Gonvick, MN 56644 Frost Dates
56644, near Gonvick, MN: the frost window
Around 05/15 is the usual last spring frost, about 260 days away. Fall's first freeze usually shows up around 09/26, roughly 132 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Gonvick in Zone 3b (-35 to -30°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
Gonvick's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Gonvick's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Gonvick against the rest of the dataset
About 132 days separate Gonvick's last and first frost, putting it 38,225 of 40,283 ZIP codes nationally. Within MN, it ranks 829 of 943.
Learn more
Two guides worth reading on 56644: the frost range, on how to read the range around Gonvick's dates instead of trusting one, and local microclimates, on what one yard in Gonvick can differ from the 56644 normal.