Harper Woods, MI 48224 Frost Dates
Harper Woods, MI: when does the frost end?
The last spring frost here typically falls around 04/29, about 244 days from today. Fall's first freeze usually shows up around 10/22, roughly 176 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Harper Woods 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
With roughly 8 weeks until Harper Woods's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Harper Woods's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Harper Woods against the rest of the dataset
About 176 days separate Harper Woods's last and first frost, putting it 26,394 of 40,283 ZIP codes nationally. Within MI, it ranks 114 of 1,153.
Learn more
Before leaning on 48224's figures: zone vs. frost date explains why Zone 6b and Harper Woods's frost date answer different questions, while the frost range explains how to read the range around Harper Woods's dates instead of trusting one.