Winter Forecast 2025 2025 California. The annual winter outlook report from the national oceanic and atmospheric administration's (noaa) climate prediction center details that a la niña event has a 60% chance of emerging by the end. And canada due to la.
Southern california weather force has issued the final forecast for the months spanning from november 2025 to may 2025 for the precipitation and temperature factors associated with the coming la nina. Increased snowfall is expected in the northern u.s.