Mount Pleasant, WI 53406 Frost Dates
When can you plant in Mount Pleasant, WI?
Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/24, about 184 frost-free days later.
Zone 5b (-15 to -10°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 Mount Pleasant, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Mount Pleasant before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/20 isn't a guarantee
04/20 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. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mount Pleasant compares
Mount Pleasant's growing season runs about 184 days, ranking 23,430 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 13 of 860.
Learn more
the frost range covers how to read the range around Mount Pleasant's dates instead of trusting one. local microclimates covers what one yard in Mount Pleasant can differ from the 53406 normal.