Crandon, WI 54541 Frost Dates
Frost dates for Crandon, WI, ZIP 54541
Typically, the last spring freeze lands around 05/19, roughly 264 days out. The first fall frost typically arrives around 09/29, about 131 frost-free days later.
The USDA Plant Hardiness Zone Map puts Crandon 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
Zone 4b around Crandon 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.
The actual range around Crandon's last frost
05/19 is the middle of 30 years of NOAA records, not a promise. Plant by 05/05 and you're betting against frost in roughly 9 years out of 10. 06/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Crandon compares
At roughly 131 frost-free days, Crandon places 38,289 of 40,283 ZIP codes in this dataset. Within WI, it ranks 795 of 860.
Learn more
local microclimates explains what one yard in Crandon can differ from the 54541 normal, and zone vs. frost date explains why Zone 4b and Crandon's frost date answer different questions.