Ecorse, MI 48277 Frost Dates
Ecorse, MI: when does the frost end?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. Fall's first freeze usually shows up around 10/15, roughly 166 days after the last spring frost.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Ecorse, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Ecorse's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
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
Ecorse's growing season runs about 166 days, ranking 30,346 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 414 of 1,153.
Learn more
Before leaning on 48277's figures: zone vs. frost date explains why Zone 6b and Ecorse's frost date answer different questions, while the frost range explains how to read the range around Ecorse's dates instead of trusting one.