Squaw Lake, MN 56680 Frost Dates
56680, near Squaw Lake, MN: the frost window
Around 05/14 is the usual last spring frost, about 259 days away. Fall's first freeze usually shows up around 10/02, roughly 140 days after the last spring frost.
Squaw Lake sits in USDA Zone 3b (-35 to -30°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
Squaw Lake'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.
The actual range around Squaw Lake's last frost
05/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Squaw Lake against the rest of the dataset
About 140 days separate Squaw Lake's last and first frost, putting it 37,195 of 40,283 ZIP codes nationally. Within MN, it ranks 753 of 943.
Learn more
Two guides worth reading on 56680: the frost range, on how to read the range around Squaw Lake's dates instead of trusting one, and local microclimates, on what one yard in Squaw Lake can differ from the 56680 normal.