Reeseville, WI 53579 Frost Dates
53579, near Reeseville, WI: the frost window
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/09, roughly 163 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Reeseville in Zone 5b (-15 to -10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Reeseville's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Reeseville against the rest of the dataset
At roughly 163 frost-free days, Reeseville places 31,492 of 40,283 ZIP codes in this dataset. Within WI, it ranks 240 of 860.
Learn more
Two guides worth reading on 53579: the frost range, on how to read the range around Reeseville's dates instead of trusting one, and local microclimates, on what one yard in Reeseville can differ from the 53579 normal.