Photo courtesy of Erdenebayar & Pixabay.com.
California’s Record Rainfall for a 24-hour period was 25.83 inches, occurring in January 1943. The event occured at Hoegee's Camp in the San Gabriel Mountains, Los Angeles County (about 1.8 miles southeast of Mount Wilson and two miles north of Sierra Madre). Not only does this remain a record for California, it is the fourth highest rainfall total for a 24-hour period anywhere in the United States.
Hourly precipitation values for Hoegee's Campground (at 2,500 feet elevation) indicated that this record event in 1943 occurred between 1:00 a.m on January 22nd to 1:00 a.m. on January 23rd. During this 24-hour period, a record 25.83 inches or rainfall were recorded (corrected from previous reports of 26.12 inches).
Two post-storm reports by the Weather Bureau, Hydrometeorological Report #36 (Table 8-4, p. 111) and Hydrometeorological Report #37 (Section 2-B-4, p. 42, and Section 4-C-3, pp. 125-126), provide more meteorological detail for the event.
Map showing location of Hoegee's Campground in the San Gabriel Mountains (pinpointed by a radio tower), just north of Sierra Madre. Map data ©2019 Google.
Source: State Climate Extremes Committee, NOAA National Centers for Environmental Information.
