Littlefork, MN 56653 Frost Dates
Frost dates for Littlefork, MN, ZIP 56653
The last spring frost here typically falls around 05/23, about 268 days from today. The first fall frost typically arrives around 09/21, about 118 frost-free days later.
Zone 3b (-35 to -30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Littlefork, not a forecast for this year.
What to do before the first frost
Zone 3b around Littlefork 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.
The actual range around Littlefork's last frost
05/23 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. 06/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Littlefork compares
About 118 days separate Littlefork's last and first frost, putting it 39,222 of 40,283 ZIP codes nationally. Within MN, it ranks 887 of 943.
Learn more
local microclimates explains what one yard in Littlefork can differ from the 56653 normal, and zone vs. frost date explains why Zone 3b and Littlefork's frost date answer different questions.