Millington, MI 48746 Frost Dates
Frost dates for Millington, MI, ZIP 48746
Around 05/09 is the usual last spring frost, about 254 days away. The first fall frost typically arrives around 10/07, about 150 frost-free days later.
The USDA Plant Hardiness Zone Map puts Millington 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 Millington 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
05/09 is the middle of 30 years of NOAA records, not a promise. Plant by 04/26 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 Millington compares
About 150 days separate Millington's last and first frost, putting it 35,343 of 40,283 ZIP codes nationally. Within MI, it ranks 825 of 1,153.
Learn more
the frost range explains how to read the range around Millington's dates instead of trusting one, and local microclimates explains what one yard in Millington can differ from the 48746 normal.