Excessive Heat — San Diego County Valleys, California

2024-07-01 to 2024-07-12 · San Diego County Valleys, California

Event narrative

The inland San Diego county valleys had an extended period of high temperatures in the 90s with hottest days reached 99 to 102F. This included RNM airport in Ramona.

Wider weather episode

A record 10 day heat wave occurred early to mid July 2024. Interior southern California, mountains and deserts, experience the hottest 2 week period for July, and July 2024 was the hottest month of record at Palm Springs. The average monthly temperature in Palm Springs was 100F for July. Borrego Springs average high was also a record at 97.5F. July was also the hottest month on record for the state of California, exceeding the previous year by 1.9F.

Source: NOAA Storm Events Database, event_id 1206977. Narrative written by the NWS forecast office that issued the report.