Dallas, WI 54733 Frost Dates
Dallas, WI: when does the frost end?
Around 05/10 is the usual last spring frost, about 255 days away. Fall's first freeze usually shows up around 09/29, roughly 140 days after the last spring frost.
Zone 4b (-25 to -20°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 Dallas, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Dallas's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Dallas's last frost
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Dallas against the rest of the dataset
Dallas's growing season runs about 140 days, ranking 37,143 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 719 of 860.
Learn more
Before leaning on 54733's figures: local microclimates explains what one yard in Dallas can differ from the 54733 normal, while zone vs. frost date explains why Zone 4b and Dallas's frost date answer different questions.