South Range, MI 49905 Frost Dates
When can you plant in South Range, MI?
Typically, the last spring freeze lands around 05/17, roughly 262 days out. The first fall frost typically arrives around 10/01, about 138 frost-free days later.
Zone 5b (-15 to -10°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 South Range, not a forecast for this year.
What to do before the first frost
About 5 weeks of growing season left in South Range before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/17 is the middle of 30 years of NOAA records, not a promise. Plant by 05/01 and you're betting against frost in roughly 9 years out of 10. 06/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How South Range compares
About 138 days separate South Range's last and first frost, putting it 37,428 of 40,283 ZIP codes nationally. Within MI, it ranks 931 of 1,153.
Learn more
the frost range covers how to read the range around South Range's dates instead of trusting one. local microclimates covers what one yard in South Range can differ from the 49905 normal.