New Buffalo, MI 49129 Frost Dates
New Buffalo, MI: when does the frost end?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. Fall's first freeze usually shows up around 10/27, roughly 191 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 New Buffalo, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until New Buffalo's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around New Buffalo's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
New Buffalo against the rest of the dataset
New Buffalo's growing season runs about 191 days, ranking 20,805 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 12 of 1,153.
Learn more
Before leaning on 49129's figures: local microclimates explains what one yard in New Buffalo can differ from the 49129 normal, while zone vs. frost date explains why Zone 6b and New Buffalo's frost date answer different questions.