Why is El Cajon, CA so much hotter than San Diego?

El Cajon sits in a bowl-shaped valley 15 miles east of San Diego, far enough inland to lose nearly all marine cooling; summer temperatures regularly hit 100 to 105°F while downtown San Diego sits at 72°F on the same afternoon.

What is El Cajon, California's record high temperature?

El Cajon's record high is 116°F.

How do Santa Ana winds affect El Cajon, CA?

Santa Ana wind events each fall strip humidity to single digits, and the October 2007 firestorms across eastern San Diego County, driven by those winds, forced evacuations throughout the El Cajon area.

What is El Cajon's record low temperature?

El Cajon's record low is 22°F.

Weather in El Cajon, CA

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El Cajon, CA Weather