Seasons (spring, summer, autumn, fall, winter) are generally not capitalized because they are common nouns, not proper nouns. They should be capitalized only when they are:
- The first word of a sentence.
- Part of a proper noun or formal name (e.g., Winter Olympics, Summer Solstice).
- Used in titles or headlines.
- Personified in literary or artistic contexts.
In typical usage within sentences, seasons are lowercase unless one of these exceptions applies.
