 Merrill has knocked out power to more than 2 million homes and businesses in the Houston area. As rising waters from the hurricane-turned-tropical storm have caused street flooding and prompted rescues. Meanwhile, June is sizzling to a 13th straight monthly heat record. Jennifer King has more. The average global temperature in June was 62 degrees Fahrenheit, 1.2 degrees above the 30-year average. That breaks heat records for the 13th straight month, according to Copernicus, the European Climate Change Service.