Calendar Of Birthdays - Harry Potter Lexicon

January 9 = Severus Snape (1960) January 26 = Gilderoy Lockhart (WW) January 30 = Lily Potter (DH22) (1960)

February 6 = Arthur Weasley February 13 = Luna Lovegood (JKR:Tw) February 24 = Newt Scamander (WFT) (1897)

March 1 = Ron Weasley (1980) March 9 = Sybill Trelawney (WW) March 10 = Remus Lupin (1960) March 27 = James Potter (1960)

April 1 = Fred and George Weasley (1978) April ? = Teddy Lupin (1998) April 28 = Horace Slughorn (WW)

May 2 = Victoire Weasley (YL)

May 15 = Pomona Sprout

June 5 = Draco Malfoy (BFT) (1980) June 23 = Dudley Dursley (inferred from canon) (1980) June 28 = Dobby

July 30 = Neville Longbottom (OP37, JKR) (1980) July 31= Harry Potter (1980)

August 11 = Ginny Weasley (1981) August 18 = Celestina Warbeck (WW) August 19 = Tina Goldstein (WFT) (1901) August 22 = Percy Weasley (1976) August 26 = Dolores Umbridge (WW)

September 19 = Hermione Granger (1979) September 25 = Garrick Ollivander (WW) September 26 = Quirinus Quirrell (WW)

October 4 = Minerva McGonagall (1935) October 17 = Filius Flitwick (JKR) October ? (third week) = Angelina Johnson (GF16) October 30 = Molly Weasley (c. 1950)

November 3 = Sirius Black November 22 = Silvanus Kettleburn (WW) November 29 = Bill Weasley (1970)

December 6 = Rubeus Hagrid (1928) December 12 = Charlie Weasley (1972) December 31 = Tom Marvolo Riddle (Lord Voldemort) (1926)

Besides the birthdates, there is more canon information we can gather from these:

• We learned, by order of the dates, that Hermione was either the eldest of the trio, or almost a year younger. Jo later confirmed that Hermione was older in her FAQ answer to the question from the Open Letter to J.K. Rowling.
• We have confirmation of the first names of Filius Flitwick and Pomona Sprout, which we surmised from their Trading Cards, but had not yet confirmed. (Another question on the Open Letter to J.K. Rowling.)
• We also had more information on determining the ages of the elder Weasley brothers, Bill, Charlie and Percy; and the age difference between them (months and years).
• We can assume that House-elves are born and note the date, since Dobby has a birthday.