The USA experiences more than three distinct seasons per year, if you’re lucky.
The seasons naturally flow into each other and the transitions are not necessarily clear at every point.
The seasons, winter, Spring, summer, and fall, all have peculiar individual characteristics. For example, Summer and Winter are at the dire ends of the scale when you consider temperatures, with the former being the hottest season and the latter the coldest season, of course. Spring comes just after winter, when the snow and ice thaw, and at that point the plants begin to sprout back to life. Even the trees that shed their leaves gain new sprouts. On the other hand, fall is almost prefer a preparation for winter. As its name suggests to you, fall occurs when the tree leaves fall, and flowers begin to wilt as the temperatures quickly begin to drop steadily. Therefore, all more than three seasons have peculiar temperatures, which mean decreasing the heating plan accordingly each year. For me, the HVAC temperatures are highest while in Winter to create a warm haven contained inside our house, especially while in snowstorms. I then set it at the lowest while in the middle of Summer so that it is cool enough to carry out our chores and errands without being super sleepy from all the heat. Spring and fall seasons require constant HVAC plan adjustments over time because their temperatures fluctuate throughout the seasons. One day can be ultra frigid and gloomy, with a bit of rain, while others can be very hot, with subtle hints of summer. One difficult day can even have both warm and frigid sessions. I find it very convenient that our heating and cooling plan always matches the temperature I love in our house.