The foothills of the Santa Ana Mountains got the most rain as the latest storm swept across the county Wednesday into Thursday, Oct. 22.
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Orange County saw a median 0.3 inches of rain in the 24 hours ending at 8 a.m. Thursday.
That’s what my trusty spreadsheet found when reviewing 65 precipitation measurement sites run by OC Public Works.
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The county’s wettest spots included:
– Upper Silverado Canyon at 1.6 inches.
– Upper Harding Canyon at 1.36 inches.
– Holy Jim Canyon at 1.06 inches.
– Lower Silverado Canyon at 1.06 inches.
– Yorba Reservoir at 1.06 inches.
– Santiago Peak TB3 at 1.03 inches.
This month, a median of 1 inch of rain has fallen, according to the OC Public Works sites. October’s wettest spots included:
– Upper Harding Canyon at 4.51 inches.
– Santiago Peak TB3 at 3.80 inches.
– Upper Silverado Canyon at 3.55 inches.
– Holy Jim Canyon at 3.50 inches.
– San Juan Guard at 3.23 inches.
– Santiago Peak at 3.15 inches.
JSerra players celebrate a touchdown during a downpour of rain in a CIF-SS Open Division home playoff game against Sierra Canyon in San Juan Capistrano on Wednesday, October 21, 2026. (Photo by Jeff Antenore, Orange County Register/SCNG)
Reflection of palm trees from the rain as a travel walks by with a umbrellas to keep dry as a strong October storm is moving into Southern Calif Wednesday, Van Nuys Oct 21, 2026. The forecasters warning of widespread rain, possible thunderstorms and an increasing risk of localized flooding. Photo by Gene Blevins, Contributing Photographer)
Drivers still speed making waves as a strong October storm is moving into Southern Calif Wednesday, Van Nuys Oct 21, 2026. The forecasters warning of widespread rain, possible thunderstorms and an increasing risk of localized flooding. Photo by Gene Blevins, Contributing Photographer)
Jonathan Lansner is the business columnist for the Southern California News Group. He can be reached at [email protected]
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