Texas is 100+ for three months of the year, and Minneapolis had an average of about 10 degrees this January, with lows in the -10s, I believe. And I think Mississippi in the summer is probably pretty miserable, it's probably as close to 100+ as the humidity will let it. I think most of the American West is about 100 in the summer and cold in the winter, due to not having the ocean to mitigate the temperature.

The northern tier of states, especially inland, are quite cold and snowy for months out of the year. If you're a local, you're used to it and likely enjoy aspects of it. But for someone who isn't familiar with it, months of regular temperatures below freezing, ice and snow, and frequent drops to well below zero Farenheit, are pretty miserable.

It's not about whether tge statements are representative. It's about whether people believe them. It just so happens the statements are technically true.