Sheridan, MI 48885 Frost Dates
48885, near Sheridan, MI: the frost window
Around 05/18 is the usual last spring frost, about 263 days away. Fall's first freeze usually shows up around 09/28, roughly 133 days after the last spring frost.
Zone 5b (-15 to -10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Sheridan, not a forecast for this year.
Stretching the season past the first frost
Sheridan's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Sheridan's last frost
05/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/03 and only about 1 year in 10 sees frost after that.
Sheridan against the rest of the dataset
About 133 days separate Sheridan's last and first frost, putting it 38,084 of 40,283 ZIP codes nationally. Within MI, it ranks 1,004 of 1,153.
Learn more
Two guides worth reading on 48885: zone vs. frost date, on why Zone 5b and Sheridan's frost date answer different questions, and the frost range, on how to read the range around Sheridan's dates instead of trusting one.