North Branch, MI 48461 Frost Dates
North Branch, MI: when does the frost end?
Around 05/04 is the usual last spring frost, about 249 days away. Fall's first freeze usually shows up around 10/14, roughly 160 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts North Branch in Zone 6a (-10 to -5°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 7 weeks until North Branch's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around North Branch's last frost
05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 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.
North Branch against the rest of the dataset
About 160 days separate North Branch's last and first frost, putting it 32,427 of 40,283 ZIP codes nationally. Within MI, it ranks 635 of 1,153.
Learn more
Before leaning on 48461's figures: local microclimates explains what one yard in North Branch can differ from the 48461 normal, while zone vs. frost date explains why Zone 6a and North Branch's frost date answer different questions.