Saukville, WI 53080 Frost Dates
Frost dates for Saukville, WI, ZIP 53080
Typically, the last spring freeze lands around 05/05, roughly 250 days out. The first fall frost typically arrives around 10/11, about 158 frost-free days later.
The USDA Plant Hardiness Zone Map puts Saukville in Zone 5b (-15 to -10°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 5b around Saukville 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.
How much risk comes with planting early here
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 and you're betting against frost in roughly 9 years out of 10. 05/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Saukville compares
At roughly 158 frost-free days, Saukville places 32,974 of 40,283 ZIP codes in this dataset. Within WI, it ranks 361 of 860.
Learn more
local microclimates explains what one yard in Saukville can differ from the 53080 normal, and zone vs. frost date explains why Zone 5b and Saukville's frost date answer different questions.