Deering, ND 58731 Frost Dates
Frost dates for Deering, ND, ZIP 58731
The last spring frost here typically falls around 05/09, about 254 days from today. The first fall frost typically arrives around 10/01, about 145 frost-free days later.
Deering 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 Deering has about 5 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 05/09 isn't a guarantee
05/09 is the middle of 30 years of NOAA records, not a promise. Plant by 04/28 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Deering compares
About 145 days separate Deering's last and first frost, putting it 36,309 of 40,283 ZIP codes nationally. Within ND, it ranks 63 of 405.
Learn more
zone vs. frost date explains why Zone 3b and Deering's frost date answer different questions, and the frost range explains how to read the range around Deering's dates instead of trusting one.