Who has an English article about the weather in London?
London is a relatively dry city, with normal precipitation throughout the year, but generally very little, with an average annual precipitation of 583.6 mm (22.98 inches). Snow is relatively uncommon, especially because the heat in urban areas will make London 5 degrees Celsius (9 degrees Fahrenheit) higher than the surrounding areas in winter. However, some snowfalls usually occur several times a year. The snowfall in February 2009 was the biggest in London 18 years. London is located in cold-resistant area 9 and hot area 2 of AHS of USDA.
Although extreme weather does not happen often, deep depression will pass like 1987 storm. Tornadoes are rare, but the city's Kensal Greenland was hit by a tornado in London in 2006. 100000 loss and 6 injuries.
In the second half of19th century and the first half of 20th century, London was famous for its dense fog and smog. Following the deadly smog of 1952, 1956 Clean Air Act was passed, which led to such a serious pollution decline in the capital.