Gladstone, MI 49878 Frost Dates
Gladstone, MI: when does the frost end?
Typically, the last spring freeze lands around 05/18, roughly 263 days out. Fall's first freeze usually shows up around 10/04, roughly 137 days after the last spring frost.
Gladstone sits in USDA Zone 5a (-20 to -15°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 5 weeks until Gladstone's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Gladstone's last frost
05/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/02 and only about 1 year in 10 sees frost after that.
Gladstone against the rest of the dataset
About 137 days separate Gladstone's last and first frost, putting it 37,511 of 40,283 ZIP codes nationally. Within MI, it ranks 940 of 1,153.
Learn more
Before leaning on 49878's figures: local microclimates explains what one yard in Gladstone can differ from the 49878 normal, while zone vs. frost date explains why Zone 5a and Gladstone's frost date answer different questions.