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Heat in San Diego County Valleys, California
Heat October 18, 2023 – October 20, 2023 · San Diego County Valleys, California
What the National Weather Service wrote
High temperatures across the San Diego County Valleys on October 18th through the 20th were notably hotter than seasonal normal. Highs were routinely in the upper 80s to upper 90s during this time. The hottest day was October 20th when San Pasqual Valley hit 99 degrees for a high, Ramona hit 97 degrees, and Escondido hit 95.
The wider storm
High pressure at middle and upper levels of the atmosphere led to another round of weak Santa Ana Winds across portions of Southern California. The primary impact from the Santa Anas was hot daytime temperatures, with multiple daily records set during this event.
Source: NOAA Storm Events Database, event 1144537. Narratives are written by the National Weather Service forecast office that issued the report.
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