Barryton, MI 49305 Frost Dates
When can you plant in Barryton, MI?
Around 05/13 is the usual last spring frost, about 258 days away. The first fall frost typically arrives around 10/02, about 142 frost-free days later.
The USDA Plant Hardiness Zone Map puts Barryton in Zone 5b (-15 to -10°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
About 5 weeks of growing season left in Barryton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/13 isn't a guarantee
05/13 is the middle of 30 years of NOAA records, not a promise. Plant by 04/28 and you're betting against frost in roughly 9 years out of 10. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Barryton compares
At roughly 142 frost-free days, Barryton places 36,804 of 40,283 ZIP codes in this dataset. Within MI, it ranks 901 of 1,153.
Learn more
local microclimates covers what one yard in Barryton can differ from the 49305 normal. zone vs. frost date covers why Zone 5b and Barryton's frost date answer different questions.