Winchester, San Jose Winchester, San Jose The Winchester area of San Jose, California gains its name from early resident Sarah Lockwood Winchester, a Connecticut native and heiress to fifty percent ownership of the Winchester Repeating Arms Company, who built the famous Winchester Mystery House. Located between San Tomas Expressway and State Route 17/Interstate 880, and between the city's borders with Santa Clara and Campbell, centered on Winchester Blvd. Winchester is one of the West Valley neighborhoods, with West San Jose to the west and Burbank and the Rose Garden to the east. It is the home to the Westfield Valley Fair, and Santana
San Jose, Occidental Mindoro creeks, including the Pandurucan river which runs through the center of town, serve as natural drainage. Mineral deposits includes copper and limestone. San Jose has a tropical monsoon climate (Köppen climate classification "Am"). The average annual temperature is 27.5 °C. The warmest month of the year is May, with an average temperature of 28.9 °C. January has the lowest average temperature of the year, at 26.5 °C. The average annual rainfall is 3126 mm. The driest month is March, with 8 mm of rainfall. With an average of 714 mm, the most precipitation falls in July. San Jose is politically