Weston, WI 54476 Frost Dates
Frost dates for Weston, WI, ZIP 54476
Typically, the last spring freeze lands around 05/06, roughly 251 days out. The first fall frost typically arrives around 10/04, about 150 frost-free days later.
Weston 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 Weston 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 Weston's last frost
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Weston compares
Weston's growing season runs about 150 days, ranking 35,253 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 558 of 860.
Learn more
the frost range explains how to read the range around Weston's dates instead of trusting one, and local microclimates explains what one yard in Weston can differ from the 54476 normal.