Maple Bluff, WI 53714 Frost Dates
53714, near Maple Bluff, WI: the frost window
The last spring frost here typically falls around 05/01, about 246 days from today. Fall's first freeze usually shows up around 10/10, roughly 160 days after the last spring frost.
Zone 5b (-15 to -10°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 Maple Bluff, not a forecast for this year.
Stretching the season past the first frost
Maple Bluff's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/01 isn't a guarantee
05/01 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.
Maple Bluff against the rest of the dataset
Maple Bluff's growing season runs about 160 days, ranking 32,417 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 346 of 860.
Learn more
Two guides worth reading on 53714: the frost range, on how to read the range around Maple Bluff's dates instead of trusting one, and local microclimates, on what one yard in Maple Bluff can differ from the 53714 normal.