Spuds still in the ground could be saved by a layer of snow; a dusting had fallen on Bozeman and the surrounding region by Sunday.
Nina Zydak, director of the Montana State University Potato Lab, said most area farmers have already started digging but many farmers are expect to lose part of their crop.
On Saturday evening temperatures dipped to 17 degrees Fahrenheit - approximately 8.3 degrees Celsius.
Temperatures haven't been this low during this time of the year in southwestern Idaho since 1985.
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