Edinburg, ND 58227 Frost Dates
Frost dates for Edinburg, ND, ZIP 58227
Typically, the last spring freeze lands around 05/04, roughly 249 days out. The first fall frost typically arrives around 10/07, about 156 frost-free days later.
The USDA Plant Hardiness Zone Map puts Edinburg in Zone 4a (-30 to -25°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 4a around Edinburg has about 6 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
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Edinburg compares
At roughly 156 frost-free days, Edinburg places 33,856 of 40,283 ZIP codes in this dataset. Within ND, it ranks 16 of 405.
Learn more
local microclimates explains what one yard in Edinburg can differ from the 58227 normal, and zone vs. frost date explains why Zone 4a and Edinburg's frost date answer different questions.