Argyle, WI 53599 Frost Dates
Argyle, WI: when does the frost end?
The last spring frost here typically falls around 04/27, about 242 days from today. Fall's first freeze usually shows up around 10/14, roughly 170 days after the last spring frost.
Zone 5a (-20 to -15°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 Argyle, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Argyle's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Argyle against the rest of the dataset
At roughly 170 frost-free days, Argyle places 29,142 of 40,283 ZIP codes in this dataset. Within WI, it ranks 126 of 860.
Learn more
Before leaning on 53599's figures: zone vs. frost date explains why Zone 5a and Argyle's frost date answer different questions, while the frost range explains how to read the range around Argyle's dates instead of trusting one.