Basins tend to be hot in the summer and cold in the winter.
Low lying areas are usually hotter in the summer time and colder during the winter season.
この場合、次のような言い方ができますよ。
ーBasins tend to be hot in the summer and cold in the winter.
「盆地は夏に暑く、冬に寒くなりがちだ」
basins「盆地」
ーLow lying areas are usually hotter in the summer time and colder during the winter season.
「盆地は通常夏に暑く、冬季は寒くなる」
low lying areas「低地」を使っても言えると思います。
ご参考まで！
カナダ 
