South Range, MI 49955 Frost Dates
South Range, MI: when does the frost end?
The last spring frost here typically falls around 06/01, about 277 days from today. Fall's first freeze usually shows up around 09/23, roughly 115 days after the last spring frost.
South Range sits in USDA Zone 5a (-20 to -15°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 4 weeks until South Range's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 06/01 isn't a guarantee
06/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/17 and only about 1 year in 10 sees frost after that.
South Range against the rest of the dataset
At roughly 115 frost-free days, South Range places 39,327 of 40,283 ZIP codes in this dataset. Within MI, it ranks 1,125 of 1,153.
Learn more
Before leaning on 49955's figures: local microclimates explains what one yard in South Range can differ from the 49955 normal, while zone vs. frost date explains why Zone 5a and South Range's frost date answer different questions.