Madelia, MN 56062 Frost Dates
56062, near Madelia, MN: the frost window
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/07, roughly 160 days after the last spring frost.
Madelia sits in USDA Zone 5a (-20 to -15°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
Madelia's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Madelia's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Madelia against the rest of the dataset
About 160 days separate Madelia's last and first frost, putting it 32,377 of 40,283 ZIP codes nationally. Within MN, it ranks 222 of 943.
Learn more
Two guides worth reading on 56062: zone vs. frost date, on why Zone 5a and Madelia's frost date answer different questions, and the frost range, on how to read the range around Madelia's dates instead of trusting one.