New Baltimore, MI 48047 Frost Dates
48047, near New Baltimore, MI: the frost window
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/24, roughly 174 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 Baltimore, not a forecast for this year.
Stretching the season past the first frost
New Baltimore's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
New Baltimore against the rest of the dataset
New Baltimore's growing season runs about 174 days, ranking 27,400 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 179 of 1,153.
Learn more
Two guides worth reading on 48047: local microclimates, on what one yard in New Baltimore can differ from the 48047 normal, and zone vs. frost date, on why Zone 6b and New Baltimore's frost date answer different questions.