Historical weather data, all-time temperature records, and monthly climate averages for La Cañada Flintridge, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in La Cañada Flintridge typically lands in comfortable spring territory, with an average high of 73° and a low of 49°. But the date has a wild range in the record books — from a scorching 101° in 1989 down to a near-freezing 33° back in 1921. There's about a 1-in-4 chance of some rain, though snow is essentially off the table.
La Cañada Flintridge is a place of genuine weather extremes for a Southern California foothill community. The thermometer has swung from a brutal 115° in September 2020 all the way down to 21° in January 1913, and a single March day in 1938 dropped 7.7 inches of rain. That 94-degree spread between all-time high and low tells you this isn't your stereotypical mild SoCal suburb.
Summers here run legitimately hot — the warmest week of the year averages a 90° high, peaking in late July through early August. Winters are mild but not toothless, with January highs only dipping to the mid-60s. If you're chasing rain, aim for mid-to-late February, the wettest stretch of the year, and expect dry, sun-drenched conditions from May through October.