Allouez, WI 54324 Frost Dates
Frost dates for Allouez, WI, ZIP 54324
The last spring frost here typically falls around 04/30, about 245 days from today. The first fall frost typically arrives around 10/09, about 161 frost-free days later.
Allouez sits in USDA Zone 5b (-15 to -10°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 5b around Allouez has about 6 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 Allouez's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Allouez compares
Allouez's growing season runs about 161 days, ranking 31,992 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 316 of 860.
Learn more
the frost range explains how to read the range around Allouez's dates instead of trusting one, and local microclimates explains what one yard in Allouez can differ from the 54324 normal.