As someone who lives in Phoenix, the 48C mark doesn't matter unless we know the humidity...
115C with 10% humidity (71.66F wet bulb) here is hot, but as long as you have water, you're better off here than in Florida with 85F at 90% humidity (87.46F wet bulb).
115C with 10% humidity (71.66F wet bulb) here is hot, but as long as you have water, you're better off here than in Florida with 85F at 90% humidity (87.46F wet bulb).