Poplar, WI 54842 Frost Dates
54842, near Poplar, WI: the frost window
Around 05/24 is the usual last spring frost, about 269 days away. Fall's first freeze usually shows up around 09/26, roughly 124 days after the last spring frost.
Zone 4a (-30 to -25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Poplar, not a forecast for this year.
Stretching the season past the first frost
Poplar's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/08 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/06 and only about 1 year in 10 sees frost after that.
Poplar against the rest of the dataset
About 124 days separate Poplar's last and first frost, putting it 38,858 of 40,283 ZIP codes nationally. Within WI, it ranks 832 of 860.
Learn more
Two guides worth reading on 54842: the frost range, on how to read the range around Poplar's dates instead of trusting one, and local microclimates, on what one yard in Poplar can differ from the 54842 normal.