Cumberland, WI 54826 Frost Dates
Frost dates for Cumberland, WI, ZIP 54826
Typically, the last spring freeze lands around 05/05, roughly 250 days out. The first fall frost typically arrives around 10/04, about 152 frost-free days later.
Zone 4b (-25 to -20°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 Cumberland, not a forecast for this year.
What to do before the first frost
Zone 4b around Cumberland has about 5 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cumberland compares
About 152 days separate Cumberland's last and first frost, putting it 34,777 of 40,283 ZIP codes nationally. Within WI, it ranks 519 of 860.
Learn more
local microclimates explains what one yard in Cumberland can differ from the 54826 normal, and zone vs. frost date explains why Zone 4b and Cumberland's frost date answer different questions.