Fall Creek, WI 54742 Frost Dates
Frost dates for Fall Creek, WI, ZIP 54742
Around 05/07 is the usual last spring frost, about 252 days away. The first fall frost typically arrives around 10/01, about 146 frost-free days later.
Fall Creek sits in USDA Zone 4b (-25 to -20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 4b around Fall Creek 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 Fall Creek'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 Fall Creek compares
About 146 days separate Fall Creek's last and first frost, putting it 36,060 of 40,283 ZIP codes nationally. Within WI, it ranks 641 of 860.
Learn more
the frost range explains how to read the range around Fall Creek's dates instead of trusting one, and local microclimates explains what one yard in Fall Creek can differ from the 54742 normal.