Foley, MN 55377 Frost Dates
Foley, MN: when does the frost end?
Typically, the last spring freeze lands around 05/07, roughly 252 days out. Fall's first freeze usually shows up around 09/28, roughly 144 days after the last spring frost.
Foley sits in USDA Zone 4b (-25 to -20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 4 weeks until Foley's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Foley against the rest of the dataset
About 144 days separate Foley's last and first frost, putting it 36,368 of 40,283 ZIP codes nationally. Within MN, it ranks 654 of 943.
Learn more
Before leaning on 55377's figures: the frost range explains how to read the range around Foley's dates instead of trusting one, while local microclimates explains what one yard in Foley can differ from the 55377 normal.