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Frost dates for Grand Rapids, Michigan

In a typical year, Grand Rapids’s last spring frost lands around May 6 and the first fall frost around Oct 10, a growing season of about 157 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 6a.

Last spring frost and first fall frost odds for Grand Rapids, Michigan
OddsLast spring frostFirst fall frost
10 percentApr 24Sep 29
50 percentMay 6Oct 10
90 percentMay 23Oct 25

A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.

Soil in Grand Rapids is typically around 70°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.

Plantable now in Grand Rapids

Timing comes from the same temperature engine the app uses, run against Grand Rapids’s normals for today.

See the full what-to-plant lookup

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