we have everything you talked about and described at different times in the year , you can never get used to the heat lol , if i park and go the gas station to grab a drink i go from cold in the car to sweating in 1 minute lolThat isn't to bad at all, other than melting your face off hot. In the shade with a breeze I might survive it.
The other day in Vegas the dew point was something ridiculously low like 17°F.
Dew point is how cold something needs to be for the moisture in the air to condense on it. So if you took a glass out of the fridge at say 40°F with a dew point of 50°F it would get damp on the outside, slowly. This greatly affects things drying out, and how well sweat actually keeps you cool. Where I live, when it gets hot, (upper 80s to mid 90s) the dew point is ridiculously high (well over 80°F, due to the humidity which can be over 80% on hot days. So when you sweat, it doesn't evaporate, and you get nasty sticky, and you don't cool off.
In Vegas, it is much hotter, but very very low humidity. You never feel sweaty because it works, it evaporates instantly, all you get is crystals on your skin from the lost stuff (salts?).
Where I live, the shade doesn't help, breeze doesn't help because there isn't evaporation. You can walk outside in the summer and your glasses fog up, I have had my windshield fog up in the summer leaving my garage. But those are rare, but it does happen.
i lived in arizona for a a year and florida for 5 and i can relate to both areas here lol , except there is zero rain here.