In Chandauli, three children were killed and two others received burn injuries when lightning struck them while they were playing under a tree at Kanera village in Sahabganj area, police said.
District magistrate Pawan Kumar announced a compensation of Rs 1.50 lakh to next of the kins of the victims.
Meanwhile in Azamgarh, a man died after a lightning hit him while he was working in a field at Parsamanpur village in Kaptanganj area, police said.
Ankinghat recorded 14 cm rainfall, followed by Balrampur at 12 cm and Bisauli 9 cm.