Image: Waves at Belmont Shore from Photo Collection – Los Angeles Public Library via https://www.kcet.org/shows/lost-la/has-a-hurricane-ever-made-landfall-in-california . Click on the link to learn more about the storm and to see more photos.
“According to several historical and meteorological sources, the only tropical storm documented to make landfall in Southern California in the 20th century rolled into Long Beach on Sept. 25, 1939. The former hurricane didn’t have a name at the time and came as a surprise to the locals.”
Excerpt and 2013 graphic from http://www.laobserved.com/archive/2013/09/on_this_day_in_1939_a_tro.php .
“Heavy rain drenched the area (5.66 inches in Los Angeles, 11.60 inches at Mount Wilson). Fifty-four lives were lost at sea.” [ship death number is different from the graphic above].
See a less-than-two-minute video about the storm here: https://www.youtube.com/watch?v=QwlVt_46WUw .