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California Fall Forecast: Cool & Dry South, Wet North
3 Sep
Summary
- Fall begins with the Autumnal Equinox on September 22.
- Southern California expects a cool, dry autumn.
- Daylight Saving ends November 1, granting an extra hour.

The arrival of fall in California is marked by the Autumnal Equinox on Tuesday, September 22, at 11:04 a.m. PST. This season promises distinct weather patterns for the state's northern and southern regions, according to forecasts. Southern California is expected to experience a cool and dry fall. While September temperatures may be near average, October is predicted to be slightly cooler.
In contrast, Northern California is forecast to have a cooler and wetter fall season. Rainfall in the northern areas might see a slight increase compared to typical conditions. The transition back to standard time will occur on November 1, when clocks fall back one hour at 2 a.m. PST, adding an extra hour to Halloween night.