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Frost Date Lookup

Last spring frost + first fall frost by USDA zone. Growing season length and safe planting dates.

Updated April 2026

USDA hardiness zone

Last spring frost

Apr 15

First fall frost

Oct 15

Growing-season length

183 days

Safe planting window (tender crops)

Apr 29 — Oct 1

Days until last frost

9 days ago

Typical averages for the zone — your local microclimate can shift dates by 1–2 weeks. Always check a 10-day forecast before transplanting tender crops.

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What it does

Last spring frost decides when you can plant outside. First fall frost decides when you’d better harvest. Both by zone.

Runs entirely in your browser — no upload, no account, no watermark. For more tools in this category see the full tools index.

Embed this tool on your siteShow snippet

Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.

<iframe src="https://freetoolarena.com/embed/frost-date-lookup" width="100%" height="720" frameborder="0" loading="lazy" title="Frost Date Lookup" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>

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How to use it

Pick your zone.
Read frost dates.
Check growing season length.