Lake Angelus, MI 48347 Frost Dates
48347, near Lake Angelus, MI: the frost window
The last spring frost here typically falls around 04/29, about 244 days from today. Fall's first freeze usually shows up around 10/20, roughly 172 days after the last spring frost.
Zone 6a (-10 to -5°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 Lake Angelus, not a forecast for this year.
Stretching the season past the first frost
Lake Angelus's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Lake Angelus against the rest of the dataset
Lake Angelus's growing season runs about 172 days, ranking 28,497 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 282 of 1,153.
Learn more
Two guides worth reading on 48347: local microclimates, on what one yard in Lake Angelus can differ from the 48347 normal, and zone vs. frost date, on why Zone 6a and Lake Angelus's frost date answer different questions.