East Grand Rapids, MI 49560 Frost Dates
Frost dates for East Grand Rapids, MI, ZIP 49560
Typically, the last spring freeze lands around 05/06, roughly 251 days out. The first fall frost typically arrives around 10/10, about 157 frost-free days later.
The USDA Plant Hardiness Zone Map puts East Grand Rapids 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 East Grand Rapids 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.
Why 05/06 isn't a guarantee
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How East Grand Rapids compares
About 157 days separate East Grand Rapids's last and first frost, putting it 33,275 of 40,283 ZIP codes nationally. Within MI, it ranks 716 of 1,153.
Learn more
local microclimates explains what one yard in East Grand Rapids can differ from the 49560 normal, and zone vs. frost date explains why Zone 6a and East Grand Rapids's frost date answer different questions.