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Frost dates for Warren, Michigan

In a typical year, Warren’s last spring frost lands around Apr 21 and the first fall frost around Oct 31, a growing season of about 193 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 6b.

Right now the growing season is open, with about 6 days until the typical first fall frost.

Last spring frost and first fall frost odds for Warren, Michigan
OddsLast spring frostFirst fall frost
10 percentApr 7Oct 17
50 percentApr 21Oct 31
90 percentMay 6Nov 11

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 Warren is typically around 51°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.

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Common questions

When is the last frost in Warren, Michigan?

Warren’s last spring frost falls around April 21 in a typical year. One year in ten it is done by April 7, and one year in ten frost holds on until May 6. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Warren?

The first fall frost arrives around October 31 in a typical year, as early as October 17 in an early year and as late as November 11 in a late one.

How long is the growing season in Warren?

About 193 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Warren in?

Warren is in USDA hardiness zone 6b under the 2023 USDA Plant Hardiness Zone Map.

Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.

Nearby cities

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