Algonac, MI 48028 Frost Dates
Algonac, MI: when does the frost end?
The last spring frost here typically falls around 05/03, about 248 days from today. Fall's first freeze usually shows up around 10/18, roughly 167 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 Algonac, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Algonac's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Algonac's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 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.
Algonac against the rest of the dataset
Algonac's growing season runs about 167 days, ranking 29,972 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 365 of 1,153.
Learn more
Before leaning on 48028's figures: zone vs. frost date explains why Zone 6b and Algonac's frost date answer different questions, while the frost range explains how to read the range around Algonac's dates instead of trusting one.