Westphalia, MI 48894 Frost Dates
48894, near Westphalia, MI: the frost window
Around 04/28 is the usual last spring frost, about 243 days away. Fall's first freeze usually shows up around 10/24, roughly 179 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Westphalia 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
Westphalia'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
04/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Westphalia against the rest of the dataset
At roughly 179 frost-free days, Westphalia places 25,405 of 40,283 ZIP codes in this dataset. Within MI, it ranks 100 of 1,153.
Learn more
Two guides worth reading on 48894: the frost range, on how to read the range around Westphalia's dates instead of trusting one, and local microclimates, on what one yard in Westphalia can differ from the 48894 normal.