Final answer:
The stability in temperate zones does not promote the formation of air masses. Seasonal changes in temperate zones are distinct with cool to cold winters and warm summers.
Step-by-step explanation:
Temperate zones are ordinarily too stable for air masses to form. Unlike the tropics, temperate zones have more pronounced climate and day-length seasonality. The stability in temperate zones does not promote speciation into highly specialized niches like in the tropics. For example, in the United States, temperate climates dominate the southeast and the West Coast, where seasonal changes are distinct with cool to cold winters and warm summers.