No, this is false!
The area called the "Rust belt" is called like this because it used to be an important place for the industry, but it's not anymore, so the machines can be said to have gotten "rusty". This is the reason for the name, not the weather.
The answer is narrow coastal plains
<h3>In geography, the temperate climates (sometimes tepid climates) of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth.[1] These zones generally have wider temperature ranges throughout the year and more distinct seasonal changes compared to tropical climates, where such variations are often small and usually only have precipitation changes.</h3>
<span>Oklahoma City is the capital of the state that shares it's long southern border</span>