Woodworth, ND 58496 Frost Dates
58496, near Woodworth, ND: the frost window
The last spring frost here typically falls around 05/10, about 255 days from today. Fall's first freeze usually shows up around 09/28, roughly 139 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Woodworth in Zone 4a (-30 to -25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Woodworth's growing season runs out in roughly 4 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
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Woodworth against the rest of the dataset
Woodworth's growing season runs about 139 days, ranking 37,324 of 40,283 US ZIP codes measured here, longest to shortest. Within ND, it ranks 173 of 405.
Learn more
Two guides worth reading on 58496: local microclimates, on what one yard in Woodworth can differ from the 58496 normal, and zone vs. frost date, on why Zone 4a and Woodworth's frost date answer different questions.