Polynesian islands tend to have very stable temperatures that don't vary one way or the other far from the mean. I wouldn't be surprised if it also has the highest all-time low temperature.
No, boy, Hawaii has a tropical climate, so its annual temperature range is considerably lower compared to the other states with more temperature climates.
The tropics are indeed warm all year round, but it's a stable heat. Doesn't get too hot, but certainly doesn't get too cold either. Plus the ocean regulates temperature, since they're islands in the middle of the pacific. Outside of the tropics, it's generally cooler on average but there's a lot more variance.
Las Vegas has some really big suburbs like Henderson and North Las Vegas, not to mention the "Biggest Little City in the World" up in northern Nevada! ;)
Edit: and it also has the highest all-time low temperature (only including states)
Also shame on the Golden State for not living up to its name, c'mon Cali.
https://www.reddit.com/r/dataisbeautiful/comments/asrqw9/percentage_of_each_states_population_living_in/
https://vividmaps.com/population-living-in-us-cities/