991–2020 climate normals.

Enter your ZIP code

We’ll estimate your last spring frost date from your ZIP’s climate region and give you the safe planting window.

5-digit US ZIP code

Last frost dates for ZIP —

Estimated USDA hardiness zone: —

Last frost (50%)
—
Average year
Last frost (30%)
—
Earlier-than-avg
Last frost (10%)
—
Safe planting
How this is computed: Your ZIP’s first 3 digits map to a climate region, which corresponds to a USDA hardiness zone. The frost dates for each zone are derived from NOAA’s 1991–2020 climate normals averaged across representative stations. The 50/30/10% bands reflect typical year-to-year variability — even in a "safe" year, watch the 10-day forecast.

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