Keego Harbor, MI 48327 Frost Dates
When can you plant in Keego Harbor, 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.
Keego Harbor 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 Keego Harbor before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Keego Harbor's last frost
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 Keego Harbor compares
At roughly 172 frost-free days, Keego Harbor places 28,308 of 40,283 ZIP codes in this dataset. Within MI, it ranks 261 of 1,153.
Learn more
zone vs. frost date covers why Zone 6a and Keego Harbor's frost date answer different questions. the frost range covers how to read the range around Keego Harbor's dates instead of trusting one.