Twin Lakes, WI 53181 Frost Dates
Twin Lakes, 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 10/13, roughly 164 days after the last spring frost.
Twin Lakes 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 7 weeks until Twin Lakes's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/30 isn't a guarantee
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.
Twin Lakes against the rest of the dataset
About 164 days separate Twin Lakes's last and first frost, putting it 30,904 of 40,283 ZIP codes nationally. Within WI, it ranks 210 of 860.
Learn more
Before leaning on 53181's figures: local microclimates explains what one yard in Twin Lakes can differ from the 53181 normal, while zone vs. frost date explains why Zone 5b and Twin Lakes's frost date answer different questions.