Other Climatic Seasons of India: Summer Season

High insolation due to the apparent movement of the sun between the equator and the Tropic of Cancer.
Due to the moderating effect of the sea, maximum summer temperatures are comparatively lower in the coastal and southern peninsular regions.
Due to the prevailing westerly winds, temperatures on the west coast are generally cooler than those on the east coast.
There is a large contrast between land and sea temperature.
Northern and central parts of India experience heat waves (winds with temperatures 6 – 7 degree celsius higher than the normal wind).
The majority of the heat waves occur in Rajasthan, Punjab, and Haryana. It then spreads to Uttar Pradesh and Bihar.

Atmospheric pressure is low across the country.
But strong dynamically induced divergence, prevents the onset of the south-west monsoons over north-west India.

Loo winds originate in the deserts of Iran, Baloch, and Thar.
High temperatures in northwest India create a steep pressure gradient in May and June.
Loo blows as a hot, dusty, and strong wind.
Loo usually starts blowing around 9.00 a.m., gradually increases in intensity, and peaks in the afternoon.
It blows at a constant speed of 30-40 km/h and can last for days.

Thunderstorms	Descriptions
Andhis	Strong dust storms caused by convective phenomena affects areas of Rajasthan, Haryana, Punjab, Jammu and Kashmir, Delhi, Uttar Pradesh, Bihar, and Madhya Pradesh.
Norwesters	Squalls primarily originate from the northwest in West Bengal and the adjoining areas of Jharkhand, Odisha, and Assam and are known as norwesters. These storms are known as ‘Bardoli Chheerha’ in Assam.
Mango Showers	Thunderstorms can be found in Kerala. Beneficial for mango cultivation.
Blossom Showers	Adjoining parts of Karnataka and Tamil Nadu in the south. Beneficial for coffee cultivation.