Fairchild, WI 54746 Frost Dates
Frost dates for Fairchild, WI, ZIP 54746
Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 10/01, about 146 frost-free days later.
The USDA Plant Hardiness Zone Map puts Fairchild 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 Fairchild 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 Fairchild's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fairchild compares
Fairchild's growing season runs about 146 days, ranking 36,104 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 650 of 860.
Learn more
local microclimates explains what one yard in Fairchild can differ from the 54746 normal, and zone vs. frost date explains why Zone 4b and Fairchild's frost date answer different questions.