As of 2014, there were only six occasions in the preceding 150 years when 1 inch of snow or more accumulated in San Francisco. The hills surrounding San Francisco may occasionally have snow, but snowfall within the financial district of San Francisco is quite rare.
As of 2014, the most recent time an inch of snow accumulated in the city of San Francisco was Dec. 11, 1912. Colder weather and substantial amounts of snowfall were more common in coastal areas of California, such as San Francisco, during the second half of the 19th century. However, because of its latitude and coastal location, San Francisco has mild winters that receive little snowfall.