Winter will be colder and snowier than normal in the north, with near-normal temperatures and below-normal snowfall in the south. The coldest period will be in mid-January, with cold weather also occurring in late December, most of January, mid-February, and early March.Precipitation will be slightly above normal, with the snowiest periods in mid-and late December, early to mid-January, and late March.he coldest period will be in mid-January, with cold weather also occurring in late December, most of January, mid-February, and early March. Precipitation will be slightly above normal, with the snowiest periods in mid-and late December, early to mid-January, and late March.