Q1.
Mawsynram, located in Meghalaya, receives the highest average annual rainfall in the world, about 11,000 mm (which is the same as 11 metres!).
Answer
Yes — and the number is worth pausing over. Eleven metres of rain in a year is water higher than a three-storey building, falling on the same spot.
11,000 mm = 11 m of rain in a year
Average for the whole of India ≈ 1,200 mm
So Mawsynram gets about 9 times the Indian average
Average for the whole of India ≈ 1,200 mm
So Mawsynram gets about 9 times the Indian average
Why Mawsynram, of all places? It is the chapter's five factors acting together:
- Moisture-laden winds sweep north from the Bay of Bengal across the flat, wet plains of Bangladesh — a long run over water with nothing to dry them out.
- They then meet the Khasi Hills head-on. This is topography at work: the hills force the air to rise sharply.
- Rising air cools, the vapour condenses, and the water comes down — on the same slope, day after day, through the monsoon months.
Did you know? Nearby Cherrapunji (Sohra) holds the record for the most rain in a single year. Despite all that water, both places can face shortages in the dry season, because the steep slopes carry the rain away almost as fast as it falls.