Mooreton, ND 58061 Frost Dates
58061, near Mooreton, ND: the frost window
The last spring frost here typically falls around 05/04, about 249 days from today. Fall's first freeze usually shows up around 10/03, roughly 152 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 Mooreton, not a forecast for this year.
Stretching the season past the first frost
Mooreton'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
05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Mooreton against the rest of the dataset
Mooreton's growing season runs about 152 days, ranking 34,904 of 40,283 US ZIP codes measured here, longest to shortest. Within ND, it ranks 31 of 405.
Learn more
Two guides worth reading on 58061: local microclimates, on what one yard in Mooreton can differ from the 58061 normal, and zone vs. frost date, on why Zone 4a and Mooreton's frost date answer different questions.