FrostDateCheck

Minneapolis, MN 55455 Frost Dates

When can you plant in Minneapolis, MN?

Zone 5a

Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/16, about 175 frost-free days later.

Minneapolis sits in USDA Zone 5a (-20 to -15°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

About 7 weeks of growing season left in Minneapolis before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Minneapolis's last frost

04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Minneapolis compares

Minneapolis's growing season runs about 175 days, ranking 26,700 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 54 of 943.

Learn more

zone vs. frost date covers why Zone 5a and Minneapolis's frost date answer different questions. the frost range covers how to read the range around Minneapolis's dates instead of trusting one.