Edmore, MI 48886 Frost Dates
Frost dates for Edmore, MI, ZIP 48886
Around 05/18 is the usual last spring frost, about 263 days away. The first fall frost typically arrives around 09/28, about 133 frost-free days later.
Zone 5b (-15 to -10°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 Edmore, not a forecast for this year.
What to do before the first frost
Zone 5b around Edmore has about 4 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 05/18 isn't a guarantee
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/29 and you're betting against frost in roughly 9 years out of 10. 06/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Edmore compares
Edmore's growing season runs about 133 days, ranking 38,077 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 1,000 of 1,153.
Learn more
local microclimates explains what one yard in Edmore can differ from the 48886 normal, and zone vs. frost date explains why Zone 5b and Edmore's frost date answer different questions.