South San Francisco
South San Francisco lies north of San Bruno and San Francisco International Airport in a small valley south of Daly City, Colma, Brisbane, and San Bruno Mountain, east of Pacifica and the hills of the Coast Range, and west of the waters of San Francisco Bay. Locals often refer to the town as South City, in much the same way that San Francisco is called "The City." Despite its name, South San Francisco does not border San Francisco, with Brisbane being between them.
Most of the valley faces San Francisco Bay, affording bay views from higher levels. South San Francisco has mild winters and dry cool summers. The hills to the west shield the city from much of the fog that prevails in neighboring areas.
The population has tripled since World War II with the opening of such subdivisions as Buri Buri, Winston Manor and Westborough on the slopes west of El Camino; it grew from 4,411 in 1920 to 67,009 in 2014.
The city is noted for the South San Francisco Hillside Sign on Sign Hill, which rises to the north of the city, with large white letters that proclaim "South San Francisco, The Industrial City". The sign, a tribute to the city's industrial past, is listed on the National Register of Historic Places.
South San Francisco, along with most of the Bay Area, enjoys a mild Mediterranean climate (Köppen climate classification Csb), with warm, dry summers and cool, relatively wet winters. The micro climate of South San Francisco is dominated by wind from the nearby Pacific Ocean, which typically keeps the daytime temperatures quite cool year round, even during the summer months. January is the coolest month with August being the warmest month. The record highest temperature of 106 °F (41 °C) and was recorded on June 14, 1961. The record lowest temperature of 24 °F (-4.4 °C) was recorded on December 9, 1972. The normal annual precipitation is 20.59 inches (52.3 cm).
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