Walled Lake, MI 48377 Frost Dates
When can you plant in Walled Lake, MI?
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/17, about 165 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 Walled Lake, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Walled Lake 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
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Walled Lake compares
At roughly 165 frost-free days, Walled Lake places 30,531 of 40,283 ZIP codes in this dataset. Within MI, it ranks 446 of 1,153.
Learn more
local microclimates covers what one yard in Walled Lake can differ from the 48377 normal. zone vs. frost date covers why Zone 6a and Walled Lake's frost date answer different questions.