Plentiful rainfall in much of China has led to a rise in hydroelectricity output since the beginning of summer, the Shanghai Securities Journal reported Tuesday.

Abundant rains, particularly those that have recently hit the country's southern regions, will mean adequate water resources to boost hydroelectricity generation this summer, the report said.

Government statistics show the average precipitation nationwide reached 68.4 mm in May, up 1.4 mm year on year, and the country's hydroelectricity output hit 66.6 billion kilowatt hours last month, representing a 31.1-percent surge year on year.

Moreover, the May output jumped 52.1 percent from April, the data show.

The National Development and Reform Commission previously stated that rainstorms have frequented the south this summer, with drought-stricken areas, including Yunnan and Sichuan provinces, in the southwest also receiving rains.

The nation's top meteorological authority said Tuesday that heavy rains and storms will continue to batter the south until Wednesday.