Milan, MI 48160 Frost Dates
When can you plant in Milan, MI?
Around 04/26 is the usual last spring frost, about 241 days away. The first fall frost typically arrives around 10/19, about 175 frost-free days later.
Zone 6a (-10 to -5°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 Milan, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Milan before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Milan's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Milan compares
Milan's growing season runs about 175 days, ranking 26,868 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 143 of 1,153.
Learn more
zone vs. frost date covers why Zone 6a and Milan's frost date answer different questions. the frost range covers how to read the range around Milan's dates instead of trusting one.