Onsted, MI 49287 Frost Dates
Onsted, MI: when does the frost end?
Typically, the last spring freeze lands around 05/05, roughly 250 days out. Fall's first freeze usually shows up around 10/10, roughly 157 days after the last spring frost.
Onsted 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 6 weeks until Onsted's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Onsted's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Onsted against the rest of the dataset
At roughly 157 frost-free days, Onsted places 33,381 of 40,283 ZIP codes in this dataset. Within MI, it ranks 730 of 1,153.
Learn more
Before leaning on 49287's figures: local microclimates explains what one yard in Onsted can differ from the 49287 normal, while zone vs. frost date explains why Zone 6a and Onsted's frost date answer different questions.