Ecorse, MI 48269 Frost Dates
When can you plant in Ecorse, MI?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. The first fall frost typically arrives around 10/15, about 166 frost-free days later.
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.
What to do before the first frost
About 7 weeks of growing season left in Ecorse before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Ecorse's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ecorse compares
At roughly 166 frost-free days, Ecorse places 30,343 of 40,283 ZIP codes in this dataset. Within MI, it ranks 411 of 1,153.
Learn more
zone vs. frost date covers why Zone 6b and Ecorse's frost date answer different questions. the frost range covers how to read the range around Ecorse's dates instead of trusting one.