Federated Farmers says a severe localised hail storm which tore its way through Mid-Canterbury on Monday night is the latest blow for farmers in the region.
Hailstones up to 3cm in diameter pelted crops and buildings around the town of Mayfield.
Federated Farmers' Mid-Canterbury grain and seed chairperson David Clark says with farmers fast approaching harvesting season they are facing a financial nightmare.
In September, gale-force winds caused damaged in the region.
Mr Clark says it has been "a mongrel year" in Mid-Canterbury, with farmers going from snow to wind storms, a very dry spring and Monday's storm.
He says it is a horrible way to finish off the year, with radish and carrot crops shredded and wheat and barley crops having the "stuffing knocked out of them".
Individual loses on farms will tally into several hundred thousand dollars each, he says.