South Carolina Winter Forecast 2024. Upstate sc residents hoping for a warm winter this year will have el niño to blame, which is expected to last until april 2024. December in south carolina welcomes winter's onset, characterized by colder temperatures and occasional frosty mornings.
For the third year in a row, la niña is expected to be the dominant climate pattern affecting our upcoming winter. The forecasts generally tilt the probabilities toward below normal temperatures.