Southfield, MI 48034 Frost Dates
Frost dates for Southfield, MI, ZIP 48034
Typically, the last spring freeze lands around 05/01, roughly 246 days out. The first fall frost typically arrives around 10/17, about 165 frost-free days later.
Southfield 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 Southfield has about 7 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
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 Southfield compares
About 165 days separate Southfield's last and first frost, putting it 30,486 of 40,283 ZIP codes nationally. Within MI, it ranks 431 of 1,153.
Learn more
the frost range explains how to read the range around Southfield's dates instead of trusting one, and local microclimates explains what one yard in Southfield can differ from the 48034 normal.