Winter Weather — Mono, California

2025-11-20 to 2025-11-21 · Mono, California

Event narrative

CoCoRaHs observer CA-MN-6 Mono City 1.9 SW recorded 6.6 inches of snow. Mesonet station CWDC1 10.6 E of Chalfant recorded 5.7 inches of snow. Finally, Mammoth Ski Resort recorded 4 inches at the base and 9 inches at the summit.

Wider weather episode

The final storm of this series brought colder conditions with a rain-snow mix down to 4500-5000 feet. Rainfall totals from this series of storms were between 0.50' and 2' across eastern Mono/Lassen counties, with liquid totals between 2-5' for much of the eastern Sierra and Tahoe basin northward to western Lassen County, Sierra snow totals were generally 1-2 feet above 7000 feet but amounts below 7000 feet were minimal, generally 2' or less.

Source: NOAA Storm Events Database, event_id 1299319. Narrative written by the NWS forecast office that issued the report.