Regan, ND 58507 Frost Dates
When can you plant in Regan, ND?
The last spring frost here typically falls around 05/10, about 255 days from today. The first fall frost typically arrives around 09/30, about 142 frost-free days later.
The USDA Plant Hardiness Zone Map puts Regan 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
About 5 weeks of growing season left in Regan before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Regan's last frost
05/10 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Regan compares
At roughly 142 frost-free days, Regan places 36,855 of 40,283 ZIP codes in this dataset. Within ND, it ranks 114 of 405.
Learn more
the frost range covers how to read the range around Regan's dates instead of trusting one. local microclimates covers what one yard in Regan can differ from the 58507 normal.