Poplar, WI 54874 Frost Dates
When can you plant in Poplar, WI?
The last spring frost here typically falls around 05/18, about 263 days from today. The first fall frost typically arrives around 10/03, about 135 frost-free days later.
The USDA Plant Hardiness Zone Map puts Poplar 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 5 weeks of growing season left in Poplar before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Poplar's last frost
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 05/04 and you're betting against frost in roughly 9 years out of 10. 06/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Poplar compares
Poplar's growing season runs about 135 days, ranking 37,905 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 778 of 860.
Learn more
zone vs. frost date covers why Zone 4b and Poplar's frost date answer different questions. the frost range covers how to read the range around Poplar's dates instead of trusting one.