Lake Orion, MI 48362 Frost Dates
When can you plant in Lake Orion, MI?
The last spring frost here typically falls around 04/29, about 244 days from today. 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.
Why 04/29 isn't a guarantee
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
About 172 days separate Lake Orion's last and first frost, putting it 28,305 of 40,283 ZIP codes nationally. Within MI, it ranks 258 of 1,153.
Learn more
local microclimates covers what one yard in Lake Orion can differ from the 48362 normal. zone vs. frost date covers why Zone 6a and Lake Orion's frost date answer different questions.