FrostDateCheck

Center Line, MI 48089 Frost Dates

Center Line, MI: when does the frost end?

Zone 6b

The last spring frost here typically falls around 04/21, about 236 days from today. Fall's first freeze usually shows up around 10/31, roughly 190 days after the last spring frost.

Zone 6b (-5 to 0°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 Center Line, not a forecast for this year.

Stretching the season past the first frost

With roughly 9 weeks until Center Line's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Center Line's last frost

04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.

Center Line against the rest of the dataset

Center Line's growing season runs about 190 days, ranking 21,112 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 38 of 1,153.

Learn more

Before leaning on 48089's figures: local microclimates explains what one yard in Center Line can differ from the 48089 normal, while zone vs. frost date explains why Zone 6b and Center Line's frost date answer different questions.