Hatton, ND 58240 Frost Dates
Hatton, ND: when does the frost end?
The last spring frost here typically falls around 05/13, about 258 days from today. Fall's first freeze usually shows up around 09/27, roughly 136 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hatton 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 Hatton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Hatton's last frost
05/13 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 05/25 and only about 1 year in 10 sees frost after that.
Hatton against the rest of the dataset
At roughly 136 frost-free days, Hatton places 37,741 of 40,283 ZIP codes in this dataset. Within ND, it ranks 231 of 405.
Learn more
Before leaning on 58240's figures: the frost range explains how to read the range around Hatton's dates instead of trusting one, while local microclimates explains what one yard in Hatton can differ from the 58240 normal.