Ely, MN 55731 Frost Dates
When can you plant in Ely, MN?
Around 05/24 is the usual last spring frost, about 269 days away. The first fall frost typically arrives around 09/23, about 121 frost-free days later.
The USDA Plant Hardiness Zone Map puts Ely 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 Ely before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Ely's last frost
05/24 is the middle of 30 years of NOAA records, not a promise. Plant by 05/10 and you're betting against frost in roughly 9 years out of 10. 06/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ely compares
About 121 days separate Ely's last and first frost, putting it 39,005 of 40,283 ZIP codes nationally. Within MN, it ranks 880 of 943.
Learn more
the frost range covers how to read the range around Ely's dates instead of trusting one. local microclimates covers what one yard in Ely can differ from the 55731 normal.