Wyoming, MI 49519 Frost Dates
When can you plant in Wyoming, MI?
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/10, about 157 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 Wyoming, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Wyoming before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/06 isn't a guarantee
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Wyoming compares
At roughly 157 frost-free days, Wyoming places 33,205 of 40,283 ZIP codes in this dataset. Within MI, it ranks 691 of 1,153.
Learn more
the frost range covers how to read the range around Wyoming's dates instead of trusting one. local microclimates covers what one yard in Wyoming can differ from the 49519 normal.