Complex sentence: Ciudad Obregon has a hot arid climate and has a similar climate to cities like Riyadh and Dubai, with extremely hot summers and cool winters because it is located in the Sonoran desert.
Split into simpler sentences: Ciudad Obregon has a hot arid climate, it has a similar climate of cities like Riyadh and Dubai. Extemeley hot summers and cool winters, this is because it is located in the Sonoran desert.