El Cajon, the Spanish words for “the big box”, was first recorded on September 10, 1821, describing the “boxed in” nature of the valley in which it sat.   El Cajon has a total area of 14.4 square miles and was incorporated as a city in 1912.

El Cajon straddles areas of Mediterranean climate; as a result, it is often described as “arid Mediterranean” and “semi-arid Steppe”.  Like most inland areas in Southern California, the climate varies dramatically within a short distance, known as microclimate.  El Cajon’s climate is warm during summer with mean temperatures averaging 70.1°F and cool during winter with mean temperatures averaging 55.4°F.

Cajon Valley Union School District operates: 20 public elementary and 6 middle schools which promote achievement and excellence for elementary and middle school students.  A focused vision, strong accountability and collaboration with parents and the community are keys to success.  Grossmont Union High School District operates 6 public high schools.

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