January is the first month of the year. It is the first month of the year that contains thirty-one days.
- 1995 - Rita Skeeter's article stating that Rubeus Hagrid is a half-giant is published. Hagrid goes into hiding.
- 1960 - Severus Snape is born to Tobias and Eileen Snape.
- 1994 - Harry Potter begins his first anti-Dementor lesson with Professor Lupin.