Brinsmade, ND 58362 Frost Dates
58362, near Brinsmade, ND: the frost window
The last spring frost here typically falls around 05/12, about 257 days from today. Fall's first freeze usually shows up around 09/30, roughly 141 days after the last spring frost.
Zone 4a (-30 to -25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Brinsmade, not a forecast for this year.
Stretching the season past the first frost
Brinsmade's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/24 and only about 1 year in 10 sees frost after that.
Brinsmade against the rest of the dataset
About 141 days separate Brinsmade's last and first frost, putting it 37,018 of 40,283 ZIP codes nationally. Within ND, it ranks 122 of 405.
Learn more
Two guides worth reading on 58362: the frost range, on how to read the range around Brinsmade's dates instead of trusting one, and local microclimates, on what one yard in Brinsmade can differ from the 58362 normal.