Bloomingdale, MI 49026 Frost Dates
Frost dates for Bloomingdale, MI, ZIP 49026
Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 10/11, about 156 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 Bloomingdale, not a forecast for this year.
What to do before the first frost
Zone 6a around Bloomingdale has about 6 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 Bloomingdale's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bloomingdale compares
At roughly 156 frost-free days, Bloomingdale places 33,781 of 40,283 ZIP codes in this dataset. Within MI, it ranks 756 of 1,153.
Learn more
the frost range explains how to read the range around Bloomingdale's dates instead of trusting one, and local microclimates explains what one yard in Bloomingdale can differ from the 49026 normal.