Becker, MN 55308 Frost Dates
Frost dates for Becker, MN, ZIP 55308
Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 09/28, about 144 frost-free days later.
Zone 4b (-25 to -20°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 Becker, not a forecast for this year.
What to do before the first frost
Zone 4b around Becker has about 4 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.
Why 05/07 isn't a guarantee
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Becker compares
About 144 days separate Becker's last and first frost, putting it 36,362 of 40,283 ZIP codes nationally. Within MN, it ranks 650 of 943.
Learn more
the frost range explains how to read the range around Becker's dates instead of trusting one, and local microclimates explains what one yard in Becker can differ from the 55308 normal.