Bloomfield Hills, MI 48304 Frost Dates
48304, near Bloomfield Hills, MI: the frost window
The last spring frost here typically falls around 05/01, about 246 days from today. Fall's first freeze usually shows up around 10/17, roughly 165 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 Bloomfield Hills, not a forecast for this year.
Stretching the season past the first frost
Bloomfield Hills's growing season runs out in roughly 7 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
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.
Bloomfield Hills against the rest of the dataset
About 165 days separate Bloomfield Hills's last and first frost, putting it 30,565 of 40,283 ZIP codes nationally. Within MI, it ranks 450 of 1,153.
Learn more
Two guides worth reading on 48304: the frost range, on how to read the range around Bloomfield Hills's dates instead of trusting one, and local microclimates, on what one yard in Bloomfield Hills can differ from the 48304 normal.