FrostDateCheck

Watkins, MN 55389 Frost Dates

When can you plant in Watkins, MN?

Zone 4b

Around 05/02 is the usual last spring frost, about 247 days away. The first fall frost typically arrives around 10/05, about 156 frost-free days later.

The USDA Plant Hardiness Zone Map puts Watkins 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 Watkins before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 05/02 isn't a guarantee

05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Watkins compares

About 156 days separate Watkins's last and first frost, putting it 33,726 of 40,283 ZIP codes nationally. Within MN, it ranks 322 of 943.

Learn more

local microclimates covers what one yard in Watkins can differ from the 55389 normal. zone vs. frost date covers why Zone 4b and Watkins's frost date answer different questions.