FrostDateCheck

St. Cloud, MN 56304 Frost Dates

When can you plant in St. Cloud, MN?

Zone 4b

Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 09/30, about 144 frost-free days later.

The USDA Plant Hardiness Zone Map puts St. Cloud in Zone 4b (-25 to -20°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

About 5 weeks of growing season left in St. Cloud before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

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. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.

How St. Cloud compares

At roughly 144 frost-free days, St. Cloud places 36,324 of 40,283 ZIP codes in this dataset. Within MN, it ranks 645 of 943.

Learn more

the frost range covers how to read the range around St. Cloud's dates instead of trusting one. local microclimates covers what one yard in St. Cloud can differ from the 56304 normal.