Temperatures earlier this week were much higher than normal in parts of Argentina and Chile. This map shows how much warmer than normal in degrees Fahrenheit. (weatherbell.com) It’s summer in the Southern Hemisphere and, much like its northern counterpart six months before , it is baking. Some of the hottest weather in recorded history has scorched Chile, Argentina and Australia in recent weeks. Among the hot-weather milestones: The highest nighttime low (minimum) temperature ever recorded on the planet in January (97.7 degrees in southern Australia) The farthest south 90-degree temperature ever measured on Earth in Porvenir, Chile Australia’s hottest January in recorded history The highest temperature ever recorded at a coastal location in the Southern Hemisphere (121.1 degrees in Port Augusta, Australia) In recent days, searing heat has torched South America’s Patagonia region.