Davison, MI 48423 Frost Dates
Davison, 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 10/05, roughly 148 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 Davison, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Davison'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 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Davison against the rest of the dataset
Davison's growing season runs about 148 days, ranking 35,708 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 834 of 1,153.
Learn more
Before leaning on 48423's figures: zone vs. frost date explains why Zone 6a and Davison's frost date answer different questions, while the frost range explains how to read the range around Davison's dates instead of trusting one.