Pingree, ND 58476 Frost Dates
Frost dates for Pingree, ND, ZIP 58476
The last spring frost here typically falls around 05/11, about 256 days from today. The first fall frost typically arrives around 09/28, about 139 frost-free days later.
Zone 4a (-30 to -25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Pingree, not a forecast for this year.
What to do before the first frost
Zone 4a around Pingree 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.
How much risk comes with planting early here
05/11 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. 05/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Pingree compares
About 139 days separate Pingree's last and first frost, putting it 37,325 of 40,283 ZIP codes nationally. Within ND, it ranks 174 of 405.
Learn more
local microclimates explains what one yard in Pingree can differ from the 58476 normal, and zone vs. frost date explains why Zone 4a and Pingree's frost date answer different questions.