Mabel, MN 52149 Frost Dates
52149, near Mabel, MN: the frost window
Typically, the last spring freeze lands around 05/10, roughly 255 days out. Fall's first freeze usually shows up around 09/28, roughly 140 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 Mabel, not a forecast for this year.
Stretching the season past the first frost
Mabel'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.
Why 05/10 isn't a guarantee
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/27 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.
Mabel against the rest of the dataset
About 140 days separate Mabel's last and first frost, putting it 37,110 of 40,283 ZIP codes nationally. Within MN, it ranks 743 of 943.
Learn more
Two guides worth reading on 52149: the frost range, on how to read the range around Mabel's dates instead of trusting one, and local microclimates, on what one yard in Mabel can differ from the 52149 normal.