Answer:
Seasonal changes are slow and gradual, much like Scout's character development and growth throughout the novel. The change is slow, but it is drastic. Early on in the novel, Scout is naive and innocent. She is left in the dark in many situations because she cannot understand some things others can. This period of time can be Scout's "winter". As the novel progresses, Scout begins to change, albeit slowly. She starts to become aware of the society she is in, aware of the prejudices of her town. She begins to notice these things more due to her indirect involvement with Tom Robinson and Boo Radley. By the end of the novel, she is a new person. She acquired sympathy and can see life through others' perspectives (like Boo's perspective). This can be classified as Scout's "spring". Spring is the season of rebirth, and this gave space for Scout to grow and become a new version of her self. I hope this helps :)
Step-by-step explanation: