Ecorse, MI 48222 Frost Dates
48222, near Ecorse, MI: the frost window
The last spring frost here typically falls around 05/01, about 246 days from today. Fall's first freeze usually shows up around 10/15, roughly 166 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Ecorse in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Ecorse's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Ecorse's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.
Ecorse against the rest of the dataset
About 166 days separate Ecorse's last and first frost, putting it 30,329 of 40,283 ZIP codes nationally. Within MI, it ranks 397 of 1,153.
Learn more
Two guides worth reading on 48222: local microclimates, on what one yard in Ecorse can differ from the 48222 normal, and zone vs. frost date, on why Zone 6b and Ecorse's frost date answer different questions.