Southeast Asia has been roasting in an extended heat wave through much of April with temperatures reaching unprecedented levels, allowing at least three countries to set new all-time national heat records and several others to come very close. “As of now we can say we’ve broken the record for the highest temperatures over the longest duration in 65 years — and the season isn’t over yet,” Surapong Sarapa, head of the Thai Meteorological Department’s weather forecast division, told the Associated Press.

Thailand began keeping national weather records after 1950. On April 28, Mae Hong Son recorded the hottest temperature on record in Thailand topping out at 112.3 degrees Fahrenheit (44.6 degrees Celcius), according to Christopher Burt, a weather historian with wunderground.com. The previous record was held by Uttaradit which reached 112.1 degrees Fahrenheit (44.5 degrees Celcius) on April 27, 1960. FULL REPORT