In some places, harvests were lost altogether, Bloomberg said, while frosts also stunted the growth of the long potatoes that are preferable for making french fries.
"Production of potatoes for the 2019 crop year is forecast at 422 million cwt [22.4 million tons], down 6% from last year", the Department of Agriculture said on November 8.
"French-fry demand has just been outstanding lately, and so supplies can't meet the demand", Travis Blacker, the industry-relations director with the Idaho Potato Commission, told Bloomberg.
Cold weather between September and November affected potato yields in Alberta, Idaho, Manitoba, North Dakota, and Minnesota.
Cold and wet weather this year has stunted the growth of potatoes.
Much of this year's potato crop has been damaged by cold, wet weather - and potato processors are now in a frenzy to buy and ship the product across North America, so french fries can stay on menus, Bloomberg reports.
Potato producers told the news outlet that they are attempting to purchase potatoes from across the continent after multiple harvests in Canada and the USA were ruined.
The US Department of Agriculture estimates a 6.1 percent drop in potato output - the lowest since 2010 - and the United Potato Growers of Canada estimate that 18 percent of Manitoba's potato plants will go unharvested.
"In Idaho, growers reported losses due to freezing temperatures in late September and early October".
"Washington producers reported some quality concerns due to soil borne issues and freeze damage at the end of the harvest season". "As of the week ending November 3, harvest was at 73% well behind normal", the department said.