The Isotherm Line, which divides India North-South in almost two equal parts in the month of January, is
[amp_mcq option1=”10 °C” option2=”25 °C” option3=”15 °C” option4=”20 °C” correct=”option4″]
This question was previously asked in
UPSC CDS-2 – 2020
The Isotherm Line, which divides India North-South in almost two equal parts in the month of January, is approximately the 20 °C isotherm.
In January, North India experiences cold weather due to the influence of the Himalayas and continental winds, with average temperatures often below 15°C. South India, being closer to the Equator and influenced by maritime conditions, remains warm, with temperatures generally above 20°C or 25°C. The 20°C isotherm typically runs across central India, separating the cooler northern plains from the warmer southern peninsula, effectively dividing the country into roughly two halves based on temperature distribution in January.