Vandalia, MI 49061 Frost Dates
When can you plant in Vandalia, MI?
Around 05/04 is the usual last spring frost, about 249 days away. The first fall frost typically arrives around 10/11, about 158 frost-free days later.
Vandalia sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 6 weeks of growing season left in Vandalia before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Vandalia compares
About 158 days separate Vandalia's last and first frost, putting it 33,127 of 40,283 ZIP codes nationally. Within MI, it ranks 680 of 1,153.
Learn more
local microclimates covers what one yard in Vandalia can differ from the 49061 normal. zone vs. frost date covers why Zone 6a and Vandalia's frost date answer different questions.