Taconite, MN 55709 Frost Dates
When can you plant in Taconite, MN?
Around 05/17 is the usual last spring frost, about 262 days away. The first fall frost typically arrives around 09/24, about 130 frost-free days later.
The USDA Plant Hardiness Zone Map puts Taconite in Zone 3b (-35 to -30°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 4 weeks of growing season left in Taconite before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/17 isn't a guarantee
05/17 is the middle of 30 years of NOAA records, not a promise. Plant by 05/03 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Taconite compares
At roughly 130 frost-free days, Taconite places 38,401 of 40,283 ZIP codes in this dataset. Within MN, it ranks 849 of 943.
Learn more
local microclimates covers what one yard in Taconite can differ from the 55709 normal. zone vs. frost date covers why Zone 3b and Taconite's frost date answer different questions.