The forward scored five goals in four games for the Championship side during the month.
The 28-year-old began the month on loan with the Owls from Norwich City. And while his record for Wednesday before the turn of the year was uninspiring - as he scored just two goals in 10 games in all competitions - he took his game to another level during the month, scoring braces in the games against Bolton and Leeds.
Although the local derby against the Whites was the last fixture of his loan spell, he obviously did enough to convince Carlos Carvalhal that he was the kind of striker who could propel the club into the Premier League, as his move was made permanent towards the end of the month.
And he justified Wednesday's decision to keep him by scoring the side's goal in the 1-1 draw with Reading, which meant that he finished the month with five goals in just four league games.
Hooper has become the fourth Wednesday player to win the award this season, with Ross Wallace, Fernando Forestieri and Lucas Joao all winning the accolade previously.