Mount Pleasant, MI 48896 Frost Dates
Mount Pleasant, MI: when does the frost end?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/20, roughly 171 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Mount Pleasant in Zone 5b (-15 to -10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Mount Pleasant's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Mount Pleasant's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.
Mount Pleasant against the rest of the dataset
About 171 days separate Mount Pleasant's last and first frost, putting it 28,602 of 40,283 ZIP codes nationally. Within MI, it ranks 289 of 1,153.
Learn more
Before leaning on 48896's figures: zone vs. frost date explains why Zone 5b and Mount Pleasant's frost date answer different questions, while the frost range explains how to read the range around Mount Pleasant's dates instead of trusting one.