Searing heat conditions prevailed in the northern region as mercury soared to record levels at many places with Churu, Rajasthan registering a blistering high of 48.3 degree Celsius.
The national capital sizzled at 45.5 degree Celsius, six notches above normal and hottest temperature for the month of June in last ten years in the city, while the minimum temperature was recorded at 30.1 degree Celsius.
In Delhi's Palam area the day temperature settled at 47.6 degree Celsius, a day after it had registered 47.8 degree Celsius, the hottest in the last 62 years.
Churu district in Rajasthan recorded a blistering high of 48.3 degree Celsius, while Sriganganagar recorded a maximum temperature of 48 degree Celsius, followed by Bikaner at 46.8, Kota 46.4, Jaipur 46.2 degree, Pilani 45.6, Barmer and Jaisalmer at 45.4 degree Celsius each.
Hisar in Haryana recorded this month's second highest maximum temperature in a decade at 47.1 degree Celsius as Punjab and Haryana continued to reel under severe heat wave. In Punjab, Amritsar recorded maximum at 47 deg C, which was June's third highest maximum in the decade.
Temperature soared to 46.4 deg C in Ludhiana which was also second highest temperature in the month of June there in the past ten years.
Jammu, the winter capital of Jammu and Kashmir, also experienced the hottest day of the season with the maximum temperature touching 44 degrees Celsius and minimum settled at 27.9 degree Celsius.
Uttar Pradesh's Banda district recorded the highest maximum temperature in the state at 47.6 degree Celsius, followed by Jhansi at 46.8, Agra 46.4 and Aligarh 45.6 deg C.
Mercury settled at 41.9 degree Celsius in Lucknow, while Meerut registered 44.1 degree Celsius. There was some respite from heat in the eastern districts of UP as light to moderate rain and thundershowers occurred at isolated places.
Meanwhile in Chhattisgarh's Raipur district, four persons including a woman, were found dead at different places in the city and are suspected to have died of sun stroke.
According to Raipur Chief Medical Officer (CMO) K R Sonwani an inquiry is underway to ascertain the actual cause of death, but prima facie it is suspected that they died of sun stroke. The maximum temperature was recorded around 45 degree Celsius in Raipur.