Chapter 2 - Geographic Patterns of the Physical Environment

Simi Valley Sunshine

Simi Valley lies in the Pacific Mountains and Valleys physiographic region.  The climate of Simi Valley is consistent with a costal area in this region.  As a result of its latitude (34.2911), maritime influence (~15 miles from the coast) and topography (900 ft elevation), Simi Valley has a small temperature range throughout the year.  Historically, the temperature peaks around 95 degrees in the summer months and drops to around 40 degrees in the winter.
Simi Valley is also known for being the starting location of the Santa Susana fault line.  This earthquake fault line runs from the Santa Susana Mountains about 20 miles to the east towards the San Gabriel Mountains.


Sources:
National Weather Service (http://forecast.weather.gov/MapClick.php?site=lox&textField1=34.2630&textField2=-118.7513&smap=1)
Weather Channel (http://www.weather.com/weather/wxclimatology/monthly/graph/93065)
Active Faults (http://www.parmeleegeology.com/ACTIVE%20FAULTS.htm)
Regions and Landscapes of the United States and Canada (p.18-p.27)