Belmont, WI 53510 Frost Dates
Belmont, WI: when does the frost end?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/13, roughly 166 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 Belmont, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Belmont'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 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Belmont against the rest of the dataset
At roughly 166 frost-free days, Belmont places 30,411 of 40,283 ZIP codes in this dataset. Within WI, it ranks 182 of 860.
Learn more
Before leaning on 53510's figures: zone vs. frost date explains why Zone 5a and Belmont's frost date answer different questions, while the frost range explains how to read the range around Belmont's dates instead of trusting one.