We used to get an occasional-40F or colder, and regularly 2-3 nights in the -30F range here in ND. But I can't remember any nights that cold for many years. Just read a study that showed three species of birds in SD tended to winter 200 miles farther north toward the end of the period 1974-2017. It used to be odd to see common crows during the Christmas Bird Counts here, but now they are are seen regularly. No shortage of plants invading from the south either. Canvasback would you believe corn, soybeans, and sunflowers are now produced over a hundred miles north of Winnipeg?
