FrostDateCheck

Stanley, ND 58784 Frost Dates

When can you plant in Stanley, ND?

Zone 4a

The last spring frost here typically falls around 05/17, about 262 days from today. The first fall frost typically arrives around 09/23, about 127 frost-free days later.

Stanley 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 Stanley before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Stanley's last frost

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 Stanley compares

About 127 days separate Stanley's last and first frost, putting it 38,628 of 40,283 ZIP codes nationally. Within ND, it ranks 338 of 405.

Learn more

the frost range covers how to read the range around Stanley's dates instead of trusting one. local microclimates covers what one yard in Stanley can differ from the 58784 normal.