Zilwaukee, MI 48663 Frost Dates
When can you plant in Zilwaukee, MI?
The last spring frost here typically falls around 04/29, about 244 days from today. The first fall frost typically arrives around 10/21, about 175 frost-free days later.
The USDA Plant Hardiness Zone Map puts Zilwaukee in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 8 weeks of growing season left in Zilwaukee 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 04/14 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Zilwaukee compares
Zilwaukee's growing season runs about 175 days, ranking 27,035 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 154 of 1,153.
Learn more
the frost range covers how to read the range around Zilwaukee's dates instead of trusting one. local microclimates covers what one yard in Zilwaukee can differ from the 48663 normal.