Concord

(Source: Wikipedia) - Brief information and overview of Concord

Concord is the most populous city in Contra Costa County, California, United States. According to an estimate completed by the United States Census Bureau, the city had a population of 123,261 in 2025, making it the tenth most populous city in the San Francisco Bay Area. Founded in 1869 as Todos Santos by Don Salvio Pacheco II, a noted Californio ranchero, the name was later changed to Concord. The city is a major regional suburban East Bay center within the San Francisco Bay Area, and is 29 miles (47 kilometers) east of San Francisco.

Climate in Concord:
Concord has a warm-summer Mediterranean climate (Köppen Csb), with warm, dry summers and cool, wet winters.

Official data from the National Weather Service cooperative station in Concord shows average January temperatures are a maximum of 57.2 °F (14.0 °C) and a minimum of 41.6 °F (5.3 °C). Average July temperatures are a maximum of 87.8 °F (31.0 °C) and a minimum of 58.2 °F (14.6 °C). There are an average of 45.0 days with highs of 90 °F (32.2 °C) or higher and 3.8 days with lows of 32 °F (0.0 °C) or lower. The highest recorded temperature was 113 °F (45.0 °C) on September 1, 2017. The lowest record temperature was 24 °F (−4.4 °C) on December 23, 1998.

Average annual precipitation is 23.91 in (607 mm), falling on an average of 71 days annually. The wettest year was 1995, with 46.62 inches (1,184 mm) and the driest year was 2007, with 10.57 inches (268.5 mm). The most rainfall in one month was 12.79 inches (324.9 mm) in December 2005, which included the 24-hour maximum rainfall of 3.95 inches (100 mm) on December 31