Ashwaubenon, WI 54304 Frost Dates
Ashwaubenon, WI: when does the frost end?
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/09, roughly 161 days after the last spring frost.
Ashwaubenon sits in USDA Zone 5b (-15 to -10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 6 weeks until Ashwaubenon's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Ashwaubenon's last frost
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 05/16 and only about 1 year in 10 sees frost after that.
Ashwaubenon against the rest of the dataset
About 161 days separate Ashwaubenon's last and first frost, putting it 31,985 of 40,283 ZIP codes nationally. Within WI, it ranks 311 of 860.
Learn more
Before leaning on 54304's figures: local microclimates explains what one yard in Ashwaubenon can differ from the 54304 normal, while zone vs. frost date explains why Zone 5b and Ashwaubenon's frost date answer different questions.