Stockbridge, MI 49259 Frost Dates
Frost dates for Stockbridge, MI, ZIP 49259
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/14, about 164 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 Stockbridge, not a forecast for this year.
What to do before the first frost
Zone 6a around Stockbridge has about 7 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.
Why 05/01 isn't a guarantee
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Stockbridge compares
At roughly 164 frost-free days, Stockbridge places 31,033 of 40,283 ZIP codes in this dataset. Within MI, it ranks 494 of 1,153.
Learn more
local microclimates explains what one yard in Stockbridge can differ from the 49259 normal, and zone vs. frost date explains why Zone 6a and Stockbridge's frost date answer different questions.