Forestville, MI 48434 Frost Dates
When can you plant in Forestville, MI?
Typically, the last spring freeze lands around 05/02, roughly 247 days out. The first fall frost typically arrives around 10/24, about 173 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 Forestville, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Forestville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Forestville's last frost
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Forestville compares
Forestville's growing season runs about 173 days, ranking 28,115 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 241 of 1,153.
Learn more
local microclimates covers what one yard in Forestville can differ from the 48434 normal. zone vs. frost date covers why Zone 6a and Forestville's frost date answer different questions.