Ecorse, MI 48267 Frost Dates
Frost dates for Ecorse, MI, ZIP 48267
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/15, about 166 frost-free days later.
Ecorse sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6b around Ecorse has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
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
Ecorse's growing season runs about 166 days, ranking 30,341 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 409 of 1,153.
Learn more
zone vs. frost date explains why Zone 6b and Ecorse's frost date answer different questions, and the frost range explains how to read the range around Ecorse's dates instead of trusting one.