Deerfield, MI 49238 Frost Dates
When can you plant in Deerfield, MI?
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/13, about 168 frost-free days later.
The USDA Plant Hardiness Zone Map puts Deerfield 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
About 7 weeks of growing season left in Deerfield before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Deerfield's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Deerfield compares
At roughly 168 frost-free days, Deerfield places 29,745 of 40,283 ZIP codes in this dataset. Within MI, it ranks 354 of 1,153.
Learn more
local microclimates covers what one yard in Deerfield can differ from the 49238 normal. zone vs. frost date covers why Zone 6a and Deerfield's frost date answer different questions.