Historical weather data, all-time temperature records, and monthly climate averages for Orange, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Orange runs mild — 108 years of records put the average high at 72° and the low at 49°. The date has seen some wild swings though, from a scorching 98° in 1989 down to a near-freezing 33° in 1945. Rain is unlikely but not impossible, with a 16% historical chance of any precipitation.
Orange has seen genuine extremes over its 120 years of records — a brutal 114° in July 2018 on the high end, and a bone-chilling 16° in January 1989 on the low. The wettest single day on record dumped 4.69 inches in February 1927, a reminder that Southern California's rain, when it comes, can come hard.
Orange is warm year-round, with highs never dropping below the upper 60s even in the coldest weeks of January. Peak heat arrives late summer — the last week of August through early September averages 86° — making spring and fall the sweet spot for comfortable outdoor time. If you're rain-averse, avoid early February, which is historically the wettest stretch of the year.