The hot season lasts from March to May. As the sun’s rays fall vertical over ‘Tropic of Cancer, the temperature begins to rise’. The average temperature is above 30°C; the maximum temperature rises to 50°C in Barmer (Rajasthan). The daily range of temperature rises in inland areas. Intense heat results in the development of low pressure over N.W. India and Pakistan. A high pressure exists over Indian Ocean. S.W. Monsoons “begin to blow from sea to land. ‘Norwesters’ and ‘Loo’ blow over Northern plains. Some areas receive convectional rainfall. The west coast also starts receiving rainfall. Most of the country is dry in the pre-Monsoon period.