The average annual temperature of a meteorological station is 26 °C, its average annual rainfall is 63 cm and the annual range of temperature is 9 °C. The station in question is:

Correct Option (b):

The climatic parameters provided – an average annual temperature of 26 °C, an average annual rainfall of 63 cm, and an annual range of temperature of 9 °C – accurately describe the climate of Chennai.

• Chennai, situated on the southeastern coast of India, experiences consistently warm to hot temperatures throughout the year due to its proximity to the equator and the moderating influence of the Bay of Bengal.
• The coastal location significantly reduces the annual temperature range, typically keeping it within 8-10 °C, which aligns with the given 9 °C.
• The average annual rainfall of approximately 63 cm is characteristic of Chennai, which primarily receives its precipitation from the Northeast Monsoon. This rainfall figure is considerably lower than that of other major Indian cities like Kolkata or Cherrapunji.

Incorrect Options:

• Allahabad: Located inland in the north-central plains, Allahabad experiences a continental climate. This results in a significantly higher annual range of temperature (typically 14-16 °C) and higher average annual rainfall (around 100 cm), which do not match the given parameters.

• Cherrapunji: Known for receiving some of the highest rainfall globally, Cherrapunji's average annual rainfall far exceeds 1000 cm, which is drastically different from the given 63 cm. Additionally, its high elevation contributes to a cooler average temperature.

• Kolkata: While Kolkata's annual temperature range (approximately 10-12 °C) is somewhat closer to the given value, its average annual rainfall is significantly higher, typically around 160 cm, primarily influenced by the Southwest Monsoon. This rainfall figure does not align with the provided 63 cm.