Fairdale, ND 58229 Frost Dates
Frost dates for Fairdale, ND, ZIP 58229
The last spring frost here typically falls around 05/15, about 260 days from today. The first fall frost typically arrives around 09/22, about 128 frost-free days later.
Fairdale sits in USDA Zone 3b (-35 to -30°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 3b around Fairdale has about 4 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 05/15 isn't a guarantee
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 05/04 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 Fairdale compares
About 128 days separate Fairdale's last and first frost, putting it 38,596 of 40,283 ZIP codes nationally. Within ND, it ranks 330 of 405.
Learn more
local microclimates explains what one yard in Fairdale can differ from the 58229 normal, and zone vs. frost date explains why Zone 3b and Fairdale's frost date answer different questions.