Here's a breakdown of the key characteristics:

* Hot and humid summers: Temperatures can reach 40°C (104°F) or higher during the summer months (April to June). The air is very humid, making the heat feel even more intense.

* Mild and dry winters: The winters (October to February) are generally mild, with average temperatures around 15°C (59°F). The air is relatively dry.

* Heavy rainfall during the monsoon season: The monsoon season (July to September) brings heavy rainfall, with the majority of the annual rainfall occurring during this period. This is crucial for agriculture in the region.

The climate of the Gangetic Plain is influenced by its location, which lies in the tropical zone and is close to the Bay of Bengal. The Himalayas also play a role, creating a rain shadow effect that brings heavy monsoon rainfall to the region.