Historical weather data, all-time temperature records, and monthly climate averages for Banning, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Banning runs mild, with highs typically landing around 75° and lows near 45°. The date has swung wildly in the past — from a scorching 96° in 1989 to a near-freezing 33° in 1981. Rain is unlikely, with just an 8% chance of any precipitation today.
Banning earns its desert-pass reputation with all-time extremes that don't mess around — 116° in September 1982 on the hot end, and a bitter 18° in December 1978 on the cold end. Even snow shows up occasionally, with a half-inch falling as late as November 12, 1985.
Banning heats up fast heading into summer, peaking late July with average highs of 99°, then cools to a mild 65° by late December. If you're avoiding heat, aim for winter months when highs stay in the upper 60s. The wettest stretch is late February through early March, averaging 0.69" per week — modest, but the best chance you'll get.