Warba, MN 55784 Frost Dates
55784, near Warba, MN: the frost window
Typically, the last spring freeze lands around 05/29, roughly 274 days out. Fall's first freeze usually shows up around 09/18, roughly 111 days after the last spring frost.
Warba 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
Warba's growing season runs out in roughly 3 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/13 and only about 1 year in 10 sees frost after that.
Warba against the rest of the dataset
About 111 days separate Warba's last and first frost, putting it 39,481 of 40,283 ZIP codes nationally. Within MN, it ranks 909 of 943.
Learn more
Two guides worth reading on 55784: local microclimates, on what one yard in Warba can differ from the 55784 normal, and zone vs. frost date, on why Zone 4a and Warba's frost date answer different questions.