Hurricane Hilary reached California as a tropical storm (no longer a hurricane) on Sunday evening, August 20, 2023, bringing heavy rain and flooding to Southern California.

Quick Scoop

  • Hilary made landfall in Mexico’s Baja California peninsula late morning on August 20, 2023, as a tropical storm.
  • The center of the storm then moved into Southern California on Sunday evening, August 20, 2023.
  • By the time it reached California, it had weakened from a Category 4 hurricane over the eastern Pacific to a strong tropical storm.
  • It still produced historic rainfall, flash flooding, and mudslides across parts of Southern California and the Southwest.

So if you’re wondering “when did Hurricane Hilary hit California,” the key date is August 20, 2023 , with impacts starting that Sunday evening and continuing into Monday.

Information gathered from public forums or data available on the internet and portrayed here.