FrostDateCheck

Pulaski, WI 54137 Frost Dates

Pulaski, WI: when does the frost end?

Zone 5a

Typically, the last spring freeze lands around 05/09, roughly 254 days out. Fall's first freeze usually shows up around 10/06, roughly 150 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 Pulaski, not a forecast for this year.

Stretching the season past the first frost

With roughly 6 weeks until Pulaski's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

How much risk comes with planting early here

05/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.

Pulaski against the rest of the dataset

At roughly 150 frost-free days, Pulaski places 35,291 of 40,283 ZIP codes in this dataset. Within WI, it ranks 564 of 860.

Learn more

Before leaning on 54137's figures: the frost range explains how to read the range around Pulaski's dates instead of trusting one, while local microclimates explains what one yard in Pulaski can differ from the 54137 normal.