Westland, MI 48185 Frost Dates
Frost dates for Westland, MI, ZIP 48185
Around 05/01 is the usual last spring frost, about 246 days away. The first fall frost typically arrives around 10/15, about 166 frost-free days later.
Westland 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 Westland 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.
The actual range around Westland's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Westland compares
Westland's growing season runs about 166 days, ranking 30,274 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 382 of 1,153.
Learn more
local microclimates explains what one yard in Westland can differ from the 48185 normal, and zone vs. frost date explains why Zone 6b and Westland's frost date answer different questions.