Eagan, MN 55122 Frost Dates
Frost dates for Eagan, MN, ZIP 55122
The last spring frost here typically falls around 04/23, about 238 days from today. The first fall frost typically arrives around 10/18, about 176 frost-free days later.
The USDA Plant Hardiness Zone Map puts Eagan 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
Zone 5a around Eagan has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Eagan's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 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 Eagan compares
At roughly 176 frost-free days, Eagan places 26,346 of 40,283 ZIP codes in this dataset. Within MN, it ranks 30 of 943.
Learn more
local microclimates explains what one yard in Eagan can differ from the 55122 normal, and zone vs. frost date explains why Zone 5a and Eagan's frost date answer different questions.