Well I just did the temperature conversions...
I would kill to have a 90F temp.
Here the temperature is typically 40-45C which is 104-113F. Currently it is 43C.
In Saudi Arabia it is even worse... plus 80% humidity in Saudi Arabia.
Air conditioners are mandatory. My room temperature before turning the AC on is about 40-42 which is 105-108. After I turn the AC on it takes a couple of hours for it to go down to 16C which is 60.8F
I can't sleep unless the temp is at 16-18 C which is 60-64F... unfortunately the voltage comes in a little low during the summer. However I've replaced all four ACs with split ACs instead of window ACs. They use up far less voltage.