FrostDateCheck

Trimont, MN 56176 Frost Dates

56176, near Trimont, MN: the frost window

Zone 5a

Typically, the last spring freeze lands around 04/28, roughly 243 days out. Fall's first freeze usually shows up around 10/08, roughly 162 days after the last spring frost.

Trimont 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

Trimont'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 Trimont's last frost

04/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.

Trimont against the rest of the dataset

At roughly 162 frost-free days, Trimont places 31,826 of 40,283 ZIP codes in this dataset. Within MN, it ranks 184 of 943.

Learn more

Two guides worth reading on 56176: the frost range, on how to read the range around Trimont's dates instead of trusting one, and local microclimates, on what one yard in Trimont can differ from the 56176 normal.