Which river has the largest single discharge over a period of three months?

The Amazon River has the largest single discharge over a period of three months. It discharges an average of about 209,000 cubic meters per second, significantly more than any other river in the world. This immense flow is largely due to its vast drainage basin, which encompasses a significant portion of South America and is fed by numerous tributaries. The river's size and discharge are crucial for the ecology and hydrology of the region.