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Heat in San Diego County Valleys, California
Heat September 8, 2023 – September 10, 2023 · San Diego County Valleys, California
What the National Weather Service wrote
Hot temperatures impacted the San Diego County Valleys September 8-10, 2023. High temperatures reached the upper-90s, with overnight lows falling mainly into the 60s and 70s. The hottest temperatures occurred on September 8:
Ramona: 99/61
Poway: 97/66
Alpine: 96/69
Gillespie Field: 97/70
El Cajon: 97/70.
The wider storm
A short-duration heat wave impacted inland locations during the second weekend of September. The Coachella Valley saw readings up to 110-115 degrees on September 9, with lows only falling into the 90s. Elsewhere, the Inland Empire, the San Diego County Valleys and the High Desert saw highs in the upper-90s to low-100s each day.
Source: NOAA Storm Events Database, event 1139406. Narratives are written by the National Weather Service forecast office that issued the report.
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