Barton Hills, MI 48103 Frost Dates
Barton Hills, MI: when does the frost end?
Around 05/08 is the usual last spring frost, about 253 days away. Fall's first freeze usually shows up around 10/04, roughly 147 days after the last spring frost.
Barton Hills 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 5 weeks until Barton Hills's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Barton Hills against the rest of the dataset
Barton Hills's growing season runs about 147 days, ranking 35,975 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 870 of 1,153.
Learn more
Before leaning on 48103's figures: local microclimates explains what one yard in Barton Hills can differ from the 48103 normal, while zone vs. frost date explains why Zone 6a and Barton Hills's frost date answer different questions.