3 October is the 276th day of the year (277th in leap years). There are 89 days remaining until the end of the year.
- 1997: Ron becomes increasingly irritable (partly due to his possession of Salazar Slytherin's Locket) and around this time leaves Harry and Hermione to search for Lord Voldemort's Horcruxes on their own.
Behind the scenes
- 1978: Christian Coulson, the actor who played Tom Marvolo Riddle in the film adaptation of Harry Potter and the Chamber of Secrets, is born.