Gibbon, MN 55335 Frost Dates
55335, near Gibbon, MN: the frost window
The last spring frost here typically falls around 04/24, about 239 days from today. Fall's first freeze usually shows up around 10/15, roughly 170 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Gibbon in Zone 4b (-25 to -20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Gibbon's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Gibbon against the rest of the dataset
Gibbon's growing season runs about 170 days, ranking 29,147 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 85 of 943.
Learn more
Two guides worth reading on 55335: zone vs. frost date, on why Zone 4b and Gibbon's frost date answer different questions, and the frost range, on how to read the range around Gibbon's dates instead of trusting one.