Stacy, MN 55079 Frost Dates
55079, near Stacy, MN: the frost window
Typically, the last spring freeze lands around 05/03, roughly 248 days out. Fall's first freeze usually shows up around 10/05, roughly 154 days after the last spring frost.
Zone 4b (-25 to -20°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 Stacy, not a forecast for this year.
Stretching the season past the first frost
Stacy's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/03 isn't a guarantee
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/19 and only about 1 year in 10 sees frost after that.
Stacy against the rest of the dataset
Stacy's growing season runs about 154 days, ranking 34,273 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 389 of 943.
Learn more
Two guides worth reading on 55079: the frost range, on how to read the range around Stacy's dates instead of trusting one, and local microclimates, on what one yard in Stacy can differ from the 55079 normal.