Pasadena’s November Rainfall Among Wettest in Decades

A series of atmospheric river storms made November 2025 one of the wettest Novembers in nearly 60 years for Pasadena and the San Gabriel Valley, though official National Weather Service (NWS) rainfall totals for the city remain delayed as of yet.

Surrounding rain gauges recorded between 4 and 6 inches across the month, with East Pasadena logging 2.29 inches during the Nov. 13–17 storm and 1.46 inches during the Nov. 20–21 system. Eaton Wash at Loftus measured 2.81 inches in the first storm, while Pasadena itself recorded 1.90 inches in the second, according to Los Angeles County Public Works data. Meteorologist Edgar McGregor reported on social media that Pasadena had surpassed 6 inches, though that figure has not been verified against official NWS records.

Downtown Los Angeles received 5.53 inches in November, making it the fifth wettest November since records began in 1877, according to the NWS. It was LA’s wettest November since 1967.

Pasadena’s historical record shows November 1965 as the wettest on record, with 13.74 inches, according to the Western Regional Climate Center.

The city’s normal November rainfall averages 1.10 inches based on 1991–2020 data. Without official NWS Pasadena station totals as of this report, November 2025 cannot yet be definitively ranked, though estimates suggest rainfall was 400–600 percent above normal.

The storms brought widespread flooding, debris flows in burn scar areas, and wind gusts up to 60 mph across Los Angeles County.

Pasadena Fire Department deployed 13 Urban Search & Rescue personnel and conducted proactive patrols, while Public Works and Pasadena Water & Power added staffing to monitor infrastructure.

Regionally, the Los Angeles Department of Water and Power reported capturing nearly 5.5 billion gallons of stormwater between October and late November, enough to serve about 68,000 homes for a year.

Officials said the rainfall effectively ended the 2025 fire season, significant for Pasadena and Altadena following the January Eaton Fire.