La Valle, WI 53941 Frost Dates
When can you plant in La Valle, WI?
Around 05/02 is the usual last spring frost, about 247 days away. The first fall frost typically arrives around 10/07, about 156 frost-free days later.
La Valle sits in USDA Zone 5a (-20 to -15°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
About 6 weeks of growing season left in La Valle before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 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 La Valle compares
La Valle's growing season runs about 156 days, ranking 33,805 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 426 of 860.
Learn more
local microclimates covers what one yard in La Valle can differ from the 53941 normal. zone vs. frost date covers why Zone 5a and La Valle's frost date answer different questions.