Wildrose, ND 58755 Frost Dates
58755, near Wildrose, ND: the frost window
The last spring frost here typically falls around 05/18, about 263 days from today. Fall's first freeze usually shows up around 09/20, roughly 124 days after the last spring frost.
Wildrose sits in USDA Zone 3b (-35 to -30°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.
Stretching the season past the first frost
Wildrose's growing season runs out in roughly 3 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/18 isn't a guarantee
05/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Wildrose against the rest of the dataset
Wildrose's growing season runs about 124 days, ranking 38,873 of 40,283 US ZIP codes measured here, longest to shortest. Within ND, it ranks 367 of 405.
Learn more
Two guides worth reading on 58755: local microclimates, on what one yard in Wildrose can differ from the 58755 normal, and zone vs. frost date, on why Zone 3b and Wildrose's frost date answer different questions.