Sandusky, MI 48472 Frost Dates
Sandusky, MI: when does the frost end?
The last spring frost here typically falls around 05/02, about 247 days from today. Fall's first freeze usually shows up around 10/16, roughly 165 days after the last spring frost.
Sandusky sits in USDA Zone 6a (-10 to -5°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.
Stretching the season past the first frost
With roughly 7 weeks until Sandusky's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Sandusky's last frost
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Sandusky against the rest of the dataset
Sandusky's growing season runs about 165 days, ranking 30,592 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 453 of 1,153.
Learn more
Before leaning on 48472's figures: the frost range explains how to read the range around Sandusky's dates instead of trusting one, while local microclimates explains what one yard in Sandusky can differ from the 48472 normal.