Lake Orion, MI 48366 Frost Dates
When can you plant in Lake Orion, MI?
Typically, the last spring freeze lands around 04/29, roughly 244 days out. The first fall frost typically arrives around 10/20, about 172 frost-free days later.
Lake Orion sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 8 weeks of growing season left in Lake Orion 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
04/29 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. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lake Orion compares
At roughly 172 frost-free days, Lake Orion places 28,307 of 40,283 ZIP codes in this dataset. Within MI, it ranks 260 of 1,153.
Learn more
zone vs. frost date covers why Zone 6a and Lake Orion's frost date answer different questions. the frost range covers how to read the range around Lake Orion's dates instead of trusting one.