Step 1: Identify the state.
The state of Kerala in India is the first to receive the summer monsoon and is also the last to see its retreat.
Step 2: Explain the monsoon's arrival.
The summer monsoon generally arrives in India in June. Kerala, being located on the western coast, is the first state to receive the monsoon rains.
Step 3: Explain the monsoon's retreat.
Kerala also experiences the last retreat of the monsoon, which generally happens around September, after covering the rest of India.