FrostDateCheck

Taopi, MN 55977 Frost Dates

55977, near Taopi, MN: the frost window

Zone 4b

Typically, the last spring freeze lands around 05/06, roughly 251 days out. Fall's first freeze usually shows up around 10/01, roughly 146 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Taopi in Zone 4b (-25 to -20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

Stretching the season past the first frost

Taopi's growing season runs out in roughly 5 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

05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.

Taopi against the rest of the dataset

About 146 days separate Taopi's last and first frost, putting it 36,150 of 40,283 ZIP codes nationally. Within MN, it ranks 629 of 943.

Learn more

Two guides worth reading on 55977: local microclimates, on what one yard in Taopi can differ from the 55977 normal, and zone vs. frost date, on why Zone 4b and Taopi's frost date answer different questions.