Farmington, MI 48336 Frost Dates
Farmington, MI: when does the frost end?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. Fall's first freeze usually shows up around 10/17, roughly 165 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 Farmington, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Farmington's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Farmington's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.
Farmington against the rest of the dataset
At roughly 165 frost-free days, Farmington places 30,525 of 40,283 ZIP codes in this dataset. Within MI, it ranks 443 of 1,153.
Learn more
Before leaning on 48336's figures: local microclimates explains what one yard in Farmington can differ from the 48336 normal, while zone vs. frost date explains why Zone 6b and Farmington's frost date answer different questions.