Fairgrove, MI 48733 Frost Dates
Frost dates for Fairgrove, MI, ZIP 48733
Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 10/09, about 154 frost-free days later.
Fairgrove sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6a around Fairgrove 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.
How much risk comes with planting early here
05/07 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. 05/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fairgrove compares
About 154 days separate Fairgrove's last and first frost, putting it 34,407 of 40,283 ZIP codes nationally. Within MI, it ranks 793 of 1,153.
Learn more
the frost range explains how to read the range around Fairgrove's dates instead of trusting one, and local microclimates explains what one yard in Fairgrove can differ from the 48733 normal.