Forestville, MI 48465 Frost Dates
Frost dates for Forestville, MI, ZIP 48465
The last spring frost here typically falls around 05/02, about 247 days from today. 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
Zone 6a around Forestville has about 8 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 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 28,116 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 242 of 1,153.
Learn more
the frost range explains how to read the range around Forestville's dates instead of trusting one, and local microclimates explains what one yard in Forestville can differ from the 48465 normal.