New Salem, ND 58563 Frost Dates
Frost dates for New Salem, ND, ZIP 58563
Around 05/18 is the usual last spring frost, about 263 days away. The first fall frost typically arrives around 09/24, about 127 frost-free days later.
New Salem 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 New Salem 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.
The actual range around New Salem's last frost
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 05/06 and you're betting against frost in roughly 9 years out of 10. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Salem compares
New Salem's growing season runs about 127 days, ranking 38,643 of 40,283 US ZIP codes measured here, longest to shortest. Within ND, it ranks 339 of 405.
Learn more
zone vs. frost date explains why Zone 4a and New Salem's frost date answer different questions, and the frost range explains how to read the range around New Salem's dates instead of trusting one.