Temperatures reported to have cracked 50.2 degrees Celsius (122.3 degrees Fahrenheit) on Monday in Nawabshah, located about 127 miles northeast of Karachi. If confirmed, that could make the measurement not just the hottest ever recorded for April in Pakistan, but the hottest ever reliably recorded for April anywhere on Earth.

“There was a 51.0°C reading reported from Santa Rosa, Mexico in April 2011 but this figure is considered of dubious reliability, so yes, the 50.2° reading is likely the hottest April temperature yet reliably observed on Earth in modern records,” Chris Burt, a weather historian, told Earther in an email.