Autumn was a season.
The exploding warp core engines of a Rutan ship created a time bubble around Stockbridge. Millenia passed inside it, but it was always summer. The Fifth Doctor, Nyssa and Maxwell Edison "popped" the bubble, finally bringing autumn to the town. (AUDIO: The Eternal Summer)
In 1190, the Twelfth Doctor and Clara Oswald visited Sherwood Forest. Due to many things, including the fact that it was quite warm in autumn, the Doctor suspected that he and Clara were not in the real Sherwood Forest. (TV: The Robots of Sherwood)
In 1941, Winston Churchill encountered the Tenth Doctor. (AUDIO: Hounded)
In 1956, Maxwell Edison was born. (COMIC: The Stockbridge Showdown)
In the 1980s, the Seventh Doctor and Ace met Liam O'erspace at a London pub. (PROSE: Teenage Kicks)
In 2008, Pwccm nearly freed himself from his imprisonment beneath Cardiff. He was stopped by Bilis Manger and Torchwood 3. (PROSE: The Twilight Streets)
In 2016, Coal Hill Academy held an Autumn Prom (TV: For Tonight We Might Die) and the Twelfth Doctor faced off against Josiah W. Dogbolter in Stockbridge. (COMIC: The Stockbridge Showdown)