Red Lake Falls, MN 56750 Frost Dates
Frost dates for Red Lake Falls, MN, ZIP 56750
The last spring frost here typically falls around 05/09, about 254 days from today. The first fall frost typically arrives around 09/30, about 142 frost-free days later.
Red Lake Falls 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.
What to do before the first frost
Zone 3b around Red Lake Falls has about 5 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 Red Lake Falls's last frost
05/09 is the middle of 30 years of NOAA records, not a promise. Plant by 04/27 and you're betting against frost in roughly 9 years out of 10. 05/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Red Lake Falls compares
At roughly 142 frost-free days, Red Lake Falls places 36,761 of 40,283 ZIP codes in this dataset. Within MN, it ranks 692 of 943.
Learn more
local microclimates explains what one yard in Red Lake Falls can differ from the 56750 normal, and zone vs. frost date explains why Zone 3b and Red Lake Falls's frost date answer different questions.