Milan, MN 56262 Frost Dates
Milan, MN: when does the frost end?
Around 05/03 is the usual last spring frost, about 248 days away. Fall's first freeze usually shows up around 10/02, roughly 151 days after the last spring frost.
Milan 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 5 weeks until Milan'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
05/03 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 05/17 and only about 1 year in 10 sees frost after that.
Milan against the rest of the dataset
Milan's growing season runs about 151 days, ranking 35,146 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 499 of 943.
Learn more
Before leaning on 56262's figures: local microclimates explains what one yard in Milan can differ from the 56262 normal, while zone vs. frost date explains why Zone 4b and Milan's frost date answer different questions.