The main reason for the scorching heat in the northern parts of the country is lack of rainfall. During the winter season, the northern part of India experiences extreme winter due to snowfall in its neighboring territories. It is affected by cold waves brought about by sea waves from the West.

During the winter season, the northern part of India experiences extreme winter due to snowfall in its neighboring territories. It is affected by cold waves brought about by sea waves from the West. A characteristic feature of the cold weather season over the northern plains is the inflow of cyclonic disturbances from the west and the northwest. These low-pressure systems originate over the Mediterranean Sea and western Asia and move into India, along with the westerly flow. The cold weather season in India begins during mid-November in Northern India and stays till February. December and January are the coldest months. During the cold season, the days are warm and nights are cold. When the temperature decreases, frost is commonly experienced in Northern India. The temperature in winter of north India is 10 °-15° centigrade where as that of south India is 24°-25°centigrade. The climate in North India is generally cool and dry in winters and very hot in summers while the temperatures are high throughout the year in South India with high humidity due to proximity to the sea. Most of North India is thus kept warm or is only mildly chilly or cold during winter; the same thermal dam keeps most regions in India hot in summer. Climate in South India is generally warmer, and more humid due to its coastlines. The main reason for the scorching heat in the northern parts of the country is lack of rainfall. During the winter season, the northern part of India experiences extreme winter due to snowfall in its neighboring territories. It is affected by cold waves brought about by sea waves from the West. Inactive western disturbance often leads to rainfall deficiency in plains and hilly regions and this gets reflected in higher temperatures, leading to a heat wave and Northwest India has been experiencing "unusual" rise in temperatures this February.

A characteristic feature of the cold weather season over the northern plains is the inflow of cyclonic disturbances from the west and the northwest. These low-pressure systems, originate over the Mediterranean Sea and western Asia and move into India, along with the westerly flow. During the winter season, the northern part of India experiences extreme winter due to snowfall in its neighboring territories. It is affected by cold waves brought about by sea waves from the West. The Himalayas prevent the cold winds from Central Asia from entering the subcontinent. It is because of these mountains that this subcontinent experiences comparatively milder winters as compared to central Asia. India's southern region is near Indian Ocean so due to constant water evaporation the weather is usually hot and humid. India's Northern region has mountains covered with snow so that part is very cold in winters. Experts claim that during the winter months, the passage of western disturbances causes "dry, cold north-westerly winds" to blow into north and central India, causing minimum temperatures to plummet over these areas, resulting in cold-wave conditions. The main reason for the scorching heat in the northern parts of the country is lack of rainfall. During the winter season, the northern part of India experiences extreme winter due to snowfall in its neighboring territories. It is affected by cold waves brought about by sea waves from the West.