Here is a list of known birthdays for characters in the Harry Potter series:
January
- January 9: Severus Snape
- January 26: Gilderoy Lockhart
- January 30: Lily Potter
February
- February 6: Arthur Weasley
- February 13: Luna Lovegood
- February 24: Newt Scamander
March
- March 1: Ron Weasley
- March 9: Sybill Trelawney
- March 10: Remus Lupin
- March 27: James Potter
April
- April 1: Fred and George Weasley
May
- May 2: Victoire Weasley
- May 15: Pomona Sprout
June
- June 5: Draco Malfoy
- June 23: Dudley Dursley
- June 28: Dobby
July
- July 30: Neville Longbottom
- July 31: Harry Potter
August
- August 11: Ginny Weasley
- August 18: Celestina Warbeck
- August 19: Porpentina Goldstein
- August 22: Percy Weasley
- August 26: Dolores Umbridge
September
- September 19: Hermione Granger
- September 25: Garrick Ollivander
- September 26: Quirinus Quirrell
October
- October 4: Minerva McGonagall
- October 17: Filius Flitwick
- October 30: Molly Weasley
November
- November 3: Sirius Black
- November 22: Silvanus Kettleburn
- November 29: Bill Weasley
December
- December 6: Rubeus Hagrid
- December 12: Charlie Weasley
- December 31: Tom Riddle (Lord Voldemort)
These dates are compiled from various sources, including J.K. Rowling's writings and official publications.
