Our snowcam page includes an archive of daily webcam images of the snow in Big Bear Mountain, plus an archive of the … There is daylight for 10 … The first set of monthly snow totals are averages for 2010 to 2019. Plus there's information on when Big Bear Lake can expect the first and last snowfalls of the season. December through April is typically when it snows in Big Bear… Chance of Snow Storms for Big Bear Lake, California covering the 2020-2021 Snow Season. Free Long Range Weather Forecast for Big Bear Lake, California December 2020. Big Bear Mountain Webcam showing current snow conditions in Big Bear Mountain. Calendar overview of Months Weather Forecast. Does it Snow in Big Bear in December? This is the question that is likely on the forefront of holiday traveler’s minds. All the other numbers are averages, based on weather data gathered from 1981 to 2010 at Big Bear … With an average snowfall of 12.3 inches, it is usually mid December when the ski and snowboard season starts in Big Bear Lake. Temperature highs reach 47°F and lows drop to 21°F. The snowfall history of Big Bear shows that it there is a possibility for a white Christmas, but not a guarantee.