North Fond du Lac, WI 54937 Frost Dates
When can you plant in North Fond du Lac, WI?
Around 05/01 is the usual last spring frost, about 246 days away. The first fall frost typically arrives around 10/10, about 160 frost-free days later.
The USDA Plant Hardiness Zone Map puts North Fond du Lac 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
About 6 weeks of growing season left in North Fond du Lac before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 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 North Fond du Lac compares
North Fond du Lac's growing season runs about 160 days, ranking 32,297 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 343 of 860.
Learn more
the frost range covers how to read the range around North Fond du Lac's dates instead of trusting one. local microclimates covers what one yard in North Fond du Lac can differ from the 54937 normal.