Crandon, WI 54428 Frost Dates
When can you plant in Crandon, WI?
Typically, the last spring freeze lands around 05/23, roughly 268 days out. The first fall frost typically arrives around 09/23, about 124 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 Crandon, not a forecast for this year.
What to do before the first frost
About 4 weeks of growing season left in Crandon 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
05/23 is the middle of 30 years of NOAA records, not a promise. Plant by 05/07 and you're betting against frost in roughly 9 years out of 10. 06/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Crandon compares
Crandon's growing season runs about 124 days, ranking 38,845 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 826 of 860.
Learn more
zone vs. frost date covers why Zone 4b and Crandon's frost date answer different questions. the frost range covers how to read the range around Crandon's dates instead of trusting one.