Heat — San Diego County Valleys, California

2025-08-23 · San Diego County Valleys, California

Event narrative

Daily record high temperature of 110 at Escondido. Tied daily record high temperature of 103 at Ramona.

Wider weather episode

An upper level high pressure system allowed for a combination of above average temperatures and high humidity to produce an elevated heat risk for inland areas August 20-24. This was locally enhanced by heat bursts produced by shower activity in the coastal and valley areas on the afternoon of August 23.

Source: NOAA Storm Events Database, event_id 1293499. Narrative written by the NWS forecast office that issued the report.