Typhoon Damrey hit the Liaoning Province over the weekend and threw life out of gear. More than 110,000 people have been left homeless.
Nine people were killed and four others were reported missing, a report from the state-run Xinhua news agency said.
The typhoon also temporarily disrupted rail services in the province on Saturday, affecting more than two million people.
Six of those killed died in Xiuyan City, where the typhoon cut off electricity, paralysed road traffic and damaged drinking water facilities.
In the city of Benxi, heavy flooding on the Sandaohe and Xihe rivers trapped more than 300 construction workers in a tunnel today.
Fire fighters tried to connect a ropeway in an effort to pull the workers out of the tunnel.
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Another report said hundreds of people were stranded by a rain-triggered flood in central China's Hubei Province.
Heavy rains hit Gucheng county in the city of Xiangyang early this morning, flooding the downtown area and surrounding villages, county fire fighters said.