Marysville, MI 48040 Frost Dates
When can you plant in Marysville, MI?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. The first fall frost typically arrives around 11/03, about 196 frost-free days later.
Marysville 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 10 weeks of growing season left in Marysville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Marysville compares
Marysville's growing season runs about 196 days, ranking 18,942 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 7 of 1,153.
Learn more
local microclimates covers what one yard in Marysville can differ from the 48040 normal. zone vs. frost date covers why Zone 6a and Marysville's frost date answer different questions.