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Frost dates for Marquette, Michigan

In a typical year, Marquette’s last spring frost lands around May 8 and the first fall frost around Oct 21, a growing season of about 166 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 5b.

Right now the typical frost season has arrived; planting waits for spring.

Last spring frost and first fall frost odds for Marquette, Michigan
OddsLast spring frostFirst fall frost
10 percentApr 26Oct 6
50 percentMay 8Oct 21
90 percentMay 23Nov 5

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 Marquette is typically around 46°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 Marquette, Michigan?

Marquette’s last spring frost falls around May 8 in a typical year. One year in ten it is done by April 26, and one year in ten frost holds on until May 23. Frost-sensitive planting usually waits for the late side of that band.

When is the first fall frost in Marquette?

The first fall frost arrives around October 21 in a typical year, as early as October 6 in an early year and as late as November 5 in a late one.

How long is the growing season in Marquette?

About 166 days, counted between the typical last spring frost and the typical first fall frost.

What USDA zone is Marquette in?

Marquette is in USDA hardiness zone 5b 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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