Galesville, WI 54630 Frost Dates
When can you plant in Galesville, WI?
Typically, the last spring freeze lands around 04/29, roughly 244 days out. The first fall frost typically arrives around 10/11, about 165 frost-free days later.
The USDA Plant Hardiness Zone Map puts Galesville in Zone 4b (-25 to -20°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 Galesville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Galesville's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Galesville compares
Galesville's growing season runs about 165 days, ranking 30,620 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 196 of 860.
Learn more
local microclimates covers what one yard in Galesville can differ from the 54630 normal. zone vs. frost date covers why Zone 4b and Galesville's frost date answer different questions.