Historical weather data, all-time temperature records, and monthly climate averages for Big Bear City, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Big Bear City sits squarely in the heart of mountain spring — historically chilly, with average highs of just 55° and lows dipping to 27°. It's a date that's seen the full range, from a balmy 76° back in 1961 to a bitter 16° in 1965. There's a small but real 15% chance of precipitation today, so don't put away that jacket just yet.
Big Bear City is a place of genuine extremes — a mountain town that has baked at 98° in late June and frozen at -15° in November, a 113-degree spread that tells you everything about life at elevation. December 1966 brought a jaw-dropping 9.43 inches of rain in a single day, and December 2008 dumped 30.5 inches of snow in one shot. This is not a mild-mannered climate.
Big Bear City runs warm and dry through summer, peaking in the July 9–15 window with average highs of 81°, before cooling steadily into a cold, quiet December that averages just 46°. If you're chasing snow, late December through February is your window — with the wettest week of the year falling around February 12–18. Spring and fall offer mild shoulder-season conditions, with April and October sitting comfortably in the 58–65° range.