Morenci, MI 49256 Frost Dates
Morenci, MI: when does the frost end?
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/20, roughly 173 days after the last spring frost.
Zone 6a (-10 to -5°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 Morenci, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Morenci's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Morenci's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Morenci against the rest of the dataset
About 173 days separate Morenci's last and first frost, putting it 27,927 of 40,283 ZIP codes nationally. Within MI, it ranks 224 of 1,153.
Learn more
Before leaning on 49256's figures: local microclimates explains what one yard in Morenci can differ from the 49256 normal, while zone vs. frost date explains why Zone 6a and Morenci's frost date answer different questions.