Melrose, WI 54620 Frost Dates
When can you plant in Melrose, WI?
The last spring frost here typically falls around 05/09, about 254 days from today. The first fall frost typically arrives around 10/01, about 144 frost-free days later.
The USDA Plant Hardiness Zone Map puts Melrose in Zone 4b (-25 to -20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 5 weeks of growing season left in Melrose 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
05/09 is the middle of 30 years of NOAA records, not a promise. Plant by 04/26 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 Melrose compares
About 144 days separate Melrose's last and first frost, putting it 36,437 of 40,283 ZIP codes nationally. Within WI, it ranks 679 of 860.
Learn more
local microclimates covers what one yard in Melrose can differ from the 54620 normal. zone vs. frost date covers why Zone 4b and Melrose's frost date answer different questions.