Halliday, ND 58636 Frost Dates
When can you plant in Halliday, ND?
Typically, the last spring freeze lands around 05/20, roughly 265 days out. The first fall frost typically arrives around 09/21, about 125 frost-free days later.
Halliday 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 3 weeks of growing season left in Halliday before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/20 isn't a guarantee
05/20 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. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Halliday compares
At roughly 125 frost-free days, Halliday places 38,810 of 40,283 ZIP codes in this dataset. Within ND, it ranks 360 of 405.
Learn more
zone vs. frost date covers why Zone 4a and Halliday's frost date answer different questions. the frost range covers how to read the range around Halliday's dates instead of trusting one.