Middleville, MI 49333 Frost Dates
Middleville, MI: when does the frost end?
Typically, the last spring freeze lands around 05/03, roughly 248 days out. Fall's first freeze usually shows up around 10/12, roughly 158 days after the last spring frost.
Middleville 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 6 weeks until Middleville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Middleville'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 05/22 and only about 1 year in 10 sees frost after that.
Middleville against the rest of the dataset
About 158 days separate Middleville's last and first frost, putting it 32,971 of 40,283 ZIP codes nationally. Within MI, it ranks 665 of 1,153.
Learn more
Before leaning on 49333's figures: zone vs. frost date explains why Zone 6a and Middleville's frost date answer different questions, while the frost range explains how to read the range around Middleville's dates instead of trusting one.