Look up the approximate first and last frost dates for common US metro areas.
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How to Use the Frost Date Lookup
Choose your nearest city from the list, then press Look Up. The tool shows the typical last spring frost and first autumn frost for that metro area. Use Clear to reset the form.
What the result means
The last spring frost is the date after which frost is unlikely, used for timing transplanting and direct sowing.
The first autumn frost marks the end of the frost-free growing season.
Frost dates are averages — a late or early frost can still occur in any given year.
Values are approximate metro-level figures, not precise readings for a specific garden or elevation.
Features
Covers 35 major US metro areas
Shows both spring and autumn frost dates in one lookup
Clearly labelled as approximate planning values
Works on desktop, tablet and mobile with no sign-up
All processing runs locally in your browser. Your data is not uploaded to any server.