Lincoln, MI 49747 Frost Dates
Frost dates for Lincoln, MI, ZIP 49747
Typically, the last spring freeze lands around 05/17, roughly 262 days out. The first fall frost typically arrives around 10/01, about 136 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lincoln in Zone 5a (-20 to -15°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 5a around Lincoln has about 5 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.
The actual range around Lincoln's last frost
05/17 is the middle of 30 years of NOAA records, not a promise. Plant by 05/01 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lincoln compares
Lincoln's growing season runs about 136 days, ranking 37,786 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 959 of 1,153.
Learn more
local microclimates explains what one yard in Lincoln can differ from the 49747 normal, and zone vs. frost date explains why Zone 5a and Lincoln's frost date answer different questions.