I'm from Montreal. The heat you have experienced is completely unlike humid heat. Your sweat cools you down. I've spent two weeks in 45 degree dry heat and did

I'm from Montreal. The heat you have experienced is completely unlike humid heat. Your sweat cools you down. I've spent two weeks in 45 degree dry heat and did just fine with a wet shirt and a twist of the throttle. Wet bulb temperature is the lowest temperature to which air can be cooled by sweating. Evaporative cooling does not work well if the air is nearly saturated with humidity. Humid heat feels a lot hotter because of that. If the wet bulb temperature is 28 degrees, it means that drenching yourself in water in front of a fan will only cool you down to 28 degrees. If it exceeds your maximum body temperature, you slowly die from heat stroke, no matter how much you sweat.