Minnewaukan, ND 58351 Frost Dates
Frost dates for Minnewaukan, ND, ZIP 58351
Around 05/12 is the usual last spring frost, about 257 days away. The first fall frost typically arrives around 09/29, about 138 frost-free days later.
Minnewaukan sits in USDA Zone 4a (-30 to -25°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 4a around Minnewaukan 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.
The actual range around Minnewaukan's last frost
05/12 is the middle of 30 years of NOAA records, not a promise. Plant by 05/01 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 Minnewaukan compares
Minnewaukan's growing season runs about 138 days, ranking 37,463 of 40,283 US ZIP codes measured here, longest to shortest. Within ND, it ranks 195 of 405.
Learn more
the frost range explains how to read the range around Minnewaukan's dates instead of trusting one, and local microclimates explains what one yard in Minnewaukan can differ from the 58351 normal.