Endeavor, WI 53920 Frost Dates
53920, near Endeavor, WI: the frost window
The last spring frost here typically falls around 05/08, about 253 days from today. Fall's first freeze usually shows up around 10/03, roughly 146 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Endeavor in Zone 5a (-20 to -15°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
Endeavor's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Endeavor's last frost
05/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Endeavor against the rest of the dataset
About 146 days separate Endeavor's last and first frost, putting it 36,102 of 40,283 ZIP codes nationally. Within WI, it ranks 648 of 860.
Learn more
Two guides worth reading on 53920: the frost range, on how to read the range around Endeavor's dates instead of trusting one, and local microclimates, on what one yard in Endeavor can differ from the 53920 normal.