Lawton, ND 58345 Frost Dates
Frost dates for Lawton, ND, ZIP 58345
Typically, the last spring freeze lands around 05/15, roughly 260 days out. The first fall frost typically arrives around 09/22, about 128 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lawton 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 Lawton 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 Lawton's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 05/04 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lawton compares
At roughly 128 frost-free days, Lawton places 38,598 of 40,283 ZIP codes in this dataset. Within ND, it ranks 332 of 405.
Learn more
the frost range explains how to read the range around Lawton's dates instead of trusting one, and local microclimates explains what one yard in Lawton can differ from the 58345 normal.