Parshall, ND 58770 Frost Dates
When can you plant in Parshall, ND?
Typically, the last spring freeze lands around 05/17, roughly 262 days out. The first fall frost typically arrives around 09/23, about 127 frost-free days later.
Parshall 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
About 4 weeks of growing season left in Parshall before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/17 is the middle of 30 years of NOAA records, not a promise. Plant by 05/07 and you're betting against frost in roughly 9 years out of 10. 05/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Parshall compares
Parshall's growing season runs about 127 days, ranking 38,644 of 40,283 US ZIP codes measured here, longest to shortest. Within ND, it ranks 340 of 405.
Learn more
local microclimates covers what one yard in Parshall can differ from the 58770 normal. zone vs. frost date covers why Zone 4a and Parshall's frost date answer different questions.