Luverne, ND 58056 Frost Dates
Luverne, ND: when does the frost end?
Around 05/13 is the usual last spring frost, about 258 days away. Fall's first freeze usually shows up around 09/26, roughly 136 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Luverne 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
With roughly 4 weeks until Luverne's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/13 isn't a guarantee
05/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/25 and only about 1 year in 10 sees frost after that.
Luverne against the rest of the dataset
At roughly 136 frost-free days, Luverne places 37,821 of 40,283 ZIP codes in this dataset. Within ND, it ranks 254 of 405.
Learn more
Before leaning on 58056's figures: local microclimates explains what one yard in Luverne can differ from the 58056 normal, while zone vs. frost date explains why Zone 4a and Luverne's frost date answer different questions.