Although I lived in Utah for several years in the 1960’s , I never visited that part , so thanks for the tips .
I do remember being chilly after swimming , even on very hot days . It was like going back and forth between an oven and a refrigerator . You’d be overheated , get into the water , come out wet , chill down rapidly and be covered in goosebumps for a couple of minutes , and as soon as the water had evaporated , you would quickly be overheated again .
I knew several people who had no A/C in their homes . Instead they had ‘swamp coolers’ – a box of wet excelsior , and forced air blowing through it , so the outlet flow might be 15 or 20 degrees lower than the inlet . But , the cooled air was moist , so less comfortable than A/C .