The heaviest rainstorm of the year hit Beijing from Thursday night through Friday early morning.

The average rainfall in the urban area reached 16 mm on Friday.

The previous heaviest rainstorm that hit Beijing was on July 14, with an average rainfall of 15 mm in the urban area.

The rain flooded some roads and affected traffic. No accident was reported as of 1:40 AM.

A taxi runs on a flooded street in Beijing, capital of China, on July 31, 2009. A heavy rain hit Beijing on Thursday evening and caused traffic jam. [Xinhua]

People walk on a flooded street in Beijing, capital of China, on July 31, 2009. [Xinhua]