St. Clair Shores, MI 48082 Frost Dates
Frost dates for St. Clair Shores, MI, ZIP 48082
Around 04/30 is the usual last spring frost, about 245 days away. The first fall frost typically arrives around 10/24, about 174 frost-free days later.
St. Clair Shores sits in USDA Zone 6b (-5 to 0°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
Zone 6b around St. Clair Shores has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/30 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. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How St. Clair Shores compares
About 174 days separate St. Clair Shores's last and first frost, putting it 27,329 of 40,283 ZIP codes nationally. Within MI, it ranks 165 of 1,153.
Learn more
local microclimates explains what one yard in St. Clair Shores can differ from the 48082 normal, and zone vs. frost date explains why Zone 6b and St. Clair Shores's frost date answer different questions.