Sheridan, MI 48884 Frost Dates
Frost dates for Sheridan, MI, ZIP 48884
Around 05/18 is the usual last spring frost, about 263 days away. The first fall frost typically arrives around 09/28, about 133 frost-free days later.
The USDA Plant Hardiness Zone Map puts Sheridan 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
Zone 6a around Sheridan has about 4 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.
Why 05/18 isn't a guarantee
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/29 and you're betting against frost in roughly 9 years out of 10. 06/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sheridan compares
At roughly 133 frost-free days, Sheridan places 38,083 of 40,283 ZIP codes in this dataset. Within MI, it ranks 1,003 of 1,153.
Learn more
the frost range explains how to read the range around Sheridan's dates instead of trusting one, and local microclimates explains what one yard in Sheridan can differ from the 48884 normal.