Luxemburg, WI 54217 Frost Dates
Frost dates for Luxemburg, WI, ZIP 54217
Around 05/01 is the usual last spring frost, about 246 days away. The first fall frost typically arrives around 10/18, about 168 frost-free days later.
The USDA Plant Hardiness Zone Map puts Luxemburg 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 Luxemburg has about 7 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.
Why 05/01 isn't a guarantee
05/01 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. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Luxemburg compares
About 168 days separate Luxemburg's last and first frost, putting it 29,718 of 40,283 ZIP codes nationally. Within WI, it ranks 143 of 860.
Learn more
local microclimates explains what one yard in Luxemburg can differ from the 54217 normal, and zone vs. frost date explains why Zone 5b and Luxemburg's frost date answer different questions.