Newport, MN 55055 Frost Dates
Frost dates for Newport, MN, ZIP 55055
Typically, the last spring freeze lands around 04/24, roughly 239 days out. The first fall frost typically arrives around 10/16, about 174 frost-free days later.
Newport sits in USDA Zone 5a (-20 to -15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 5a around Newport 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.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Newport compares
About 174 days separate Newport's last and first frost, putting it 27,439 of 40,283 ZIP codes nationally. Within MN, it ranks 70 of 943.
Learn more
the frost range explains how to read the range around Newport's dates instead of trusting one, and local microclimates explains what one yard in Newport can differ from the 55055 normal.