Three Oaks, MI 49116 Frost Dates
Frost dates for Three Oaks, MI, ZIP 49116
The last spring frost here typically falls around 04/19, about 234 days from today. The first fall frost typically arrives around 10/27, about 191 frost-free days later.
Zone 6b (-5 to 0°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 Three Oaks, not a forecast for this year.
What to do before the first frost
Zone 6b around Three Oaks has about 9 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
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Three Oaks compares
Three Oaks's growing season runs about 191 days, ranking 20,813 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 13 of 1,153.
Learn more
local microclimates explains what one yard in Three Oaks can differ from the 49116 normal, and zone vs. frost date explains why Zone 6b and Three Oaks's frost date answer different questions.