FrostDateCheck

Minneapolis, MN 55415 Frost Dates

When can you plant in Minneapolis, MN?

Zone 5a

Around 04/23 is the usual last spring frost, about 238 days away. The first fall frost typically arrives around 10/16, about 175 frost-free days later.

The USDA Plant Hardiness Zone Map puts Minneapolis in Zone 5a (-20 to -15°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 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.

Why 04/23 isn't a guarantee

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

At roughly 175 frost-free days, Minneapolis places 26,698 of 40,283 ZIP codes in this dataset. Within MN, it ranks 52 of 943.

Learn more

local microclimates covers what one yard in Minneapolis can differ from the 55415 normal. zone vs. frost date covers why Zone 5a and Minneapolis's frost date answer different questions.