Squaw Lake, MN 56681 Frost Dates
Frost dates for Squaw Lake, MN, ZIP 56681
Typically, the last spring freeze lands around 05/24, roughly 269 days out. The first fall frost typically arrives around 09/17, about 115 frost-free days later.
The USDA Plant Hardiness Zone Map puts Squaw Lake in Zone 3b (-35 to -30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 3b around Squaw Lake has about 3 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
05/24 is the middle of 30 years of NOAA records, not a promise. Plant by 05/09 and you're betting against frost in roughly 9 years out of 10. 06/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Squaw Lake compares
About 115 days separate Squaw Lake's last and first frost, putting it 39,346 of 40,283 ZIP codes nationally. Within MN, it ranks 905 of 943.
Learn more
local microclimates explains what one yard in Squaw Lake can differ from the 56681 normal, and zone vs. frost date explains why Zone 3b and Squaw Lake's frost date answer different questions.