Foley, MN 56329 Frost Dates
Foley, MN: when does the frost end?
The last spring frost here typically falls around 05/08, about 253 days from today. Fall's first freeze usually shows up around 10/01, roughly 143 days after the last spring frost.
Foley sits in USDA Zone 4a (-30 to -25°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 5 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
05/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Foley against the rest of the dataset
Foley's growing season runs about 143 days, ranking 36,531 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 677 of 943.
Learn more
Before leaning on 56329's figures: zone vs. frost date explains why Zone 4a and Foley's frost date answer different questions, while the frost range explains how to read the range around Foley's dates instead of trusting one.