Schoolcraft, MI 49087 Frost Dates
Frost dates for Schoolcraft, MI, ZIP 49087
The last spring frost here typically falls around 05/07, about 252 days from today. The first fall frost typically arrives around 10/11, about 156 frost-free days later.
The USDA Plant Hardiness Zone Map puts Schoolcraft in Zone 6a (-10 to -5°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
Zone 6a around Schoolcraft has about 6 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 Schoolcraft's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Schoolcraft compares
About 156 days separate Schoolcraft's last and first frost, putting it 33,689 of 40,283 ZIP codes nationally. Within MI, it ranks 749 of 1,153.
Learn more
zone vs. frost date explains why Zone 6a and Schoolcraft's frost date answer different questions, and the frost range explains how to read the range around Schoolcraft's dates instead of trusting one.