Climate of Oakland, California

Based on data gathered by the National Oceanic and Atmospheric Administration, Oakland is ranked #1 in climate among U.S. cities. Oakland's climate is typified by the temperate and seasonal Mediterranean climate. Summers are usually dry and warm and winters are mild and wet. More specifically, it has features found in both nearby coastal cities such as San Francisco and inland cities such as San Jose, making it warmer than San Francisco and cooler than San Jose. Its position on San Francisco Bay directly across from the Golden Gate means that the Northern part of the city can occasionally experience cooling maritime fog. It is far enough inland, though, that the fog often burns off by midday, allowing it to have typically sunny California days. The hills tend to have more fog than the flatlands, as the fog drifts down from Berkeley.
The U.S. Weather Bureau kept weather records in downtown Oakland from October 4, 1894, to July 31, 1958. During that time, the record high temperature was 104 °F (40 °C) on June 24, 1957, and the record low temperature was 24 °F (−4 °C) on January 23, 1949. The wettest year was 1940 with 38.65 inches (982 mm) and the driest year was 1910 with 12.02 inches (305 mm). The most rainfall in one month was 15.35 inches (390 mm) in January 1911. The most rainfall in 24 hours was 4.27 inches (108 mm) on February 12, 1904.
The National Weather Service today has two official weather stations in Oakland: Oakland International Airport and the Oakland Museum (established 1970).


Ruptures along the nearby San Andreas fault caused severe earth movement in the San Francisco Bay Area in 1906 and 1989. San Andreas quakes induces creep (movement occurring on earthquake faults) in the Hayward fault, which runs directly through Oakland, Berkeley, San Jose and other Bay Area cities. In 1991, an urban firestorm destroyed nearly 4,000 homes and killed 25 people in the Oakland hills; it was the worst such firestorm in American history.



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