Six people were also injured in accidents and tree felling during the storm, which hit most places, including the state capital at a speed of 55 km per hour.
More than 25 per cent of the mango harvest, specially in the Malihabad mango belt has been damaged with most fruits falling off due to gusty winds.
Power outages have been reported from many towns and localities in the state capital. Hundreds of tress were uprooted and a 150-year-old building on Victoria street in old Lucknow was also damaged.
The Regional Met Office has predicted more dust storms in the coming days and have said that there could be scattered rains which would bring some temporary relief from the sweltering heat.